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:
Nov. 02, 2021
Filed:
Sep. 14, 2020
Apple Inc., Cupertino, CA (US);
Tom-Davy W. Saux, Los Altos, CA (US);
Brian D. Clark, San Jose, CA (US);
Hanchi Chen, San Jose, CA (US);
Victoria Chiu, San Jose, CA (US);
Vladan Bajic, San Francisco, CA (US);
Dana Massie, Santa Cruz, CA (US);
Andrew P. Bright, Los Gatos, CA (US);
Thomas M. Jensen, San Francisco, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
A method for audio signal processing of microphone signals of a headphone. An audio signal from a first microphone of a headphone is filtered by an ANC system to produce a first filtered signal. Dynamic range control is performed upon the first filtered signal to produce a first dynamic range adjusted signal that drives a speaker of the headphone. Other aspects are also described and claimed.