WHDI is a wireless technology that allows high-definition video signals to be sent to multiple displays throughout the home without the need for cables. It has been developed by a partnership between Sony, AMIMON, Hitachi, Motorola, Samsung, and Sharp. However, it has yet to generate a substantial market presence due to the difficulty of outputting high-resolution video without losing quality. When it does become available in mainstream consumer products, it is estimated to cost around US$800 more than comparable models without wireless technology.
WHDI stands for Wireless Home Digital Interface. Just as WiFi networks allow you to connect computers and other electronics together, WHDI does essentially the same thing, but with high-definition video signals. It allows a high definition wireless signal to be sent to many different displays located throughout the home.
WHDI has a number of benefits. For example, those looking to hang a flat screen TV on a wall would need to route cables behind the wall to keep them hidden and make it aesthetically pleasing. Doing so often requires a lot of hard work behind walls. Many may not have the time or skills to do such work.
With WHDI, you won’t need to run cables, as your TV will be able to receive a wireless signal from a router or modem. These signals will have an effective range, it is thought, similar to what WiFi does at about 150 feet (50 meters), almost always allowing for television or any type of monitor capable of displaying video. Thus, there is no need to run cables throughout the house as is commonly done to receive cable signals in different parts of the house.
Some of the most recognizable names in the consumer electronics industry are involved in the development of WHDI. In the summer of 2008, a partnership was announced between Sony, AMIMON, Hitachi, Motorola, Samsung and Sharp to further aid WHDI research. These companies believe that WHDI will provide an additional edge over the traditional technologies currently in use.
While considerable interest has been created in WHDI, it has yet to generate a substantial market presence. The main reason for this is that the technology has not developed to the point where it is available in many mainstream consumer products. When it does, the feature is estimated to cost US$800 more than comparable models without wireless technology.
The biggest problem with WHDI technology is figuring out how to output high-resolution video without losing quality. Transmitting video at 720p or 1080p resolutions can be very difficult, especially in an uncompressed format such as that required by WHDI. Broadcasting can cause loss of color, sharpness, or both. While the technology is there to compensate for these things, as evidenced by the fact that high-definition images are currently transmitted over the air, delivering them at a mass-market acceptable price point is more difficult.
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