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:
Apr. 20, 2021
Filed:
Jun. 21, 2018
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventors:
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/22 (2006.01); H04R 1/40 (2006.01); H04R 1/32 (2006.01); H04R 1/08 (2006.01); H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
H04R 1/222 (2013.01); H04R 1/083 (2013.01); H04R 1/2869 (2013.01); H04R 1/326 (2013.01); H04R 1/406 (2013.01);
Abstract
A beamformer system isolates a desired direction of an audio signal received from a first microphone array disposed on a first plane of the system and a second microphone array disposed on a second plane of the system. A spatial covariance matrix (SCM) defines the spatial covariance between pairs of microphones. A diagonal of the SCM is varied based on the placement of the microphones; values corresponding to one microphone array are increased, and values corresponding to the other microphone array are decreased.