Title:
RECEIVER FOR RADIO INFORMATION SYSTEM
Document Type and Number:
Japanese Patent JPS5833327
Kind Code:
A
Abstract:
PURPOSE: To realize the control of sound volume and to improve the operability for a radio receiver which is used for the radio information of disaster prevention, by making use of the voltage that is induced with touch of fingers to a volume knob, a part of a casing, etc.
CONSTITUTION: A storing circuit 12 is set by a forcible sound volume signal, and a speaker 4 delivers a sound with the maximum level of sound volume. Under such conditions, the commercial power supply induced voltage is obtained with touch of fingers to a sensor part 16. This induced voltage is detected at an amplifying/wave detecting part 14. Then the circuit 12 is reset, and the ringing of the maximum sound volume is released.
Inventors:
TAMURA MASAKATSU
KOYAMA TOSHIO
FUJIKI AKIRA
KOYAMA TOSHIO
FUJIKI AKIRA
Application Number:
JP13112981A
Publication Date:
February 26, 1983
Filing Date:
August 20, 1981
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04B1/16; H03G1/02; H03G3/20; (IPC1-7): H03G3/20; H04B1/16
Attorney, Agent or Firm:
Toshio Nakao