Title:
SOUND COLLECTOR
Document Type and Number:
Japanese Patent JP2000115881
Kind Code:
A
Abstract:
To obtain a sound collector in which dirt or freezing of a signal reception part is eliminated.
This sound collector provided with a vibrator 2, that catches a sound wave and outputs a sound signal and with an amplifier means 3 that amplifier its signal is provided with a drive means 4 that causes the vibrator 2 to vibrate. Thus, the vibrator 2 not only catches sound waves but also is driven at a proper time interval and dust and a frozen material are shaken off by a vibrating motion caused by the drive so as to maintain the vibrator 2 in a normal state at all times.
Inventors:
Kinoshita, Hidetoshi
Application Number:
JP1998000282720
Publication Date:
April 21, 2000
Filing Date:
October 05, 1998
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04R3/00; G10H3/14; G10H3/18; H04R1/08; H04R23/00; H04R23/02; H04R25/00; (IPC1-7): H04R3/00