Method and apparatus for controlling multiple speech engines in an in-vehicle speech recognition system
First Claim
1. A speech recognition system in an automobile having at least one voice activated accessory and a passenger cabin having seats defining a plurality of speaking locations, comprising:
- a plurality of push-to-talk controls mounted within said passenger cabin so as to correspond to said plurality of speaking locations, each of said plurality of push-to-talk controls supplying a location signal when operated;
a plurality of microphones mounted within said passenger cabin so as to correspond to said plurality of speaking locations, each of said plurality of microphones being capable of receiving a spoken utterance from a speaker at said plurality of speaking locations and providing a corresponding audio signal;
a plurality of speech engines, each having different recognition parameters, for recognizing said audio signal as a speech command for controlling said at least one voice activated accessory; and
a selector coupled to said plurality of push-to-talk controls, microphones and speech engines, said selector selecting one of said plurality of speech engines according to said location signal and providing said audio signal to said selected speech engine.
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Abstract
Disclosed herein is a method and apparatus for controlling a speech recognition system on board an automobile. The automobile has one or more voice activated accessories and a passenger cabin with a number of seating locations. The speech recognition system has a plurality of microphones and push-to-talk controls corresponding to the seating locations for inputting speech commands and location identifying signals, respectively. The speech recognition system also includes multiple speech engines recognizing speech commands for operating the voice activated accessories. A selector is coupled to the speech engines and push-to-talk controls for selecting the speech engine best suited for the current speaking location. A speech processor coupled to the speech engine selector is used to recognize the speech commands and transmit the commands to the voice activated accessory.
106 Citations
19 Claims
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1. A speech recognition system in an automobile having at least one voice activated accessory and a passenger cabin having seats defining a plurality of speaking locations, comprising:
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a plurality of push-to-talk controls mounted within said passenger cabin so as to correspond to said plurality of speaking locations, each of said plurality of push-to-talk controls supplying a location signal when operated;
a plurality of microphones mounted within said passenger cabin so as to correspond to said plurality of speaking locations, each of said plurality of microphones being capable of receiving a spoken utterance from a speaker at said plurality of speaking locations and providing a corresponding audio signal;
a plurality of speech engines, each having different recognition parameters, for recognizing said audio signal as a speech command for controlling said at least one voice activated accessory; and
a selector coupled to said plurality of push-to-talk controls, microphones and speech engines, said selector selecting one of said plurality of speech engines according to said location signal and providing said audio signal to said selected speech engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In an automobile having a passenger cabin with a plurality of speaking locations and a speech recognition system with multiple speech engines for controlling at least one voice activated accessory, a method for operating said at least one voice activated accessory via a spoken utterance issue by a speaker at one of said plurality of speaking locations, comprising the steps of:
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receiving a location signal from one of a plurality of push-to-talk controls mounted within said passenger cabin and operated by said speaker at said one of said plurality of speaking locations;
selecting, according to said location signal, one of said multiple speech engines having different recognition parameters and having speech commands for operating said at least one voice activated accessory;
supplying said selected speech processor an audio signal corresponding to said spoken utterance received by one of a plurality of microphones mounted within said passenger cabin and corresponding to said plurality of speaking locations;
processing said spoken utterance to identify a corresponding speech command; and
outputting said corresponding speech command to a control for said at least one voice activated accessory. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification