Today we talk about the theme of the indoor swimsuit MM photography. We've talked about the beach swimsuit MM photography, but I think no one will will play at the beach throughout the summer, after all, we still have to learn and work to be done. Then the GGMM who love to swim, the pool must have is often the place to go. In fact, in the pool can also be sold for a good swimsuit photo, well, without further ado, we cut to the chase.

Beat MM's basic one-high angle or low angle

Most digital cameras will be like the mode, but the active use of this model seems very small. Because this model is almost indistinguishable from the photo shoot with the AUTO file. In fact, in the SLR camera, the role of the portrait mode will open the aperture to the maximum, the background behind the characters blur as much as Nikon Coolpix S6100 Battery Charger possible (its purpose is to separate the figures from the background, very prominent figures). But compact digital camera is basically how to adjust the aperture will not make the background there are too many empty (which is a compact DC CCD size is too small due to the specific, we do not discuss here), so the portrait mode is not much significance.

Even so, we recommend to make use of the camera's telephoto camera close-up, so how many can play the role of the virtual background. However when photographing people, the most important is not the camera what scene mode, but the real key factor at work

Sony DSC-W1 shooting parallel to the height of the eye of the photographer

Although the above three photos the same MM, POSE, but very subtle changes due to the different heights of the photography. General camera figures, we would without hesitation put the camera on the flat with the eye height. Especially male friends, taking pictures of MM, basically all male high, so when the camera is easy to form the point of view from the top. Photo MM head big body (looks shorter-than-life), the effect of this way because the reason of perspective. Otherwise general MM was made into a definitely will not be happy unless there are special intention.

The correct way is photographed should be slightly bent over, so that the camera in your posture, chest up and down height, so that you can shoot the average ratio of natural photo of the gesture. Although bent down to take pictures of some trouble, but for shooting those who are shorter than their very valuable. General in magazines or on television, we often see photographers shooting models will bend over Ha back of the scene is for this reason. </ P>

In turn, shot from below, will make the head of the figure is relatively small, the figure seems relatively high. However, we should pay attention mainly to the performance of the face. Extreme below the angle of shot, will get more interesting results.

Canon PowerShot S60 shooting, extreme low angle

How, this looks like a photo album, but shot up more difficult. More suitable for those with a rotating LCD screen digital camera to shoot. Using an ordinary digital camera you need to put his JVC GR-D347U Battery Charger head affixed to the height of the ground to shoot. If you use a SLR camera, it is even worse. So sometimes we see lying on the ground shot of Frankenstein. Both from the next shot, we must take into account the background.

Canon PowerShot S60 Shooting, taking into account background factors

To shoot photos like this from above the surface of the pool as a background, people to see that this is just out of the water feeling

Of MM two shot - wide-angle end and telephoto

In addition, a more important point is to use wide-angle end or telephoto? Clearly demonstrated by the wide-angle and telephoto difference, we use a wide-angle Canon "Powershot S60" to shoot. Using a DC wide angle end shooting distance figure is more recent, when using the telephoto camera from a distance. Let's look at two photographs.

The difference is very obvious, wide-angle end to shoot the photos, distance and shame are exaggerated, use the telephoto to shoot photos, beneath the sense of distance and three-dimensional.

Closer distance the character was shot, wide-angle end to shoot some feel more intimate photos more appropriate, and can try something more interesting POSE to increase the fun of the photo. Do not need to turn, use the telephoto photographed intentionally put any of POSE more suitable for shooting the bust phase or close-up.

Telephoto photographs can try to visit the remote photo shoot bust, short legs looks better than the photos of wide-angle end, but also lost the sense of distance, the impression that plain. If you use a telephoto shooting this POSE (such as outdoor photo activities pull, auto show occasions of the like), you can try the legs shot into the screen to enhance the sense of distance and intimacy.

Beat MM's basic three as far as possible photograph in bright

Summer, swimsuit, of course, for the kind of cheerful, bright atmosphere. Especially in summer, the beach or the pool, due to strong sunshine, sky, sea or swimming pool water, than the figure much brighter. Then, to the DC own the metering to control exposure, will beautiful MM photograph to black.
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At this time there are two ways to avoid this situation, one of which is exposure compensation.

The last beach swimsuit MM shooting tutorial mentioned the use of exposure compensation, we may wish to review here. When using the camera automatic prone figure's face is dark, cover the situation in the shadow of hair. This is because the background is brighter, so that the camera's metering system to produce the illusion caused.

However, this time using the entire screen is bright, the atmosphere of the photograph is completely different exposure compensation. Especially in the summer, the girls regardless of the sky in your photo has been exposed to the details, as long as their own white like. If the film MM feel somewhat dark, it can be supplemented to an increase in exposure compensation.

If you increase the exposure compensation is also dark, then they would have used the second method is to use the flash fill light. DC compulsory flash function in broad daylight, you can fill light. And can make the eyes appear reflective white spots (commonly known as the eye of light), very beautiful. Used properly, you can generate recurring in the eyes of the girl comic protagonist ☆ effect (, exaggerated point, but still very beautiful).

But even so, have a variety of Panasonic Lumix DMC-ZS5 Battery Charger situation, for example, sunlight is too strong, even DC flash fill light effect is not large, or because the MM distance from the camera too far more than flash effective range, according to the situation make a different response, in short, to playback at any time through the LCD screen just shoot down the photos to confirm.

Machine equipment constantly achieving miniaturization and the provincial electricity today, small power LDO linear regulators (LDO) is a switching power supply with linear regulator market mainstream. In order to achieve high performance and high speed devices with micro-computer or digital signal processing (DSP) technology are making rapid progress and development year after year, at the same time, essential for these micro-computer digital signal processor or power supply is getting low. In addition, JVC BN-VF815 Charger different manufacturing technology corresponds to the voltage difference, therefore requires a wide range of power supply voltages. To resolve this problem, the manufacturer started in the middle setting of switching power supply voltages using LSI power supply LDO regulators in new technologies. The other hand, also used in the battery devices of high current LDO regulators, seeking to maximize the efficient use of the battery voltage.

Using a DC/DC converter obtained from a high input power supply 5V voltage, and then using the buck 3.3~1.0V linear regulator voltage, this is usually the power structure. This regulator is called secondary linear regulators, near the device needs such a power structure at low input voltage supply a more stable power supply. ROHM developed BD – KA5 products suitable for this kind of secondary linear regulators (Figure 1).


Secondary regulator seeks to save more space and more stable at the same time, continue to improve it in order to adapt to the DSP, and other parts of the narrow input voltage range that must be of high precision. BD – KA5 series 500mA current capacity, but the output phase compensation capacitor can support small ceramic capacitor 1 μ f, saves the regulator take up space. At the same time, trimming technology by ROHM with independent intellectual property rights, to increase the output voltage accuracy ± 1%. In addition, through the use of p-Channel MOS transistors as the driver output transistor, even if you increase the load current can Nikon Coolpix S6100 Battery Charger also control circuit current, and thermal design. Power supply input range is 2.3V-5V, best 3.3V, 5V power input. In addition, the output voltage specifications include 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, adjustable low voltage input and output, and so on, products to meet different needs.

The other hand, gets the standard output voltage directly from the battery fixed adjustable output and the output is still essential, its peak output current increased year after year. ROHM BA – DD0 is has a current capacity of 2 a LDO (Figure 2). The series 2A high output currents at the same time, to increase the output voltage accuracy of ± 1%, and 0.5V-Ma low-dropout voltage. Corresponds to the input voltage changes, to avoid lowering the output voltage to a low input voltage limits, ensure output starting in low voltage State. In addition, 78 of the same industry standard pin configuration before the series, and ROHM 1A low-saturation regulator is compatible for easy replacement. A wide input voltage range (3~25V), the output voltage range is from 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 9.0V, 12V to 16V range.

Machine equipment to reduce power consumption does not work part, cut off power supply power management in each region. BD-and BA-KA5 series – DD0 series all models, with external logical disconnect all lines of work off switch function, 0 μA standby current consumption (typical value), and low-power design.

Both LDO regulator series products are built in various protection circuits are as follows:

1. Over current protection circuit. Automatic fall protection circuit. If the overcurrent protection circuit start working, the output voltage drop, more focused output current, so compared to the sagging-type protection circuit, to incorporate in a State of exception such as short circuit chip heat consumption control in the 1/3~1/5 (see Figure 3).

2. Temperature protection circuit. Temperature protection circuit stops automatically when the chip temperature exceeds Tj=150 ° c output to prevent chip damage due to high temperature, so as to achieve the purpose of protecting the chips. If the chip temperature drops, the hysteresis width to restore the output (Figure 4).

3. Over voltage protection circuit. Over voltage Panasonic Lumix DMC-FS37 Battery Charger protection circuit built into the BA-only-DD0 series, if present in the output above 25V surge, the protection circuit starts to improve pressure resistance of chip components, even more than 50V input voltage, can also prevent chip damage (Figure 5).

4. High hydrostatic pressure. Output of electrostatic discharge pressure for human body model, you can achieve more than 6KV, with high reliability in any environment.

Light emitting diode (LED) in such areas as industrial controllers and meters, medical devices and home appliances have a wide range of applications. Traditional LED display driver with 74HC573 and 74LS47 logic device, use the device more, consume more microprocessors I/O port and a larger Board area, especially LED a large number of cases, these shortcomings Nikon Coolpix S8100 Battery Chargerare particularly prominent. In order to overcome these shortcomings, LED display serial interface drives came into being, MAX6950/MAX6951 belonging to the class of the Maxim company introduced drive, less its input pin, driving ability, and the decoder is integrated and brightness controller.

2 MAX6950/MAX6951

MAX6950/MAX6951 is a compact, common cathode display drive, available through SPI, QSPI and MICROWIRE-compatible serial interfaces the microprocessor to the independent or discrete 7 segment LED digital tube, bar LED. MAX6950 can drive or 5-digit 7-segment digital tube LED 40 separation. MAX6951 can drive 8-bits or 64 discrete LED digital tube.

The drive contains 16 hexadecimal characters decoders (0-9,A-F), multiplex scan circuitry, and digital drives and static RAM used to store each number. LED current set by internal digital brightness control circuit.

In addition to data register, there are decoding mode register (16 hexadecimal characters decoder), brightness control register, scan limit register (allows the user to select from 1 to 8-bit display number), the configuration register (clear, flicker, shutdown). Working modes: normal mode and low-power shutdown mode, and forced all the LED turn on test mode.

Because of its unique multiplex scan circuitry, so MAX6950/MAX6951 the small 16-pin QSOP package.

2.1 internal structure

Internal structure as shown in Figure l of MAX6950/MAX6951.

2.1 pin functions

Figure 2 shows the MAX6950/MAX6951 pin QSOP package arrangement, pin functions are described as follows:

DIN (pin 1): serial data input, the CLK and the rising edge data into internal 16-bit shift register.

CLK (pin 2): serial clock input, selected CS force, rising edge of the CLK, data into the internal shift register, at the falling edge of the CLK, DOUT end of data moved.

DIGX/SEGX (PIN 3~6,10~14): drive x inhalation from display altogether cathode current output, x-drive monitor output current,/drive is in a high-impedance state at shutdown time.

ISET (PIN 7): the current set, the resistance between pin and GND RSET, set peak current, the resistors and capacitors with CSET also set multiplexed display of clock frequencies.

GND (PIN 8): power supply.

OSC (PIN 9): multiplexed display clock output.

CS (pin 15): circuit selection inputs, low level, serial data into the shift registers, CS upward along the latch of the last 16-bit data.

V+ (pin 16): Power port.

2.2-how it works

Micro-controller to send 16-bit serial data into the shift registers (sequence as shown in Figure 3), the CS signal to jump into a high level, data is loaded into the 16-bit latch, then on the latch in the 16-bit data to decode and execute the appropriate command. High 8-bit to 16-bit data is address low value is 8-bit registers. About specific sets of registers and control features, see [1].

3 application examples

Following to this circuit is MAX6951 drive the digital display for example. Driven by an industrial controller with MAX695l 8 digital, microprocessor is the ARM7TDMI core LPC2214 PHILIPS company, software development platform for ADS1.2, by programming the MAX6951 control. In this design, did not use the SPI port, but using LPC2214 3 General purpose I/O port (P1.15, P1.16, P1.17). Simulation of Figure 3 sequential transfer data to MAX6951, to complete a variety of control and display functions.

3.1 hardware circuit

Hardware circuit as shown in Figure 4, which DIN, CS and CLK LPC2214 respectively connected to the P1.15, P1.16, P1.17. Because of its unique pin multiplexing requires 8 display (digital) of each line ofPanasonic DMC-TZ1 Battery Charger code is not the same, and each show altogether cathode connections are not the same, as shown in table 1.

3.2 software design

Software includes 3 I/0 initialization, timing and analog inputs to initialize registers to match demand. Control brightness, flashes, and refreshed a number or character display and other functions can be completed by calling the data entry functions, these functions can also be packaged for the child functions to simplify application.

3.2.1 initialize I/O port

Initializes the I/0 macro definition and program code are as follows:

3.2.2 input timing simulation

In accordance with the sequential write input function, as shown in Figure 3, the code is as follows:


3.2.3 circuits initialization

MAX6951 the electricity on, the circuit is in shutdown mode, register with the initial value, for which initialization is needed to meet the system requirements. For instance, initialized to the normal mode, 8 digital tube display "0" brightness to maximum and not blinking, codes are as follows (command words meaning see [1]):

4 similar circuits

Serial LED display of input drive there are many kinds, such as ALLEGRO Corporation A6275/A6276/A6277, STMicroelectronics company (ST) M5450/M5451 series, United States national (NS) LP3943/LP3944 of Texas instruments (TI) TLC59xx series. The less number of drives or drive LED, A6275 (8) and LP3943 (16), or pin a large number, such as the M5451 (PLCC44 or PDIP40), TLC5920 (SSOl48). Also, with built-in decoders and brightness adjustment, and more rarely. MAX6950/MAX6951 deficiency is higher prices and,JVC GR-D796 Battery Chargertherefore, this drive suitable for high requirements such as size, power consumption, and is sensitive to costs are not small or handheld devices.

MAX6950/MAX6951 LED shows the drive easy to use, can do more complex display features, saving board space, set-top boxes, white goods, industrial controllers, medical equipment and instrument, dot-matrix displays, and widely in areas such as the bar.

For the lithium-ion battery pack manufacturers, building secure and reliable products for battery-powered system is vital. Battery pack battery-management circuits can monitor the operational status of lithium-ion batteries, including the impedance of the battery, temperature, voltage, charge and discharge currents, charge status, system provides details of the remaining running time and the battery health information to ensure that the system made the right decision. In addition, in order to improve the safety performance of the battery, even if only a failure occurs, such as overcurrent, short circuit, modules and battery packs such as high JVC BN-VF808U Battery Charger voltage, high temperature, system will also shut down two and lithium-ion battery back in series (back-to-back) protection MOSFET, disconnect the battery unit. Tracking technology based on impedance of battery management unit (BMU) throughout the cell cycle monitoring unit of impedance and voltage imbalance, and has the potential to detect tiny battery short circuit (micro-short) to prevent battery units cause fires and explosions.

Safety of lithium-ion batteries

Too high a temperature will accelerate the aging of the battery, and can lead to thermal runaway of the lithium-ion battery pack (thermal run-away) and explosions. For lithium-ion batteries for high activity of energetic materials, this is an area of concern. May cause excessive charging current and short circuit the battery temperature rising fast. Lithium-ion battery during overcharge, active metallic lithium deposited on the positive side of the battery, the material greatly increases the risk of explosion, because lithium is likely to react with a variety of materials, explosion, including electrolyte and cathode materials. For example, lithium/carbon intercalation compounds (intercalated compound) react with water and releasing hydrogen, hydrogen has the potential to be ignited by the reaction exothermic. Cathode material, such as LiCoO2, at temperatures above 175 ° c temperature limit of thermal runaway (4.3V unit voltage), it will start to react with the electrolyte.

Lithium-ion batteries using a thin microporous membranes (micro-porous film) material, such as polyolefin, battery positive and negative electron isolation, because such material with excellent mechanical properties, chemical stability and acceptable price. Low melting range of polyolefins, for 135 ° c to 165 ° c, makes the polyolefin thermal insurance applies as (fuse) material. As temperatures rise and reach the polymer's melting point and porosity of the material will fail, the purpose of which is to make lithium-ion does not flow between the electrodes, so as to cut off the battery. At the same time, thermal ceramics (PCT) equipment and safe discharge (safety vent)-lithium-ion battery provides extra protection. Battery enclosure, generally as the negative terminal, usually a typical nickel plating of a metal plate. Shell seal case, metal particle contamination inside the battery. With the passage of time, particles may migrate to the isolation and insulation aging of the battery between anode and cathode. Micro short circuit between the anode and cathode will allow the electronic flow of wanton, and eventually the battery failure. The vast majority of cases, this type of failure is equivalent to the power supply and batteries do not function fully terminated. In a few cases, batteries could overheat, melting, fire and explosion. This is the main cause of recent reports of battery failure, and forcing many manufacturers to recall it.

Battery management unit (BMU), and battery protection

Battery materials development increase the upper limit temperature of thermal runaway. Meanwhile, though the battery must pass strict UL safety test, such as UL1642, but provide the right charge State and very good deal with a variety of possible electronic fault is still the original duties of system designers. Over voltage, over current and short circuit, thermal State and the external discrete component failures have the potential to cause cell mutations fail. This means that the need for multiple protection – within the same battery pack protection circuit or with at least two independent mechanisms. At the same time, also hopes for testing battery internal short circuit of micro electronic circuits to avoid battery failure.

Figure 1 shows the block diagram of cells within the battery pack battery management, its composition includes the electricity meter integrated circuit (IC), analog front-end circuits (AFE), independent secondary protection circuits.

Figure 1. Battery management unit

Circuit design for accurate power meter indicates that the lithium-ion battery power available. Unique algorithm allows real-time tracking of the circuit the battery pack changes, battery charge capacity of circuit of resistance, voltage, current, temperature, and other information. Power meter automatic calculation of rates of charge and discharge, self-discharge and aging of cells, battery life power measurement of high accuracy within the period. For example, a series of patented impedance track power meter, including bq20z70,bq20z80 and bq20z90, are provided within the period of battery life up to 1% accuracy of measurement. Individual thermistor is used to monitor temperature of lithium-ion batteries, to achieve battery cell overheating protection, and for charging and discharging qualified. For example, cells are typically not allowed below 0 ° c or higher than 45 ° c in the temperature range of the charge, and does not allow thePanasonic Lumix DMC-LX5 Battery Charger battery discharge when the temperature is above 65 degrees centigrade. Over voltage, over current is detected or overheating, AFE IC power meter instructions control off the charge and discharge MOSFET Q1 and Q2. When the battery voltage is detected (under-voltage) State, then the command AFE closed discharge MOSFET Q2, and at the same time maintaining the charge MOSFET open, to allow a battery charge.

AFE's main task is to overload and short circuit detection and protection MOSFET, battery charge and discharge unit, as well as on the other line components, avoid the over current status. Overload test for detection of battery discharge flow of current (OC), and short circuit (SC) test is used to detect on a flow of charge and discharge currents. AFE circuit overload and short circuit qualified and delay time can be set by electricity meter data Flash programming. When it detects an overload or short circuit, and reached the program to set the delay time, the charge and discharge MOSFET Q1 and Q2 will be close, detailed status information is stored in a status register, AFE, voltmeter to read and investigate the reasons caused the failure.

For measure 2, 3 or 4 lithium ion battery pack power meter chip set solutions, AFE play a very important role. AFE offers all the high voltage required interfaces as well as the hardware overcurrent protection characteristics. The I2C-compatible interface provides access allows power meter AFE AFE registers and configuration characteristics of protection. AFE integrated battery unit balance control. In most cases, in a multiple-cell battery pack, each independent unit of charge State of the battery (SOC) different from each other, resulting in unbalanced voltage difference between the units. Next to the battery unit integrated AFE for each channel. This road can be used to reduce the charging current to each unit, enabling units during the charging of the battery SOC balance provided the conditions. Track based on impedance voltmeter on each determine the chemical state of charge of battery cell, to make the right decision when the need to balance.

Multipolar overcurrent protection with different activation time limit (as shown in Figure 2) making batteries more robust protection. Power meter with two layers of charge/discharge current protection setting, AFE offers third level discharge over-current protection. In short circuit condition, MOSFET and batteries may be destroyed in seconds, power meters rely exclusively on AFE chip set to automatically shutdown MOSFET to avoid damage.

Figure 2. Multistage battery overcurrent protection

When the power gauge IC and their associated with the AFE with overvoltage protection, voltage monitoring sampling features limit the response time for this kind of protection system. Most applications require rapid response and real-time, independent voltage monitors, and operate in conjunction with power gauges, AFE. The monitor is independent of the electricity meter and AFE, monitor the voltage of each battery cell, and for each to achieve hardware encoding batteries provide voltage limit of logic level output. Over voltage protection of response time depends on the size of external delay capacitor. In a typical application, second level protection output will trigger a chemical fuse failure or other protective equipment, permanent separation of lithium-ion batteries and systems.

Permanent failure of the battery pack protection

For battery management unit, very important is to for an abnormal state of battery pack provided tended to be conservative in cut off. Permanent failure of discharging and charging failure of protection includes the current state of discharge and charge State of safety, thermal safety, overvoltage fault status (peak voltage) and battery-balancing fault, FET shorted discharge power, MOSFET failures under State security. Manufacturers may choose any combination of the above permanent failure protection. When any such failure is detected, chemical fuse fuse protection device, so that permanent failure of the battery pack. As a failure of electronic components failure of external validation, charge and discharge MOSFET battery management unit design is used to detect whether Q1 and Q2 's failure. If any charge or discharge MOSFET circuit, the chemical fuses fuse.

It was reported that micro short circuit inside the battery is also causing major causes of recent battery recalls. How to detect micro-short circuit and prevent the battery inside the battery is on fire and the explosion? Shell closed during processing, metal particles and other impurities is possible pollution of battery internal, thus giving rise to small short circuit inside the battery. Internal micro-short circuit will greatly increase battery self-discharge rate, open circuit voltage battery unit than under normal conditions can be mitigated. Impedance track electricity meter monitor open-circuit voltage, cells and thus detection of non-equilibrium – when the different Nikon EN-EL19 Battery battery cell circuit voltage differences exceed pre-set limits. When this type of failure occurs, will have a permanent failure alarm and disconnect the MOSFET, chemical fuse can also be configured as a fuse. Such behavior makes battery packs for power and thus shielding the battery pack cannot be micro short circuit the batteries inside the unit, so as to prevent the occurrence of a disaster.[code][/code]

As a descendant of a simulated world, I often hear some comments on the porch, on the issues of digital simulation of how designers do not understand. Digital designers have mercilessly criticized the analog IC Designer. The two camps hold unless the participants to break boundaries, into the mixed-signal research in the area.

Simulation of typical spirit, not all converters with the same data format. Convert unsigned binary types used, other converter using a signed binary complement data. Even more Nikon D40 Battery Charger complex problems, the converter output 12-bit or 14-bit data, there are 16-bit output. There is another 24-δ-σ conversion technology.

Whatever the purpose of the simulation results. For the purposes of these converters, ADC position of the least significant bit is the 8-bit, 16-bit or 32-bit No. 0 of word processors. Analog circuit designers, this is of great significance. However, the 12-bit converter is the sign bit of the processor's 11. If 16-bit width of the variable c to the converter output values, assuming that the c symbol is 15. Processors from the converter identifies negative, all data from of bipolar 12-bit ADC is positive. Because the sign bit is in the wrong location.

You could take a few steps to solve the problem. First of all, read-modify-write procedure, the processor data transfer in the register. Read CPU registers that contain data, move the data to the necessary location, and then write that data back into memory. Transposition of DSP to complete in one clock cycle. Controller requires a lot of clock cycles to complete the process of transposition. If you use this control policy, be careful of buffer is not continuous. This means that the cache cannot tell if a Panasonic Lumix DMC-FP7 Battery Charger DMA controller to write new data to memory. The result, CPU cache of old data and shift operation. Need to keep in mind is that whenever he moved a bit to the left, has meant that the ADC conversion result by 2.

Another way is to move data to the right in your processor cycles. Disadvantages of this approach uses CPU and require additional instruction. Another option is the converter directly connected to the processor data bus. If you are 12-bit converters attached to 11th and 15th on the processor bus, then the symbol will be in the correct position. And 11th to 14th position of the data gets zero complete data, these data are uncertain. This method applies only to the parallel interface. In this scenario, the DMA-based mobile data transfer is not required.

Than users who use the serial port and parallel port users are lucky because most of the processor's serial ports to receive "left believing that zero-padded to the minimum significant digits" or "extended sign bit to the most significant bit to the right" features. This feature significantly reduces CPU processing data in memory. Number of serial ports only work when the receive data length is a power of 2, for example, 16-bit data length. These ports do not work at 12, 14 or 24-bit data length.

Simulation engineers to help handle the processor interface problems. As far as I know, the processor is 8-bit, 16-bit or 32-bit, I've never heard of a 12-bit or 14-bit processor. Unless all of the analog chip JVC AA-VF8 Battery Charger design by breaking through the boundaries, otherwise design digital interface for granted. Read the ADC data sheet, position of the check to the digital interface transport. If the ADC data interface does the initial check, then you would start paying for more success.

HC network security in the age of simulation, security industry chain as "manufacturer-distributor-contractors-user" mode, one mastering voice is more contractors. As security into the digital network stage, however, due to the integration of demand continues to improve, many contractors integration capabilities to meet the needs of users and services increases and lack of vendor services contractors network talent moves forward, eventually leading to channel in the industry's value chain to be slashed.


Beijing frog communication technology limited liability company marketing director Ma Jianguang, said: "China security market in the past, equipment operators and programme providers Panasonic Lumix DMC-FZ35 Battery Charger need to pass user information through the Integrator. And now more manufacturers start user to provide total solutions for the industry. Manufacturers more close. ”

Although you can contact for more users, obtain first-hand information, but many services companies still lack of human resources. Therefore, as a consolidated, integrated, compatible with important roles, status of Taiwan has become increasingly important.

Tianjin Samsung Thai branch photoelectron limited China area strategy sales Minister Shen Dongjin said: "as foreign brand, Samsung has been in efforts do China to of compatible work, including and different area, and different industry of standard compatible, and and and all large flat Taiwanese products between of compatible cooperation; while, Samsung themselves of NET-I platform, also in constantly to perfect localization of performance, to party a user has more of select. Such efforts, Samsung in China's electric power, telecommunications, Government, education, in the field of intelligent building network first starts by monitor, has become one of the most active foreign brands. ”

Shenzhen lang Chi Hsin chuang Zhao Xin, Deputy General Manager, said: "under the trend of network, lang Chi adopt an open-minded attitude, like many platform partners, strengthening complementarity of core partners for mutually beneficial cooperation. ”

Who will be monitoring Windows

With its growing position in the industry, the platform also fierce competition between manufacturers. Platform mainly for compatibility and better, more stable product, specific industry related functions developed by the integrated business software. Visible competition between platforms in the future competition will be the best integrator in different industry. Daily force chairman Liu Guangyou said: "the net force has been actively working with the industry in the East of integrators to establish extensive cooperation, especially in the Christmas city, and integrators to develop much closer to actual combat, allowing police to better application of Nikon Coolpix S80 Battery monitoring equipment. ”

IMOS, and additional H3C will be cooperation in the work center. The Guangzhou sea network technology limited CEO Lai Menghai duo said: "the platform itself should first have good stability and compatibility of products, both products to be more open, easier integration according to the SDK to develop appropriate monitoring software, so as to enable more integrated with your platform. "Taiwan next year will be very fierce competition, in the case of front-end vendor initiative to find a platform provider for compatibility, Taiwan businessmen more effort will be put into competition between the Integrator. Aimetis business development manager Cao Jianhua said: "video management platform in the future will no longer be the party demands focus, stability and simplicity of operations was the focus of the new. ”

Consumers still value the hardware

From the beginning of the software platform available, whether IT is in the security industry, Chinese consumers to pay to buy the software still has a difficult to change habits. Thus in its own position in the chain began to improve when, some platforms and large integrators, has started its own security products. Beijing Johnson control systems sales manager Ma Duanning said: "China's security market is a product-oriented, China security market is large, and the small market share of Johnson, which is the headquarters of strategic adjustment of important reasons for final products in the Chinese market.

"It is reported that Johnson will be based on the building industry to their advantage, promoting their security products, product features outstanding integration capability.

H3C to launch their products, former Vice President, storage and multimedia division H3C yanxiaqing said: "H3C positioning is a supplier of products and solutions.

Roles of the solution as a whole, H3C do not each product, but covered in key industries, as well as the value of solution needed in product, we only have to be done. ”

Trained as 2012 plays

Of course, front-end vendor seek and platform compatibility is only one aspect of the product, do their own channel for training was the digital products promotion. Especially the last analog monitor JVC BN-VF707US Battery Charger manufacturers mainly in 2012 and invest more in the training of many of their channels. Xien green electronics (Shenzhen) Ltd General Manager Wen Renhe said: "digital products of the CNB will continue past the channels of analog cameras, so the original channel of training one of the CNB will be the focus of next year, will put more money and manpower training. ”

Digital China (China), security service General Manager Chen Jinwen said: "from analog to IP, technology changes, distributors must re-learn the industry knowledge, at the same time, out of its original capability also brought a certain amount of pressure. Pressure on both channels of coordination and guidance of the manufacturers put very high demands. Digital China AMPON (An Peng) always pay attention to the training of channels, last year set the gang system of training, developed a detailed training plan this year, on-site training and communication, using Group resources to help channel fast growth. AMPON (An Peng) channel of hope through the rapid development of brand-driven development

National development strategy of digital city digital community and important part of the digital home applications included in the national digital technology. Country enactment of the buildings and residential areas of digital technique application of national standards, information sharing and network convergence for communities and families to develop common standards and protocols, as intelligent technology from "intelligent buildings" to "digital home", households. In recent years "digital home" suddenly and frequently appears on all major media at home and abroad, in time became a real estate developer sales "selling points". Then reach a standards and patterns of what one might call "digital home"? While some economically developed countries put forward a few years ago, "digital home" concept, however combining digital intelligent real family and community development in our country's actual needs are what? These issues need to be intelligent building industry experts to answer.

What is the "digital home"?

"Digital home" in the commonly used in English "SmartHome" to represent. And reference at home the more diverse, such as intelligent family (IntelligentHome), home automation (HomeAutomation), home gateways (HomeGateway), the digital home (eHome), network-home (NetworkHome). Despite reference different, however its reflected of connotation is: in has personalized of residential family in the implementation multiple network information, diversification of Panasonic Lumix DMC-FS16 Battery Charger automation control and energy-saving environmental, function integration to integration of family intelligent information management and automation monitored platform Shang; "digital family" of core is family intelligent of technology of application, is Internet technology, and moved communications technology, and Automation control technology, and energy-saving environmental technology of integrated application integrated.


Digital home platforms will work with home life related to the separation and application of functional organic combination of relevance as a whole. Digital home you typically create two application platform:

First, you must have a strong digital home platform compatibility (for example: "family intelligent unit" or "residential gateway"), it is the "digital home" heart, can also be understood to be a domestic producer of electrical automation and information network and security management center. It's there, tenants can and within the family a variety of intelligent applications for fast communication, and the remote control and remote control. Digital home platform, is the most basic material conditions of the digital home.

Second, demand to have a home network platform, which is the basis for establishment of information networks and family control network convergence, it is not only the broadband connection to the home, at the same time through a home network platform in the residential telephone networks, television networks, computer networks, and home automation monitoring and control network rational unified home network platform in the fusion of.

Real life environmental technology applications and digital home network support. Digital home platform and home networking platform integration, will house all of the computers, telephones, television sets, faxes, printers, scanners, digital cameras, video intercom camera, or even network appliances are connected through a home network to the integration of the smart platform. Concentration and distribution, through the combination of wired and wireless approach, enabling the information for all links on the home network and communication terminal, home appliances, security alarm system for browsing, monitoring, and remote control, ultimately meet the household family comfort, safety, convenience and environmental protection requirements of modern life and living environment.

"Digital home" broad market

"Digital home" which will significantly change the way people live, work, and affect the real estate, renovation, property management and the IT industry and a large number of industries such as home appliance manufacturing. Since the world's first intelligent building in 1984 in the United States after the, United States, and Canada, Europe, Australia and Singapore and other Southeast Asian economies more advanced countries and regions have made the "digital home" solution. Although foreign "digital home" market has only just started, but has appeared to the world many companies strive for fresh "gold" of the digital home market.

According to United States an authoritative market research institute predicted that the next two years with nearly 100 million families build a home network. Haier, TCL, Huawei, ZTE, a number of domestic appliances and industrial companies also will be the next generation of the smart home appliances and communication product research and development direction of "digital home" and "network appliance". Application of intelligent technology, research and development of "family intelligent system products" is the direction of further development of intelligent building.

Smart gateway data sheet

Singapore new electronic systems Corporation from 1994 to the China intelligent building market, specializing in the design of intelligent building, intelligent product research and development of the system and intelligent systems engineering contract. Especially in recent years the product research and development focus locked on "digital home" system product, between 8X and until 8XG. Now welcomed by market 8XE/G of Visual digital dual screen home intelligent system products, widely used in the western suburbs of Beijing Olympic Garden, Shanghai, Guangzhou Hui Jing Xincheng, Guangzhou Shanshui Ting Court Manor, Guangzhou China, Shenzhen honey Lake Pavilion at Cannes, nanguo Olympic garden flowers such as digital community and "digital home".

Intelligent Home Gateway (HomeIntelligentGateway) represents the development and application of intelligent digital home and digital technology trends and directions. Intelligent Home Gateway in the application of JVC BN-VF707U Battery Charger computer technology, Internet technology and automatic control technology on the basis of fully integrated browser technology (Web/s), mobile communications technology (2.5G/3G), a home wireless LAN (802.11), Bluetooth (Bluetooth), infrared technology (IR), as well as home wireless control technology (HomeRF). Real information (including the monitor image information), network, and control integrated in networked intelligent home gateway platform, the households provided by a wireless Internet 2.5G mobile phone, you can free to browse the network information, home entertainment, make phone calls, send SMS/MMS newsletter, control of home electrical appliances.

Digital family intelligent gateway (HGW) further application family Web/s, and 2.5G/3G and HomeRF, high-tech technology, makes its more has and Internet full of open and and moved communications system full of compatibility, digital family intelligent gateway through various high speed interface will family security alarm, and lighting control, and network appliances, and Visual on told, and network camera, and family entertainment facilities, and phone, and TV, and computer and various information and communications terminal are connection to family intelligent gateway up, Realization HGW-centred, family four centres to be consolidated into one, that is, information center, home of the family network centers, family entertainment center and family monitoring centres.

Households provided through a mobile handheld touch wireless network information computer and 2.5/3G phones can browse, watch TV, VOD on demand, send the SMS/MMS newsletter, dial the IP video phone, display images and video intercom visitors home entertainment remote control lock, remote control, regulating light illumination, control family network appliance devices, monitor security status, displaying a webcam surveillance images. Especially since HGW device with 2.5G/3G mobile communication system and wireless networking capabilities. Through the multimedia news service (MMS), image, voice and text and the cell phone, Web browser and HGW linked together, greatly enhancing and expanding the family of intelligent features and applications. Community property management are also available through digital home gateways and intelligent IC card authentication, provide community e-commerce and online billing and other value-added services. By intelligent home gateway really traditional telephones, televisions and computers feature integrated with the Web application and automation technology, creating a new family of intelligent life.

Development of the industry needs to

Of intelligent and digital technology in "smart buildings" and "digital home" application will greatly promote the application of digital technology in the development process. Information construction in China has included digital home and digital community as an important development goal. Digital home is linked in the digital city, and Nikon D3 Battery Charger even the digital earth one node on the network, will allow the person to person, people and information, Exchange and interaction between people and things can be at any time, any place and any object.

Talk about DV feature, maybe a lot of people will find that many technologies seems to be immutable, seen this year, can still be seen next year. Is simply a little taste of new bottle. If you are talking DC, people say, I am afraid that many don't understand with reason, rapid growth, LCD, increasing the ISO sensitivity, also there are many new features, and more. Actually in many understanding of people eye in, DC although technology progress more fast, but many technology are JVC BN-VF707U Battery Charger just a cover-up operation, such as ISO speed of improve, in used CCD of physical photographic components era, far than film of ISO photographic improve came easy, may focus is not speed can improve how many, but improve Hou of effect, is letter noise than can reduced how many, if noise points cannot control, screen effect difference, I'm afraid many new function are just chicken only.

DV technologies seem more mature and conservative, but in fact, change is not. Products this year than last year's progress capabilities have increased a lot. In General, and some features are characteristic of reservations last year, some high-end to low-end DV DV transplantation, some belonging to the new development. In any case, for DV very mature products, promotion of each function and the changes are welcome, after all, dynamic research and development of products to be harder than the static. These new features are practical, what is a chicken or a cake we consumers need to know this. Because we purchase DV in the final analysis is used to make a video recording, does not function in the bells and whistles, can play the effect is the best, is the bear's paw, or the chicken. Now pay attention to is from a live consumer, spend money, can't buy a practical product is wasted.

First, touch the screen

Almost all DV is the use of liquid crystal display (Sanyo brand DV model instead of a normal LCD screen), the main is to help the photographer better and multi-angle screen shot also provides playback viewing Help. Because when you are working in DV, so the earliest exposure to and understanding of DV, all through the LCD screen. So DV LCD screens for better or worse, also determines the worth of DV and grades. Touch-sensitive LCD screen first appeared on the Sony DV, 2002, and was the LCD touch screen is far less now ripe, many features can also be used to complete, can be considered a prototype and Nikon MH-65 Battery Charger the price is high, not to mention lower-end products, in the end product is not equipped with. In the new DVD905E 06, Sony uses its own research and development of Super crystal color display for the first time, apart from having touch control features, screen resolution up to 211,000 pixels.

In accordance with the touch screen works and transmission of information media, DV using a resistive touch screen, the touch screen control using pressure-sensitive. Resistance touch screen of main part is a and monitor surface very tie of resistance film screen, it to a layer glass or hard plastic flat as grass-roots, surface coated has a layer transparent oxidation metal conductive layer, above then cover has a layer appearance surface hardening processing, and smooth anti-wipe of plastic layer, dang finger touch screen Shi, two layer conductive layer in touch points location on has has contact, resistance occurred changes, in x and y two a direction Shang produced signal, then sent to touch screen controller, controller reconnaissance to this a contact and calculation out (X,Y) Location, depending on how to simulate a mouse operation. This is the most basic principles of technology for resistive touch screen.

Touch screen of appeared, greatly convenient has people for DV menu of set and operation, also greatly simplified has DV machine who complex of button, is because see has DV touch LCD screen of features, many DV manufacturers has in its its products configuration, such as Panasonic, it of products on has and Sony as of touch LCD screen function, despite this may increased some cost, but using in the help also is is large of. However due to the LCD touch screen more delicate, so for conductive materials such as water and oil are more sensitive, if the consumer does not watch, easily damaged and need to clean with a soft cloth after each use, otherwise the screen is very dirty.

Second, optical anti-shake

Apart from touch-sensitive LCD screen people attention this year, optical anti-shake are starting to become an important feature of DV feature. This may be from the impact of low end digital camera optical anti-shake system configuration. No matter what is DV, are equipped with an anti-shake system, one is electronic anti-shake, and second, optical anti-shake.

General electronic and optical anti-shake anti-shake what is the difference between them? Optical anti-shake is detected using circuit after dithering of the lens, with motor-driven camera lenses within a group, in the optical axis of horizontal or vertical, mechanical movement to compensate for jitter of the image on the CCD. Principle and manufacture of optical anti-shake is more complex, the cost is relatively high. Electronic anti-shake principle is to use more pixels of Nikon Coolpix S220 Battery Charger the CCD, recorded with circuit to analyze which pixels of the image is clear, which is vague, and then discard fuzzy image, select clear pixels down. Thus, we can see that of lenses for optical stabilization is an active movement to rectify images of shaking, may of course has made to the virtual screen. Electronic anti-shake is just passive power processing, method of mathematical operation used to select the relatively clear image, so the effect is generally not very good.

Optical anti-shake for cost reasons, are not common enough on the DV, with a lot of Panasonic, optical anti-shake is a very practical for DV feature, and LCD touch screen.

Third, the 5.1-channel output

5.1-channel has been widely used in various traditional cinema and home theater, audio recording of some of the more well-known compression formats, such as Dolby AC-3 (DolbyDigital), DTS are 5.1 sound system for technical blueprint. In fact, comes from 4.1 surround 5.1 sound system, the difference is that it added a central unit. This central unit responsible for less than 80Hz of audio programmes transmitted signal, when enjoying movies in favour of strengthening the human voice dialogue focused on the middle of the field as a whole, in order to increase the overall effect. Believe every real experienced DolbyAC-3 of friends will be impressed by the 5.1-channel sound.

Compare with DC, DV to not only record screen, more of a site collection and restore sound real. In fact, according to the current DV specification, record a 12bit four-channel audio signal is perfectly possible, but mainly a post-production way, so if combined with support for 5.1 channel DV users of DVD audio enjoyment level. it is for this reason, this year's Sony 5.1-channel output has spread to the port on DVD models. But the sound system DV will bring a certain level of cost pressures, in fact, low on DV models, and even video effects can not guarantee very good, so output seems to be some good sound effects do not meet the general consumer demand. High end DV equipment is possible, but in the end DV does not seem to be necessary, too fancy, and not a very useful feature.

Four, double recording

A new concept of functionality was first developed by Sony. Dual recording feature shot in dynamic mode 2.3 million pixels can capture high-resolution still images. Due to limited conventional imaging sensors read speed, shooting still images only with VGA video mode sizing storage. You want to capture high-resolution still images, you need to change the shooting mode. Dual recording functionality through the enhanced imaging processor ClearVidCMOS sensor reading to a large number of pixel data.

Dynamic press photo shot to capture static

This is a new and interesting features, not only to maintain dynamic picture and static picture can be taken directly, this feature is present only on the high end DV models, has not been universal. This function actually currently for also is often development future of, after all who are wanted to has dynamic image of while and can records Xia static shooting of happy, so apart from cost too high, this function on CCD or CMOS of Panasonic Lumix DMC-FZ18 Battery Charger pixel also has great of requirements, therefore universal of difficulty also comparison large, currently defined for chicken or paws are too early, after all has so high of price support, which consumer will mind more a interesting of function Ah? Consumption levels are different, have different needs.

Five, AV input and output

AV input and output functions cannot be lumped together. As a camera, whether it's home or professional, AV output always exists, otherwise can't monitor and TV is. Input function on each DV has not, at least low-end digital cameras don't, albeit a AV screen terminal plus a processing circuit, but it can provide input for AV video, still not small. For no AV input needs friends, of course, this feature is optional. But in their daily lives, we believe that this feature is to keep some important image data would be very useful.

Emerging digital home networks more bandwidth, as well as voice, video and data transmission, storage and management for original equipment manufacturers to make a series of new challenges, this article from security, system architecture and standards provide solutions and make the media servers and media adapter designs.

Development of digital home networking can be divided into three phases. First phase of the home network generally is relatively simple, in most cases only a PC with a broadband modem is connected to wide area network (WAN), families with little or no local area network (LAN) connection. Whether it is based on ADSL, cable, or fiber, these new broadband service "always on" property and increasing the available broadband services allows multiple users to share at home possible. When the user leaves their host upgrade, usually PC machines will not be thrown away, but for use by the other members of the family, which soon promoted the development of Panasonic DMW-BCF10PP Battery Charger phase II-multiple users home network appear. On the broadband modem LAN side adds an Ethernet router, can help multiple users with broadband WAN connections in the home advantage.

In the second phase, the commercialization of broadband routers, gateways and IP sharing equipment gradually allowing users only have to increase the minimal cost to implement a basic home network. In addition, the cost of Wi-Fi technology provides wireless connectivity for quick drop of more than one PC at home feasible options and addresses the physical wiring in the trouble and cost in the room.

Other than the two drivers, digital home network coincided with the second phase of the development of consumer devices demand high, such as digital cameras, digital cameras, digital music player. Emergence of such a device to expand the home personal computer for storage, editing, and digital media playback devices. As digital media content on your home network continues to grow, digital home networks has entered the third stage of development, consumers need more peer sharing power. At the same time, also need to transfer the content to devices other than traditional PC networks, such as TV and stereo set and other traditional play equipment.

Media adapter and media servers

In the third phase of the development of digital home networking, in addition to the PC in digital home networks and residential gateways/routers outside again media adapter and such new media server device. Both of these important commitments of networking equipment can only be done by PC media processing tasks will be streaming out of the many media processing tasks from the PC, to form a Center-free network structures. Figure 1 illustrates a network topology where the data from a network share, you can use PC management and intervention, also without PC management and intervention.

Media adapter is responsible for preparing streaming multimedia content in a digital home network, playing in the home entertainment equipment. These devices must be capable of receiving, decoding and playback, including compressed video and still images, audio files of the media stream. On the function, and traditional media adapter PC machine very similar to the video and audio subsystem, you need to decode capability that is similar to transform the input data stream. This type of equipment required for critical systems include connected digital home network wired or wireless LAN connections, as well as support for media formats (MP3, JPEG, MPEG, etc) decoding hardware and software. In addition, more complex media adapter can support digital rights management (DRM), and you can play a wider range of media types.

Media Server is a network of shared storage devices, is the center of streaming multimedia content in digital home networks. Without PC intervention, management, or service, the media server to complete the file-sharing and direct data storage. Digital home network media server needs to provide the ability to capture, encode and transmit multimedia content, its performance and system requirements typically are much higher than the media adapter. In addition to LAN and/or outside WAN network connectivity and Nikon EN-EL10 Battery Charger management capabilities, Media Server system requirements include: support for multimedia coding capabilities, can capture and encode analog data stream in real time to create digital media streaming; supporting the standardization of hard drive IDE controller interfaces to connect hard drives to store media streaming; direct support for media creation, and peripheral devices, such as a digital camera. Currently popular peripheral protocols for USB and IEEE1394 (FireWire).

Media adapter and powerful media server on behalf of the first batch of new home networking devices, support outside of the traditional PC subsystems storing and sharing media content, which makes it easy to access and use within the family.

Emerging application architecture and system requirements

As an emerging application areas, multimedia appliances face two major challenges required in designing system architecture phase to seriously consider and address these challenges. First of all, in terms of network connectivity, and multimedia formats and peripheral interface, there are a large number of standards. Therefore, you must choose from standard combinations to meet consumer demand. In addition, network and connectivity standards continue to evolve, new agreements are emerging, multimedia appliances device design engineer must ensure that the system can keep pace with these changes. Successful design must be flexible to support the current interface technology, but must also be able to easily support new standards or standards change and addition of new features, but do not have to bear additional costs arising from the comprehensive system design, and the resulting risks that may result in missed market window.

For resolved these design challenge, first should makes system design has may extended sexual, while has enough high of processing performance, to meet function changes and standard evolution by needs of additional hardware and software support; second, should design a flexible of module of system, to in support now and the future of main interface and peripherals Shi does not needs large of again design, and related of cost expenditure and pay time cost.

In emerging markets, product launch time is of the essence. If the first generation of devices to catch up with the market window, increases the chance of being widely accepted by the market, allowing producers keep pace with the emerging market needs, and can participate in to make crucial decisions on market orientation and development process. Multimedia designers and manufacturers of household electrical appliances can leverage existing PC peripheral hardware and system software to achieve functional design, so as to shorten product time to market.

Key system decisions

Use off-the-shelf PC peripherals to build modular system easily adapts to changes in market demand in the process design engineers select standard interconnection agreements between PCI system can reap many benefits, because with this widely used bus, design engineers can choose from a large number of ready-made components network connectivity and multimedia support more capable components.

In order to obtain good system performance, design engineers can use the integrated communications processors, these processors have a high bandwidth PCI interface, can support multiple external during the primary, along with high-performance CPU cores and memory subsystems, as well as the needs for network connection with Ethernet interface.

With such a can meets the needs of this emerging application CPU, second issue of concern in the design software. Due to the combination of emerging applications such as network protocol and media support with the needs of very different applications in the past, special software for commercial software package also does not meet these requirements. Linux widely used in the field of network and PC design, it is an ideal choice to meet market demand. General wireless chipset and Ethernet device drivers available to open source, and Linux in the PC market is widely recognized, this means modular hardware design of PC peripherals and chipsets used in the Linux driver may be obtained from vendors or open source.

Although there are open for networking and PC peripherals drivers, but the best choice is still used by optimized for dedicated processor for device drivers, kernel and toolchain without royalties vertical software solutions that make up the level of integration. Software development team can focus on applications to add value, rather than from the public areas of the collaborative nature of a large number of drivers. At the same time, integrated communications processor vendors are increasingly began to provide the necessary basis for free integration code, so as to further shorten product time to market, and avoid costly licensing fees and royalties.

Security issues

In support of multimedia home network there are two important security issues. The first is to protect data on your home network from potential threats from external influence. With the proliferation of networked devices, Peer-To-Peer sharing data protection becomes more and more important, through software dedicated hardware acceleration, integration, and auxiliary system control processor can address this security issue. For many media types with a lower data rate, achieved through software can provide a lot of information appliance equipment with sufficient capacity, but for the gateway itself, hardware acceleration may be more appropriate. Network data encryption is another issue, systems design engineer can chip that employs a range of programmes to address this issue, including for software to perform the required performance of high frequency CPU with integrated or with hardware acceleration products.

With the emergence of multimedia home networking device, also produces a new class of security issues. DRM is based on the keys to ensuring network device is authorized to receive the data stream. Adapter to the media, DRM algorithm allows service providers to ensure that users can only receive the program he had purchased the data, and DRM algorithm can also be used to control the data flow. Same algorithm to the media server you Panasonic DMC-TZ1 Battery Charger can prevent unauthorized data is written to the disk array or burned on a disc. Such problems can be achieved through a variety of software or/and hardware to solve. As digital home network supporting more and more rich, multimedia content, which is increasingly becoming a systems design engineer and critical issues that must be addressed and resolved by the service provider.

Media servers and media adapter solution

IDT Corporation RC32434 Interprise processors designed for multimedia home appliances offer a program to meet the performance and flexibility. Integrates a RC32434 processor operating frequency up to 400MHz of 32-bit MIPS CPU core, as well as integrated DDR memory controller and can support up to 6 external Master PCI v2.2 interface. In addition, fast, support this processor also integrates a media independent interface (MII) and simplified MII (Reduced MII) standard Ethernet interface, simplifying network connectivity.

This MIPS architecture fully supported by the operating system and other development tools, IDT also provides an optimized Linux operating system with device drivers and applications, these drivers and applications enabled for many of the features of home networking products, including MPEG4, USB (1.1 and 2), ATA and serial ATA (SATA). RC32434 the structure of the block diagram shown in Figure 2.

Flexible combination of PCI and MII/RMII interconnect allows design engineers to build a flexible system, without the need for costly and time-consuming based design schema upgrade conditions, may be implemented according to market needs or omit certain peripheral interface. Integrates high-performance DDR controllers and the CPU running at speeds of JVC BN-VF823 Battery Charger up to 400MHz enables design engineers to design a highly scalable system that can adapt to emerging standards for network and media, can also meet the requirements of improving system performance, or functionality. Provides a detailed design of the following examples.

As shown in Figure 3, the media adapter instances using RC32434 integrated communications processors on-chip Ethernet MAC to connect to the digital home of wired networks, while taking advantage of the high-performance PCI interfacing WLAN devices and media decoder chipsets. High-performance CPU kernel provides the processing power required, it can run the required network protocol (such as TCP/IP, RTSP, and RTP/RTCP, and UPnP) on the side of LAN and WAN network communication, but also for the graphical user interface (GUI) and perform the necessary OS leaving enough processing power. Moreover, using on-chip certification units and protected keys stored on the chip, RC32434 processor and support for industry-standard DRM mechanism.

As with the media adapter similar to the example above, the media server in Figure 4 are leveraging RC32434 processors on-chip Ethernet MAC to connect to a digital home network and connect main peripheral chipset PCI interface. In addition to a WLAN chipset, Media Server includes a multimedia encoder for real-time capture analog data stream and encoding conversion in order to comply with the digital standard (such as MPEG1) digital media streaming; an ATA (SATA) storage chipsets used to connect a standard hard disk drives; a USB2.0 or FireWire controller for connectivity to external storage and media peripherals. As with the earlier examples of media adapter, RC32434 processor is responsible for implementation of the required network protocols, and system management tasks, while increasing software and system functional allowance leave enough CPU processing power.

In the above example of media servers and media adapters design, RC32434 processor supported design engineers build high performance, cost-effective solutions, flexibility and scalability to adapt to and meet the evolving of emerging digital multimedia home network system and market demand.

To say DV shooting when the happiest? Also sharing process after I shoot ", a photography enthusiast who frequently using DV shooting said:" whenever I shoot playback when happiness always spring into life ". But lifting the traditional tape DV, shot after the sharing process is very cumbersome. Go in the later because the burning process is very long when needed, usually need 4, 5 hours, and rewinding to look back and forth is very inconvenient. Happy to share this year, easily share of popular DVD camcorder market, showing its advanced technology of infinite charm. DVD digital camera out into DVD disc, easy sharing and viewing. To introduce several several DVD digital camcorder market for the information of consumers.

"To say DV shooting when the happiest? Also sharing process after I shoot ", a photography enthusiast who frequently using DV shooting said:" whenever I shoot playback when happiness always spring into life ".

But lifting the traditional tape Panasonic Lumix DMC-FZ35 Battery Charger DV, shot after the sharing process is very cumbersome. Go in the later because the burning process is very long when needed, usually need 4, 5 hours, and rewinding to look back and forth is very inconvenient. Happy to share this year, easily share of popular DVD camcorder market, showing its advanced technology of infinite charm. DVD digital camera out into DVD disc, easy sharing and viewing. To introduce several several DVD digital camcorder market for the information of consumers.

Sony DCR-DVD803E

DCR-DVD803E is the world's leading digital video camera Sony Handycam peak of beauty, is the industry's first DVD of 3 million pixels digital camera. With the advent of the end, many media are carrying out various awards activities, DCR-DVD803E with higher value for performance strengths including digital power Magazine Editor's choice awards, the annual award of the world, as well as IT168 Awards, annual award.

Sony DCR-DVD803E

DCR-DVD803E there will undoubtedly improve DVD performance of digital cameras. It uses one-third-inch 3.31 million pixel CCD and mega pixel engine (image processing), image quality is stunning. DCR-DVD803E at the same time equipped with Dolby Digital 5.1-channel creation technology for new research and development, with built-in 4 channel stereo microphone that allows users to capture and playback for home cinema level Peng Pai timbre and enjoy the fun of 5.1-channel home theater, sound pretty realistic. In addition, with complimentary Sony unique Picture image editing software Package, users need only 8 cm DVD disc is inserted into the PC directly, you can copy pictures are wonderful snippets and personal music clip movie, at any time with friends and share valuable images.

Compatible Sony DVD camcorder first double DVD format (DVD-R/-RW/+RW), users can at any time by DVD player playback images, burn a copy from your computer or CD. Use DVD+RW format shot of the movie can also writes DVD player directly play without end. DCR-DVD803E 2.7-inch 16:9 wide screen LCD lets users is to two or 16:9 scene shot is equally convenient. Combined zoom on the LCD, take shortcuts and touch Chinese menu, provides easier manipulation functions, so that users can easily capture wonderful each moment. The LCD also provides high picture quality at up to 123,000 pixels, display 270 degrees of rotation can be made at different angles is provides vivid and detailed images.

At the same time, mixed type liquid crystal display technology under the Sun or bright light renders clear, bright images, outdoor shooting even more convenient. Also, if you use a single double-sided DVD disc, DCR-DVD803E can be stored up to 2.8GB amounts of data or up to 120 minutes movie (LP recording mode for a long time).

It is expected that this camera has a market price of around $ 8,000.

Hitachi DZMV730A

Hitachi launched Hitachi DZMV730A video camera, and continued the consistent style on Hitachi in a DVD camcorder, the machine takes 16 times optical zoom lens, with 240 times digital zoom capability. Compatible with both DVD-R and DVD-Ram are recorded in the format, at the same time, DZMV730A also provides 16:9 2.5-inch LCD widescreen display, and it also uses the MPEG2 video recording technology, users can "improve the quality of produced" and "extended filming time" two options selected.

The machine supports mini dvd-r and DVD-RAM disc recording, when DVD-RAM discs while recording, the camera can use VBR (variable rate) or CBR (constant rate) format for storage. If you use double-sided DVD-RAM discs, cameras can be used in "Extra-Fine, and Fine and the Standard" three mode options: "Extra-Fine" mode (352x480,3Mbps CBR) can record video files of almost 40 minutes; in "Fine" mode (640x480,6Mbps CBR) recorded nearly 60 minutes of video, while in "Standard" mode (352x480 3Mbps CBR) you can record up to 120 minutes of video files. At the same time, double-sided DVD-RAM disc can store 1998 resolution of 640x480 picture.

It is worth mentioning is that DZMV730A has had many improvements in the Technology Department, such as the latest "Hatachi image Engine" technology, the machine running noise reduction near 20%, while battery life is extended by 20%. In size and volume than the previous generation of this machine greatly reduces, the volume is reduced by about 15%. It's biggest problem is that compatibility relatively narrowly escaped.

Panasonic VDR-M95

VDR-M95 uses a miniature DVD-R/RAM of high capacity disk storage, greatly reduced in thickness. It uses a 1/3.6-inch 2.12 million pixel CCD sensor, dynamic pixels to 1.23 million, still image shooting pixels to 1.92 million, can shoot video image 16:9. The M95 is equipped with 10 times optical zoom lens, Aperture F1.8-2.2, focal length conversion by Nikon EN-EL5 Battery Charger the 35mm standard, dynamic shooting is about 48.7-487mm, static shot Yes lens focal length 38.9-389 mm, and mount electronic anti-shake function. Overall dimensions of the machine is about 51x137x90 mm, weight with battery 565g.

In terms of storage, the M95 is SD card storage, you can get the most 1600x1200 high resolution still images; images of images can be stored on the SD card, DVD-R/RAM disk, easy to preview, view, and edited on the computer. Fuselage is equipped with special cable output terminals, s images, stereo, and an external microphone interface and the external connection, and has a USB 2 high speed function. Random forwards as DVD-MovieAlbum SE4.1 and DVD fun STUDIO 2.2 suite, continuous recording time of approximately 125 minutes. VDR-M95 the biggest problem is that the interface is not humane enough, is still in English.

Canon DC10

DC10 has a one-fourth-inch 1.33 million pixels CCD, equipped with a Canon 10 times optical zoom lens, combined with Canon exclusive DIGIC DV processor provides Super excellent dynamic and static records. Movie editing functions in the DC10 also makes it easy. Visual index feature to automatically arrange shows the shot of the movie, play list feature allows you to select movie rearranged the order of the records, divided the scenes immediately split the original clips and delete the original movie. Design of a built-in lens cover and the battery inside, making these two models became million-pixel above the lightest on the market, the smallest and thinnest DVD camcorders.

Canon DC10

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This camera's official price is around $ 8,000

Shape the unique Sony DCR-DVD7E

This is the latest listing DVD digital video camera Sony this year, it has a distinctive shape, flying saucer-like shape change in people's concept of "cylinder + cuboid" traditional impressions, thin and sleek, 360 grams of fuselage and easy to carry, and beautiful fashion, feel much like a mobile digital camera. Its total pixels to 800,000, using a classic Carl Zeiss lens, with 120 times times and 10 times optical zoom digital zoom function. It is worth mentioning is that DCR-DVD7E 2.5-inch hybrid LCD screen is touch, no action can be made within the screen directly, without the manual adjustment of JVC BN-VF733U Battery Charger cumbersome, cordial and humanity design of double shooting pleasure. The machine also double DVD compatible format (DVD-R/+RW/-RW), offers a variety of choices for storage media. Super e-anti-shake system allows you to take a slight jitter in process, the last still images to have a smooth, clear and smooth.

Shape the unique Sony DCR-DVD7E

Brief summary:

This year's DVD digital video camera with powerful advanced scientific and technological strength, and Joy Division, easy share natural advantages, gain unprecedented market recognition and achieved fairly good market performance. According to the latest data, DVD digital video camera has accounted for the overall market share of more than 10%. That shows the DVD market popularity of digital cameras. Hope that by the above introduction, like advanced technology consumers to choose a right for products, recorded live.