Data insertion apparatus and methods for use with compressed audio/video data
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United States of America Patent
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Dec 14, 2010
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app pub date -
Sep 26, 2006
filing date -
Apr 7, 2004
priority date (Note) -
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Abstract
Methods, apparatus, and articles of manufacture for performing data insertion in compressed audio/video data streams are disclosed. A disclosed method receives a digital data stream containing a plurality of compressed media streams associated with a plurality of different media programs and generates information to be inserted in at least one of the compressed media streams. The disclosed method identifies frames of compressed data associated with the at least one of the compressed media streams and inserts the information in at least some of the identified frames of compressed data without performing a decompression operation on the compressed data and by changing locations or values of data bits within the at least some of the identified frames.
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