CA2090379A1 - Communication interface circuit - Google Patents
Communication interface circuitInfo
- Publication number
- CA2090379A1 CA2090379A1 CA002090379A CA2090379A CA2090379A1 CA 2090379 A1 CA2090379 A1 CA 2090379A1 CA 002090379 A CA002090379 A CA 002090379A CA 2090379 A CA2090379 A CA 2090379A CA 2090379 A1 CA2090379 A1 CA 2090379A1
- Authority
- CA
- Canada
- Prior art keywords
- component
- interface circuit
- transistor
- circuit according
- voltage
- 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.)
- Abandoned
Links
- 238000004891 communication Methods 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 239000004020 conductor Substances 0.000 description 7
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 230000005693 optoelectronics Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9203079 | 1992-03-12 | ||
| FR9203079A FR2688606A1 (fr) | 1992-03-12 | 1992-03-12 | Circuit d'interface pour appareil de communication. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2090379A1 true CA2090379A1 (en) | 1993-09-13 |
Family
ID=9427695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002090379A Abandoned CA2090379A1 (en) | 1992-03-12 | 1993-02-25 | Communication interface circuit |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0560246A1 (enrdf_load_stackoverflow) |
| JP (1) | JPH0614102A (enrdf_load_stackoverflow) |
| CN (1) | CN1077577A (enrdf_load_stackoverflow) |
| AU (1) | AU3510393A (enrdf_load_stackoverflow) |
| CA (1) | CA2090379A1 (enrdf_load_stackoverflow) |
| FI (1) | FI931088A7 (enrdf_load_stackoverflow) |
| FR (1) | FR2688606A1 (enrdf_load_stackoverflow) |
| IL (1) | IL105023A0 (enrdf_load_stackoverflow) |
| TW (1) | TW242207B (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2287155B (en) * | 1994-02-23 | 1998-08-12 | Motorola Inc | Telecommunications device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354060A (en) * | 1979-07-26 | 1982-10-12 | Stromberg-Carlson Corporation | Electronic telephone |
| US4495382A (en) * | 1982-04-23 | 1985-01-22 | Fairchild Camera And Instrument Corporation | Telephone regulator circuitry |
-
1992
- 1992-03-12 FR FR9203079A patent/FR2688606A1/fr not_active Withdrawn
-
1993
- 1993-02-17 TW TW082101101A patent/TW242207B/zh active
- 1993-02-25 CA CA002090379A patent/CA2090379A1/en not_active Abandoned
- 1993-03-08 EP EP93103659A patent/EP0560246A1/fr not_active Withdrawn
- 1993-03-08 JP JP5046269A patent/JPH0614102A/ja active Pending
- 1993-03-11 CN CN93102998.8A patent/CN1077577A/zh active Pending
- 1993-03-11 FI FI931088A patent/FI931088A7/fi unknown
- 1993-03-11 IL IL105023A patent/IL105023A0/xx unknown
- 1993-03-11 AU AU35103/93A patent/AU3510393A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| FI931088A0 (fi) | 1993-03-11 |
| EP0560246A1 (fr) | 1993-09-15 |
| FR2688606A1 (fr) | 1993-09-17 |
| CN1077577A (zh) | 1993-10-20 |
| TW242207B (enrdf_load_stackoverflow) | 1995-03-01 |
| JPH0614102A (ja) | 1994-01-21 |
| FI931088A7 (fi) | 1993-09-13 |
| IL105023A0 (en) | 1993-07-08 |
| AU3510393A (en) | 1993-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5881129A (en) | Self-monitoring line interface circuit | |
| US4514595A (en) | Active impedance line feed circuit | |
| EP0309115B1 (en) | Line interface circuit | |
| US4322586A (en) | Transformerless line interface circuit | |
| US5912513A (en) | Method and apparatus for reducing power dissipation in DC termination circuit | |
| EP0225069B1 (en) | Telephone power supply | |
| US5020102A (en) | Semi-floating AC/DC active termination circuit with current sink | |
| JPS596549B2 (ja) | 電話機用３端子電源回路 | |
| JPH0666827B2 (ja) | 電話機インタフェイス | |
| CA2090379A1 (en) | Communication interface circuit | |
| US6128384A (en) | Self configuring telephone headset amplifier | |
| US4485341A (en) | Current limiter circuit | |
| EP0096473B1 (en) | Active impedance line feed circuit | |
| US6377681B1 (en) | Signal line driving circuit with self-controlled power dissipation | |
| GB2234139A (en) | Power circuit for telephone apparatus | |
| US4809324A (en) | Subscriber line interface circuit (SLIC) isolation from lighting-induced ground overshoots | |
| US4649235A (en) | Telephone circuit with a class-B amplifier output stage | |
| CA1139470A (en) | Transformerless line interface circuit | |
| EP0396886B1 (en) | Current switch for use in telephony systems or the like | |
| US4752952A (en) | Subscriber circuit link interface for an automatic telephone exchange | |
| EP0880844B1 (en) | Current distribution circuit having an additional parallel dc-current sinking branch | |
| AU703549B2 (en) | Bootstrap power supply | |
| HU183157B (en) | Circuit arrangement for electronic d.c. telegraphic transmitter | |
| CA1116767A (en) | Electronic bridge circuit for supplying dc power and tone signals to subscriber line | |
| US6654461B1 (en) | Synthesized telephone line ring signal impedance termination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |