Fader device

Patent metadata

Field	Value
Publication number	US-11480447-B2
Application number	US-202117159985-A
Country	US
Kind code	B2
Filing date	Jan 27, 2021
Priority date	Feb 4, 2020
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

A fader device includes a conductive shaft, a conductive moving body, and a conductive portion. The conductive moving body is movable in the longitudinal direction of the shaft and includes a gap between it and the conductive shaft. The conductive portion brings the shaft and the moving body into electrical continuity. A signal generation portion generates a touch sense signal. A detection portion detects contact with the conductive moving body based on a signal output according to a capacitance generated between the conductive shaft and the conductive moving body in response to the touch sense signal.

First claim

What is claimed is:

1. A fader device comprising:
a conductive shaft;
a conductive moving body having a through-hole for inserting the conductive shaft and movable in a longitudinal direction of the conductive shaft by slidably engaging the through-hole with the conductive shaft so that a gap is disposed between the conductive shaft; and
a conductive bush provided on the conductive moving body and interposed between the conductive shaft and the conductive moving body so as to bring the conductive shaft and the conductive moving body into electrical continuity.

2. The fader device according to claim 1 , further comprising:
a signal generation portion to generate a touch sense signal; and
a detection portion to detect contact with the conductive moving body based on a signal output according to a capacitance generated between the conductive shaft and the conductive moving body in response to the touch sense signal.

3. The fader device according to claim 2 , wherein
at least one of the signal generation portion and the detection portion is implemented by a processor including a central processing unit (CPU) executing a program stored in a storage unit, or using hard ware including a large scale integration (LSI), an application specific integrated circuit (ASIC) or a field-programmable gate array (FPGA).

Assignees

• Yamaha Corp

Inventors

• Natsume Yoshihiro
• Suzuki Yoshihiro

Classifications

• H01H15/02 Primary

  Details · CPC title

• G01D5/24 Primary

  by varying capacitance · CPC title

• H01R41/00 Primary

  Non-rotary current collectors for maintaining contact between moving and stationary parts of an electric circuit (end pieces terminating in a hook or the like H01R11/12; current collectors for power supply lines of electrically-propelled vehicles B60L5/00) · CPC title

• H01H15/10

  Operating parts · CPC title

• G01D5/2417

  by varying separation · CPC title