Apparatus and method for detecting displacement of a movable...

Details Apparatus and method for detecting displacement of a movable... Apparatus and method for detecting displacement of a movable...

2008-10-21

2010-02-02

Fletcher, Marlon T (Department: 2832)

Music

Instruments

Electrical musical tone generation

C084S725000, C084S730000, C084S743000

Reexamination Certificate

active

07655857

ABSTRACT:
An apparatus for detecting the displacement of a movable member of an electronic musical instrument. The apparatus has superior mechanical durability compared to displacement sensors of the past and can withstand long-term use. The apparatus includes a sensor that provides a detectable electrical characteristic having a value and a spring that, when compressed upon displacement of the movable member acts with the sensor, causing the value of the electrical characteristic to change. The value of the electrical characteristic represents the amount of displacement of the movable member and is used by a controller of the electronic musical instrument.

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