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SYSTEMS AND METHODS OF CLUSTERED SHARING OF COMPRESSION HISTORIES

  • US 20080228850A1
  • Filed: 03/12/2007
  • Published: 09/18/2008
  • Est. Priority Date: 03/12/2007
  • Status: Active Grant
First Claim
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1. A method for sharing compression histories among a plurality of devices to improve compression of data transmitted via a plurality of connections, the method comprising:

  • (a) receiving, by a first device from a second device, an index of entries for a compression history shared between the second device and a third device;

    each index entry comprising a location identifier of data stored in the second device;

    (b) receiving, by the first device, a data stream intended for a fourth device;

    (c) identifying, by the first device, that a portion of the data stream matches an entry of the received index;

    (d) transmitting, by the first device to the second device, a location identifier corresponding to the matched entry;

    (e) receiving, by the first device from the second device, a portion of the compression history corresponding to the location identifier;

    (f) determining, by the first device, the portion of the compression history matches a portion of the data stream; and

    (g) transmitting, by the first device to the fourth device, information identifying the portion of the compression history.

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