Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1991-03-12

1993-12-14

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84601, G10H 700, G04B 1300, A63H 500

Patent

active

052704769

ABSTRACT:
An electronic musical instrument is controlled to receive key operation messages from a keyboard, sequencer or the like so as to control the data in such a manner that the disadvantages of a first-in first-out system and a map system are diminished and the newest data can be obtained rapidly. A reading device sequentially reads musical pitches out from a first memory so that it can be decided whether the values indicated on note-on/off flags in a second memory have the same state as the flags in a third memory. A command is issued to generate and/or truncate (or mute) musical tones based on key-depression (i.e., key state) data for the musical pitches registered in the second memory, if the flags are not identical with each other. On the other hand, the key-depression data are discarded without issuing any command if the flags are the same.

REFERENCES:
patent: 4454797 (1984-06-01), Amano
patent: 4469000 (1984-09-01), Fujiwara et al.
patent: 4506580 (1985-03-01), Koike
patent: 4745836 (1988-05-01), Dannenberg
patent: 4898059 (1990-02-01), Iizuka
patent: 4960030 (1990-10-01), Fujimori
patent: 4982644 (1991-01-01), Shibukawa
patent: 5129302 (1992-07-01), Nishikawa et al.

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