Controlling the listening horizon of an automatic speech recognition system for use in handsfree conversational dialogue
First Claim
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1. A computer-implemented method comprising:
- performing a cost-benefit analysis to determine whether engaging in a dialog comprises a highest expected utility action;
determining that a user desires to engage in a dialog;
turning on a speech recognition functionality for a listening horizon;
determining a length of the listening horizon;
extending the listening horizon upon detection of a user utterance; and
turning off the speech recognition functionality after the listening horizon has expired.
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Abstract
Conversational dialog with a computer or other processor-based device without requiring push-to-talk functionality. In one embodiment, a computer-implemented method first determines that a user desires to engage in a dialog. Based thereon the method turns on a speech recognition functionality for a period of time referred to as a listening horizon. Upon the listening horizon expiring, the method turns off the speech recognition functionality.
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Citations
22 Claims
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1. A computer-implemented method comprising:
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performing a cost-benefit analysis to determine whether engaging in a dialog comprises a highest expected utility action; determining that a user desires to engage in a dialog; turning on a speech recognition functionality for a listening horizon; determining a length of the listening horizon; extending the listening horizon upon detection of a user utterance; and turning off the speech recognition functionality after the listening horizon has expired. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer-readable medium having stored thereon computer executable instructions for carrying out the following acts:
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performing a cost-benefit analysis to determine whether engaging in a dialog comprises a highest expected utility action; determining that a user desires to engage in a dialog; turning on a speech recognition functionality for a listening horizon for a period of time; and extending the listening horizon upon detection of a user utterance.
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22. A speech detection system comprising:
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means for performing a cost-benefit analysis to determine whether engaging in a dialog comprises a highest expected utility action; means for determining that a user desires to engage in a dialog; means turning on a speech recognition functionality for a listening horizon for a period of time; and means extending the listening horizon upon detection of a user utterance.
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Specification