Method and device for decoding digital video bitstreams and reception equipment including such a device

  • US 6,175,595 B1
  • Filed: 07/18/1996
  • Issued: 01/16/2001
  • Est. Priority Date: 07/19/1995
  • Status: Expired due to Term
First Claim
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1. A method of decoding a bitstream which includes a plurality of multiplexed coded bitstreams corresponding to previously coded signals, said method comprising the steps of:

  • receiving n (n≦

    2) coded bitstreams in a single multiplexed bitstream originating from a transmitting means and/or, a storage means, and demultiplexing to obtain the n individual coded bitstreams;

    storing only one intra-picture frame of each of the n coded bitstreams in n respective memory buffers which intra picture frame has been coded without reference to other frames in the coded bitstreams;

    selecting, for display, a single coded bitstream from one of the n memory buffers; and

    decoding the selected coded bitstream with a single decoder, using the intra-picture frame stored in the one of the n memory buffers corresponding to the selected coded bitstream.

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