GB817547A - Improvements in or relating to electronic selectors for telecommunications installations - Google Patents
Improvements in or relating to electronic selectors for telecommunications installationsInfo
- Publication number
- GB817547A GB817547A GB22386/57A GB2238657A GB817547A GB 817547 A GB817547 A GB 817547A GB 22386/57 A GB22386/57 A GB 22386/57A GB 2238657 A GB2238657 A GB 2238657A GB 817547 A GB817547 A GB 817547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- outlets
- outlet
- centres
- conduct
- 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
- 238000009434 installation Methods 0.000 title 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
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
- H04Q3/521—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 using semiconductors in the switching stages
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H63/00—Details of electrically-operated selector switches
- H01H63/36—Circuit arrangements for ensuring correct or desired operation and not adapted to a particular application of the selector switch
- H01H63/38—Circuit arrangements for ensuring correct or desired operation and not adapted to a particular application of the selector switch for multi-position wiper switches
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES49534A DE1028623B (de) | 1956-07-16 | 1956-07-16 | Schaltungsanordnung fuer einen elektronischen Waehler, z. B. fuer Umsteuervorgaenge in Fernmelde-, insbesondere Fernsprechanlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB817547A true GB817547A (en) | 1959-07-29 |
Family
ID=7487332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22386/57A Expired GB817547A (en) | 1956-07-16 | 1957-07-15 | Improvements in or relating to electronic selectors for telecommunications installations |
Country Status (5)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3119902A (en) * | 1958-08-15 | 1964-01-28 | Ass Elect Ind Woolwich Ltd | Telephone selector systems |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL141976B (nl) * | 1948-04-28 | Saab Scania Ab | Simulator voor het nabootsen van het vuren van wapens. | |
US2640883A (en) * | 1948-09-11 | 1953-06-02 | Hartford Nat Bank & Trust Co | Marker control arrangement for selectors |
US2763722A (en) * | 1952-05-05 | 1956-09-18 | Hartford Nat Bank & Trust Co | Busy tone circuit for automatic telephone systems |
BE526142A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-02-02 | |||
BE546282A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1955-03-25 |
-
0
- NL NL218965D patent/NL218965A/xx unknown
- DE DENDAT1074664D patent/DE1074664B/de active Pending
- NL NL112671D patent/NL112671C/xx active
-
1956
- 1956-07-16 DE DES49534A patent/DE1028623B/de active Pending
-
1957
- 1957-06-12 US US665219A patent/US3035124A/en not_active Expired - Lifetime
- 1957-07-09 CH CH353407D patent/CH353407A/de unknown
- 1957-07-15 GB GB22386/57A patent/GB817547A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3119902A (en) * | 1958-08-15 | 1964-01-28 | Ass Elect Ind Woolwich Ltd | Telephone selector systems |
Also Published As
Publication number | Publication date |
---|---|
CH353407A (de) | 1961-04-15 |
NL112671C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
US3035124A (en) | 1962-05-15 |
DE1074664B (de) | 1960-02-04 |
DE1028623B (de) | 1958-04-24 |
NL218965A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
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