The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2019
Filed:
Dec. 21, 2017
Applicant:
Harman International Industries, Incorporated, Stamford, CT (US);
Inventors:
Douglas J. Button, Simi Valley, CA (US);
Russell H. Lambert, Highland, UT (US);
Assignee:
Harman International Industries, Incorporated, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H03G 1/04 (2006.01); H04R 3/00 (2006.01); H03G 1/00 (2006.01); H04R 9/02 (2006.01);
U.S. Cl.
CPC ...
H03G 1/04 (2013.01); H03G 1/0005 (2013.01); H04R 3/007 (2013.01); H04R 9/025 (2013.01); H04R 29/003 (2013.01);
Abstract
A loudspeaker real-time state variable prediction system may include a loudspeaker having a voice coil and a magnet, and a non-linear excursion model configured to estimate non-linear excursion of the loudspeaker. The system may further include a thermal model configured to utilize thermal parameters and frequency based on at least one thermal property of the loudspeaker, and a gain adjustment thermal limiter configured to apply a gain reduction an incoming audio signal to protect the loudspeaker from thermal overload.