Invention Grant
- Patent Title: Speaker protection from overexcursion
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Application No.: US15149987Application Date: 2016-05-09
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Publication No.: US09992571B2Publication Date: 2018-06-05
- Inventor: Rong Hu , Zheng Yan , Jie Su
- Applicant: Cirrus Logic International Semiconductor Ltd.
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Jackson Walker L.L.P.
- Main IPC: H03G11/00
- IPC: H03G11/00 ; H04R3/00 ; H04R29/00

Abstract:
In accordance with embodiments of the present disclosure, a controller configured to be coupled to an audio transducer, may be further configured to receive an audio input signal, calculate a displacement compensation signal in a displacement domain of the audio transducer based on the audio input signal, convert the displacement compensation signal from the displacement domain into a voltage compensation signal in a voltage domain, and apply the voltage compensation signal to the audio input signal, or a derivative thereof, to minimize overexcursion of the audio transducer.
Public/Granted literature
- US20170325024A1 SPEAKER PROTECTION FROM OVEREXCURSION Public/Granted day:2017-11-09
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