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Automatic software updating method

  • US 5,909,581 A
  • Filed: 12/30/1996
  • Issued: 06/01/1999
  • Est. Priority Date: 12/30/1995
  • Status: Expired due to Term
First Claim
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1. A method for upgrading out-of-date software in a communication network including a central system and a plurality of branch processing computer systems each connected to said central system for serving as a server, and a different plurality of computer systems each plurality connected to each branch processing computer system, said method comprising the steps of:

  • installing new software together with a version-up table containing a version code indicating the version of the software, said central system;

    establishing communication links between said central system and said plurality of branch processing computer systems, and downloading the new software from said central system to each of the branch processing computer systems;

    determining whether to download the new software using the version code contained in said version-up table downloaded in each of the branch processing computer systems, when said one of said plurality of computer systems makes a software update request;

    downloading the new software to said one of said plurality of computer systems, when the version code contained in the version-up table installed in the central system indicates a different version from the one previously installed in said one of said plurality of computer systems; and

    installing the new software in said one of said plurality of computer systems after the new software is downloaded to said one of said plurality of computer systems.

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