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Video compression/expansion system

  • US 4,654,484 A
  • Filed: 07/21/1983
  • Issued: 03/31/1987
  • Est. Priority Date: 07/21/1983
  • Status: Expired due to Term
First Claim
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1. A system for the transmission of broad band information over a narrow band transmission medium comprising a sending station and a receiving station, wherein each of the sending and receiving stations comprises means for compressing broad band information in a low resolution phase of at least one cycle;

  • means for generating error codes for the compressed broad band information in a high resolution phase;

    means for transmitting the compressed broad band information and the error codes over the narrow band transmission medium;

    means for receiving compressed broad band information and error codes from the narrow band transmission medium;

    means for expanding the received compressed broad band information;

    means for updating the compressed and subsequently expanded broad band information in response to the received error codes; and

    means for display the compressed and subsequently expanded broad band information and the updated broad band information.

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