< Back
Sign In to Follow Application
View All Documents & Correspondence
Login

Condenser Microphone

Abstract: A condenser microphone includes a support, a plate having a fixed electrode bridged across the supports, a diaphragm, which has a moving electrode at a center portion thereof and which vibrates due to sound waves applied thereto, and a spacer, in which a first end is fixed to the plate, and a second end is fixed to the near-end portion of the diaphragm so as to surround the center portion of the diaphragm, wherein an air gap is formed between the plate and the diaphragm. This reduces the tensile stress of the diaphragm so as to increase the amplitude of vibration of the diaphragm. Hence, it is possible to increase the sensitivity of the condenser microphone. A structure constituted of the plate, the diaphragm, and the spacer is bridged across the support by means of the bridges, which absorb the residual stress of the diaphragm due to the deformation thereof.

Get Free WhatsApp Updates!
Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
11 August 2008
Publication Number
07/2009
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application

Applicants

YAMAHA CORPORATION
10-1, NAKAZAWA-CHO, NAKA-KU, HAMAMATSU-SHI SHIZUOKA-KEN

Inventors

1. SUZUKI YUKITOSHI
C/O YAMAHA CORPORATION, 10-1, NAKAZAWA-CHO, NAKA-KU, HAMAMATSU-SHI, SHIZUOKA-KEN
2. SUZUKI TOSHIHISA
C/O YAMAHA CORPORATION, 10-1, NAKAZAWA-CHO, NAKA-KU, HAMAMATSU-SHI, SHIZUOKA-KEN

Specification

A condenser microphone includes a support, a plate having a fixed electrode bridged across the supports, a diaphragm, which has a moving electrode at a center portion thereof and which vibrates due to sound waves applied thereto, and a spacer, in which a first end is fixed to the plate, and a second end is fixed to the near-end portion of the diaphragm so as to surround
the center portion of the diaphragm, wherein an air gap is formed between the plate and the diaphragm. This reduces the tensile stress of the diaphragm so as to increase the amplitude of vibration of the diaphragm. Hence, it is possible to increase the sensitivity of the condenser microphone. A structure constituted of the plate, the diaphragm, and the spacer is bridged across the support by means of the bridges, which absorb the residual stress of the diaphragm due to the deformation thereof.

Documents

Application Documents

# Name Date
1 3280-KOLNP-2008-(11-08-2008)-PCT REQUEST.pdf 2008-08-11
1 3280-KOLNP-2008-ANNEXURE TO FORM-3.pdf 2017-11-03
2 3280-KOLNP-2008-(11-08-2008)-NOTIFICATION OF THE RECORDING CHANGE.pdf 2008-08-11
2 3280-kolnp-2008-assignment.pdf 2017-11-03
3 3280-KOLNP-2008-FIRST EXAMINATION REPORT.pdf 2017-11-03
3 3280-KOLNP-2008-(10-02-2009)-POWER OF AUTHORITY.pdf 2009-02-10
4 3280-KOLNP-2008-PA.pdf 2017-11-03
4 3280-KOLNP-2008-(10-02-2009)-CORRESPONDENCE.pdf 2009-02-10
5 3280-KOLNP-2008_EXAMREPORT.pdf 2016-06-30
5 3280-KOLNP-2008-(10-02-2009)-ANNEXTURE TO FORM 3.pdf 2009-02-10
6 3280-kolnp-2008-pct priority document notification.pdf 2011-10-07
6 3280-KOLNP-2008-ABANDONED LETTER.pdf 2015-05-20
7 3280-kolnp-2008-international search report.pdf 2011-10-07
7 3280-KOLNP-2008-(27-06-2013)-FIRST EXAMINATION REPORT.pdf 2013-06-27
8 3280-kolnp-2008-international publication.pdf 2011-10-07
8 3280-kolnp-2008-abstract.pdf 2011-10-07
9 3280-kolnp-2008-claims.pdf 2011-10-07
9 3280-kolnp-2008-form 5.pdf 2011-10-07
10 3280-kolnp-2008-correspondence.pdf 2011-10-07
10 3280-kolnp-2008-form 3.pdf 2011-10-07
11 3280-kolnp-2008-description (complete).pdf 2011-10-07
11 3280-kolnp-2008-form 18.pdf 2011-10-07
12 3280-kolnp-2008-drawings.pdf 2011-10-07
12 3280-kolnp-2008-form 1.pdf 2011-10-07
13 3280-kolnp-2008-drawings.pdf 2011-10-07
13 3280-kolnp-2008-form 1.pdf 2011-10-07
14 3280-kolnp-2008-description (complete).pdf 2011-10-07
14 3280-kolnp-2008-form 18.pdf 2011-10-07
15 3280-kolnp-2008-correspondence.pdf 2011-10-07
15 3280-kolnp-2008-form 3.pdf 2011-10-07
16 3280-kolnp-2008-claims.pdf 2011-10-07
16 3280-kolnp-2008-form 5.pdf 2011-10-07
17 3280-kolnp-2008-international publication.pdf 2011-10-07
17 3280-kolnp-2008-abstract.pdf 2011-10-07
18 3280-kolnp-2008-international search report.pdf 2011-10-07
18 3280-KOLNP-2008-(27-06-2013)-FIRST EXAMINATION REPORT.pdf 2013-06-27
19 3280-kolnp-2008-pct priority document notification.pdf 2011-10-07
19 3280-KOLNP-2008-ABANDONED LETTER.pdf 2015-05-20
20 3280-KOLNP-2008_EXAMREPORT.pdf 2016-06-30
20 3280-KOLNP-2008-(10-02-2009)-ANNEXTURE TO FORM 3.pdf 2009-02-10
21 3280-KOLNP-2008-PA.pdf 2017-11-03
21 3280-KOLNP-2008-(10-02-2009)-CORRESPONDENCE.pdf 2009-02-10
22 3280-KOLNP-2008-FIRST EXAMINATION REPORT.pdf 2017-11-03
22 3280-KOLNP-2008-(10-02-2009)-POWER OF AUTHORITY.pdf 2009-02-10
23 3280-kolnp-2008-assignment.pdf 2017-11-03
23 3280-KOLNP-2008-(11-08-2008)-NOTIFICATION OF THE RECORDING CHANGE.pdf 2008-08-11
24 3280-KOLNP-2008-ANNEXURE TO FORM-3.pdf 2017-11-03
24 3280-KOLNP-2008-(11-08-2008)-PCT REQUEST.pdf 2008-08-11