GB650875A - Telecommunication exchange - Google Patents
Telecommunication exchangeInfo
- Publication number
- GB650875A GB650875A GB4307/47A GB430747A GB650875A GB 650875 A GB650875 A GB 650875A GB 4307/47 A GB4307/47 A GB 4307/47A GB 430747 A GB430747 A GB 430747A GB 650875 A GB650875 A GB 650875A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feb
- telecommunication exchange
- electronic means
- telecommunication
- cables
- 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
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/526—Optical switching systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
- Telephone Set Structure (AREA)
Abstract
650,875. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Feb. 14, 1947, No. 4307. Convention date, Feb. 19, 1946. Drawings to Specification. [Class 40 (iv)] A telecommunication exchange comprises electronic means responsive to selection signals on a particular channel for selecting another channel, which is called by electronically controlled ringing means, and electronic means for establishing two-way communication between the two channels. The description is identical with that of Specification 645,871, which claims other features.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US648758A US2492179A (en) | 1946-02-19 | 1946-02-19 | Ringing arrangement for electronic switching systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB650875A true GB650875A (en) | 1951-03-07 |
Family
ID=24602098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4307/47A Expired GB650875A (en) | 1946-02-19 | 1947-02-14 | Telecommunication exchange |
Country Status (5)
Country | Link |
---|---|
US (2) | US2492179A (en) |
CH (1) | CH285635A (en) |
DE (1) | DE920912C (en) |
ES (1) | ES182240A1 (en) |
GB (1) | GB650875A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR974379A (en) * | 1947-10-27 | 1951-02-21 | ||
BE497954A (en) * | 1949-09-06 | |||
US2773937A (en) * | 1949-12-24 | 1956-12-11 | Gen Dynamics Corp | Electronic signaling and switching system |
BE500226A (en) * | 1949-12-24 | |||
US2857463A (en) * | 1951-11-23 | 1958-10-21 | Gen Dynamics Corp | Telephone system |
US2872518A (en) * | 1951-11-23 | 1959-02-03 | Gen Dynamics Corp | Party line telephone system |
US2889408A (en) * | 1951-11-23 | 1959-06-02 | Gen Dynamics Corp | Telephone system |
US2832832A (en) * | 1952-12-17 | 1958-04-29 | Gen Dynamics Corp | Telephone system |
US2944112A (en) * | 1954-03-15 | 1960-07-05 | Telephony | |
US3080547A (en) * | 1958-11-03 | 1963-03-05 | Motorola Inc | Selective calling apparatus |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2214019A (en) * | 1937-10-30 | 1940-09-10 | Bell Telephone Labor Inc | Electronic switching device |
US2239825A (en) * | 1938-04-22 | 1941-04-29 | Associated Electric Lab Inc | Telephone apparatus |
US2257795A (en) * | 1939-05-27 | 1941-10-07 | Bell Telephone Labor Inc | Electron discharge apparatus and circuits |
US2241031A (en) * | 1940-01-23 | 1941-05-06 | Bell Telephone Labor Inc | Telephone system |
US2289503A (en) * | 1940-05-01 | 1942-07-14 | Bell Telephone Labor Inc | Telephone system |
US2387018A (en) * | 1942-08-05 | 1945-10-16 | Bell Lab Inc | Communication system |
US2379715A (en) * | 1942-10-09 | 1945-07-03 | Bell Telephone Labor Inc | Communication system |
-
0
- US US23418D patent/USRE23418E/en not_active Expired
-
1946
- 1946-02-19 US US648758A patent/US2492179A/en not_active Expired - Lifetime
-
1947
- 1947-02-14 GB GB4307/47A patent/GB650875A/en not_active Expired
- 1947-11-06 CH CH285635D patent/CH285635A/en unknown
-
1948
- 1948-02-10 ES ES0182240A patent/ES182240A1/en not_active Expired
-
1950
- 1950-10-01 DE DEF4327A patent/DE920912C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES182240A1 (en) | 1948-04-01 |
DE920912C (en) | 1954-12-02 |
US2492179A (en) | 1949-12-27 |
CH285635A (en) | 1952-09-15 |
USRE23418E (en) | 1951-10-16 |
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