Wireless HD

Wireless HD definition - computer

See WirelessHD.



WirelessHD definition - computer

(WIRELESS High Definition) An in-room wireless technology from the WirelessHD consortium for transmitting uncompressed and lossless high-definition video and other media over short distances between TVs, PCs and handheld devices in the unlicensed 60 GHz frequency range. WirelessHD was initially targeted for audio/video (A/V) with data applications (laptops, printers, etc.) to follow.

WirelessHD (WiHD) founders include SiBEAM, LG, NEC, Panasonic, Sony, Toshiba and Samsung. At 60 GHz, transmission is highly directional; however, in 2007, SiBEAM demonstrated its OmniLink60 CMOS chips which intelligently steer the signal to take advantage of surface areas such as walls and objects in the room using an array of up to 36 antennas on a 1" square surface. WirelessHD radios transmit up to 4 Gbps at 10 meters, with up to 25 Gbps expected in the future. See WiGig and ISM band.


_WIHD.GIF


Automatic Redirection

As soon as an obstacle such as a person interrupts a WirelessHD signal, it uses another route to reach the TV; in this example by bouncing off the back wall. Using beamforming techniques, the transmitter is constantly scanning for alternate pathways to the receiver in order to be capable of immediately switching to a different one when necessary (see beamforming). (Image courtesy of WirelessHD, LLC, www.wirelesshd.com)






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