Audio system and method of operation therefor

摘要

An audio system that includes an ultrasound sensor array which has a plurality of ultrasound sensor elements, and an audio band array which has a plurality of audio band elements. An estimator is configured to generate a presence characteristic of a user in response to ultrasound signals received from the ultrasound sensor array. The presence characteristic may include a position estimate for the user. An audio array circuit is configured to generate a directional response for the audio band array by applying weights to individual audio band signals for the audio band elements. A weight circuit is configured to determine the weights in response to the presence characteristic.

主权项

1. An audio system comprising:
an ultrasound transmitter configured to transmit an ultrasound test signal; an ultrasound sensor array comprising a plurality of ultrasound sensor elements; an estimator configured to estimate a presence characteristic of a user in response to a comparison between a characteristic of the ultrasound test signal and a characteristic of ultrasound signals received from the ultrasound sensor array, the ultrasound signals being reflected signals of the ultrasound test signal; an audio band array comprising audio band elements; an audio array circuit configured to generate a directional response of the audio band array by applying weights to individual audio band signals of the audio band elements; and a weight circuit configured to determine the weights in response to the presence characteristic.