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:
Jan. 19, 2021
Filed:
Oct. 31, 2018
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventor:
Jun Yang, San Jose, CA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 3/04 (2006.01); H04R 29/00 (2006.01); H04R 9/06 (2006.01); H03G 7/00 (2006.01); H04R 1/02 (2006.01);
U.S. Cl.
CPC ...
H04R 3/007 (2013.01); H04R 3/04 (2013.01); H04R 29/001 (2013.01); H03G 7/002 (2013.01); H04R 1/025 (2013.01); H04R 3/005 (2013.01); H04R 9/06 (2013.01); H04R 29/003 (2013.01); H04R 2430/01 (2013.01);
Abstract
A system manages temperature and excursion effects on a loudspeaker. Data corresponding to a temperature of the loudspeaker and data corresponding to an excursion (i.e., displacement) of a membrane of the loudspeaker are determined. The dynamic ranges of the temperature and excursion data are compressed, combined, and smoothed. This smoothed data is multiplied with a delayed version of audio data; peak values of the result may be limited. This operation may be performed on multiple frequency bands of audio data. The final output data is combined to form a full-band signal and sent to a loudspeaker.