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Voice recognition system using voice power patterns

  • US 4,827,519 A
  • Filed: 09/17/1986
  • Issued: 05/02/1989
  • Est. Priority Date: 09/19/1985
  • Status: Expired due to Fees
First Claim
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1. A method for forming a binary voice power pattern, comprising the steps of:

  • converting a voice in the form of pressure waves into an electrical voice signal;

    processing said electrical voice signal to define an analog voice power signal whose voice power is equal to or above a predetermined voice power level;

    sampling said analog voice power signal at a predetermined time interval to determine a current amplitude thereof; and

    comparing the thus determined current amplitude with a predetermined number of voice power levels, thereby assigning a first binary data to at least one of the predetermined number of voice power levels which corresponding to said amplitude and assigning a second binary data, which is different from said first binary data, to the remaining of the predetermined number of voice power levels to form said binary voice power pattern.

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