Title:
エレクトレットコンデンサマイクロホン
Document Type and Number:
Japanese Patent JP2004510373
Kind Code:
A
Abstract:
The present invention relates to an electret condenser microphone including the vibratory diaphragm which is comprised of an electret film into which an electric charge is charged; a conductive film formed on one side of the electret film and a polar ring disposed at a peripheral edge of the underside of the conductive film. Also, this microphone includes a vibratory diaphragm support member which is disposed on the vibratory diaphragm and has a concave groove and a concave portion. On the vibratory diaphragm support member is attached an integrated circuit serving to receive and amplify a transformed electrical signal from the vibratory diaphragm.
Inventors:
Yun Du Young
Park Sung Ho
Park Sung Ho
Application Number:
JP2002531443A
Publication Date:
April 02, 2004
Filing Date:
October 31, 2001
Export Citation:
Assignee:
BSE Company Limited
International Classes:
H04R19/01; H04R19/04; H04R1/04; (IPC1-7): H04R19/01
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Tetsuo Kanamoto
Koji Hagiwara