Tone pitch changing device for selecting and storing groups of p

Details Tone pitch changing device for selecting and storing groups of p Tone pitch changing device for selecting and storing groups of p

1989-12-26

1992-06-02

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84657, 84445, 84451, G10H 700, G10H 500, H02M 500

Patent

active

051177277

ABSTRACT:
A tone pitch changing device comprising an operation content memory for storing the contents of an operation required for generating a sound having a pitch which belongs to one of a group of pitches, a frequency interval between each pair of adjacent pitches of each group being different among the groups of pitches, a group selecting unit for selecting and indicating one of the groups of pitches, an operation content reading unit for reading the contents of an operation, required for generating a sound having a pitch of the group selected and indicated by the group selecting unit, from the operation content storing unit, an operating unit for performing an operation in accordance with the contents of the operation read from the operation content reading unit, an operation result memory for storing the result of the operation performed by the operating unit, a pitch indicating unit for indicating a pitch of the group, and an operation result reading unit for reading the result of the operation performed with respect to a pitch indicated by the pitch indicating unit.

REFERENCES:
patent: 4238985 (1980-12-01), Adachi
patent: 4503745 (1985-03-01), Clark et al.
patent: 4635517 (1987-01-01), Nagashima et al.
patent: 4724736 (1988-02-01), Isozaki
patent: 4796509 (1989-01-01), Mizuguchi et al.
patent: 4947724 (1990-08-01), Hirano et al.
patent: 4957032 (1990-09-01), Hirano et al.

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