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Method of implicit confirmation for automatic speech recognition

  • US 5,930,751 A
  • Filed: 05/30/1997
  • Issued: 07/27/1999
  • Est. Priority Date: 05/30/1997
  • Status: Expired due to Term
First Claim
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1. A method of determining, in an automated speech recognition apparatus for identifying in user speech using a speech recognition technique and for executing, as a data processing instruction, a user-issued verbal command using a user-selected one of a plurality of associated command operators defining a command operators set and stored in a memory, whether to execute the verbal command which has been identified by the recognition apparatus in the user speech, comprising the steps of:

  • (A) identifying, in the speech recognition apparatus, a verbal command in user speech as a user-issued verbal command to the speech recognition apparatus;

    (B) upon said identifying of the verbal command, starting a timer defining a predetermined time-out period and issuing, substantially concurrent with said starting of the timer, a user-perceptible indication that the speech recognition apparatus is awaiting receipt of a user-issued command operator associated with the identified verbal command;

    (C) retrieving from the memory the command operators set associated with the identified verbal command;

    (D) monitoring, in the speech recognition apparatus during the time-out period of the timer, user speech to identify in the user speech one of the command operators of the retrieved command operator set in the user speech during the time-out period, and(i) where one of the associated command operators is identified by the speech recognition apparatus in the user speech during the time-out period of the timer, executing as a data processing instruction the identified user-issued verbal command using the one of the associated command operators identified in the speech recognition apparatus, and(ii) where none of the plural command operators in the retrieved command operators set is identified by the speech recognition apparatus in the user speech during the time-out period, resetting the speech recognition apparatus at the end of the time-out period to await receipt and identification by the speech recognition apparatus of a subsequent user-issued verbal command.

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