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. 07, 2020
Filed:
Nov. 12, 2018
Applicant:
Acer Incorporated, New Taipei, TW;
Inventors:
Assignee:
ACER INCORPORATED, New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/30 (2006.01); G10K 11/178 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3005 (2013.01); G10K 11/178 (2013.01); H04R 3/00 (2013.01); H03G 2201/103 (2013.01);
Abstract
A signal gain control method for an electronic device including an alternating-current (AC) impedance detector and a direct-current (DC) impedance detector is provided. An electronic device may implement the method and may be coupled to an external device. The method includes: detecting an AC impedance of the external device by the AC impedance detector; detecting a DC impedance of the external device by the DC impedance detector; obtaining a gain adjustment value according to the AC impedance and the DC impedance; and adjusting a signal gain of an audio signal output to the external device according to the gain adjustment value.