GB1485630A - Telephone exchanges - Google Patents
Telephone exchangesInfo
- Publication number
- GB1485630A GB1485630A GB5532373A GB5532373A GB1485630A GB 1485630 A GB1485630 A GB 1485630A GB 5532373 A GB5532373 A GB 5532373A GB 5532373 A GB5532373 A GB 5532373A GB 1485630 A GB1485630 A GB 1485630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- register
- call
- control
- processor
- free
- 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
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
- H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
Abstract
1485630 Automatic exchange systems STANDARD TELEPHONES & CABLES Ltd 19 Nov 1974 [29 Nov 1973] 55323/73 Heading H4K A telecommunication exchange includes a plurality of control processors each of which has access to an individual bank of registers, and means to allot a control processor to deal with the next call, each processor being arranged when it has accepted that call to check to see that it has an available free register suitable for that call and if not to transfer control of that call to another processor having available a free register suitable for the call. As shown the preallotter allots one control processor M.C.V. to be used for the next call. When that call arises it is detected by the scanner and accepted by the allotted M.C.V. That M.C.V. determines the type of register (dial pulse or multi-frequency) required and if such a register is free and connectable to the calling line or junction. If no useable register accessible to that M.C.V. is available, the M.C.V. searches in a cyclic store for free useable register, selects such a register, connects that register to the calling line or junction and transfers control of the connection to the M.C.V. which has access to that register. Transfer of connection data may take place via an exchange management processor as shown or any other "inter-control-unit" arrangement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5532373A GB1485630A (en) | 1974-11-19 | 1974-11-19 | Telephone exchanges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5532373A GB1485630A (en) | 1974-11-19 | 1974-11-19 | Telephone exchanges |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1485630A true GB1485630A (en) | 1977-09-14 |
Family
ID=10473574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5532373A Expired GB1485630A (en) | 1974-11-19 | 1974-11-19 | Telephone exchanges |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1485630A (en) |
-
1974
- 1974-11-19 GB GB5532373A patent/GB1485630A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES297704A1 (en) | Apparatus for connecting a multichannel data processor with a plurality of telephone lines | |
GB1446609A (en) | Time division multiplexed digital switching apparatus | |
GB990823A (en) | Time division multiplex telecommunication exchange | |
GB953895A (en) | Electronic switching telephone system | |
GB1234419A (en) | ||
US3691301A (en) | Switching system arranged for time restricted flat rate station-to-station toll calling | |
GB1472924A (en) | Telephone call simulator | |
US3363063A (en) | Circuit arrangement which enables subscriber controlled special service features within a switching system at a future predetermined time | |
EP0121237A3 (en) | Circuit arrangement for telecommunication installations, especially for telephone exchanges comprising information processors and devices for overload control | |
GB1485630A (en) | Telephone exchanges | |
US3576399A (en) | Scanning means for central-controlled switching systems | |
JPS5541051A (en) | Identification system for outgoing subscriber | |
GB1162484A (en) | Unit for Selective Blocking of Subscribers for Telephone Exchanges. | |
US3579254A (en) | Calling subscriber party line identification circuit | |
US3627954A (en) | Call-signaling processor in a telephone-switching system | |
GB1380090A (en) | Time-division switching exchange | |
GB1118512A (en) | Improvements in or relating to communication systems | |
JPS5480607A (en) | Decentralized control system of automatic exchanger | |
JPS55143858A (en) | Information guide system | |
ES374652A1 (en) | Accounting system for telephonic exchanges | |
GB804042A (en) | Improvements in or relating to telephone systems | |
SE317410B (en) | ||
GB1084099A (en) | ||
GB1485629A (en) | Telecommunication switching systems | |
US3992592A (en) | Scanner-marker arrangement for telephone system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |