JPH0340547B2 - - Google Patents
Info
- Publication number
- JPH0340547B2 JPH0340547B2 JP20233586A JP20233586A JPH0340547B2 JP H0340547 B2 JPH0340547 B2 JP H0340547B2 JP 20233586 A JP20233586 A JP 20233586A JP 20233586 A JP20233586 A JP 20233586A JP H0340547 B2 JPH0340547 B2 JP H0340547B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- ring trip
- circuit
- ring
- comparator
- 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
- 230000007257 malfunction Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60-188876 | 1985-08-28 | ||
JP18887685 | 1985-08-28 | ||
JP60-287058 | 1985-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62230147A JPS62230147A (ja) | 1987-10-08 |
JPH0340547B2 true JPH0340547B2 (de) | 1991-06-19 |
Family
ID=16231419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20233586A Granted JPS62230147A (ja) | 1985-08-28 | 1986-08-28 | リングトリツプ回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62230147A (de) |
-
1986
- 1986-08-28 JP JP20233586A patent/JPS62230147A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS62230147A (ja) | 1987-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6118379B2 (de) | ||
US4447675A (en) | Ring-trip detector | |
US3932713A (en) | Induction cancellation circuit | |
CA1160780A (en) | Trunk interface circuit with current compensation | |
US3892929A (en) | Fault detector and current limiter | |
US4492821A (en) | Subscriber connection circuit | |
JPH0340547B2 (de) | ||
US3894192A (en) | DX signaling circuit | |
KR100343343B1 (ko) | 호출음신호발생방법및장치 | |
JPS6145664A (ja) | リングトリツプ回路 | |
JPH05167678A (ja) | 電話の電子加入者リンク回路アセンブリ | |
JPS589412Y2 (ja) | 電話機の不要な信号器音サプレサ | |
JPS59221147A (ja) | リング・トリツプ回路 | |
JPH05130650A (ja) | 有線回線におけるオンフツクトランスミツシヨン回路 | |
JPH023347B2 (de) | ||
JPS59169260A (ja) | ライン回路 | |
GB2160745A (en) | A device for adaptation of a decimal or multifrequency code dialling keyboard to a conventional telephone set | |
NZ206167A (en) | Single port gyrator:transformer coupled | |
JPH09162975A (ja) | 呼出信号送出回路 | |
TW358286B (en) | Ring-trip circuit | |
JPS63301657A (ja) | 呼出信号発生回路 | |
JPH04220096A (ja) | 加入者回路 | |
JPH0413906B2 (de) | ||
JPH0453473B2 (de) | ||
JPS62233968A (ja) | 電流供給回路 |