GB1167650A - Improvements in or relating to Telecommunications Exchange Systems - Google Patents
Improvements in or relating to Telecommunications Exchange SystemsInfo
- Publication number
- GB1167650A GB1167650A GB2455867A GB2455867A GB1167650A GB 1167650 A GB1167650 A GB 1167650A GB 2455867 A GB2455867 A GB 2455867A GB 2455867 A GB2455867 A GB 2455867A GB 1167650 A GB1167650 A GB 1167650A
- Authority
- GB
- United Kingdom
- Prior art keywords
- links
- crosspoints
- updated
- memory
- contents
- 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
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Exchange Systems With Centralized Control (AREA)
Abstract
1,167,650. Automatic exchange systems. SIEMENS A.G. 26 May, 1967 [27 May, 1966], No. 24558/67. Heading H4K. In an exchange system in which the busy/free conditions of the crosspoints or links in the exchange's switching network are stored in a central memory (memory map), the contents of the latter are updated only in response to actual operations in the network and not merely in response to the selection of crosspoints (route finding). As a variation, the contents may be updated immediately after a selection but they are then revised in the light of what actually occurs when an attempt is made to operate the selected crosspoints. If there is any faulty operation and after the memory has been correspondingly updated, a new attempt at setting up a connection is made. After a path has been selected, its constituent links are tested before the path is cut-through. The links may be tested individually or simultaneously using a magnetic core array whose windings are linked on the one hand to single-shot multivibrators and on the other, possibly via decoupling diodes, to the links.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1966S0104047 DE1277363B (en) | 1966-05-27 | 1966-05-27 | Method for setting an allocation memory for telecommunications, in particular telephone switching systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1167650A true GB1167650A (en) | 1969-10-15 |
Family
ID=7525596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2455867A Expired GB1167650A (en) | 1966-05-27 | 1967-05-26 | Improvements in or relating to Telecommunications Exchange Systems |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT275614B (en) |
| BE (1) | BE699067A (en) |
| CH (1) | CH452009A (en) |
| DE (1) | DE1277363B (en) |
| GB (1) | GB1167650A (en) |
| NL (1) | NL6704907A (en) |
| SE (1) | SE336380B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE627298A (en) * | 1962-01-19 | |||
| GB1095574A (en) * | 1964-07-18 |
-
1966
- 1966-05-27 DE DE1966S0104047 patent/DE1277363B/en not_active Withdrawn
-
1967
- 1967-04-06 NL NL6704907A patent/NL6704907A/xx unknown
- 1967-05-25 CH CH739167A patent/CH452009A/en unknown
- 1967-05-25 SE SE739267A patent/SE336380B/xx unknown
- 1967-05-26 BE BE699067D patent/BE699067A/xx unknown
- 1967-05-26 GB GB2455867A patent/GB1167650A/en not_active Expired
- 1967-05-26 AT AT494267A patent/AT275614B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| AT275614B (en) | 1969-10-27 |
| NL6704907A (en) | 1967-11-28 |
| SE336380B (en) | 1971-07-05 |
| DE1277363B (en) | 1968-09-12 |
| BE699067A (en) | 1967-11-27 |
| CH452009A (en) | 1968-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |