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Voice actuated control system for use in a vehicle

  • US 4,827,520 A
  • Filed: 01/16/1987
  • Issued: 05/02/1989
  • Est. Priority Date: 01/16/1987
  • Status: Expired due to Term
First Claim
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1. A voice actuated control system for controlling a vehicle accessory comprising:

  • means for storing first data defining a plurality of spoken words which are employed to provide selected control functions;

    means for receiving spoken command words and providing second data defining each of the received spoken command words;

    means for comparing said second data with said first data and assigning a digital number representing the closeness of said second data with the closes word representative data of said first data, wherein said comparing and assigning means assigns first and second digital numbers representating the closeness of the second data to first and second word representative data of said first data and representing the first and second closest word matches and wherein said system further includes means coupled to said comparing means for prompting the operator to verify if the spoken command was correctly detected to resolve any ambiguity if the difference between said first and second digital numbers fall within a second predetermined limit thereby indicating a possible ambiguity in the word detected; and

    control means responsive to signals from said comparing means indicting a word match for providing a control output signal associated with a spoken command word when said digital number falls within a predetermined number limit thereby indicating the probability of a correct word match.

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