Patent ID: 8952232
Filing Date: 2015-02-10
Classification: G10C,G10H

Abstract:
1. A curved digital piano keyboard, comprising: a plurality of natural and accidental piano keys, the piano keys being in a single plane and collectively forming an inward-facing arc toward a central reference point, wherein a size of the piano keys conforms generally to a conventional dimension of natural and accidental piano keys at least at a play location of the respective keys; a key action mechanism configured to return each piano key to an original position after being depressed and subsequently released; and electronic sensor circuitry configured to generate sensor signals when one or more piano keys are being depressed, the sensor circuitry having a radius which falls within a range of a radius of a front of accidental keys and a common radius of the accidental keys, wherein each piano key has a top, bottom, front, and back, and wherein the key action mechanism comprises: