Opto-electronic sensing method and device for an acoustic piano

Details Opto-electronic sensing method and device for an acoustic piano Opto-electronic sensing method and device for an acoustic piano

1990-11-26

1993-07-27

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

84724, G01D 534

Patent

active

052312836

ABSTRACT:
A new, inexpensive and unobtrusive opto-electronic sensor which requires no manual adjustments after installation under the keys of the piano keyboard. Post-installation manual adjustments are unnecessary because a method embodied in a computer program and performed by a microprocessor digitally adjusts the operating ranges of the keys. After electronic adjustment, the opto-electronic sensors are scanned and sampled according to another portion of the method to determine the current key position and velocity. The key position and the velocity determined by the method are then transmitted in a MIDI compatible data stream.

REFERENCES:
patent: 4152699 (1979-05-01), Sachsse

Affiliated with

Also associated with

Rating

Opto-electronic sensing method and device for an acoustic piano does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Opto-electronic sensing method and device for an acoustic piano, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Opto-electronic sensing method and device for an acoustic piano will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2343887