JPS6486795A - Capacitive coupling cancelation circuit between adjacent voice signal paths - Google Patents
Capacitive coupling cancelation circuit between adjacent voice signal pathsInfo
- Publication number
- JPS6486795A JPS6486795A JP24461387A JP24461387A JPS6486795A JP S6486795 A JPS6486795 A JP S6486795A JP 24461387 A JP24461387 A JP 24461387A JP 24461387 A JP24461387 A JP 24461387A JP S6486795 A JPS6486795 A JP S6486795A
- Authority
- JP
- Japan
- Prior art keywords
- voice signal
- signal paths
- capacitive coupling
- adjacent
- path
- 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
Abstract
PURPOSE:To prevent cross talk due to capacitive coupling between adjacent voice signal paths from being generated by providing a phase inversion circuit and a circuit consisting of a capacitor between the adjacent voice signal paths bidirectionally, and inverting the phase of a voice signal on one side between the voice signal paths with each other and superposing it on the voice signal path on the other side. CONSTITUTION:Capacitive coupling cancelation circuits A, B, C, and D are provided between the adjacent voice signal paths in the voice signal paths 7(1), 8(1), and 9(1) of a parallel wiring patterned unbalance transmission system. In the cancelation circuit A, the voice signal of the voice signal path 7(1) is inputted to an operational amplifier 100 via a resistor 200. The operational amplifier 100 is provided with a feedback resistance 201, and outputs an input signal after inverting the phase of the signal, and is superposed on the voice signal path 8(1) with, for example, a capacitive coupling value C1 via a capacitor 300. Therefore, by conforming the C1 to the capacitive coupling value between the voice signal paths 7(1) and 8(1), it is possible to cancel a cross talk component from the voice speech path 7(1) to 8(1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24461387A JPS6486795A (en) | 1987-09-29 | 1987-09-29 | Capacitive coupling cancelation circuit between adjacent voice signal paths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24461387A JPS6486795A (en) | 1987-09-29 | 1987-09-29 | Capacitive coupling cancelation circuit between adjacent voice signal paths |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486795A true JPS6486795A (en) | 1989-03-31 |
Family
ID=17121341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24461387A Pending JPS6486795A (en) | 1987-09-29 | 1987-09-29 | Capacitive coupling cancelation circuit between adjacent voice signal paths |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486795A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0603667A2 (en) * | 1992-12-23 | 1994-06-29 | Panduit Corp. | Communication connector with capacitor label |
US6765384B2 (en) | 2002-07-01 | 2004-07-20 | Halliburton Energy Services, Inc. | Method and apparatus employing phase cycling for reducing crosstalk in downhole tools |
-
1987
- 1987-09-29 JP JP24461387A patent/JPS6486795A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0603667A2 (en) * | 1992-12-23 | 1994-06-29 | Panduit Corp. | Communication connector with capacitor label |
EP0603667A3 (en) * | 1992-12-23 | 1996-01-24 | Panduit Corp | Communication connector with capacitor label. |
US6765384B2 (en) | 2002-07-01 | 2004-07-20 | Halliburton Energy Services, Inc. | Method and apparatus employing phase cycling for reducing crosstalk in downhole tools |
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