System for processing a video signal via series-connected high speed signal processing smart cards
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United States of America Patent
Stats
-
Mar 7, 2000
Grant Date -
N/A
app pub date -
Jan 30, 1997
filing date -
Aug 4, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system processes a video signal that includes a plurality of signal components representing respective ones of a plurality of video programs such as various pay-TV programs. Each of the signal components is processed, e.g., descrambling a pay-TV program, by one of a plurality of series connected high speed signal processing integrated circuit (IC) cards, or 'smart' cards. An output signal from the last smart card in the series connection includes a plurality of processed signal components. The plurality of processed signal components are processed further to produce a signal suitable for producing a displayed image that includes multiple image portions, such as a picture-in-picture (PIP) or picture-outside-picture (POP) image in a television system. Each portion of the image is produced in response to one of the processed signal components.
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