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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.:

US 10734955 B1

PDFFull Text
Date of Patent:
Aug. 04, 2020

Filed:

Mar. 22, 2019

Audio amplifier, audio output device including the same, and electronic apparatus

Applicant:

Rohm Co., Ltd., Kyoto, JP;

Inventors:

Yuji Saegusa, Kyoto, JP;

Keita Okamoto, Kyoto, JP;

Assignee:

ROHM CO., LTD., Kyoto, JP;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Disler Paul

Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 3/68 (2006.01); H03F 1/52 (2006.01); H04R 3/04 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45089 (2013.01); H03F 1/523 (2013.01); H03F 3/68 (2013.01); H04R 3/04 (2013.01); H03F 2200/03 (2013.01); H03F 2200/426 (2013.01); H03F 2203/45374 (2013.01);
Abstract

An audio amplifier of a BTL (Bridged Tied Load) type, includes a first amplifier, a second amplifier, a first output pin connected to an output of the first amplifier, a second output pin connected to an output of the second amplifier, a first monitor pin, a second monitor pin, a current source connected to the first monitor pin and configured to be switched on and off, a switch interposed between the second monitor pin and a fixed voltage line, and a load state determination circuit configured to detect a state of a load based on a potential difference between the first monitor pin and the second monitor pin.

Find Patent Forward Citations

Saegusa, Yuji. (2020). Audio amplifier, audio output device including the same, and electronic apparatus (U.S. Patent No. 10734955). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10734955

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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