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Apparatus, systems and methods for providing multiple video data streams from a single source

  • US 5,455,626 A
  • Filed: 11/15/1993
  • Issued: 10/03/1995
  • Est. Priority Date: 11/15/1993
  • Status: Expired due to Term
First Claim
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1. A method for generating an output composite video data stream comprising the steps of:

  • during a first phase of a set of processing phases;

    receiving a frame of first vide data;

    downscaling the frame of first video data to produce a first block of data;

    storing the first block in a first memory space;

    retrieving the first block of data from the first memory space;

    upscaling the first block to produce an upscaled first block; and

    outputting the upscaled first block as a first field of the composite video stream; and

    during a second phase of the set of processing phases;

    receiving a frame of second video data;

    downscaling the frame of second video data to produce a second storage block of data;

    storing the second block in a second memory space;

    retrieving the second block from the second memory space;

    upscaling the second block to produce on upscaled second block; and

    outputting the upscaled second block as a second field of the composite video stream.

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