Title:
R. P. M. INDICATOR FOR TURNTABLE OF PLAYER
Document Type and Number:
Japanese Patent JPS5440604
Kind Code:
A
Abstract:
PURPOSE: To simplify such indication as is reliable in recognition and as is observable with eyes by indicating the r.p.m. in accordance with the lighting conditions and flashing orders of a plurality of light emitting diodes.
More Like This:
Inventors:
SHIRAKAWA MASAMI
Application Number:
JP10696177A
Publication Date:
March 30, 1979
Filing Date:
September 06, 1977
Export Citation:
Assignee:
SONY CORP
International Classes:
G01P3/42; G11B19/28; (IPC1-7): G11B19/28