Memory for electronic recording apparatus using standard melody

Details Memory for electronic recording apparatus using standard melody Memory for electronic recording apparatus using standard melody

1990-11-20

1992-12-15

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84649, G10H 700

Patent

active

051719282

ABSTRACT:
A music recording system on electronic keyboard is disclosed, and the system includes: a key scanning circuit for reading and interpreting the key data from the key board, and for outputting a note number data and a key on/off information: a counter for counting the input signals in accordance with the system clock and based on the key on/off information from the key scanning circuit; a register for latching the content of the counter upon completion of the counting; a pointer generator for looping the length data of the notes and rest; another register for temporarily storing the length data of the notes and rests read by the pointer generator; a comparator for comparing the data latched in the registers; and an output control circuit for forming into byte forms the data of the counted values of the register and the note number data of the key scanning circuit. According to the present invention, a long melody can be stored with a small memory capacity.

REFERENCES:
patent: 4785703 (1988-11-01), Ichiki
patent: 4953438 (1990-09-01), Shibukawa
patent: 4987600 (1991-01-01), Rossum

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