BE905134A - Module analogique d'abonne / de jonction et generateur de signal de sonnerie programmable. - Google Patents
Module analogique d'abonne / de jonction et generateur de signal de sonnerie programmable.Info
- Publication number
- BE905134A BE905134A BE2/61018A BE2061018A BE905134A BE 905134 A BE905134 A BE 905134A BE 2/61018 A BE2/61018 A BE 2/61018A BE 2061018 A BE2061018 A BE 2061018A BE 905134 A BE905134 A BE 905134A
- Authority
- BE
- Belgium
- Prior art keywords
- signal
- ringing
- subscriber
- output
- signal generator
- 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
- H04M19/023—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone by reversing the polarity of the current at the exchange
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
- Manipulation Of Pulses (AREA)
- Nuclear Medicine (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
Le générateur de signal de sonnerie 32 est couplé aux deux conducteurs de ligne d'abonné téléphonique 18. Un signal de décrochage d'abonné (coupure de la sonnerie) est obtenu en éliminant par filtrage la composante alternative et en comparant le signal continu restant avec un signal continu de référence dérivé directement de la source de signal. Le détecteur de la présence d'un courant de sonnerie 60 décèle le courant de sonnerie dans la boucle d'abonné à la sortie du tampon 58 en alimentant le signal de sortie à un circuit détecteur de crete dont la sortie est comparée à un signal de référence qui définit le seuil pour une condition de présence positive de courant. Le circuit de détection de déclenchement de sonnerie 62 décèle une coupure de sonnerie via la ligne 64 et la sortie du tampon 58.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/756,879 US4656659A (en) | 1985-07-18 | 1985-07-18 | Programmable ring signal generator |
Publications (1)
Publication Number | Publication Date |
---|---|
BE905134A true BE905134A (fr) | 1987-01-19 |
Family
ID=25045442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE2/61018A BE905134A (fr) | 1985-07-18 | 1986-07-18 | Module analogique d'abonne / de jonction et generateur de signal de sonnerie programmable. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4656659A (fr) |
EP (1) | EP0213342A3 (fr) |
JP (1) | JPS6221359A (fr) |
AU (1) | AU588896B2 (fr) |
BE (1) | BE905134A (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4897871A (en) * | 1980-04-04 | 1990-01-30 | Siemens Corporation | Apparatus for transmitting and/or receiving balanced signals on a two-wire telecommunication line |
CA1247708A (fr) * | 1985-10-28 | 1988-12-28 | Stanley D. Rosenbaum | Amplificateur a double rail de sortie |
GB8606151D0 (en) * | 1986-03-12 | 1986-04-16 | Gen Electric Co Plc | Telephone system circuit |
IT1213306B (it) * | 1986-07-29 | 1989-12-20 | Sgs Microelettronica Spa | Circuito telefonico, integrabile monoliticamente, per l'invio disegnali di suoneria in una linea telefonica d'utente e per il riconoscimento dello sgangio in fase di suoneria. |
IT1197977B (it) * | 1986-11-13 | 1988-12-21 | Sgs Microelettronica Spa | Circuito telefonico, integrabile monoliticamente, per l'invio di segnali di suoneria in una linea telefonica d'utente ed il riconoscimento dello sgancio in fase di suoneria |
KR900008817A (ko) * | 1988-11-30 | 1990-06-04 | 안시환 | 교환시스템에서의 자동적인 링 부하 균등 배분방법 |
US4924511A (en) * | 1988-12-16 | 1990-05-08 | Siemens Transmission Systems, Inc. | Ring signal generator for generating ring signals of different frequencies and power levels in response to user selection |
US4908857A (en) * | 1989-05-22 | 1990-03-13 | Siemens Transmission Systems, Inc. | Isolated drive circuit |
US4965692A (en) * | 1989-07-31 | 1990-10-23 | Siemens Transmission Systems, Inc. | Overload detector and protection circuit |
US5001748A (en) * | 1989-08-21 | 1991-03-19 | Siemens Transmission Systems, Inc. | Ringing signal generator |
US4955053A (en) * | 1990-03-16 | 1990-09-04 | Reliance Comm/Tec Corporation | Solid state ringing switch |
US5260996A (en) * | 1990-12-10 | 1993-11-09 | Reliance Comm/Tec Corporation | Current limited electronic ringing generator |
US5140630A (en) * | 1991-05-01 | 1992-08-18 | Light Logic, Ltd. | Added main line apparatus |
JP3189054B2 (ja) * | 1991-05-07 | 2001-07-16 | 富士通株式会社 | 加入者装置 |
JPH0563798A (ja) * | 1991-08-30 | 1993-03-12 | Fujitsu Ltd | 呼出信号発生回路 |
JP3056551B2 (ja) * | 1991-09-02 | 2000-06-26 | 富士通株式会社 | 加入者系伝送装置のアラーティングケーダンス制御方式 |
US5307407A (en) * | 1991-12-19 | 1994-04-26 | Nec America, Inc. | 20 Hz ring generator using high frequency PWM control |
DE4218845C2 (de) * | 1992-06-09 | 1994-10-27 | Bosch Telecom | Schaltungsanordnung für einen Rufspannungsgenerator |
JP3226617B2 (ja) * | 1992-08-20 | 2001-11-05 | 株式会社東芝 | ベル信号発生回路 |
US6169800B1 (en) * | 1997-07-02 | 2001-01-02 | Motorola, Inc. | Integrated circuit amplifier and method of adaptive offset |
US6289099B1 (en) * | 1998-11-30 | 2001-09-11 | Qualcomm Inc. | Ringer for satellite user terminals |
US6690792B1 (en) * | 1999-11-19 | 2004-02-10 | Adtran Inc. | Active decoupling and power management circuit for line-powered ringing generator |
FI111675B (fi) * | 2000-10-13 | 2003-08-29 | Tellabs Oy | Menetelmä ja piirijärjestely ring trip -havainnon tuottamiseksi lankavälitteisessä puhelinverkossa |
US7847433B2 (en) * | 2007-11-27 | 2010-12-07 | Rain Bird Corporation | Universal irrigation controller power supply |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2371840A1 (fr) * | 1976-10-04 | 1978-06-16 | Ibm France | Circuit d'interface |
MX150197A (es) * | 1980-03-31 | 1984-03-29 | Int Standard Electric Corp | Mejoras a sistema de senalizacion telefonica |
US4349703A (en) * | 1980-03-31 | 1982-09-14 | International Telephone And Telegraph Corporation | Programmable ring signal generator |
US4402039A (en) * | 1981-09-03 | 1983-08-30 | Bell Telephone Laboratories, Incorporated | Telephone line circuit |
JPS5854773A (ja) * | 1981-09-28 | 1983-03-31 | Nec Corp | 加入者回路 |
-
1985
- 1985-07-18 US US06/756,879 patent/US4656659A/en not_active Expired - Lifetime
-
1986
- 1986-07-08 AU AU59851/86A patent/AU588896B2/en not_active Ceased
- 1986-07-11 EP EP86109547A patent/EP0213342A3/fr not_active Withdrawn
- 1986-07-18 BE BE2/61018A patent/BE905134A/fr not_active IP Right Cessation
- 1986-07-18 JP JP61168186A patent/JPS6221359A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AU588896B2 (en) | 1989-09-28 |
EP0213342A3 (fr) | 1988-11-30 |
AU5985186A (en) | 1987-01-22 |
EP0213342A2 (fr) | 1987-03-11 |
US4656659A (en) | 1987-04-07 |
JPS6221359A (ja) | 1987-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CA | Change of address of the owner of the patent |
Owner name: *ALCATEL N.V.STRAWINSKYLAAN 537, NL-1077 XX AMSTER Effective date: 19860718 |
|
CH | Change of patent owner |
Owner name: *ALCATEL N.V. Effective date: 19860718 |
|
RE | Patent lapsed |
Owner name: ALCATEL N.V. Effective date: 19880731 |