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Saving bandwidth in transmission of compressed data

  • US 9,356,645 B2
  • Filed: 11/16/2012
  • Issued: 05/31/2016
  • Est. Priority Date: 11/16/2012
  • Status: Expired due to Fees
First Claim
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1. A method of transmitting content across a link in a communications network, the method comprising:

  • examining specified traffic in the network at a sender end of the link to determine if the traffic is carrying any compressed content;

    when the specified traffic is carrying compressed content, decompressing at least one portion of the compressed content to obtain decompressed content;

    comparing the decompressed content from the specified traffic with content of a sender cache to determine if the sender cache has content matching the decompressed content from the specified traffic;

    when the sender cache has content matching the decompressed content from the specified traffic, determining an identifier associated with said decompressed content from the specific traffic; and

    using the associated identifier to reconstruct, at a receiving end of the link, the decompressed content from the specified traffic; and

    wherein the using the associated identifier to reconstruct the decompressed content includes;

    determining an index for identifying said decompressed content;

    compressing said index to form the associated identifier;

    replacing the decompressed content from the specified traffic with the associated identifier;

    sending the associated identifier over the link to the receiving end of the link; and

    decompressing the associated identifier, at the receiving end of the link, to reconstruct the index for identifying the decompressed content from the specified traffic.

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