Document Type and Number:
Japanese Patent JPH0128523
Kind Code:
B2
Abstract:
An equalizer apparatus for audio equipment capable of selecting between a 2-speaker system and a 4-speaker system, including a display device indicating proper operation of the control knobs of the equalizer. The display device includes a first illuminable element of a first color for indicating operation of one channel of stereophonic sound reproduction, a second illuminable element of a second color for indicating operation of the other channel of stereophonically reproduced sound, and color coded means corresponding to said first and second colors for indicating which of the control knobs produce data signals for the first channel and which of the control knobs produce data signals for the second channel. Further, the color coded means may indicate which of the control knobs produce data signals for each of the divided frequencies of the respective channels during operation of the audio equipment in the manner simulating quadriphonic sound.
Inventors:
KANEKO AKIO
KAJIWARA HITOSHI
KAJIWARA HITOSHI
Application Number:
JP9273980A
Publication Date:
June 02, 1989
Filing Date:
July 09, 1980
Export Citation:
Assignee:
ALPINE ELECTRONICS INC
International Classes:
H03G1/00; H03G5/02; H04S1/00; H04S7/00
Next Patent: JPH0128524