Electronic musical instrument with memory read sequence control

Details Electronic musical instrument with memory read sequence control Electronic musical instrument with memory read sequence control

1993-02-02

1994-03-29

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84604, 84607, 84622, 364723, G10H 106, G10H 702, G10H 712

Patent

active

052986721

ABSTRACT:
An electronic musical instrument utilizes a memory unit containing sampled values of waveforms stored in separately addressable memory locations. A first waveform address bus and a second waveform data bus are both connected to the unit. A counter is connected at its output to the first bus and is connected at its input to both a third address bus and a fourth system data bus. Sampled values of waveforms are supplied to the third and fourth buses. Waveform data is read out of the second bus. An arrangement including a central processing unit, a random access memory and a read only memory is connected to the third and fourth buses. This arrangement together with the counter determines, according to the stored sampled values, the sequence in which the individual memory locations and the sound information stored in the locations should be read.

REFERENCES:
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patent: 4406203 (1983-09-01), Okamoto et al.
patent: 4413543 (1983-11-01), Iba
patent: 4444082 (1984-04-01), Whitefield
patent: 4614983 (1986-09-01), Usami
patent: 4667556 (1987-06-01), Hanzawa et al.
patent: 4681008 (1987-07-01), Morikawa et al.

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