WHDI technology - wireless high-definition transmission solution in HD projector application - android - Phones Developers

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Taiwan's Zhaohe Electronics Co., Ltd. (ZINWELL) introduced two new wireless audio and video transmission products using Israel's WHDI technology in 2011. With its powerful technology core and megahertz's powerful secondary development capability, it has filled the gap in the wireless high-definition video transmission industry. Its product models are ZWD-1222 and ZWD-2422, using Israeli WHDI technology, the purpose is wireless HD 1080P lossless audio and video transmission, high-definition transmission distance of 15-30 meters, with a certain wall penetration capability, with HD projector is very suitable, It can display high definition, eliminate the need to arrange HDMI cable, and has the ability to penetrate the wall, home decoration, corporate conference room, intelligent control, etc. These two products are leading in the world.
First analyze ZWD-1222 and practical solutions:


Now in home decoration, home audio and video equipment such as computers, set-top boxes, DVDs, Blu-ray players, karaoke systems, notebooks, players, XBOX360 game consoles, PS3, WII game consoles and other appliances certainly make you proud, but cumbersome wiring, frequent The pull-out wire must be a headache for you, and now there is finally a way to solve it. HD Wireless through-wall technology has become a reality today. ZWD-1222 makes users not entangled by cables, easily set up wireless audio and video centers, widely used conference rooms, lecture halls, lecture halls, art stage, home entertainment, KTV entertainment. And other places. ZWD-1222 allows you to achieve zero-interference, long-distance wireless transmission, automatic switching frequency, plug-and-play, uncompressed 1080P high-definition audio and video feast in the enjoyment of home entertainment!

Common programs:
1. Conference room wireless HD solution: Modern enterprise conference rooms are basically equipped with high-definition display devices (high-definition LCD TVs or high-definition projectors, etc.). The playback devices are generally mobile notebooks, which need to be in the conference room during the meeting. The large LCD displays the picture and sound of the notebook in sync. It can be easily completed by ZWD-1222. At the beginning of the conference, you can wirelessly transfer PPT, WORD, HD video and audio, large commercials and other high-definition images to the large-screen LCD TV or HD projector in the conference room. General similar devices cannot transmit full HD audio and video files and commercials, are easily interfered by mobile phones, and need to be driven. This solution is the best solution for modern corporate conference room layout, avoiding wired layout and transmitting full HD signals. The measured working distance is 7-15 meters, which fully meets the needs of general meeting users.

2, multi-task mode program: adults in the living room of the family need to use computers to handle official duties, while children and family want to use computers to watch cartoons or movies; there is only one control computer in the conference room, on the one hand need to use computer to play corporate videos On the other hand, I have to use a computer to process some files. With the multi-tasking mode of ZWD-1222, everything can be done easily. Just switch the projection mode to the extended mode, you can play commercials or movie blockbusters on the large screen LCD of the living room or conference room, but you can work on the computer without affecting each other.

3, wireless Bluetooth mouse and keyboard program: the family's living room installed ZWD-1222, to achieve wireless high-definition transmission, control is controlled by the computer, and sometimes it may not be convenient to use computer control, through this set of wireless mouse and keyboard program, you can Put the computer aside, as long as a wireless mouse or a set of mini wireless button mouse can easily control the large screen LCD, very convenient.

4, Blu-ray disc player / HD player / PS3 multimedia entertainment program: Many families not only have computers, but also Blu-ray disc players, high-definition players and even PS3 and other high-definition playback devices, can achieve high-definition wireless video and audio transmission through ZWD-1222, feel The high-definition HD shock!

Finally, analyze ZWD-2422:

ZWD-2422 is more powerful than ZWD-1222 described above. ZWD-2422 HD measured transmission distance is 10-30 meters, and can connect 2 HD playback devices (computer, notebook, Blu-ray player, HD player, PS3, etc.) at the same time. At the same time, it outputs to 2 HD LCD monitors or HD projectors (the transmitter is connected to 1 HD display device, and the receiver is remotely connected to another HD display device). Many families not only have computers, but also Blu-ray disc players, high-definition players and even high-definition playback devices such as PS3. They can realize high-definition wireless video and audio transmission through ZWD-2422, and feel the high-definition shock of the big screen! ZWD-1222's HD transmission distance is shorter than ZWD-2422, but the transmitter is USB interface power supply is very convenient, 2 products have similar performance, different positioning, the best use environment is different, to meet the needs of different customers!

Common programs:
1, multi-room solution for home users: Many home living rooms and bedrooms have high-definition LCD TVs, and there are at least 2 kinds of high-definition playback devices. You can connect 2 HD playback devices at the same time through ZWD-2422, so that the HDTV of 2 rooms can be synchronized. Play HD video files:

A: The notebook + HD player in the living room is connected to the transmitter of ZWD-2422 at the same time, and the transmitter can connect to the HDTV of the living room locally, as shown in the figure:

B: Connect the ZWD-2422's receiver to another HD TV in the bedroom, so you can enjoy HD or Blu-ray movies simultaneously, and you can switch the playback device (notebook or HD player) through the remote control. :

In this program, if the user returns to the bedroom and only watches the program played by the HD player in the living room wirelessly in the bedroom, there will be a problem that the HD player's remote control cannot remotely control the HD player in the living room in the bedroom because The distance of the infrared remote control, this time you need to use the ZWD-2422 exclusive infrared coupling remote enhancer, the infrared signal of the remote control is coupled to the signal of ZWD-2422, very practical and powerful! Figure:

3, multi-room wireless HD program: The general manager in the manager's conference room meeting, you need to wirelessly transfer the meeting materials in your computer to the large screen LCD of the conference room, and discuss the operation of the company with other managers; The middle-level backbone also needs to participate in the conference. The content of the manager's conference room needs to be transmitted to the large-screen LCD screen of this conference room without delay. It can be solved perfectly by ZWD-2422. The usage scenario is similar to the multi-room scenario for home users.

4: Multi-task mode scheme: Adults in the living room of the family need to use computers to handle official duties, while children and family members want to use computers to watch cartoons or movies; there is only one control computer in the conference room, and on the other hand, it is necessary to use a computer to play corporate videos. On the other hand, I have to use a computer to process some files. With the multi-tasking mode of the ZWD-2422, everything can be done easily. Just switch the projection mode to the extended mode, you can play commercials or movie blockbusters on the large screen LCD of the living room or conference room, but you can work on the computer without affecting each other.

Another room can also display different screens simultaneously

Comparison of similar products:
1, technology core: There are not many products in this industry. Most of the similar products adopt the standard of 802.11N, which is the commonly used wireless standard. Due to the bandwidth limitation, it is compressed transmission, and the picture quality and sound will drop. The two products using Israeli WHDI technology can achieve 3Gb/S bandwidth, and transmit HD video and sound without loss. Even Blu-ray files are no problem.

2, Resolution: The final resolution of products transmitted by ordinary wireless technology is only 720 resolution, while the products using WHDI technology can fully support 1080P & 60HZ images. In addition to transmitting full HD video, WHDI technology can support 7.1. Channel (PCM) audio transmission, sampling rate up to 24bit, 192KHz.

3, anti-jamming: Many wireless devices in daily life use 802.11 standard, so they will interfere with each other, and products adopting WHDI technology adopt 4.6G-5G frequency and have intelligent frequency modulation anti-interference performance, completely undisturbed.

4, delay: ordinary wireless devices because of the compression processing time will be unstable or delayed, and WHDI technology provides enough wireless bandwidth, no need to transfer by compression, eliminating the cost of video compression and decompression process The time, so it can guarantee that the transmitted video will be completely delayed.