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 9438220 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 06, 2016

Filed:

Oct. 21, 2015
Applicant:

Yamaha Corporation, Hamamatsu-shi, Shizuoken, JP;

Inventor:

Masatsugu Okazaki, Hamamatsu, JP;

Assignee:

YAMAHA CORPORATION, Hamamatsu-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/00 (2006.01); G10H 1/34 (2006.01);
U.S. Cl.
CPC ...
H03K 17/00 (2013.01); G10H 1/348 (2013.01); G10H 2220/275 (2013.01); G10H 2220/295 (2013.01);
Abstract

A state detecting circuit has a first switch circuit connected to a first selection line and a second switch circuit connected to a second selection line. The first switch circuit includes two switches, and performs an arithmetic operation of ON/OFF states of the switches and a selection signal. Thus, since one switch circuit performs an arithmetic operation using ON/OFF states of the two switches, the number of selection lines and the number of parts can be reduced.


Find Patent Forward Citations

Okazaki, Masatsugu. (2016). State detecting circuit, key-press detector, and musical instrument (U.S. Patent No. 9438220). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9438220

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

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