Patent Document ID: 8676581
Application ID: 12692538

Base Claim:
1. In a computing system comprising a microphone array and an image sensor, a method of operating a speech recognition input system, the method comprising: receiving speech recognition data as an output from a speech recognition stage of an audio processing pipeline, the speech recognition data comprising a recognized speech segment and confidence data comprising a recognition confidence value that represents a confidence in a certainty of a match of the recognized speech segment to a speech pattern; receiving acoustic locational data as an output from a digital audio processing stage of the audio processing pipeline, the acoustic locational data related to a location of origin of the recognized speech segment as determined via signals from the microphone array; receiving image data comprising visual locational information related to a location of each person located in a field of view of the image sensor; comparing the acoustic locational data to the visual locational information to determine whether the recognized speech segment originated from a person in the field of view of the image sensor; and adjusting the confidence data based upon whether the recognized speech segment is determined to have originated from a person in the field of view of the image sensor.

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Claim 7:
7. The method of claim 1 , further comprising receiving a speech input of a keyword before receiving the recognized speech segment, and wherein adjusting the confidence data comprises adjusting the recognition confidence value based upon an amount of time that passed between receiving the speech input of the keyword and receiving the recognized speech segment.