Invention Grant
- Patent Title: Constrained nonlinear parameter estimation for robust nonlinear loudspeaker modeling for the purpose of smart limiting
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Application No.: US15851011Application Date: 2017-12-21
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Publication No.: US10536774B2Publication Date: 2020-01-14
- Inventor: Russell H. Lambert , Douglas J. Button
- Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
- Applicant Address: US CT Stamford
- Assignee: Harman International Industries, Incorporated
- Current Assignee: Harman International Industries, Incorporated
- Current Assignee Address: US CT Stamford
- Agency: Brooks Kushman, P.C.
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R29/00 ; H04R9/02 ; H04R9/06

Abstract:
A thermal model system for estimating a voice coil temperature of a loudspeaker that has frequency dependent parameters to model thermal behavior of the loudspeaker may include a loudspeaker having a voice coil and a magnet, and a thermal model configured to have multiple frequency dependent thermal circuits including the voice coil and the magnet that determine a voice coil temperature which is used to limit input to the loudspeaker to prevent thermal overload of the loudspeaker.
Public/Granted literature
- US20190200122A1 SYSTEM FOR LOUDSPEAKER REAL TIME STATE VARIABLE PREDICTION WITH LIMITING AND LINEAR COMPENSATION Public/Granted day:2019-06-27
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