×

Method of and apparatus for rapid retrieval of data in a content distribution network

  • US 6,826,626 B1
  • Filed: 07/21/2000
  • Issued: 11/30/2004
  • Est. Priority Date: 07/21/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of retrieving data over a content distribution network, said method comprising:

  • a step, performed by a client, of sending a request for data for a resource, a step, performed by a server responsively connected to said client, of receiving said request for data sent by said client;

    a step, performed by said server, of identifying a reference for an identity response to said request;

    a step, performed by said server, of comparing said reference with said identity response to said request for data to generate a delta encoded response based on differences between said identity response and said reference;

    a step, performed by said server, of sending said delta encoded response and an identification of said reference to said client;

    a step, performed by said client, of reconstituting said identity response using said delta encoded response and a locally stored copy of said reference if said client has previously stored a copy of said reference, otherwise retrieving a copy of said reference and then reconstituting said identity response using said delta encoded response and the retrieved copy of said reference; and

    a step, performed by said server, of tracking use of said reference and replacing said reference when more than a predetermined number of delta encoded responses generated using said reference fall more than a predetermined number of standard deviations from a mean of a distribution of delta encoded responses generated using said reference.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×