Parametric emitter system with noise cancelation
AssigneeTurtle Beach Corporation
InventorsBrian Alan Kappus, Elwood Grant Norris
Life of this patent
Estimating the term…
Abstract
An ultrasonic noise cancelation system can include a communication module configured to receive a noise signal detected by a noise detection module, the noise signal representing a noise sound in a listener environment; a noise cancelation module configured to invert the received noise signal thereby creating an inverse noise signal representing an inverse of the noise sound; and a modulator configured to modulate the inverse noise signal onto an ultrasonic carrier to generate an ultrasonic signal.
Claims28
An ultrasonic audio system for canceling a noise sound from a listening environment, comprising:
- an audio processing system, comprising:
- a communication module configured to receive a noise signal detected by a noise detection module, the noise signal representing the noise sound in a listener environment;
- a noise cancelation module configured to invert the received noise signal thereby creating an inverse noise signal representing an inverse of the noise sound;
- and
- a modulator configured to modulate the inverse noise signal onto an ultrasonic carrier to generate an ultrasonic signal;
- and
- an ultrasonic emitter coupled to receive the ultrasonic signal and to launch an ultrasonic pressure wave representing the ultrasonic signal into a transmission medium in the listening environment, wherein upon transmission in the transmission medium, the ultrasonic signal demodulates, thereby producing an inverse of the noise sound in the listening environment.
A method for canceling a noise sound from a listening environment utilizing ultrasonic, the method, comprising:
- an audio processing system receiving a noise signal detected by a noise detection module, the noise signal representing the noise sound in a listening environment;
- the audio processing system inverting the received noise signal thereby creating an inverse noise signal representing an inverse of the noise sound;
- and
- the audio processing system modulating the inverse noise signal onto an ultrasonic carrier to generate an ultrasonic signal;
- and
- an ultrasonic emitter receiving the ultrasonic signal and launching an ultrasonic pressure wave representing the ultrasonic signal into a transmission medium in the listening environment, wherein upon transmission in the transmission medium, the ultrasonic signal demodulates, thereby producing an inverse of the noise sound in the listening environment.
An ultrasonic audio system for canceling a noise sound from a listening environment, comprising a non-transitory storage medium coupled to a processing module and comprising program instructions stored thereon, which, when executed by the processing module cause the ultrasonic audio system to perform the operations of:
- receiving a noise signal detected by a noise detection module, the noise signal representing the noise sound in a listening environment;
- the audio processing system inverting the received noise signal thereby creating an inverse noise signal representing an inverse of the noise sound;
- and
- modulating the inverse noise signal onto an ultrasonic carrier to generate an ultrasonic signal;
- and
- receiving the ultrasonic signal and launching an ultrasonic pressure wave representing the ultrasonic signal into a transmission medium in the listening environment, wherein upon transmission in the transmission medium, the ultrasonic signal demodulates, thereby producing an inverse of the noise sound in the listening environment.
Dependencies are inferred from the claim text.