MX9602380A - Un metodo y un dispositivo para generar una señal de llamada. - Google Patents
Un metodo y un dispositivo para generar una señal de llamada.Info
- Publication number
- MX9602380A MX9602380A MX9602380A MX9602380A MX9602380A MX 9602380 A MX9602380 A MX 9602380A MX 9602380 A MX9602380 A MX 9602380A MX 9602380 A MX9602380 A MX 9602380A MX 9602380 A MX9602380 A MX 9602380A
- Authority
- MX
- Mexico
- Prior art keywords
- subscriber line
- current
- generating
- input terminal
- ringing signal
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Burglar Alarm Systems (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Telephonic Communication Services (AREA)
Abstract
Para generar una señal de llamada por medio de un circuito de interfaz de línea de abonado que tiene dos etapas (A) finales, cada una para suministrar un alambre (LA, LB) de línea de abonado individual, uno (LA) de los alambres de línea de abonado se conecta con una de las terminales de entrada de un amplificador de funcionamiento, la otra terminal de entrada que está conectada con el punto de interconexion entre dos resistencias conectadas en serie que tienen la misma resistencia, la terminal de salida del amplificador de funcionamiento está conectado, a través de una primera resistencia (ZT), con una terminal (R) de entrada de corriente de circuito de interfaz de línea de abonado para generar una primera corriente, mientras que un generador (U) de señales, a través de una segunda resistencia (ZR), está también conectado con la terminal (R) de entrada de corriente para generar una segunda corriente, las etapas (A) finales del circuito de interfaz de línea del abonado siendo suministradas con corriente desde la terminal (R) de entrada de corriente para impulsar las etapas (A) finales para generar la señal de llamada.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9400185A SE502276C2 (sv) | 1994-01-21 | 1994-01-21 | Förfarande och anordning för generering av en ringsignal |
| PCT/SE1995/000047 WO1995020290A1 (en) | 1994-01-21 | 1995-01-19 | A method and an arrangement for generating a ringing signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX9602380A true MX9602380A (es) | 1997-04-30 |
Family
ID=20392646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9602380A MX9602380A (es) | 1994-01-21 | 1995-01-19 | Un metodo y un dispositivo para generar una señal de llamada. |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5553132A (es) |
| EP (1) | EP0740881B1 (es) |
| JP (1) | JP3457674B2 (es) |
| KR (1) | KR100265481B1 (es) |
| CN (1) | CN1083205C (es) |
| AT (1) | ATE230537T1 (es) |
| BR (1) | BR9506450A (es) |
| CA (1) | CA2179387A1 (es) |
| DE (1) | DE69529275T2 (es) |
| FI (1) | FI962918A (es) |
| MX (1) | MX9602380A (es) |
| NO (1) | NO314870B1 (es) |
| SE (1) | SE502276C2 (es) |
| TW (1) | TW255085B (es) |
| WO (1) | WO1995020290A1 (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE506296C2 (sv) * | 1995-12-01 | 1997-12-01 | Ericsson Telefon Ab L M | Förfarande och anordning för alstrande av en ringsignal |
| US6167135A (en) * | 1995-12-01 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for generating a ringing signal |
| CN1063305C (zh) * | 1998-08-15 | 2001-03-14 | 深圳市华为电气股份有限公司 | 中大功率铃流变换器的次级功率管驱动电路 |
| CN1087546C (zh) * | 1998-08-15 | 2002-07-10 | 深圳市安圣电气有限公司 | 小功率铃流发生器的次级信号切换电路 |
| CN1057183C (zh) * | 1998-08-15 | 2000-10-04 | 深圳市华为电气股份有限公司 | 铃流发生器的缓起动与过流保护电路 |
| US6282238B1 (en) | 1999-05-28 | 2001-08-28 | 3Com Corporation | Adapter card that selects between an ISDN interface and an analog modem interface |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3689700A (en) * | 1970-09-21 | 1972-09-05 | Lear Siegler Inc | Subscriber loop extension unit |
| US3723662A (en) * | 1971-12-09 | 1973-03-27 | Gte Automatic Electric Lab Inc | D.c. compensated subscriber interface transformer circuit for telephone system |
| IT1079588B (it) * | 1977-02-14 | 1985-05-13 | Sits Soc It Telecom Siemens | Generatore di chiamata statico per sistemi di telecomunicazioni |
| NL8000859A (nl) * | 1980-02-12 | 1981-09-01 | Philips Nv | Inrichting voor het toevoeren van een wekspanning aan een abonneelijn. |
| US4431868A (en) * | 1981-07-09 | 1984-02-14 | International Telephone And Telegraph Corporation | Solid state telephone line interface circuit with ringing capability |
| SE453240B (sv) * | 1986-05-06 | 1988-01-18 | Ericsson Telefon Ab L M | Anordning i ett telekommunikationssystem for att strommata en telefonapparat |
-
1994
- 1994-01-21 SE SE9400185A patent/SE502276C2/sv not_active IP Right Cessation
-
1995
- 1995-01-19 BR BR9506450A patent/BR9506450A/pt not_active IP Right Cessation
- 1995-01-19 CA CA002179387A patent/CA2179387A1/en not_active Abandoned
- 1995-01-19 AT AT95907185T patent/ATE230537T1/de not_active IP Right Cessation
- 1995-01-19 MX MX9602380A patent/MX9602380A/es unknown
- 1995-01-19 DE DE69529275T patent/DE69529275T2/de not_active Expired - Lifetime
- 1995-01-19 WO PCT/SE1995/000047 patent/WO1995020290A1/en active IP Right Grant
- 1995-01-19 KR KR1019960703637A patent/KR100265481B1/ko not_active IP Right Cessation
- 1995-01-19 JP JP51950795A patent/JP3457674B2/ja not_active Expired - Lifetime
- 1995-01-19 CN CN95191172.4A patent/CN1083205C/zh not_active Expired - Lifetime
- 1995-01-19 EP EP95907185A patent/EP0740881B1/en not_active Expired - Lifetime
- 1995-01-20 TW TW084100489A patent/TW255085B/zh not_active IP Right Cessation
- 1995-01-20 US US08/375,687 patent/US5553132A/en not_active Expired - Lifetime
-
1996
- 1996-07-15 NO NO19962960A patent/NO314870B1/no not_active IP Right Cessation
- 1996-07-19 FI FI962918A patent/FI962918A/fi unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995020290A1 (en) | 1995-07-27 |
| EP0740881B1 (en) | 2003-01-02 |
| NO962960L (no) | 1996-07-15 |
| SE9400185L (sv) | 1995-07-22 |
| FI962918A0 (fi) | 1996-07-19 |
| CN1083205C (zh) | 2002-04-17 |
| NO314870B1 (no) | 2003-06-02 |
| EP0740881A1 (en) | 1996-11-06 |
| KR100265481B1 (ko) | 2000-09-15 |
| TW255085B (es) | 1995-08-21 |
| JPH09508244A (ja) | 1997-08-19 |
| DE69529275D1 (de) | 2003-02-06 |
| ATE230537T1 (de) | 2003-01-15 |
| SE9400185D0 (sv) | 1994-01-21 |
| CA2179387A1 (en) | 1995-07-27 |
| JP3457674B2 (ja) | 2003-10-20 |
| FI962918A (fi) | 1996-07-19 |
| DE69529275T2 (de) | 2003-08-28 |
| US5553132A (en) | 1996-09-03 |
| SE502276C2 (sv) | 1995-09-25 |
| BR9506450A (pt) | 1997-09-02 |
| NO962960D0 (no) | 1996-07-15 |
| CN1138399A (zh) | 1996-12-18 |
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