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Animated "on-screen" display provisions for an MPEG video signal processing system

  • US 5,969,770 A
  • Filed: 11/21/1997
  • Issued: 10/19/1999
  • Est. Priority Date: 05/24/1995
  • Status: Expired due to Term
First Claim
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1. A system for processing a received stream of packets representing television video and audio information which has been compressed and digitally encoded, each of said packets including payload data representing a particular type of information and a header which identifies the particular type of information represented by the payload data, comprising:

  • means for decompressing payload data representing television video information to produce digital signals representing decompressed video information;

    means for decompressing payload data representing television audio information to produce digital signals representing decompressed audio information;

    means for routing payload data of said packets of said stream of packets to ones of said decompressing means according to the respective headers contained in said packets;

    means for storing data representing on-screen display graphics information which has been compressed in the same manner as the received television video information; and

    means for selectively coupling said data representing on-screen display graphics information which has been compressed from said storing means to said routing means so that said data representing said on-screen display graphics information which has been compressed is thereafter routed by said routing means to said video decompressing means where it is decompressed to form digital signals representing on-screen display graphics information derived from said compressed on-screen display graphics data.

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