ES493899A0 - Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico - Google Patents
Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonicoInfo
- Publication number
- ES493899A0 ES493899A0 ES493899A ES493899A ES493899A0 ES 493899 A0 ES493899 A0 ES 493899A0 ES 493899 A ES493899 A ES 493899A ES 493899 A ES493899 A ES 493899A ES 493899 A0 ES493899 A0 ES 493899A0
- Authority
- ES
- Spain
- Prior art keywords
- telephone line
- demodulator
- modulator
- transmission device
- connection device
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title abstract 5
- 238000009434 installation Methods 0.000 title 1
- 230000001105 regulatory effect Effects 0.000 abstract 3
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Telephone Function (AREA)
- Communication Control (AREA)
- Communication Cables (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2931464A DE2931464C2 (de) | 1979-08-02 | 1979-08-02 | Schaltungsanordnung zum Anschließen einer Übertragungseinrichtung eines Modems an eine Fernsprechleitung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES493899A0 true ES493899A0 (es) | 1981-04-01 |
| ES8104693A1 ES8104693A1 (es) | 1981-04-01 |
Family
ID=6077507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES493899A Expired ES8104693A1 (es) | 1979-08-02 | 1980-07-31 | Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0023692B1 (es) |
| AT (1) | ATE4015T1 (es) |
| DE (1) | DE2931464C2 (es) |
| DK (1) | DK332380A (es) |
| ES (1) | ES8104693A1 (es) |
| FI (1) | FI802427A7 (es) |
| NO (1) | NO147579C (es) |
| PT (1) | PT71639B (es) |
| YU (1) | YU194780A (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122843B (en) * | 1982-03-30 | 1985-10-30 | Guestel Limited | Telephone interface unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1472442A (en) * | 1974-07-30 | 1977-05-04 | Standard Telephones Cables Ltd | Power supply circuits |
| DE2814837C2 (de) * | 1978-04-06 | 1980-01-10 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Datenmodem, insbesondere für Bildschirmtextbetrieb |
-
1979
- 1979-08-02 DE DE2931464A patent/DE2931464C2/de not_active Expired
-
1980
- 1980-07-25 NO NO802248A patent/NO147579C/no unknown
- 1980-07-28 AT AT80104431T patent/ATE4015T1/de not_active IP Right Cessation
- 1980-07-28 EP EP80104431A patent/EP0023692B1/de not_active Expired
- 1980-07-31 ES ES493899A patent/ES8104693A1/es not_active Expired
- 1980-08-01 DK DK332380A patent/DK332380A/da not_active Application Discontinuation
- 1980-08-01 YU YU01947/80A patent/YU194780A/xx unknown
- 1980-08-01 FI FI802427A patent/FI802427A7/fi not_active Application Discontinuation
- 1980-08-01 PT PT71639A patent/PT71639B/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PT71639B (de) | 1981-06-26 |
| YU194780A (en) | 1982-10-31 |
| DK332380A (da) | 1981-02-03 |
| DE2931464B1 (de) | 1981-01-22 |
| NO147579C (no) | 1983-05-04 |
| FI802427A7 (fi) | 1981-01-01 |
| NO802248L (no) | 1981-02-03 |
| EP0023692B1 (de) | 1983-06-29 |
| ATE4015T1 (de) | 1983-07-15 |
| PT71639A (de) | 1980-09-01 |
| DE2931464C2 (de) | 1981-10-08 |
| NO147579B (no) | 1983-01-24 |
| EP0023692A1 (de) | 1981-02-11 |
| ES8104693A1 (es) | 1981-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES8401698A1 (es) | Perfeccionamientos en un circuito de servicio para una linea telefonica local | |
| ES2085624T3 (es) | Dispositivo de control para un dispositivo de mando. | |
| TW264598B (es) | ||
| ES493899A0 (es) | Dispositivo de conexion para una instalacion de transmision de un modulador-demodulador a un circuito telefonico | |
| DE3172701D1 (en) | Digital frequency receiver | |
| FR2526251B1 (fr) | Dispositif de multiplexage numerique, notamment pour reseau telephonique numerique | |
| DK398883A (da) | System til overfoering af informationer | |
| JPS55117371A (en) | Transmission method for analog telephone signal | |
| ATE4T1 (de) | Schaltungsanordnung zur erdfreien uebertragung von signalen ueber trennstellen in fernmeldeanlagen | |
| JPS5636243A (en) | Photosignal system | |
| JPS5742248A (en) | Switching device for communication system | |
| FR2602385B1 (fr) | Dispositif de signalisation de message pour installation telephonique a postes analogiques et poste equipe a cet effet | |
| JPS5590172A (en) | Multiplex communication system for sound signal and data for telephone call or signal for picture communication of electric communication circuit for narrow-band transmission | |
| JPS5623066A (en) | Control system for modulation and demodulation unit | |
| ATE13957T1 (de) | Parallelbetrieb von telephongraeten auf einer digitalen teilnehmerleitung. | |
| JPS57103445A (en) | Optical communication device | |
| JPS57133757A (en) | Howler tone transmission system in time division electronic exchanger | |
| JPS52144201A (en) | Data communication system | |
| DE3168956D1 (en) | Circuit for deriving a control signal to permit or to block the emission of tones by a tone cell circuit for telecommunication systems | |
| JPS5552651A (en) | Modulator and demodulator | |
| JPS6489653A (en) | Communication system | |
| JPS57190437A (en) | Carrier transmitting device | |
| JPS5566161A (en) | Two-wire system full double digital transmission device | |
| JPS57162845A (en) | Two-wire type subscriber line transmission system | |
| ES291557U (es) | Dispositivo de seguridad para telefonos |