Picture transmission unit and picture transmission system
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United States of America Patent
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May 9, 2006
Grant Date -
Mar 6, 2003
app pub date -
Jul 1, 2002
filing date -
Sep 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The picture transmission system is used in a monitoring system etc., and which transmits picture information obtained through video camera unit and sound information from a microphone, speaker or such via networks. The picture transmission system is composed of a video camera unit selected to meet the intended purpose in combination with a common picture transmission unit, which compresses the output signal from the video camera unit according to a prescribed coding format and transmits it to network etc. according to a prescribed protocol at a prescribed transmission rate. The compression/coding means and the transmission/coding means provided within the picture transmission unit each has a rewritable nonvolatile memory for storing programs with procedures corresponding to the coding format and the communication protocol respectively, a digital signal processor which executes signal processing according to the program stored in the memory, and a field programmable logic array which executes logical operation according to set logic conditions. For this reason, prescribed functions can be set without altering hardware by changing the program and the logic conditions.
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