GB644571A - Telecommunication exchange - Google Patents

Telecommunication exchange

Info

Publication number
GB644571A
GB644571A GB32708/46A GB3270846A GB644571A GB 644571 A GB644571 A GB 644571A GB 32708/46 A GB32708/46 A GB 32708/46A GB 3270846 A GB3270846 A GB 3270846A GB 644571 A GB644571 A GB 644571A
Authority
GB
United Kingdom
Prior art keywords
pulses
valve
local oscillator
wire
lock
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
Application number
GB32708/46A
Other languages
English (en)
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.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB644571A publication Critical patent/GB644571A/en
Expired legal-status Critical Current

Links

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)
  • Devices For Supply Of Signal Current (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (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 (forum.php)
DE (1) DE916299C (forum.php)
FR (1) FR930641A (forum.php)
GB (1) GB644571A (forum.php)
NL (1) NL71879C (forum.php)

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 (forum.php) * 1955-11-23

Also Published As

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

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