Invention Grant
- Patent Title: Active noise control simulated noise audio output for active noise control testing
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Application No.: US16136380Application Date: 2018-09-20
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Publication No.: US10380990B2Publication Date: 2019-08-13
- Inventor: Benjamin David Sweet , Richard Lawrence Cooper
- Applicant: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
- Applicant Address: US GA Peachtree City
- Assignee: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
- Current Assignee: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
- Current Assignee Address: US GA Peachtree City
- Agent Laurence S. Roach, Esq.
- Main IPC: G10K11/178
- IPC: G10K11/178

Abstract:
A vehicle includes an engine and/or powertrain producing noise that is audible in a passenger compartment of the vehicle when the engine and/or powertrain is running. An active noise control arrangement includes a first loudspeaker disposed within a passenger compartment of the vehicle. A digital signal processor receives audio data and transmits an audio signal to the first loudspeaker dependent upon the audio data. A microphone is disposed within the passenger compartment and converts the sound from the first loudspeaker and the noise within the passenger compartment into a microphone signal. The microphone signal is transmitted to the digital signal processor, and the digital signal processor modifies the audio signal such that the audio signal attenuates the noise in the passenger compartment. A vehicle processor transmits a simulated noise signal to a second loudspeaker for use in testing effectiveness of the active noise control arrangement in attenuating noise when the engine and/or powertrain is not running and not producing noise.
Public/Granted literature
- US20190019492A1 ACTIVE NOISE CONTROL SIMULATED NOISE AUDIO OUTPUT FOR ACTIVE NOISE CONTROL TESTING Public/Granted day:2019-01-17
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