Automatic performing apparatus for musical performance data with

Details Automatic performing apparatus for musical performance data with Automatic performing apparatus for musical performance data with

1981-11-13

1983-06-14

Witkowski, S. J.

Music

Instruments

84 118, 84DIG12, G10H 142, G10H 306, G10H 700

Patent

active

043876200

ABSTRACT:
In an automatic performing apparatus in which musical performance data are sequentially read out of a memory at time intervals corresponding to the durations of musical notes to thereby execute an automatic performance, a repeatedly played part is stored as subroutine data in the memory, together with main routine data, thereby to store much data in the memory having a limited capacity. The main routine data contains instruction data for calling the subroutine data and the subroutine data contains instruction data for the return to the main routine data. In response to a signal from a subroutine control circuit, the count of an address counter for designating an address in the memory jumps to an address of the subroutine data when the subroutine calling instruction data is read out, and jumps back to an address of the main routine data when the instruction data for the return to the main routine is read out.

REFERENCES:
patent: 3958483 (1976-05-01), Borrevik et al.
patent: 4186639 (1980-02-01), Robinson et al.
patent: 4299154 (1981-11-01), Dietrich et al.
patent: 4344345 (1982-08-01), Sano

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