What Is 3D HDTV?

The so-called wireless 3D audio and video transmitter is a wireless transmission device that transmits audio and video signals from a signal source (computer and high-definition playback device) to a remote HDTV or high-definition projector.

Wireless 3D transmission

From SD to HD to Full HD, every advancement in technology brings a leap in visual enjoyment. However, while enjoying the visual pleasure brought by high-definition equipment, people have to endure the trouble of connection and wiring. Although the signal transmission line has entered the digital transmission era of sound and picture integration, the "wired" capability is ultimately limited. The short line restricts the space moving ability of high-definition equipment, and the long-line cable pulling not only affects the aesthetics of the home environment, but also lays hidden dangers in the home. When can high-definition signals pass through like the girls in the TV series?

What does a wireless video transmitter do? Today we will not talk about the technology flow, but let me give you a simple example. The Blu-ray machine is in the living room, and I want to lie in the bedroom today and watch the movie through the bedroom hang-up. What should I do now? The solution is 2: 1. Prepare an HDMI cable of more than 5 meters to connect the Blu-ray machine to the bedroom; 2. Move the Blu-ray machine to the bedroom in the living room. We must not only first connect the Blu-ray machine to the living room equipment The direct connections are removed one by one, and the connection with the bedroom machine is tedious, laborious and laborious. But with wireless audio and video transmitters, this process has never been easier and more convenient. Connect the transmitter of the transmitter to the Blu-ray machine, and connect the receiver to the bedroom, hang up, power on, and you're done! Of course, in addition to home entertainment, business presentations, conference offices, education and teaching and other occasions, wireless audio and video transmitters can help you pass through high-definition signals perfectly.

Supporting 1080P 3D signal transmission, and being able to display the true-to-life picture, is a highlight of wireless 3D transmission. Through HDMI1.4 certification, it can perfectly support 1080P 3D images, including left and right shutter 3D, up and down shutter 3D, polarization 3D, color shift 3D, IMAX.

Compared with similar wireless transmitters, the installation of wireless 3D transmission equipment is very convenient. There is no need to install a driver, and the corresponding relationship between the socket and the socket is obvious. Whether it is a laptop or a Blu-ray player, as long as it is properly connected, the connection can be established after power on, which is simple and convenient. Pure hardware design, plug and play, no software installation required. Applicable to all signal source devices (software system devices such as computers and hardware players and other devices).

Using the world's most advanced

Introduced the world's leading high-speed chip PN201, which has attracted the attention of the industry with two characteristics of ultra-low power consumption and ultra-high 1Gbps transmission rate. According to the related technical white paper released by Yudu Communication, PN201 will effectively help low-cost solutions for high-speed business applications in the mobile Internet field, and promote the rapid growth of markets related to wireless high-definition, wireless 3D and wireless interactive games.

With the rapid development of network video sharing technology and technological breakthroughs in HDTV, ultra-large screen HDTVs are entering millions of households, breaking away from the shackles of cables, and easily enjoying 1080P wireless high-definition video is becoming a fashion trend. Among them, wireless 3D high-definition video reflects the latest scientific and technological achievements of wireless transmission technology and 3D video technology.

3D imaging is produced by the visual difference between two eyes. There is usually a distance of about 8 cm between the eyes (pupils) of a person. In order for people to see 3D images, it is necessary to let the left and right eyes see different images, so that there is a certain gap between the two images, which is to simulate the actual situation of human eyes. This is how the stereoscopic 3D feel comes from.

Commercialized 3D projection technologies in cinemas around the world mainly include active stereo and passive stereo. Some companies have also introduced INFITEC, a stereoscopic projection technology that uses RGB color separation technology. No matter what kind of 3D technology, wireless transmission of 3D video requires extremely high data bandwidth to ensure film clarity and smooth playback. The PN201, launched by Yudu Communications, leads the industry with excellent transmission performance at data rates up to 1Gbps. It is also one of the best choices for carrying wireless 3D video.

According to Yudu Communications, the wireless 3D video solution based on the PN201 chip has passed laboratory verification, and video quality and fluency are perfectly reflected. The chip's ultra-high bandwidth guarantees 1080P video quality, and low-latency technology ensures smooth video. Its low-cost commercial solutions will be launched in the near future in China.

With two small and beautiful wireless 3D video transmitters and large flat-screen TVs already in the home, many 3D movie fans can easily build their own home theaters and enjoy a stunning visual feast.

There are also some low-speed wireless transmission solutions on the market to provide wireless video applications. Most of these transmitters are based on WiFi technology. In the product experience, several issues seem to be the technical dead end of WiFi:

First of all, the clarity of the video cannot be guaranteed, especially in the look and feel of the large screen, the graininess is relatively strong, and the picture quality is stiff. According to expert analysis, this is mainly because the effective bandwidth of WiFi is only a few tens of megabytes, which cannot meet the bandwidth requirements of wireless high-definition video. Therefore, the transmitter has to use high compression ratio video compression technology at the transmitting end, resulting in video quality cannot be guaranteed .

Secondly, the motion picture has a strong sense of pause, especially if the home has a broadband WiFi Internet router installed, and the perception is poor. Experts analyze that this is because all WiFi chips use a scheduling mechanism called CSMA technology. In the case of frequency conflict, this mechanism has a relatively large delay. If you need wireless Internet at home, then don't use a wireless video transmitter. The frequency of PN201 is located at 6 ~ 9GHz, which effectively avoids the conflict of frequency points, and adopts TDMA scheduling mechanism to ensure the low-latency technical characteristics.

Thirdly, when used at home, it often leads to slow Internet connection speed and disconnection. Experts analyze that the problem is also caused by the frequency congestion and conflict of the WiFi network. The frequency conflict of WiFi is becoming a huge challenge for WiFi applications. Mobile Internet access, computer Internet access, and many other applications are congested at 2.4GHz and 5.8GHz.

Finally, the radiation is relatively large. All WiFi application radiation is relatively large. In the case of frequency conflict, the product will automatically increase the transmission power to ensure communication quality. This problem has a considerable impact on the health of children and the elderly in the family.

The PN201 uses a noise-like transmission power because of its ultra-high bandwidth guarantee, ensuring a green and environmentally friendly wireless application environment.

It is noticing the huge market demand for wireless video transmission and the inevitable shortcomings of the existing technology. SmartAir focused on this market demand and introduced low-cost, low power, low latency, low radiation and ultra-high-speed PN201 chip, and simultaneously launched a wireless 3D video solution to meet market demand. According to rumors, Yudu has signed a strategic cooperation agreement with Gome, and Gome will release the SmartAir wireless 3D HD transmitter simultaneously online and offline. ^[1]