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:
Jun. 12, 2018
Filed:
Jan. 20, 2016
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventors:
Robert Ayrapetian, Morgan Hill, CA (US);
Philip Ryan Hilmes, San Jose, CA (US);
Yuwen Su, Cupertino, CA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 3/02 (2006.01); G10K 11/178 (2006.01);
U.S. Cl.
CPC ...
G10K 11/178 (2013.01); G10K 11/1786 (2013.01); G10K 2210/3012 (2013.01); G10K 2210/3025 (2013.01); G10K 2210/30232 (2013.01); G10K 2210/3229 (2013.01);
Abstract
An acoustic echo cancellation (AEC) system that detects and compensates for differences in delay times between the AEC system and a set of wireless speakers. The filter coefficients used for AEC are adjusted based on the determined delay time to correct for frequency domain signal rotation.