ES2088490T3 - Circuito de deteccion de llamadas telefonicas y metodo para el acceso remoto y comprobacion de un telefono. - Google Patents
Circuito de deteccion de llamadas telefonicas y metodo para el acceso remoto y comprobacion de un telefono.Info
- Publication number
- ES2088490T3 ES2088490T3 ES91905648T ES91905648T ES2088490T3 ES 2088490 T3 ES2088490 T3 ES 2088490T3 ES 91905648 T ES91905648 T ES 91905648T ES 91905648 T ES91905648 T ES 91905648T ES 2088490 T3 ES2088490 T3 ES 2088490T3
- Authority
- ES
- Spain
- Prior art keywords
- telephone
- ring
- signal
- relay
- excitation signal
- 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
- 238000001514 detection method Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000012795 verification Methods 0.000 title 1
- 230000005284 excitation Effects 0.000 abstract 4
- 238000004353 relayed correlation spectroscopy Methods 0.000 abstract 4
- 239000003990 capacitor Substances 0.000 abstract 1
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
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
- H04M3/248—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for metering arrangements or prepayment telephone systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
- Selective Calling Equipment (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
SE SUMINISTRA UN CIRCUITO TELEFONICO PARA DISTINGUIR ENTRE UNA LLAMADA DE TELEFONO NORMAL DE ENTRADA Y UNA LLAMADA DE TELEFONO DE PRUEBA. UNA CONEXION EN SERIE DE UN CONDENSADOR (C1), UN TIMBRE (2) Y UN RELE (13) SE DISPONE A LO LARGO DE UN PAR DE LINEA TELEFONICA (1). EL RELE (13) ESTA NORMALMENTE ABIERTO DE FORMA QUE UNA SEÑAL PARA EL TIMBRE QUE APAREZCA A LO LARGO DEL PAR DE LINEA TELEFONICA (1) NO CAUSE QUE SUENE EL TIMBRE (2). LA SEÑAL DE EXCITACION DEL TIMBRE SE MIDE MEDIANTE UN DETECTOR DE SEÑAL (15) QUE SUMINISTRA UNA SEÑAL DE SALIDA A UN PROCESADOR (6). SI LA SEÑAL DE EXCITACION DEL TIMBRE ESTA PRESENTE DURANTE MAS DE UN TIEMPO PREDETERMINADO, TAL COMO TRES SEGUNDOS, EL RELE (13) SE CIERRA, MEDIANTE LO CUAL SE HACE QUE EL TIMBRE (2) SUENE. CUANDO EL TELEFONO ES INTERROGADO DESDE UNA ESTACION CENTRAL PARA EXPONERLO A UNA RUTINA DE AUTOCOMPROBACION, SE USA UNA SEÑAL DE EXCITACION DEL TIMBRE QUE CONSTA DE UNA SERIE DE TRES SEÑALES CADA UNA DE ELLAS DE UNA DURACION MENOR QUE EL TIEMPOPREDETERMINADO. CONSECUENTEMENTE, CUANDO SE RECIBE DICHA SEÑAL DE EXCITACION DEL TIMBRE, EL RELE (13) PERMANECE ABIERTO, Y NO HAY NINGUNA SEÑAL AUDIBLE. EL SISTEMA HACE POSIBLE DE ESTA FORMA QUE SE REALICE UNA RUTINA DE COMPROBACION DEL TELEFONO SIN PROVOCAR QUE EL TELEFONO SUENE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9005874A GB2242101B (en) | 1990-03-15 | 1990-03-15 | Telephone signalling |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2088490T3 true ES2088490T3 (es) | 1996-08-16 |
Family
ID=10672694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91905648T Expired - Lifetime ES2088490T3 (es) | 1990-03-15 | 1991-03-15 | Circuito de deteccion de llamadas telefonicas y metodo para el acceso remoto y comprobacion de un telefono. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5369690A (es) |
EP (1) | EP0519963B1 (es) |
JP (1) | JPH05505079A (es) |
AT (1) | ATE139878T1 (es) |
AU (1) | AU7449991A (es) |
CA (1) | CA2077747A1 (es) |
DE (1) | DE69120528T2 (es) |
ES (1) | ES2088490T3 (es) |
GB (1) | GB2242101B (es) |
WO (1) | WO1991014330A1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5073919A (en) * | 1990-10-10 | 1991-12-17 | Teradyne, Inc. | Automatically testing telephone lines |
US5629693A (en) * | 1993-11-24 | 1997-05-13 | Trimble Navigation Limited | Clandestine location reporting by a missing vehicle |
US5687214A (en) * | 1994-12-14 | 1997-11-11 | Lucent Technologies Inc. | Method and apparatus for remote maintenance procedures |
US8466795B2 (en) | 1997-01-21 | 2013-06-18 | Pragmatus Mobile LLC | Personal security and tracking system |
US6700963B1 (en) | 1998-04-08 | 2004-03-02 | Worldcom, Inc. | System and method therefor of preventing fraud on pay phone credit/debit calling card authorization |
US6275571B1 (en) * | 1998-06-05 | 2001-08-14 | Lucent Technologies Inc. | System for direct suppressed ringing access of subscriber lines |
US6263055B1 (en) * | 1998-09-09 | 2001-07-17 | Lucent Technologies Inc. | System for suppressed ringing access of subscriber lines to identify usage anomalies of customer premise equipment connected thereto |
US6675002B1 (en) * | 1999-08-27 | 2004-01-06 | G. Jack Lipovski | System and method for automatically muting cellular telephone devices in noise sensitive areas |
US6278768B1 (en) * | 2000-02-08 | 2001-08-21 | Steven L. H. Klein | Portable fixture for simulating and testing payphones |
US11033254B2 (en) * | 2015-06-26 | 2021-06-15 | Koninklijke Philips N.V. | Image guidance system |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3496300A (en) * | 1967-06-28 | 1970-02-17 | Bell Telephone Labor Inc | Remote test arrangement for coin telephones |
FR2177236A5 (es) * | 1972-03-21 | 1973-11-02 | Socotel | |
US4126762A (en) * | 1976-05-04 | 1978-11-21 | Martin John R | Method and system for accumulating data over nondedicated telephone lines |
US4039768A (en) * | 1976-05-26 | 1977-08-02 | Maley James B O | Pay telephone station monitor system |
GB1594931A (en) * | 1977-11-04 | 1981-08-05 | Howling R J | Telephone operated switching device |
US4355205A (en) * | 1980-07-24 | 1982-10-19 | Frank E. Lowe | Telemetering system |
GB2116807B (en) * | 1982-03-03 | 1985-10-30 | John Roger Kerfoot Hughes | Remote switching unit |
EP0091267B1 (en) * | 1982-04-05 | 1988-01-07 | THE GENERAL ELECTRIC COMPANY, p.l.c. | Telecommunication system loop-back unit |
GB2149616B (en) * | 1983-11-10 | 1987-10-07 | Standard Telephones Cables Ltd | Testing telephone lines |
US4567325A (en) * | 1983-12-30 | 1986-01-28 | At&T Technologies Inc. | Controller for a coin telephone set |
JPS6192069A (ja) * | 1984-10-12 | 1986-05-10 | Tamura Electric Works Ltd | 公衆電話機 |
GB2176639B (en) * | 1985-05-31 | 1988-11-23 | Mars Inc | Data acquisition system |
GB2176970B (en) * | 1985-06-20 | 1989-07-19 | Stc Plc | Testing telephone lines |
DE3527827A1 (de) * | 1985-08-02 | 1987-02-05 | Standard Elektrik Lorenz Ag | Einrichtung zur abfrage von zustandsmeldungen eines muenzfernsprechers |
US4686696A (en) * | 1985-12-02 | 1987-08-11 | Keptel, Inc. | Transmission line signal sensing circuit employing means for conserving power, especially for use with a telephone disconnect circuit, and associated method |
US4827501A (en) * | 1986-09-18 | 1989-05-02 | American Telephone And Telegraph Company, At&T Information Systems | Telephone call screening apparatus |
JPS6469154A (en) * | 1987-09-10 | 1989-03-15 | Tamura Electric Works Ltd | Public telephone set |
US4845741A (en) * | 1988-04-27 | 1989-07-04 | Control Data Corporation | Modem ringing supression circuit |
US4995109A (en) * | 1989-05-24 | 1991-02-19 | Oki Electric Industry Co., Ltd. | Communication with a non-telephone terminal via a telephone switching network using two consecutive calls |
-
1990
- 1990-03-15 GB GB9005874A patent/GB2242101B/en not_active Expired - Fee Related
-
1991
- 1991-03-15 WO PCT/GB1991/000409 patent/WO1991014330A1/en active IP Right Grant
- 1991-03-15 AU AU74499/91A patent/AU7449991A/en not_active Abandoned
- 1991-03-15 AT AT91905648T patent/ATE139878T1/de active
- 1991-03-15 US US07/927,274 patent/US5369690A/en not_active Expired - Fee Related
- 1991-03-15 ES ES91905648T patent/ES2088490T3/es not_active Expired - Lifetime
- 1991-03-15 EP EP91905648A patent/EP0519963B1/en not_active Expired - Lifetime
- 1991-03-15 CA CA002077747A patent/CA2077747A1/en not_active Abandoned
- 1991-03-15 JP JP3505423A patent/JPH05505079A/ja active Pending
- 1991-03-15 DE DE69120528T patent/DE69120528T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2077747A1 (en) | 1991-09-16 |
EP0519963B1 (en) | 1996-06-26 |
GB2242101A (en) | 1991-09-18 |
WO1991014330A1 (en) | 1991-09-19 |
DE69120528T2 (de) | 1997-01-23 |
DE69120528D1 (de) | 1996-08-01 |
GB9005874D0 (en) | 1990-05-09 |
GB2242101B (en) | 1994-08-31 |
ATE139878T1 (de) | 1996-07-15 |
EP0519963A1 (en) | 1992-12-30 |
AU7449991A (en) | 1991-10-10 |
JPH05505079A (ja) | 1993-07-29 |
US5369690A (en) | 1994-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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