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Monitoring of periodic patterns

  • US 5,768,284 A
  • Filed: 12/29/1995
  • Issued: 06/16/1998
  • Est. Priority Date: 12/29/1995
  • Status: Expired due to Term
First Claim
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1. A method for detecting recording errors in a telephone network that provides services to a plurality of customers, said method comprising:

  • recording information output by said telephone network relating to the provision of a service to said customers, said information having a periodic pattern;

    identifying disturbances in said periodic pattern that persist for longer than a predetermined period based on current knowledge of said information and on knowledge of a history of said information derived over a plurality of periods; and

    generating an alarm when said identified disturbances exceed a threshold.

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