Music – Instruments – Electrical musical tone generation
Patent
1990-07-09
1991-10-01
Grimley, A. T.
Music
Instruments
Electrical musical tone generation
84602, 84622, 84626, 84345, G10H 700
Patent
active
050522680
ABSTRACT:
A preselector for a musical instrument includes a memory that stores data for controlling sound parameters emitted by the musical instrument when read from memory in response to actuation of a finger or pedal bar switch. For each independent parameter to be controlled, there is a set of lighted momentary push-button switches that determines the magnitude of that parameter. These values are written into the memory during a first mode at an address determined by the number of depressions of any actuating bar, such as a finger bar or toe bar. The lights behind the switches indicate the magnitude of the parameter. Alternatively, a variable potential converted to a digital signal by an analog-to-digital converter can be used to define the magnitude of the parameter. Just before performance after the values of all the parameters have been written into the memory in the sequence in which they are to be used, an address counter is reset to its initial value. Depression of any bar causes the counter to be advanced once, thereby reading out from memory the new values of the parameter set to be controlling. These values are coupled to a set of RS flip-flops whose outputs are decoded by AND to provide a signal for illuminating a light to indicate the magnitude of the parameter. The outputs of the flip-flops also provide a digital representation of the value of the parameter to the musical instrument sound generators.
REFERENCES:
patent: 3700784 (1972-10-01), Molnar
patent: 3733593 (1973-05-01), Molnar
patent: 4185531 (1980-01-01), Oberhein et al.
patent: 4244263 (1981-01-01), Deutsch et al.
patent: 4296667 (1981-10-01), Wade et al.
Grimley A. T.
Smith Matthew S.
LandOfFree
Preselector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Preselector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preselector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1746595