GB644571A - Telecommunication exchange - Google Patents

Telecommunication exchange

Info

Publication number: GB644571A
Authority: GB; United Kingdom
Prior art keywords: pulses; valve; local oscillator; wire; lock
Prior art date: 1945-11-14
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

Application number

GB32708/46A

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

STC PLC

Original Assignee

Standard Telephone and Cables PLC

Priority date (The priority date 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 date listed.)

1945-11-14

Filing date

1946-11-04

Publication date

1950-10-11

1946-11-04 Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC

1950-10-11 Publication of GB644571A publication Critical patent/GB644571A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J7/00—Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels
- H04J7/02—Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels in which the polarity of the amplitude is characteristic
- 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
- 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

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Devices For Supply Of Signal Current (AREA)

GB32708/46A 1945-11-14 1946-11-04 Telecommunication exchange Expired GB644571A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US644571XA	1945-11-14	1945-11-14

Publications (1)

Publication Number	Publication Date
GB644571A true GB644571A (en)	1950-10-11

Family

ID=22056112

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB32708/46A Expired GB644571A (en)	1945-11-14	1946-11-04	Telecommunication exchange

Country Status (5)

Country	Link
BE (1)	BE474936A (it)
DE (1)	DE916299C (it)
FR (1)	FR930641A (it)
GB (1)	GB644571A (it)
NL (1)	NL71879C (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB784522A (en) *	1954-10-19	1957-10-09	Gen Electric Co Ltd	Improvements in and relating to automatic telephone systems
BE552603A (it) *	1955-11-23

0
- NL NL71879D patent/NL71879C/xx active
- BE BE474936D patent/BE474936A/xx unknown
1946
- 1946-07-13 FR FR930641D patent/FR930641A/fr not_active Expired
- 1946-11-04 GB GB32708/46A patent/GB644571A/en not_active Expired
1950
- 1950-10-01 DE DEF4325A patent/DE916299C/de not_active Expired

Also Published As

Publication number	Publication date
BE474936A (it)
DE916299C (de)	1954-08-09
NL71879C (it)
FR930641A (fr)	1948-01-30

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