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:
Jul. 10, 2018
Filed:
May. 17, 2017
Applicant:
Stmicroelectronics (Alps) Sas, Grenoble, FR;
Inventors:
Christian Fraisse, Grenoble, FR;
Angelo Nagari, Grenoble, FR;
Assignee:
STMicroelectronics (Alps) SAS, Grenoble, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H03F 3/181 (2006.01);
U.S. Cl.
CPC ...
H04R 3/007 (2013.01); H03F 3/181 (2013.01);
Abstract
An audio device includes an audio amplifier configured to receive an input signal and generate a differential output signal. A first signal combiner circuit is configured to generate a time-convolution signal of an analog current signal and an analog voltage signal. The analog current signal corresponds to a current at the differential output signal, and the analog voltage signal corresponds to a voltage across the differential output signal. A second signal combiner circuit is configured to subtract the generated time-convolution signal from the input signal.