Invention Grant
US09510089B2 Dynamic location determination for a directionally controllable parametric emitter 有权
定向可控参数发射器的动态位置确定

Dynamic location determination for a directionally controllable parametric emitter
Abstract:
An ultrasonic audio system includes a location sensor includes a location tracking module configured to receive information from the location sensor and to determine a location of a listener in a listening environment; a time delay module configured to receive audio content and to generate a plurality of audio content signals, the generated audio content signals comprising a plurality of individual instances of the audio content signal each instance delayed in time relative to the other instances of the audio content signals; and an ultrasonic emitter comprising a plurality of electrically isolated sections, each section having an input electrically coupled to receive one of the individual instances of the audio content signal, and configured to emit an audio-modulated ultrasonic signal from each of the plurality of electrically isolated sections.
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