Dynamic controller for sampling channels in an electronic organ

Details Dynamic controller for sampling channels in an electronic organ Dynamic controller for sampling channels in an electronic organ

1983-06-17

1985-06-25

Witkowski, Stanley J.

Music

Instruments

84DIG10, 340365S, G10H 118, G10H 700

Patent

active

045246653

ABSTRACT:
The present invention is a circuit for controlling the sampling of plurality of channels in an electronic organ having multiplexed keying. The channels having information signals at a particular time period is sensed and used to address a memory. The memory has stored a plurality of sequences of digital signals for controlling the multiplexing and demultiplexing operations of the organ. Only those channels containing information signals are sampled which accordingly increases the sampling rate which increases the frequency of the harmonic component of the square wave signals that can be passed by the system and the distortion caused by aliasing of harmonics is diminished.

REFERENCES:
patent: 3899951 (1975-08-01), Griffith et al.
patent: 3902397 (1975-09-01), Morez et al.
patent: 4041826 (1977-08-01), Oya
patent: 4138916 (1979-02-01), Kitagawa
patent: 4179968 (1979-12-01), Suzuki
patent: 4227432 (1980-10-01), Bagus
patent: 4238985 (1980-12-01), Adachi
patent: 4409876 (1983-10-01), Katoh

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