GB1112098A - Improvements in or relating to telecommunications exchange systems - Google Patents
Improvements in or relating to telecommunications exchange systemsInfo
- Publication number
- GB1112098A GB1112098A GB3376566A GB3376566A GB1112098A GB 1112098 A GB1112098 A GB 1112098A GB 3376566 A GB3376566 A GB 3376566A GB 3376566 A GB3376566 A GB 3376566A GB 1112098 A GB1112098 A GB 1112098A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- pulse
- call
- line
- group
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
- H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
- H04L12/525—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques involving a stored program control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
1,112,098. Telegraphy. SIEMENS A.G. 27 July, 1966 [28 July, 1965], No. 33765/66. Heading H4P. In a teleprinter exchange of the type in which each bit marks a combination of channels in a multichannel line SV to which all subscribers are connected, the combination being unique to the called subscriber, the subscriber transmitters are in groups and are multiplexed on to the line. As shown there are two groups comprising units KS1-KS62 and KS63-KS125. When a call-up pulse on line AL reaches the last stage of either group it sends a pulse on line FL1 or FL2 to all stages in the other group so that a bit from any subscriber in that group is stored on the corresponding store NAS. If, for example, KS1 receives a bit gate a is enabled and the next call-up pulse passes through gate a to read out the bit stored in NAS and to transmit the bit on a combination of channels SV. This transmission causes AI to generate a call-up pulse which passes to the next stage. If KS2 has no bit in NAS gate u is enabled and the call-up pulse passes to the next stage KS3, and so on. The data from the subscribers are thus multiplexed on the line, the cycle time depending upon the number of subscribers who are transmitting. When the call-up pulse leaves KS62 data is read in to the stores of the other group and transmission proceeds as before.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1965S0098496 DE1274620B (en) | 1965-07-28 | 1965-07-28 | Circuit arrangement for sending out pulse-coded messages via a telecommunications switching system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1112098A true GB1112098A (en) | 1968-05-01 |
Family
ID=7521517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3376566A Expired GB1112098A (en) | 1965-07-28 | 1966-07-27 | Improvements in or relating to telecommunications exchange systems |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE684728A (en) |
DE (1) | DE1274620B (en) |
FR (1) | FR1487958A (en) |
GB (1) | GB1112098A (en) |
NL (1) | NL6610526A (en) |
SE (1) | SE307158B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4270841A (en) * | 1978-10-31 | 1981-06-02 | Research Frontiers Incorporated | Light valve containing suspension of perhalide of alkaloid acid salt |
-
1965
- 1965-07-28 DE DE1965S0098496 patent/DE1274620B/en active Pending
-
1966
- 1966-07-26 NL NL6610526A patent/NL6610526A/xx unknown
- 1966-07-27 SE SE1023266A patent/SE307158B/xx unknown
- 1966-07-27 GB GB3376566A patent/GB1112098A/en not_active Expired
- 1966-07-28 FR FR71243A patent/FR1487958A/en not_active Expired
- 1966-07-28 BE BE684728D patent/BE684728A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE684728A (en) | 1967-01-30 |
NL6610526A (en) | 1967-01-30 |
FR1487958A (en) | 1967-07-07 |
SE307158B (en) | 1968-12-23 |
DE1274620B (en) | 1968-08-08 |
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