Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

2007-07-24

2007-07-24

Donels, Jeffrey W (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S615000

Reexamination Certificate

active

10805107

ABSTRACT:
An electronic musical instrument is composed of a main body portion and parts such as an upper keyboard, a lower keyboard, and so on that are selected from among parts of a high-grade and low-grade in accordance with the model thereof and placed in the main body portion, in which a ROM stores control programs necessary for control of the electronic musical instrument of the high-grade model and low-grade model so that a CPU selects any of these and executes it. The selection is performed in accordance with an ON/OFF state of a limit switch provided to correspond to one of the parts. A portion of the part is made to have a different shape depending on the grade, so that when the part is placed in the main body portion, the limit switch comes into an ON/OFF state in accordance with the grade of the part.

REFERENCES:
patent: 5220117 (1993-06-01), Yamada et al.
patent: 5420374 (1995-05-01), Hotta
patent: 5554814 (1996-09-01), Nakata
patent: 5728961 (1998-03-01), Tamura
patent: 5731534 (1998-03-01), Tamura et al.
patent: 6492584 (2002-12-01), Ikeya
patent: 2003/0131712 (2003-07-01), Torimura
patent: 2003/0131719 (2003-07-01), Kubita
patent: 11-073185 (1999-03-01), None

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