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Voice recognition system

  • US 4,833,713 A
  • Filed: 09/04/1986
  • Issued: 05/23/1989
  • Est. Priority Date: 09/06/1985
  • Status: Expired due to Term
First Claim
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1. A system for registering a voice pattern by superposing two or more voice patterns for the same sound a multiple of times, comprising:

  • converting means for converting a sound into an electrical voice signal;

    processing means for processing said electrical voice signal in a predetermined manner to produce a voice pattern in the form a time-frequency distribution;

    detecting means for detecting a section from the beginning of said voice pattern where voice energy of said sound is equal to or less than a first predetermined value and partial voice energy of a low frequency component of said sound is equal to or larger than a second predetermined value; and

    superposing means for superposing said voice pattern onto a previously created voice pattern for the same sound after completion of said section to form a combined voice pattern.

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