Streamlined navigational speech recognition
First Claim
Patent Images
1. A method of performing automatic speech recognition (ASR), comprising:
- (a) establishing a point-of-interest (POI) time window for a received spoken request;
(b) establishing an address time window for the received spoken request;
(c) receiving the spoken request at a vehicle microphone;
(d) measuring an amount of time that elapses while the spoken request is received;
(e) determining that the amount of time fails within both the POI time window and the address time window;
(f) performing a keyword search of the received spoken request in response to step (e); and
(g) determining a POI context or an address context based on the keyword search without recognizing a gateway command.
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Abstract
A system and method of performing automatic speech recognition (ASR) includes: receiving speech at a vehicle microphone; communicating the received speech to an ASR system; measuring an amount of time that elapses while speech is received; selecting a point-of-interest (POI) context or an address context based on the measured amount of received time; and processing the received speech using a POI context-based grammar when a POI context is selected or an address-based grammar when an address context is selected.
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Citations
6 Claims
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1. A method of performing automatic speech recognition (ASR), comprising:
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(a) establishing a point-of-interest (POI) time window for a received spoken request; (b) establishing an address time window for the received spoken request; (c) receiving the spoken request at a vehicle microphone; (d) measuring an amount of time that elapses while the spoken request is received; (e) determining that the amount of time fails within both the POI time window and the address time window; (f) performing a keyword search of the received spoken request in response to step (e); and (g) determining a POI context or an address context based on the keyword search without recognizing a gateway command. - View Dependent Claims (2, 3, 4)
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5. A method of performing automatic speech recognition (ASR), comprising:
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(a) establishing an address time window for a received spoken request; (b) receiving the spoken request at a vehicle microphone; (c) communicating the received spoken request to an ASR system; (d) measuring an amount of time that elapses while the spoken request is received; (e) detecting the presence of one or more digit strings in the received spoken request received during the first half of the measured amount of time; (f) determining that at least some of the received spoken request is received during the address time window; and (g) processing the received spoken request using an address-based grammar in response to step (e) and step (f) without recognizing a gateway command. - View Dependent Claims (6)
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Specification