JPS62188850U - - Google Patents
Info
- Publication number
- JPS62188850U JPS62188850U JP7670486U JP7670486U JPS62188850U JP S62188850 U JPS62188850 U JP S62188850U JP 7670486 U JP7670486 U JP 7670486U JP 7670486 U JP7670486 U JP 7670486U JP S62188850 U JPS62188850 U JP S62188850U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- speaker
- acoustic coupling
- amount
- detecting
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7670486U JPS62188850U (xx) | 1986-05-21 | 1986-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7670486U JPS62188850U (xx) | 1986-05-21 | 1986-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62188850U true JPS62188850U (xx) | 1987-12-01 |
Family
ID=30924036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7670486U Pending JPS62188850U (xx) | 1986-05-21 | 1986-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62188850U (xx) |
-
1986
- 1986-05-21 JP JP7670486U patent/JPS62188850U/ja active Pending