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Methods, apparatus, and systems for managing the insertion of overlay content into a video signal

  • US 8,087,044 B2
  • Filed: 07/25/2007
  • Issued: 12/27/2011
  • Est. Priority Date: 09/18/2006
  • Status: Active Grant
First Claim
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1. A method for inserting overlay content into a video signal to provide a modified packetized bit stream containing both video and overlay content for subsequent transmission to a receiver, comprising:

  • receiving a compressed bit stream carrying a video signal from a video source;

    providing overlay content in one or more overlay content signals; and

    inserting overlay content selected from one of said one or more overlay content signals into an insertion window of said video signal, without decoding the compressed bit stream, to produce said modified packetized bit stream, said overlay content being carried in a payload portion of said modified packetized bit stream together with video content from said video signal;

    wherein the modified packetized bit stream is a single program bit stream containing both the video and overlay content for transmission to and decoding at the receiver.

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