WirelessHD is an initiative by several leading technology and consumer electronics companies to organize an industry-led standardization effort to define a next-generation wireless digital interface specification for consumer electronics and PC products. Specifically, WirelessHD will emerge as a new, industry-led special interest group with the stated goal of enabling wireless connectivity for streaming HD content between source devices and high-definition displays.
WirelessHD (WiHD) will be a formal special interest group that will be comprised of consumer electronics and other technology companies, including those that have historically been responsible for the formation of the world’s leading display standards. WirelessHD will promote and enable the rapid adoption, standardization and multi-vendor interoperability of WirelessHD technology worldwide.
WirelessHD will serve as the first and only wireless digital interface to combine uncompressed high-definition video, multi-channel audio, intelligent format and control data, and Hollywood approved content protection. For end-users, elimination of cables for audio and video dramatically simplifies home theater system installation and eliminates the traditional need to locate source devices in the proximity of the display. Also, the technology will support the development of adapter solutions that will be capable of supporting legacy systems.
The WirelessHD specification has been architected and optimized for wireless display connectivity, achieving in its first generation implementation high-speed rates from 2 Gbps to 5 Gbps for the CE, PC, and portable device segments. Its core technology promotes theoretical data rates as high as 20 Gbps, permitting it to scale to higher resolutions, color depth, and range. Coexisting with other wireless services, the WirelessHD platform is designed to operate cooperatively with existing, wireline display technologies.
Recent availability of several new technologies make it possible to achieve the multi-gigabit data rates required for uncompressed video streaming. Such breakthroughs enable low cost, better image quality, and higher performance wireless A/V systems. The key characteristics and focal technologies include:
• High interoperability supported by major CE device manufacturers
• Uncompressed HD video, audio and data transmission, scalable to future high-definition A/V formats
• High-speed wireless, multi-gigabit technology in the unlicensed 60 GHz band
• Smart antenna technology to overcome line-of-sight constraints of 60 GHz
• Secure communications
• Device control for simple operation of consumer electronics products
• Error protection, framing and timing control techniques for a quality consumer experience