GB1386979A - Multiplex telecommunications systems - Google Patents
Multiplex telecommunications systemsInfo
- Publication number
- GB1386979A GB1386979A GB4344372A GB4344372A GB1386979A GB 1386979 A GB1386979 A GB 1386979A GB 4344372 A GB4344372 A GB 4344372A GB 4344372 A GB4344372 A GB 4344372A GB 1386979 A GB1386979 A GB 1386979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- signals
- multiplex
- information
- sept
- 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
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
- H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
1386979 Multiplex pulse signalling SIEMENS AG 20 Sept 1972 [24 Sept 1971] 43443/72 Heading H4L In a telecommunications system in which information and corresponding synchronizing signals are transmitted between two multiplex devices, the information signals being transmitted in channels via a multiplex telecommunication line, an additional line which is already being used for signal transmission between the multiplex devices has at least one frequency range which is utilized for the transmission of the sychronizing signals. As described, two P.C.M. t.d.m. exchanges are connected together via a line carrying t.d.m. information signals. The synchronizing circuits of each exchange are connected via respective filters to a further line, the filters allowing other signals on the line to pass along the line and enabling an unused part of the available frequency range to be utilized.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712147864 DE2147864C3 (en) | 1971-09-24 | Method and circuit arrangement for the transmission of synchronization signals between multiplex devices operating according to the time division multiplex or frequency division multiplex principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1386979A true GB1386979A (en) | 1975-03-12 |
Family
ID=5820525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4344372A Expired GB1386979A (en) | 1971-09-24 | 1972-09-20 | Multiplex telecommunications systems |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT330254B (en) |
| BE (1) | BE789178A (en) |
| CH (1) | CH556119A (en) |
| DK (1) | DK132920C (en) |
| FR (1) | FR2154168A5 (en) |
| GB (1) | GB1386979A (en) |
| IT (1) | IT967739B (en) |
| LU (1) | LU66143A1 (en) |
| NL (1) | NL7212560A (en) |
| NO (1) | NO140912C (en) |
-
0
- BE BE789178D patent/BE789178A/en unknown
-
1972
- 1972-08-24 CH CH1251272A patent/CH556119A/en not_active IP Right Cessation
- 1972-09-01 NO NO310872A patent/NO140912C/en unknown
- 1972-09-13 AT AT786172A patent/AT330254B/en not_active IP Right Cessation
- 1972-09-15 NL NL7212560A patent/NL7212560A/xx not_active Application Discontinuation
- 1972-09-20 GB GB4344372A patent/GB1386979A/en not_active Expired
- 1972-09-21 FR FR7233413A patent/FR2154168A5/fr not_active Expired
- 1972-09-22 IT IT2952072A patent/IT967739B/en active
- 1972-09-22 DK DK469372A patent/DK132920C/en active
- 1972-09-22 LU LU66143D patent/LU66143A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE789178A (en) | 1973-03-22 |
| CH556119A (en) | 1974-11-15 |
| NL7212560A (en) | 1973-03-27 |
| DK132920B (en) | 1976-02-23 |
| IT967739B (en) | 1974-03-11 |
| DK132920C (en) | 1976-07-19 |
| AT330254B (en) | 1976-06-25 |
| FR2154168A5 (en) | 1973-05-04 |
| DE2147864B2 (en) | 1975-10-30 |
| DE2147864A1 (en) | 1973-03-29 |
| LU66143A1 (en) | 1973-01-17 |
| NO140912B (en) | 1979-08-27 |
| ATA786172A (en) | 1975-09-15 |
| NO140912C (en) | 1979-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1539555A (en) | Communication signal transmission line loss compensating system | |
| GB844735A (en) | Improvements in or relating to time division communication systems | |
| GB1359700A (en) | Simultaneous digital transmission in both directions over one line | |
| GB1521340A (en) | Digital data communication network | |
| GB1049412A (en) | Improvements in or relating to electric circuits for use in signalling systems | |
| GB1345537A (en) | Electrical signal combining and separating arrangements | |
| GB2126842B (en) | Improvements in or relating to digital electronic switching systems | |
| JPS52115606A (en) | Digital signal communication system between two digital systems | |
| GB1386979A (en) | Multiplex telecommunications systems | |
| GB1453496A (en) | Serial intercommunication system with a centrla control | |
| GB1023662A (en) | Improvements in or relating to two-wire carrier multichannel communication systems | |
| GB1333951A (en) | Electrical supervisory system | |
| GB1217864A (en) | Improvements in or relating to telecommunications systems | |
| GB759692A (en) | Improvements in or relating to automatic telephone systems | |
| GB1036009A (en) | Improvements in or relating to signal transmission | |
| JPS52120709A (en) | Common line signal system | |
| SE455911B (en) | Data signal coupling over telephone line | |
| GB725396A (en) | Method and means for reducing crosstalk between pulse channels in multichannel pulse communication systems | |
| GB1252325A (en) | ||
| GB1138259A (en) | Multi-frequency code signalling method | |
| GB1059795A (en) | Improvements in or relating to electrical carrier transmission systems | |
| GB1396228A (en) | Time multiplex telecommunication exchanges | |
| CA966236A (en) | Transmission of supervisory signals through a tdm telegraph system | |
| GB1062452A (en) | Installation for the transmission of information | |
| GB986716A (en) | Regenerative-repeating system in pulse-code-modulation distribution-transmission communication systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |