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Compression codec transmits HD video wirelessly

Posted: 04 Oct 2007 ?? ?Print Version ?Bookmark and Share

Keywords:wireless HD transmission? compression codec? HD video?

Expanding its Advantiv advanced TV solutions portfolio, Analog Devices Inc. has introduced a video compression codec that promises a rich viewing experience for consumers with high-definition home entertainment systems by enabling the wireless transmission of HD video in real-timewithout any loss in picture qualityover home connections.

A compact and complete solution for compression and decompression of HD video, the codec distributes vivid images in high-volume consumer applications, such as flat-panel TVs, game consoles and next-generation DVD players, without the tangle of cables common to today's hard-wired home entertainment systems.

The ADV216 video codec features ADI's Wavescale compression technology, which is based on the JPEG2000 video compression standard. JPEG2000 is commonly used in high-end professional imaging applications, including digital cinema, broadcast TV production, satellite and medical imaging and security systems. By tailoring its Wavescale compression technology for consumer video applications, ADI has developed a solution that enables high-quality wireless HD signal transmission while eliminating the artifacts and error intolerance of alternative MPEG-based video solutions.

The ADV216 also includes ADI's proprietary spatial ultra-efficient recursive filtering (SURF) wavelet technology, which enables real-time compression and resolution scalability without the need for external memory. In addition to delivering crystal-clear, uninterrupted HD content to TVs and HD companion boxes, the ADV216 supports low latency, which improves consumers' video gaming experience and enables fast remote-control response.

The ADV216 features an API that simplifies system design by allowing compressed data rates to be managed on a frame-by-frame basis, which frees HDTV manufacturers from having to design to worst-case transmission conditions. The codec also adapts to changing conditions, such as wireless data rate changes due to interference or other factors, without interrupting or dropping video frames. The ADV216 supports HDMI and Wireless for HDMI applications.

According to Bill Bucklen, director, advanced television segment, ADI, "The ADV216 enables HD quality video over high-bandwidth wireless standards, including UWB and 802.11n. Moreover, it supports wired HD video transports, including coaxial and powerline cables, which gives manufacturers the ability to use one device for wireless and fixed-wire HD video applications."

The ADV216 Wavescale video compression codec is available in a 13mm x 13mm BGA package and is priced at $17.35 per unit in 1,000-unit quantities.

- Dennis Barker
Digital TV Designline

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