System and technique for reducing power consumed by a data transfer operations during periods of update inactivity

CAFC
  • US 5,961,617 A
  • Filed: 08/18/1997
  • Issued: 10/05/1999
  • Est. Priority Date: 08/18/1997
  • Status: Expired due to Term
First Claim
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1. A data interface system, comprising:

  • a processing unit configured to receive input data from a memory and generate from the received input data corresponding output data;

    an uncompressed version of the input data, which is stored in the memory; and

    a compressed version of the input data, which is stored in the memory;

    such that;

    the processing unit is configured, when the input data has not been recently updated, to generate the compressed version from the uncompressed version and to generate the output data from the compressed version; and

    the processing unit is configured, when the input data has been recently updated, to use at least a subset of the uncompressed version to generate the output data.

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