System for acquiring, processing, and storing video data and program guides transmitted in different coding formats
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United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
Mar 18, 1997
filing date -
Aug 1, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A receiver system automatically adaptively tunes to broadcast signals that are variable in the number of channels that are transmitted, their signal coding type and their modulation format. A system receives a digital bitstream representing video information encoded in one of a plurality of different formats, and transmitted on one of a plurality of transmission channels. In the system, a method for acquiring data transmitted on a transmission channel involves selecting a transmission channel from the plurality of channels and selecting a modulation format. The method also involves tuning to receive the modulation format and determining whether valid data is being received on the selected transmission channel. The method steps are repeated until valid data is received. The method may also involve selecting a coding type, and tuning to receive the coding type. In addition, the method of acquiring data may involve capturing program guide information and re-tuning to receive a transmission channel in response to the program guide information.
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