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Method and apparatus for processing compressed video data streams

  • US 6,370,199 B1
  • Filed: 04/05/1999
  • Issued: 04/09/2002
  • Est. Priority Date: 04/03/1998
  • Status: Expired due to Term
First Claim
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1. A method of processing a compressed digital bit-stream including a sequence of temporally referenced frames, at least some of which are coded in dependence on information in preceding or succeeding frames, to allow the bit-stream to be inserted into another such digital bit-stream, the method comprising the steps of:

  • identifying the presence of one or more frames at a given insertion point which are coded in dependence upon one or more frames beyond the insertion point; and

    modifying the sequence so as to remove any such dependency and maintain continuity of the temporal references.

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