GB1417037A - Production of switching order information for transmission of pcm words - Google Patents
Production of switching order information for transmission of pcm wordsInfo
- Publication number
- GB1417037A GB1417037A GB635073A GB635073A GB1417037A GB 1417037 A GB1417037 A GB 1417037A GB 635073 A GB635073 A GB 635073A GB 635073 A GB635073 A GB 635073A GB 1417037 A GB1417037 A GB 1417037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- event
- calling
- computer
- last
- data
- 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
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Time-Division Multiplex Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Control Of Transmission Device (AREA)
Abstract
1417037 Automatic exchange systems TELEFONAKTIEBOLAGET L M ERICSSON 8 Feb 1973 [8 Feb 1972 (5)] 6350/73 Heading H4K In a TDM exchange incorporating a timespace-time network through which PCM channels are switched preferably in a parallel format, signal words pertaining to PCM channels are transferred through the space stage to a last-look memory so as to enlist a computer in the event of any changes. The computer seizes a control circuit associated with the space switch and, in the event of a calling condition, instructs it to find a free time slot useable on the incoming and outgoing highways pertaining to the calling and called parties. The slot identity and calling/ called party data is then despatched via the space switch to control memories in the first and last time stages so as to permit the connection to be set up. All the data is also stored in the last-look memory. In the event of a callrelease condition, the computer instructs the control circuit to cancel the data in the various memories. The particular description is identical to that in Specifications 1,417,033, 1,417,034, 1,417,035 and 1,417,036.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE01446/72A SE353996B (en) | 1972-02-08 | 1972-02-08 | |
SE144472A SE351543B (en) | 1972-02-08 | 1972-02-08 | |
SE01443/72A SE351542B (en) | 1972-02-08 | 1972-02-08 | |
SE01442/72A SE351541B (en) | 1972-02-08 | 1972-02-08 | |
SE01445/72A SE353639B (en) | 1972-02-08 | 1972-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1417037A true GB1417037A (en) | 1975-12-10 |
Family
ID=27532698
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB634873A Expired GB1417035A (en) | 1972-02-08 | 1973-02-08 | Allotting time slots and adding addresses to pcm words |
GB635073A Expired GB1417037A (en) | 1972-02-08 | 1973-02-08 | Production of switching order information for transmission of pcm words |
GB634673A Expired GB1417033A (en) | 1972-02-08 | 1973-02-08 | Selecting of a time slot for transmission of pcm words |
GB634973A Expired GB1417036A (en) | 1972-02-08 | 1973-02-08 | Operating file gates in an exchange for pcm words |
GB634773A Expired GB1417034A (en) | 1972-02-08 | 1973-02-08 | Transfer of switching order information for transmission of pcm words |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB634873A Expired GB1417035A (en) | 1972-02-08 | 1973-02-08 | Allotting time slots and adding addresses to pcm words |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB634673A Expired GB1417033A (en) | 1972-02-08 | 1973-02-08 | Selecting of a time slot for transmission of pcm words |
GB634973A Expired GB1417036A (en) | 1972-02-08 | 1973-02-08 | Operating file gates in an exchange for pcm words |
GB634773A Expired GB1417034A (en) | 1972-02-08 | 1973-02-08 | Transfer of switching order information for transmission of pcm words |
Country Status (1)
Country | Link |
---|---|
GB (5) | GB1417035A (en) |
-
1973
- 1973-02-08 GB GB634873A patent/GB1417035A/en not_active Expired
- 1973-02-08 GB GB635073A patent/GB1417037A/en not_active Expired
- 1973-02-08 GB GB634673A patent/GB1417033A/en not_active Expired
- 1973-02-08 GB GB634973A patent/GB1417036A/en not_active Expired
- 1973-02-08 GB GB634773A patent/GB1417034A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1417034A (en) | 1975-12-10 |
GB1417035A (en) | 1975-12-10 |
GB1417033A (en) | 1975-12-10 |
GB1417036A (en) | 1975-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |