Invention Grant
- Patent Title: Feed-forward, filter-based, acoustic control system
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Application No.: US15947252Application Date: 2018-04-06
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Publication No.: US10531180B2Publication Date: 2020-01-07
- Inventor: Sanjay N. Kadiwala , Jonathan E. Eklund
- Applicant: MOTOROLA MOBILITY LLC
- Applicant Address: US IL Chicago
- Assignee: Motorola Mobility LLC
- Current Assignee: Motorola Mobility LLC
- Current Assignee Address: US IL Chicago
- Agency: Yudell Isidore PLLC
- Main IPC: H04R1/22
- IPC: H04R1/22 ; H04R3/04 ; H04R1/10 ; H03G5/16 ; H04R3/00

Abstract:
An electronic device, method, and computer program product provide acoustic limiting of an audio output using a feed-forward, filter-based, acoustic control system. An audio signal is received that has more than one acoustic frequency spectra intended for conversion to an acoustic output by transducers of an electronic device. A determination is made of an expected acoustic magnitude respectively for each acoustic frequency spectrum of the more than one acoustic frequency spectra. A determination is made whether the expected acoustic magnitude of any acoustic frequency spectra will exceed an acoustic output threshold. The acoustic control system attenuates the first acoustic frequency spectrum to generate a filtered audio signal with an attenuated acoustic frequency spectrum that is less than or equal to the acoustic output threshold. The filtered audio signal is transmitted to the at least one transducer to the produce the audio output that does not exceed.
Public/Granted literature
- US20190313180A1 FEED-FORWARD, FILTER-BASED, ACOUSTIC CONTROL SYSTEM Public/Granted day:2019-10-10
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