IN160093B - - Google Patents
Info
- Publication number
- IN160093B IN160093B IN630/DEL/83A IN630DE1983A IN160093B IN 160093 B IN160093 B IN 160093B IN 630DE1983 A IN630DE1983 A IN 630DE1983A IN 160093 B IN160093 B IN 160093B
- Authority
- IN
- India
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/026—Arrangements for interrupting the ringing current
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Measurement Of Current Or Voltage (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8213321A FR2531296B1 (fr) | 1982-07-30 | 1982-07-30 | Procede et dispositif de detection de boucle en phase sonnerie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN160093B true IN160093B (es) | 1987-06-27 |
Family
ID=9276482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN630/DEL/83A IN160093B (es) | 1982-07-30 | 1983-09-12 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4540853A (es) |
| EP (1) | EP0100514B1 (es) |
| JP (1) | JPS5944160A (es) |
| CA (1) | CA1205228A (es) |
| DE (1) | DE3374642D1 (es) |
| FR (1) | FR2531296B1 (es) |
| IE (1) | IE54686B1 (es) |
| IN (1) | IN160093B (es) |
| ZA (1) | ZA835570B (es) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4731827A (en) * | 1984-10-29 | 1988-03-15 | David Systems, Inc. | Interswitch line circuit |
| US4665547A (en) * | 1984-11-02 | 1987-05-12 | At&T Company | Limiting amplifier for common mode feedback in telephone line feed circuits |
| US4712233A (en) * | 1985-04-22 | 1987-12-08 | Fairchild Camera & Instrument Corp. | Monolithic telephone subscriber line interface circuit |
| US4731828A (en) * | 1985-06-07 | 1988-03-15 | Plessey Overseas Limited | Ring trip detection in telecommunications exchanges |
| US4674117A (en) * | 1985-08-29 | 1987-06-16 | Gte Communication Systems Corporation | Subscriber line circuit having an improved offhook supervision circuit |
| FR2605164A1 (fr) * | 1986-10-08 | 1988-04-15 | Cit Alcatel | Dispositif de detection de boucle en mode sonnerie interne ou externe |
| US4742536A (en) * | 1986-10-24 | 1988-05-03 | Energy Innovations, Inc. | Telephone monitor circuit and method |
| US4811389A (en) * | 1987-11-12 | 1989-03-07 | General Electric Company | Parallel off hook detector for electronic remote data recorder |
| WO1990007834A1 (en) * | 1988-12-24 | 1990-07-12 | Alcatel N.V. | Impedance synthesis multiple loop using filtering means |
| US5287404A (en) * | 1990-12-20 | 1994-02-15 | Northern Telecom Limited | Telephone subscriber line voltage change detection |
| SE9400186D0 (sv) * | 1994-01-21 | 1994-01-21 | Ericsson Telefon Ab L M | Förfarande i ett telekommunikationssystem |
| US5694465A (en) * | 1995-03-16 | 1997-12-02 | Advanced Micro Devices, Inc. | Integrated ringer for short telephone lines |
| SE511917C2 (sv) * | 1996-12-10 | 1999-12-13 | Ericsson Telefon Ab L M | Förfarande för anordning för att detektera en ringbortkoppling |
| US6489755B1 (en) * | 2000-09-18 | 2002-12-03 | Adtran, Inc. | Active ripple and noise filter for telecommunication equipment powering |
| US7162028B2 (en) * | 2001-08-29 | 2007-01-09 | Intel Corporation | Universal telephony interface polarity detector |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA94162A (en) * | 1905-04-14 | 1905-07-11 | William Richard Stitt | Loom |
| US3746798A (en) * | 1972-05-23 | 1973-07-17 | Gte Automatic Electric Lab Inc | Electronic ring trip circuit |
| US3829619A (en) * | 1972-12-29 | 1974-08-13 | Stromberg Carlson Corp | Telephone ring trip circuit |
| DE2359867C2 (de) * | 1973-11-30 | 1975-10-23 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung für wechselstromüberlagerte Gleichstromkreise in Fernmeldeinsbesondere Fernsprechanlagen |
| JPS50104509A (es) * | 1974-01-18 | 1975-08-18 | ||
| JPS5261455A (en) * | 1975-11-17 | 1977-05-20 | Tokyo Electric Power Co Inc:The | Integrator correction equipment |
| CH604453A5 (es) * | 1976-06-25 | 1978-09-15 | Ibm | |
| US4132864A (en) * | 1977-04-28 | 1979-01-02 | International Business Machines Corporation | Digital measurement of the DC value in an AC signal adapted to telephone off-hook detection |
| FR2452832A1 (fr) * | 1979-03-30 | 1980-10-24 | Telecommunications Sa | Dispositif de commande de sonnerie |
| FR2470498A1 (fr) * | 1979-11-21 | 1981-05-29 | Trt Telecom Radio Electr | Dispositif de detection du bouclage d'une ligne d'abonne pendant la sonnerie |
| JPS5725759A (en) * | 1980-07-23 | 1982-02-10 | Fujitsu Ltd | Ring tripping circuit |
| US4396805A (en) * | 1981-09-21 | 1983-08-02 | Siemens Corporation | Ring trip detector for a subscriber line interface circuit |
-
1982
- 1982-07-30 FR FR8213321A patent/FR2531296B1/fr not_active Expired
-
1983
- 1983-07-21 US US06/516,010 patent/US4540853A/en not_active Expired - Lifetime
- 1983-07-26 EP EP83107328A patent/EP0100514B1/fr not_active Expired
- 1983-07-26 DE DE8383107328T patent/DE3374642D1/de not_active Expired
- 1983-07-29 IE IE1812/83A patent/IE54686B1/en not_active IP Right Cessation
- 1983-07-29 CA CA000433541A patent/CA1205228A/fr not_active Expired
- 1983-07-29 ZA ZA835570A patent/ZA835570B/xx unknown
- 1983-07-30 JP JP58140436A patent/JPS5944160A/ja active Pending
- 1983-09-12 IN IN630/DEL/83A patent/IN160093B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IE831812L (en) | 1984-01-30 |
| JPS5944160A (ja) | 1984-03-12 |
| FR2531296B1 (fr) | 1988-04-15 |
| EP0100514A3 (en) | 1985-04-03 |
| FR2531296A1 (fr) | 1984-02-03 |
| EP0100514A2 (fr) | 1984-02-15 |
| IE54686B1 (en) | 1990-01-03 |
| EP0100514B1 (fr) | 1987-11-19 |
| US4540853A (en) | 1985-09-10 |
| ZA835570B (en) | 1984-03-28 |
| DE3374642D1 (en) | 1987-12-23 |
| CA1205228A (fr) | 1986-05-27 |