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Application server and streaming server streaming multimedia file in a client specified format

  • US 7,516,235 B2
  • Filed: 02/27/2007
  • Issued: 04/07/2009
  • Est. Priority Date: 12/15/2000
  • Status: Expired due to Fees
First Claim
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1. A method for transferring multimedia data using a data communication system, comprising the steps of:

  • storing on an application server a multimedia file including a plurality groups of multimedia data, each group having a predetermined data size;

    receiving a client request and reading a client address at the application server, the client address corresponding to at least one client apparatus;

    stripping consecutive groups from the multimedia file and buffering the consecutive groups in a staging buffer;

    transferring to a streaming server, the consecutive groups from the staging buffer and the client address;

    converting at the streaming server, each of the consecutive groups received from the staging buffer into a format readable by the at least one client apparatus;

    sending each of the consecutive groups to the at least one client apparatus; and

    selectively storing the multimedia file on at least one of the application server and the streaming server based on a number of client requests received for the multimedia file;

    the step of selectively storing the multimedia file comprises the steps of;

    determining, in the streaming server according to a garbage-collection algorithm, a rate of sending of the multimedia file from the streaming server to the at least one client apparatus;

    comparing the rate of sending to a threshold number; and

    keeping the multimedia file stored on the streaming server when the rate of sending is greater than the threshold number.

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