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US 4,061,072 AGranted
Device to identify chords on a keyboard instrument and key mechanism for use therewith
OwnerJuan M. del Castilloinventor
Life of this patent
Estimating the term…
Abstract
Operation of a pushbutton or key mechanism by the operation of a single pushbutton or key through circuitry which may include fiber optics signals all keys on the keyboard included in the particular chord. The device may be built in or simply attached to the keyboard instrument. The keys are spring, and string or wire operated to return a key to its inoperative position when the next key is pressed down.
Claims14
A device for identifying chords on a keyboard musical instrument comprising
- chord selection means including a plurality of operators having indicia associated therewith designating the chord names to be identified;
- lighting means including lamp means and fiber optic means, said lamp means including a lamp for each note of said chords, said fiber optic means including a plurality of fiber optics for each of said lamps, one end of said plurality of fiber optics for each of said lamps being located adjacent that said lamp and the other end of said plurality of fiber optics having individual ends of each of said fiber optics positioned adjacent a key of the keyboard in each of a plurality of octaves, having the same note name assigned to said lamp located at the opposite end of that said fiber optic;
- and electrical means responsive to actuation of each of said operators to light said lamps for notes comprising the chord designated by the chord name associated with each said operator.
Dependencies are inferred from the claim text.