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. 28, 2020
Filed:
Nov. 20, 2018
Applicant:
Audio-technica Corporation, Tokyo, JP;
Inventors:
Yukiko Mochizuki, Tokyo, JP;
Toyokazu Eguchi, Tokyo, JP;
Assignee:
Audio-Technica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 9/02 (2006.01); H02J 50/10 (2016.01); H04R 1/02 (2006.01); H02J 7/02 (2016.01); H02J 7/00 (2006.01); H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
H04R 9/025 (2013.01); H02J 7/025 (2013.01); H02J 50/10 (2016.02); H04R 1/028 (2013.01); H02J 7/0047 (2013.01); H02J 7/0048 (2020.01); H04B 5/0037 (2013.01);
Abstract
An acoustic system includes: a charging apparatus, and speakers that are chargeable with the charging apparatus. The speakers include: a speaker unit that generates a sound based on the first electrical signal, and a power reception coil that is configured to be disposed to have at least a part of it overlaps with the extension line of the central axis of a power transmission coil of the charging apparatus and generates electric power to be supplied to the speaker unit with a magnetic flux generated by a power transmission coil.