JPH0411226Y2 - - Google Patents
Info
- Publication number
- JPH0411226Y2 JPH0411226Y2 JP12109485U JP12109485U JPH0411226Y2 JP H0411226 Y2 JPH0411226 Y2 JP H0411226Y2 JP 12109485 U JP12109485 U JP 12109485U JP 12109485 U JP12109485 U JP 12109485U JP H0411226 Y2 JPH0411226 Y2 JP H0411226Y2
- Authority
- JP
- Japan
- Prior art keywords
- recording
- microphone
- circuit
- sensitivity
- detection circuit
- 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.)
- Expired
Links
- 230000035945 sensitivity Effects 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12109485U JPH0411226Y2 (en, 2012) | 1985-08-07 | 1985-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12109485U JPH0411226Y2 (en, 2012) | 1985-08-07 | 1985-08-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6229646U JPS6229646U (en, 2012) | 1987-02-23 |
| JPH0411226Y2 true JPH0411226Y2 (en, 2012) | 1992-03-19 |
Family
ID=31010035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12109485U Expired JPH0411226Y2 (en, 2012) | 1985-08-07 | 1985-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411226Y2 (en, 2012) |
-
1985
- 1985-08-07 JP JP12109485U patent/JPH0411226Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6229646U (en, 2012) | 1987-02-23 |
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