ES2141333T3 - Procedimiento de deteccion del descolgado durante una llamada y un circuito de interfaz de linea de abonado para detectar el descolgado durante la llamada. - Google Patents
Procedimiento de deteccion del descolgado durante una llamada y un circuito de interfaz de linea de abonado para detectar el descolgado durante la llamada.Info
- Publication number
- ES2141333T3 ES2141333T3 ES95907567T ES95907567T ES2141333T3 ES 2141333 T3 ES2141333 T3 ES 2141333T3 ES 95907567 T ES95907567 T ES 95907567T ES 95907567 T ES95907567 T ES 95907567T ES 2141333 T3 ES2141333 T3 ES 2141333T3
- Authority
- ES
- Spain
- Prior art keywords
- call
- during
- subscriber line
- interface circuit
- line interface
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
-
- 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)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Facsimile Transmission Control (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephone Function (AREA)
Abstract
UN METODO PARA DETECCION DE DESCUELGUE EN UN CIRCUITO DE INTERFAZ DE LINEA DE ABONADO AL SONAR UNA SEÑAL QUE CARECE PREFERENTEMENTE DE UN COMPONENTE DE CORRIENTE DIRECTA, ASI COMO EL USO DE UN CIRCUITO DE INTERFAZ DE LINEA DE ABONADO PARA LA REALIZACION DE DICHO METODO, QUE CONSISTE EN LOS SIGUIENTES PASOS: GENERACION DE UNA SEÑAL QUE ES UNA FUNCION DE LA CORRIENTE DE LINEA (II) A TRAVES DE LA LINEA DE ABONADO, MEDIR EL TIEMPO ({DL}T) QUE LA SEÑAL SOBREPASA UN PRIMER VALOR DE REFERENCIA (V{SUB,TH}), QUE REPRESENTA UN VALOR DE CORRIENTE PREDETERMINADO, COMPARAR EL TIEMPO MEDIDO ({DL}T) CON UN TIEMPO PREDETERMINADO VALORADO E INDICAR EL DESCUELGE EN UN PROCESADOR DEPENDIENDO DE LA COMPARACION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9400186A SE9400186D0 (sv) | 1994-01-21 | 1994-01-21 | Förfarande i ett telekommunikationssystem |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2141333T3 true ES2141333T3 (es) | 2000-03-16 |
Family
ID=20392647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95907567T Expired - Lifetime ES2141333T3 (es) | 1994-01-21 | 1995-01-19 | Procedimiento de deteccion del descolgado durante una llamada y un circuito de interfaz de linea de abonado para detectar el descolgado durante la llamada. |
Country Status (19)
Country | Link |
---|---|
US (1) | US5734712A (es) |
EP (1) | EP0740880B1 (es) |
JP (1) | JP3456484B2 (es) |
KR (1) | KR100356003B1 (es) |
CN (1) | CN1080509C (es) |
AT (1) | ATE186434T1 (es) |
BR (1) | BR9506627A (es) |
CA (1) | CA2179995A1 (es) |
DE (1) | DE69513147T2 (es) |
DK (1) | DK0740880T3 (es) |
ES (1) | ES2141333T3 (es) |
FI (1) | FI962919A (es) |
GR (1) | GR3032001T3 (es) |
MX (1) | MX9602474A (es) |
NO (1) | NO314869B1 (es) |
PT (1) | PT740880E (es) |
SE (1) | SE9400186D0 (es) |
TW (1) | TW265500B (es) |
WO (1) | WO1995020289A1 (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5694465A (en) * | 1995-03-16 | 1997-12-02 | Advanced Micro Devices, Inc. | Integrated ringer for short telephone lines |
US6167135A (en) * | 1995-12-01 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for generating a ringing signal |
KR0173403B1 (ko) * | 1996-04-25 | 1999-04-01 | 김광호 | 전화단말기의 통화로 자동복구 장치 및 그 방법 |
US6178241B1 (en) * | 1997-06-06 | 2001-01-23 | Legerity, Inc. | Switch hook status determination in a communication system |
US6219417B1 (en) * | 1997-06-06 | 2001-04-17 | Advanced Micro Devices, Inc. | Ring trip detection in a communication system |
EP0899926A1 (en) * | 1997-08-25 | 1999-03-03 | Alcatel | Telecommunication device with caller identification |
US5901219A (en) * | 1997-08-27 | 1999-05-04 | 3Com Corporation | Method for ring signal detection |
US6570984B1 (en) | 1999-04-20 | 2003-05-27 | Eci Telecom Ltd. | Ring trip detection circuit and method for subscriber line interface |
US6257063B1 (en) * | 2000-05-24 | 2001-07-10 | Daimlerchrysler Corporation | Method for measuring vibration damping |
SE0002350L (sv) * | 2000-06-21 | 2001-12-22 | Ericsson Telefon Ab L M | En metod att generera en ringsignal i en abonnentlinjekrets |
US7215764B2 (en) * | 2001-02-06 | 2007-05-08 | Legerity, Inc. | Current sensing echo cancellation device |
US20040120507A1 (en) * | 2002-12-18 | 2004-06-24 | Nasser Pooladian | Ring signal voltage offset for subscriber line interface circuit |
CN111405131B (zh) * | 2020-03-30 | 2021-04-20 | 深圳震有科技股份有限公司 | 一种远端摘机信号的检测方法、***及存储介质 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3591728A (en) * | 1966-02-11 | 1971-07-06 | Western Electronics Dev Corp | Local ringing and ring-trip relay for carrier terminal |
DE2014950B2 (de) * | 1970-03-28 | 1976-01-02 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Verfahren und Schaltungsanordnung zur Rufabschaltung in Fernmelde-, insbesondere Fernsprechanlagen |
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 |
US4234762A (en) * | 1978-12-29 | 1980-11-18 | Bell Telephone Laboratories, Incorporated | Ring trip detector circuit |
US4406929A (en) * | 1981-02-26 | 1983-09-27 | Motorola Inc. | Hook status detector for a subscriber loop interface circuit |
US4396805A (en) * | 1981-09-21 | 1983-08-02 | Siemens Corporation | Ring trip detector for a subscriber line interface circuit |
JPS5897949A (ja) * | 1981-12-08 | 1983-06-10 | Fujitsu Ltd | リングトリップ回路 |
JPS5897950A (ja) * | 1981-12-08 | 1983-06-10 | Fujitsu Ltd | リングトリツプ方式 |
IT1155661B (it) * | 1982-03-24 | 1987-01-28 | Cselt Centro Studi Lab Telecom | Circuito elettronico per la rivelazione dello sgancio del microtelefono in presenza della corrente di chiamata |
US4455456A (en) * | 1982-04-26 | 1984-06-19 | International Telephone And Telegraph Corporation | Digital supervisory circuit for a telephone system |
SE431704B (sv) * | 1982-07-06 | 1984-02-20 | Ericsson Telefon Ab L M | Forfarande vid strommatning av en abonnentapparat fran en telefonvexel |
US4524246A (en) * | 1982-07-07 | 1985-06-18 | Harris Corporation | SLIC II--common-mode current rejection |
FR2531296B1 (fr) * | 1982-07-30 | 1988-04-15 | Cit Alcatel | Procede et dispositif de detection de boucle en phase sonnerie |
SE433284B (sv) * | 1982-09-17 | 1984-05-14 | Ericsson Telefon Ab L M | Anordning for strommatning av en abonnentapparat |
SE433285B (sv) * | 1982-09-22 | 1984-05-14 | Ericsson Telefon Ab L M | Anordning for strommatning av en abonnentapparat |
EP0165363B1 (fr) * | 1984-06-20 | 1988-08-31 | International Business Machines Corporation | Circuit detecteur de variations de courant |
US4731828A (en) * | 1985-06-07 | 1988-03-15 | Plessey Overseas Limited | Ring trip detection in telecommunications exchanges |
SE448264B (sv) * | 1985-12-19 | 1987-02-02 | Ericsson Telefon Ab L M | Anordninng for justering av impedansverdet hos ett impedansnet i en integrerad halvledarkrets |
ATE57806T1 (de) * | 1985-12-20 | 1990-11-15 | Siemens Ag | Schaltungsanordnung zur schleifenschlussindikation waehrend der rufphase. |
SE453240B (sv) * | 1986-05-06 | 1988-01-18 | Ericsson Telefon Ab L M | Anordning i ett telekommunikationssystem for att strommata en telefonapparat |
SE453626B (sv) * | 1986-06-27 | 1988-02-15 | Ericsson Telefon Ab L M | Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal |
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. |
US4742536A (en) * | 1986-10-24 | 1988-05-03 | Energy Innovations, Inc. | Telephone monitor circuit and method |
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 |
SE465547B (sv) * | 1990-02-01 | 1991-09-23 | Ericsson Telefon Ab L M | Saett och krets foer likstroemsmatning till en telefonlinje |
SE467333B (sv) * | 1990-10-24 | 1992-06-29 | Ericsson Telefon Ab L M | Krets foer att alstra debiteringspulser avsedda foer presentation hos en teleabonnent |
JPH06121038A (ja) * | 1991-07-08 | 1994-04-28 | Fujitsu Ltd | リングトリップ判定方法 |
US5402482A (en) * | 1991-07-08 | 1995-03-28 | Fujitsu Limited | Ring trip deciding circuit |
US5425089A (en) * | 1992-01-27 | 1995-06-13 | Chan; John Y. | Low cost telephone caller identification device and method |
JPH077984B2 (ja) * | 1992-10-26 | 1995-01-30 | 日通工株式会社 | 加入者線回路の呼出信号制御方式 |
US5406623A (en) * | 1993-04-23 | 1995-04-11 | At&T Corp. | Method and apparatus for ringing telephone stations |
-
1994
- 1994-01-21 SE SE9400186A patent/SE9400186D0/xx unknown
-
1995
- 1995-01-19 BR BR9506627A patent/BR9506627A/pt not_active IP Right Cessation
- 1995-01-19 AT AT95907567T patent/ATE186434T1/de not_active IP Right Cessation
- 1995-01-19 JP JP51872295A patent/JP3456484B2/ja not_active Expired - Fee Related
- 1995-01-19 KR KR1019960703903A patent/KR100356003B1/ko not_active IP Right Cessation
- 1995-01-19 ES ES95907567T patent/ES2141333T3/es not_active Expired - Lifetime
- 1995-01-19 WO PCT/EP1995/000187 patent/WO1995020289A1/en active IP Right Grant
- 1995-01-19 CN CN95191308A patent/CN1080509C/zh not_active Expired - Lifetime
- 1995-01-19 MX MX9602474A patent/MX9602474A/es unknown
- 1995-01-19 DK DK95907567T patent/DK0740880T3/da active
- 1995-01-19 DE DE69513147T patent/DE69513147T2/de not_active Expired - Lifetime
- 1995-01-19 PT PT95907567T patent/PT740880E/pt unknown
- 1995-01-19 CA CA002179995A patent/CA2179995A1/en not_active Abandoned
- 1995-01-19 EP EP95907567A patent/EP0740880B1/en not_active Expired - Lifetime
- 1995-01-20 TW TW084100494A patent/TW265500B/zh active
- 1995-01-20 US US08/375,684 patent/US5734712A/en not_active Expired - Lifetime
-
1996
- 1996-07-19 NO NO19963022A patent/NO314869B1/no not_active IP Right Cessation
- 1996-07-19 FI FI962919A patent/FI962919A/fi unknown
-
1999
- 1999-11-30 GR GR990403094T patent/GR3032001T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
JPH09507622A (ja) | 1997-07-29 |
KR100356003B1 (ko) | 2003-01-24 |
WO1995020289A1 (en) | 1995-07-27 |
CN1080509C (zh) | 2002-03-06 |
TW265500B (es) | 1995-12-11 |
CA2179995A1 (en) | 1995-07-27 |
EP0740880B1 (en) | 1999-11-03 |
BR9506627A (pt) | 1997-09-16 |
SE9400186D0 (sv) | 1994-01-21 |
DK0740880T3 (da) | 2000-04-17 |
PT740880E (pt) | 2000-04-28 |
FI962919A0 (fi) | 1996-07-19 |
JP3456484B2 (ja) | 2003-10-14 |
KR970700973A (ko) | 1997-02-12 |
EP0740880A1 (en) | 1996-11-06 |
GR3032001T3 (en) | 2000-03-31 |
NO314869B1 (no) | 2003-06-02 |
NO963022D0 (no) | 1996-07-19 |
NO963022L (no) | 1996-09-13 |
MX9602474A (es) | 1997-04-30 |
CN1139505A (zh) | 1997-01-01 |
US5734712A (en) | 1998-03-31 |
DE69513147T2 (de) | 2000-03-02 |
ATE186434T1 (de) | 1999-11-15 |
DE69513147D1 (de) | 1999-12-09 |
FI962919A (fi) | 1996-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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