Electronic keyboard-operated musical instrument
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United States of America Patent
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-
Aug 30, 1983
Grant Date -
N/A
app pub date -
Feb 3, 1982
filing date -
Feb 7, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic organ has a digital control circuit with a sampling circuit (3) which generates key identification signals (B) in the form of pulse series wherein the pulses denote the actuated keys (2) of the keyboard (1). Such pulses cause a tone selector or evaluating circuit (12) to transmit tone signals to a voicer circuit (15). A shift register (16, 116 or 216) is provided to delay the key identification signals so that the tone signals which the voicer circuit receives do not correspond to those normally expected on actuation of certain keys. The non-delayed key signal can be superimposed upon the delayed signal or signals (V1, V2) in a suitable summing circuit (17) to thus achieve transpositions, interval couplings and other tonal effects.
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