Keyboard for an electronic musical instrument employing variable capacitors

DETAILED DESCRIPTION A principal object of the present invention is to provide a keyboard for an electronic musical instrument having means for individually indicating the force with which keys of the keyboard are depressed, and for manifesting such indications continuously as long as such keys are depressed.
Another object of the present invention is to provide a simple and inexpensive arrangement for accomplishing the purposes of the present invention.
A further object of the present invention is to provide a keyboard with means for producing a force responsive signal which has an improved "feel" for the operator or player.
These and other objects and advantages of the present invention will become manifest by an examination of the following description and the accompanying drawings.
In one embodiment, a keyboard for an electronic musical instrument has a plurality of variable capacitors associated with the keys, one conductor of each capacitor being secured to an individual key, and movable with such key toward and away from the second conductor, in order to vary the capacitance of such capacitor in accordance with the amount of force with which the key is depressed.
A spring normally maintains the conductors in separated condition.