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:
Dec. 01, 2020
Filed:
Nov. 21, 2019
Applicant:
Yamaha Corporation, Hamamatsu, JP;
Inventors:
Assignee:
YAMAHA CORPORATION, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 3/60 (2006.01); H02J 50/10 (2016.01); H04R 25/00 (2006.01); G11B 3/61 (2006.01); H04B 1/20 (2006.01); G11B 31/00 (2006.01); H04H 60/04 (2008.01);
U.S. Cl.
CPC ...
G11B 3/60 (2013.01); H02J 50/10 (2016.02); G11B 3/61 (2013.01); G11B 31/00 (2013.01); H04B 1/20 (2013.01); H04H 60/04 (2013.01); H04R 25/43 (2013.01); H04R 2420/01 (2013.01);
Abstract
An audio device includes a base portion a power supply circuit arranged on the base portion and configured to output electric power; a rotation body rotatably supported by the base portion and configured to, upon rotation of the rotation body, move a playback point of a piece of music; an electric circuit arranged on the rotation body; and a non-contact power feeding mechanism configured to supply in a non-contact manner the electric power output by the power supply circuit to the electric circuit in which the non-contact power feeding mechanism is arranged on a path from the power supply circuit to the electric circuit.