System and method for capturing and transferring selected portions of a video stream in a computer system
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United States of America Patent
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-
Sep 8, 1998
Grant Date -
N/A
app pub date -
Oct 2, 1995
filing date -
Oct 2, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
Aspects of the present invention provide a system for selectively processing a video signal in accordance with instructions from application software. The system contains a video decoder for converting an analog video signal to digital video data, and a controller for formatting and routing the digital video data. A list of control structures may be loaded into a memory associated with the controller. The control structures contain formatting and routing information used by the controller to process different portions of the video stream. The number and content of control structures as well as the correlation between the control structures and selected portions of the video stream may be flexibly determined by application software. In particular, the control structures may be configured such that certain portions of the video stream are routed to the CPU for processing, while other portions are routed to a display driver and output on a display device.
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