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:
Feb. 15, 2022
Filed:
Dec. 21, 2020
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Gaetan R. Lorho, Redwood City, CA (US);
Jonathan D. Sheaffer, San Jose, CA (US);
Symeon Delikaris Manias, Los Angeles, CA (US);
Frank Baumgarte, Sunnyvale, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04S 7/00 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 3/04 (2006.01); H04R 29/00 (2006.01); H04R 5/027 (2006.01);
U.S. Cl.
CPC ...
H04S 7/30 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H04R 5/027 (2013.01); H04R 29/005 (2013.01); H04S 2400/15 (2013.01); H04S 2420/01 (2013.01);
Abstract
Transfer functions can describe responses of microphones or ears to sounds at different locations on a sphere. The transfer functions can be compressed by determining, based on transfer functions, a) one or more basis transfer functions, and b) spherical harmonics coefficients that describe variations of the transfer functions with respect to spherical coordinates. Other aspects are described and claimed.