Invention Grant
- Patent Title: State detecting circuit, key-press detector, and musical instrument
- Patent Title (中): 状态检测电路，按键检测器和乐器
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Application No.: US14918938Application Date: 2015-10-21
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Publication No.: US09438220B2Publication Date: 2016-09-06
- Inventor: Masatsugu Okazaki
- Applicant: YAMAHA CORPORATION
- Applicant Address: JP Hamamatsu-shi
- Assignee: YAMAHA CORPORATION
- Current Assignee: YAMAHA CORPORATION
- Current Assignee Address: JP Hamamatsu-shi
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2014-215809 20141022
- Main IPC: H03K17/00
- IPC: H03K17/00 ; G10H1/34
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.
Public/Granted literature
- US20160118031A1 STATE DETECTING CIRCUIT, KEY-PRESS DETECTOR, AND MUSICAL INSTRUMENT Public/Granted day:2016-04-28
Information query
