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. 25, 2019
Filed:
Sep. 29, 2017
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Joshua D. Atkins, Los Angeles, CA (US);
Mehrez Souden, Los Angeles, CA (US);
Symeon Delikaris-Manias, Helsinki, FI;
Peter Raffensperger, Cupertino, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/40 (2006.01); G06N 3/08 (2006.01); G06F 16/61 (2019.01);
U.S. Cl.
CPC ...
H04R 1/406 (2013.01); G06F 16/61 (2019.01); G06N 3/08 (2013.01); H04S 2400/01 (2013.01); H04S 2400/15 (2013.01);
Abstract
Impulse responses of a device are measured. A database of sound files is generated by convolving source signals with the impulse responses of the device. The sound files from the database are transformed into time-frequency domain. One or more sub-band directional features is estimated at each sub-band of the time-frequency domain. A deep neural network (DNN) is trained for each sub-band based on the estimated one or more sub-band directional features and a target directional feature.