JPH0226891U - - Google Patents
Info
- Publication number
- JPH0226891U JPH0226891U JP10509488U JP10509488U JPH0226891U JP H0226891 U JPH0226891 U JP H0226891U JP 10509488 U JP10509488 U JP 10509488U JP 10509488 U JP10509488 U JP 10509488U JP H0226891 U JPH0226891 U JP H0226891U
- Authority
- JP
- Japan
- Prior art keywords
- face
- back electrodes
- end plate
- diaphragms
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009977 dual effect Effects 0.000 claims 1
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
第１図はこの考案の実施例を示す断面図である
。
FIG. 1 is a sectional view showing an embodiment of this invention.
Claims (1)
音孔が形成されたケースと、 そのケースの両端板とそれぞれ対向して配され
た第１、第２振動板と、 その第１、第２振動板と対向して配され、音孔
が形成された第１、第２背極と、 これら第１、第２背極を保持する共通の背極ホ
ルダと、 その背極ホルダ内に配された共通の音響抵抗材
と、 上記第１、第２背極にそれぞれゲートが接続さ
れたデユアルゲートＦＥＴと、 を具備する単一指向性マイクロホン。[Claims for Utility Model Registration] A case in which a sound hole is formed in each end plate and a sound hole is formed in the center of the side surface, and first and second diaphragms arranged to face each end plate of the case. , first and second back electrodes arranged to face the first and second diaphragms and having sound holes formed therein, and a common back electrode holder that holds these first and second back electrodes; A unidirectional microphone comprising: a common acoustic resistance material disposed within the back electrode holder; and a dual gate FET having gates connected to the first and second back electrodes, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988105094U JP2536239Y2 (en) | 1988-08-08 | 1988-08-08 | Unidirectional microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988105094U JP2536239Y2 (en) | 1988-08-08 | 1988-08-08 | Unidirectional microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0226891U true JPH0226891U (en) | 1990-02-21 |
| JP2536239Y2 JP2536239Y2 (en) | 1997-05-21 |
Family
ID=31337403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988105094U Expired - Lifetime JP2536239Y2 (en) | 1988-08-08 | 1988-08-08 | Unidirectional microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536239Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006304048A (en) * | 2005-04-22 | 2006-11-02 | Sony Corp | Microphone |
| JP2007225533A (en) * | 2006-02-27 | 2007-09-06 | Audio Technica Corp | Diaphragm tension measuring device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54133320A (en) * | 1978-04-07 | 1979-10-17 | Victor Co Of Japan Ltd | Directivity changeable condenser microphone |
| JPH0241099A (en) * | 1988-07-30 | 1990-02-09 | Sony Corp | Microphone equipment |
-
1988
- 1988-08-08 JP JP1988105094U patent/JP2536239Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54133320A (en) * | 1978-04-07 | 1979-10-17 | Victor Co Of Japan Ltd | Directivity changeable condenser microphone |
| JPH0241099A (en) * | 1988-07-30 | 1990-02-09 | Sony Corp | Microphone equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006304048A (en) * | 2005-04-22 | 2006-11-02 | Sony Corp | Microphone |
| JP2007225533A (en) * | 2006-02-27 | 2007-09-06 | Audio Technica Corp | Diaphragm tension measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536239Y2 (en) | 1997-05-21 |