Musical scale generating circuit

Details Musical scale generating circuit Musical scale generating circuit

1986-09-11

1987-10-13

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With simultaneous time indicating means

368273, 84 101, 84 103, G04B 2102, G10H 100

Patent

active

046995188

ABSTRACT:
A musical scale generating circuit comprises an oscillator, a programmable frequency divider for frequency-dividing an output signal from the oscillator, a tone generating circuit for generating a tone, and a frequency dividing ratio data output circuit for successively outputting frequency dividing ratio data determinative of a plurality of frequency dividing ratios of the programmable frequency divider. A frequency dividing ratio discriminating circuit detects whether a frequency dividing ratio necessary for outputting a desired scale frequency is an odd or even number. A frequency dividing ratio correcting circuit is operative to add one to or substract one from frequency dividing ratio data, when a frequency dividing ratio is detected to be an odd numbered frequency dividing ratio and applies corrected frequency dividing ratio to the programmable frequency divider. A one-half frequency divider further divides a signal from the programmable frequency divider by two.

REFERENCES:
patent: 4245336 (1981-01-01), Stietenroth
patent: 4271495 (1981-06-01), Scherzinger et al.
patent: 4368989 (1983-01-01), Kawashima
patent: 4481852 (1984-11-01), Makuta et al.
patent: 4488272 (1984-12-01), Scott, Jr.

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