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Title:
DISPLAY DEVICE, TUNING DEVICE FOR MUSICAL INSTRUMENT, METRONOME DEVICE, AND TUNING METRONOME DEVICE
Document Type and Number:
Japanese Patent JP2008058067
Kind Code:
A
Abstract:

To provide a stepping meter and a metronome.

A display device includes a stepping motor for driving a rocking driving shaft supporting an indicating needle in the normal rotation and in the reverse rotation; an initial position detection sensor for detecting the initial rocking position of the indicating needle; an initial position storage means for storing the initial position of the stepping motor corresponding to the initial position of the rocking position of the indicating needle; a swinging width storage means for storing the maximum rocking position on one side and the symmetrical maximum rocking position on the other side, centered at the initial position; a stepping motor control means for controlling the stepping motor; a tuning signal generation means for comparing the frequency of a musical sound to be tuned with the frequency of a sound of each sound name determined beforehand, and inputting a signal for rotating the indicating needle corresponding to agreement or disagreement into the stepping motor control means; and a metronome signal generation means for allowing rocking between the maximum rocking position on one side and the maximum rocking position on the other side.


Inventors:
TAKIZAWA NAOKI
ISHII MINORU
HIGO KOUSUKE
Application Number:
JP2006233439A
Publication Date:
March 13, 2008
Filing Date:
August 30, 2006
Export Citation:
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Assignee:
KORG INC
International Classes:
G04F5/02; G01D13/22; G10G7/02; H02P8/00; H02P8/20; H02P8/38
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Taku Kusano