Speech communications system for a vehicle and method of operating a speech communications system for a vehicle
First Claim
1. In combination with a vehicle having a vehicle interior, a speech communications system comprising:
- a microphone system provided in the vehicle interior, said microphone system being configured to detect audio information;
a speech recognizer operatively connected to said microphone system;
an interaction manager operatively connected to said speech recognizer, said interaction manager providing grammar information to said speech recognizer, said speech recognizer being configured to provide speech recognition results to said interaction manager;
an acoustic echo canceller operatively connected to said speech recognizer, said acoustic echo canceller being configured to at least partially eliminate portions of the audio information detected by said microphone system; and
a sound localizer operatively connected to said microphone system and to said interaction manager, said sound localizer being configured to determine a sound source location in the vehicle interior.
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Accused Products
Abstract
A speech communications system for a vehicle includes a microphone system provided in the vehicle interior in order to detect audio information. An interaction manager provides grammar information to a speech recognizer. The speech recognizer provides speech recognition results to the interaction manager. An acoustic echo canceller eliminates portions of the audio information detected by the microphone system. A sound localizer determines a sound source location in the vehicle interior. A method of operating a speech communications system in a vehicle is also provided. An interruptible text-to-speech operation provides a speech output to a user. Voice information is requested from the user for a maximum number of times if insufficient voice information or no voice information is provided in response to the speech output provided by the interruptible text-to-speech operation. The dialog context of an unfinished speech interaction is saved.
90 Citations
18 Claims
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1. In combination with a vehicle having a vehicle interior, a speech communications system comprising:
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a microphone system provided in the vehicle interior, said microphone system being configured to detect audio information; a speech recognizer operatively connected to said microphone system; an interaction manager operatively connected to said speech recognizer, said interaction manager providing grammar information to said speech recognizer, said speech recognizer being configured to provide speech recognition results to said interaction manager; an acoustic echo canceller operatively connected to said speech recognizer, said acoustic echo canceller being configured to at least partially eliminate portions of the audio information detected by said microphone system; and a sound localizer operatively connected to said microphone system and to said interaction manager, said sound localizer being configured to determine a sound source location in the vehicle interior. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a speech communications system in a vehicle, the method which comprises:
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detecting audio information with a microphone system provided in a vehicle interior; running an interruptible text-to-speech operation based on a dialog context in order to provide a speech output; running a speech recognition operation for providing a speech recognition result; requesting voice information for a maximum number of times if insufficient voice information or no voice information is provided in response to the speech output provided by the interruptible text-to-speech operation; and saving a dialog context of an unfinished speech interaction. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification