Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-03-01
2011-03-01
Ishrat, Sherali (Department: 2624)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240270
Reexamination Certificate
active
07899114
ABSTRACT:
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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Jannson Tomasz
Kostrzewski Andrew
Ishrat Sherali
Physical Optics Corporation
Sheppard Mullin Richter & Hampton LLP
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