发明授权
US07899114B2 System and method for maximizing video RF wireless transmission performance
有权
视频RF无线传输性能最大化的系统和方法
- 专利标题: System and method for maximizing video RF wireless transmission performance
- 专利标题(中): 视频RF无线传输性能最大化的系统和方法
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申请号: US11285591申请日: 2005-11-21
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公开(公告)号: US07899114B2公开(公告)日: 2011-03-01
- 发明人: Andrew Kostrzewski , Tomasz Jannson
- 申请人: Andrew Kostrzewski , Tomasz Jannson
- 申请人地址: US CA Torrance
- 专利权人: Physical Optics Corporation
- 当前专利权人: Physical Optics Corporation
- 当前专利权人地址: US CA Torrance
- 代理机构: Sheppard Mullin Richter & Hampton LLP
- 主分类号: H04N5/262
- IPC分类号: H04N5/262
摘要:
A system and method that will improve QoS (Quality of Service) of wireless video transmission systems. This is done by “in-fly” monitoring of BER by periodically transmitting “test images”, which images are known to the RF-receiver (Rx). BER can be automatically computed, within a related BIT (Built-in-Test) procedure that is also the subject of this invention. This allows predictions of a proper increasing, or decreasing of bandwidth OVH-level, in order to compensate for a BER-change. BER computation is facilitated by distinguishing video frames based on whether they depict new spatial events or related temporal events. Another subject of this invention is a motion-based pre-ATR method that is an introduction to common ATR, or pattern recognition methods. Yet another subject of this invention is a process of implanting error correcting bits into a payload, in the form of imperceptible watermarks. Still other aspects hereof, relate to such networks as: MAN, WAN, Tactical Internet, and others, to provide extra protection of headers, by implanting them into payloads, with a high level of Bit-Selective-Error Correction. Also included herein is a novel compression concept for still images which applies the spatial or meaningful frame technique to still imagery in a wavelet compression format.
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