JPH0441640Y2 - - Google Patents
Info
- Publication number
- JPH0441640Y2 JPH0441640Y2 JP17141387U JP17141387U JPH0441640Y2 JP H0441640 Y2 JPH0441640 Y2 JP H0441640Y2 JP 17141387 U JP17141387 U JP 17141387U JP 17141387 U JP17141387 U JP 17141387U JP H0441640 Y2 JPH0441640 Y2 JP H0441640Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- noise reduction
- emphasis
- zero cross
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 23
- 230000005684 electric field Effects 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000005236 sound signal Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Landscapes
- Noise Elimination (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17141387U JPH0441640Y2 (US06521211-20030218-C00004.png) | 1987-11-11 | 1987-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17141387U JPH0441640Y2 (US06521211-20030218-C00004.png) | 1987-11-11 | 1987-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0177039U JPH0177039U (US06521211-20030218-C00004.png) | 1989-05-24 |
| JPH0441640Y2 true JPH0441640Y2 (US06521211-20030218-C00004.png) | 1992-09-30 |
Family
ID=31463225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17141387U Expired JPH0441640Y2 (US06521211-20030218-C00004.png) | 1987-11-11 | 1987-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441640Y2 (US06521211-20030218-C00004.png) |
-
1987
- 1987-11-11 JP JP17141387U patent/JPH0441640Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0177039U (US06521211-20030218-C00004.png) | 1989-05-24 |
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