Piano With Key Movement Detection System
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United States of America Patent
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Issued Date -
Nov 19, 2009
app pub date -
May 13, 2008
filing date -
May 13, 2008
priority date (Note) -
Abandoned
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Abstract
A piano includes a plurality of keys having forward and rearward ends and an emitter and a detector both disposed adjacent the rearward end of each key. The emitter emits a signal directed toward a surface of the rearward end of the key. The detector receives a signal reflected from the surface of the rearward end of the key. A controller is in communication with the emitter and the detector and processes detection signals received from the detector to determine key movement.
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