ES8401815A1 - Procedimiento y aparato para senalizar el modo de transmision de un sistema de comunicacion. - Google Patents
Procedimiento y aparato para senalizar el modo de transmision de un sistema de comunicacion.Info
- Publication number
- ES8401815A1 ES8401815A1 ES515919A ES515919A ES8401815A1 ES 8401815 A1 ES8401815 A1 ES 8401815A1 ES 515919 A ES515919 A ES 515919A ES 515919 A ES515919 A ES 515919A ES 8401815 A1 ES8401815 A1 ES 8401815A1
- Authority
- ES
- Spain
- Prior art keywords
- current flow
- signaling
- line
- condition
- central office
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Communication Control (AREA)
Abstract
APARATO PARA SEÑALIZAR LOS MODOS OPERANTES DE UN SISTEMA DE COMUNICACIONES.COMPRENDE UN PRIMER DISPOSITIVO PARA PROPORCIONAR EN LA UNIDAD CENTRAL UNA SEÑAL DE CORRIENTE CONTINUA, C.C, PRIMERA POLARIDAD, QUE REPRESENTA UN PRIMER MODO OPERANTE; MEDIOS PARA CAMBIAR EN LA UNIDAD DEL ABONADO LA SEÑAL DE C.C DE PRIMERA POLARIDAD PARA REPRESENTAR UN CAMBIO EN EL MODO DE COMUNICACION; UN SEGUNDO DISPOSITIVO PARA PROPORCIONAR EN LA UNIDAD CENTRAL, EN RESPUESTA A UNA INTERRUPCION DE LA SEÑAL DE PRIMERA POLARIDAD, OTRA SEÑAL DE SEGUNDA POLARIDAD, QUE REPRESENTAUN SEGUNDO MODO OPERANTE; MEDIOS QUE RESPONDEN A UNA SEÑAL DE CONTROL PARA PROPORCIONAR UNA SEÑAL DE PRIMERA O SEGUNDA POLARIDAD POR EL MEDIO DE TRANSMISION PARA REPRESENTAR UN PRIMER O SEGUNDO MODO DE COMUNICACION; MEDIOS DE CONTROL PARA GENERAR LA SEÑAL DE CONTROL EN RESPUESTA A UNA INTERRUPCION EN LA SEÑAL DE C.C EN EL MEDIO DE TRANSMISION; MEDIOS PARA COMPARAR EL MODO DE COMUNICACION DE UNA UNIDAD DISTANTE CONECTADA AL APARATO POR UN SEGUNDOMEDIO DE TRANSMISION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/305,124 US4421951A (en) | 1981-09-24 | 1981-09-24 | Method and arrangement for signaling the transmission mode of a communication system |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8401815A1 true ES8401815A1 (es) | 1983-12-16 |
ES515919A0 ES515919A0 (es) | 1983-12-16 |
Family
ID=23179437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES515919A Granted ES515919A0 (es) | 1981-09-24 | 1982-09-23 | Procedimiento y aparato para senalizar el modo de transmision de un sistema de comunicacion. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4421951A (es) |
EP (1) | EP0088786B1 (es) |
JP (1) | JPS58501532A (es) |
KR (1) | KR880000961B1 (es) |
CA (1) | CA1177984A (es) |
DE (1) | DE3267704D1 (es) |
ES (1) | ES515919A0 (es) |
GB (1) | GB2130845B (es) |
WO (1) | WO1983001169A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1175964A (en) * | 1982-02-22 | 1984-10-09 | John A. Barsellotti | Two wire voice and data subscriber loop |
US4685123A (en) * | 1985-09-13 | 1987-08-04 | American Telephone And Telegraph Company | Communication system having voice and data capability |
JPS6390263A (ja) * | 1986-10-02 | 1988-04-21 | Canon Inc | パ−ソナルコンピユ−タ |
US4884667A (en) * | 1987-07-22 | 1989-12-05 | Isuzu Motors Ltd. | Automatic change gear control means |
US5388146A (en) * | 1991-11-12 | 1995-02-07 | Microlog Corporation | Automated telephone system using multiple languages |
US5408524A (en) * | 1993-03-29 | 1995-04-18 | Xel Communications, Inc. | Answer supervision over pulse code modulated carrier system and method therefore |
US6813353B1 (en) * | 2000-04-12 | 2004-11-02 | Adtran, Inc. | Redundant operation of ring voltage generators utilizing voltage bus segmentation for fault isolation |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1193109B (de) * | 1964-05-20 | 1965-05-20 | Standard Elektrik Lorenz Ag | Unsymmetrisches Gleichstrom-Signalverfahren ueber zweiadrige Fernmelde-, insbesondere Fernsprechleitungen und Anordnung zur Durchfuehrung des Verfahrens |
US3505475A (en) * | 1966-07-20 | 1970-04-07 | Bell Telephone Labor Inc | Data set for polar current loop signaling |
US3566032A (en) * | 1968-12-23 | 1971-02-23 | Bell Telephone Labor Inc | Direct-current data set arranged for polar signaling and full duplex operation |
SU440805A1 (ru) * | 1970-01-12 | 1974-08-25 | Предприятие П/Я А-1221 | Устройство дл спаренного включени телефонного и телеграфного аппаратов |
DE2320092C2 (de) * | 1973-04-19 | 1975-02-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung für Fernmeldeanlagen, in denen Verbindungswege für verschiedene Arten der Nachrichtenübermittlung benutzbar sind Siemens AG, 1000 Berlin und 8000 München |
JPS5075707A (es) * | 1973-11-07 | 1975-06-21 | ||
US3908086A (en) * | 1974-06-03 | 1975-09-23 | Redactron Corp | Method for establishing a data communication connection between two full duplex modems |
JPS5555655A (en) * | 1978-10-20 | 1980-04-23 | Nippon Telegr & Teleph Corp <Ntt> | Selection unit for telephone line |
JPS5555654A (en) * | 1978-10-20 | 1980-04-23 | Nippon Telegr & Teleph Corp <Ntt> | Selection unit for telephone line |
US4306116A (en) * | 1979-12-03 | 1981-12-15 | Intertel, Inc. | Communications unit for voice and data |
-
1981
- 1981-09-24 US US06/305,124 patent/US4421951A/en not_active Expired - Fee Related
-
1982
- 1982-08-30 JP JP57502950A patent/JPS58501532A/ja active Pending
- 1982-08-30 EP EP82902873A patent/EP0088786B1/en not_active Expired
- 1982-08-30 DE DE8282902873T patent/DE3267704D1/de not_active Expired
- 1982-08-30 WO PCT/US1982/001172 patent/WO1983001169A1/en active IP Right Grant
- 1982-08-31 CA CA000410507A patent/CA1177984A/en not_active Expired
- 1982-09-23 KR KR8204293A patent/KR880000961B1/ko active
- 1982-09-23 ES ES515919A patent/ES515919A0/es active Granted
- 1982-09-23 GB GB08227185A patent/GB2130845B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0088786B1 (en) | 1985-11-27 |
ES515919A0 (es) | 1983-12-16 |
DE3267704D1 (en) | 1986-01-09 |
EP0088786A1 (en) | 1983-09-21 |
EP0088786A4 (en) | 1984-02-07 |
US4421951A (en) | 1983-12-20 |
KR840001976A (ko) | 1984-06-07 |
WO1983001169A1 (en) | 1983-03-31 |
GB2130845B (en) | 1985-10-09 |
GB2130845A (en) | 1984-06-06 |
KR880000961B1 (ko) | 1988-06-04 |
CA1177984A (en) | 1984-11-13 |
JPS58501532A (ja) | 1983-09-08 |
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