BE494824A - - Google Patents

Info

Publication number
BE494824A
BE494824A BE494824DA BE494824A BE 494824 A BE494824 A BE 494824A BE 494824D A BE494824D A BE 494824DA BE 494824 A BE494824 A BE 494824A
Authority
BE
Belgium
Application number
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.)
Publication of BE494824A publication Critical patent/BE494824A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/54—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements of vacuum tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
BE494824D 1949-03-29 BE494824A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB300209X 1949-03-29

Publications (1)

Publication Number Publication Date
BE494824A true BE494824A (zh)

Family

ID=10300973

Family Applications (2)

Application Number Title Priority Date Filing Date
BE494825D BE494825A (zh) 1949-03-29
BE494824D BE494824A (zh) 1949-03-29

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE494825D BE494825A (zh) 1949-03-29

Country Status (6)

Country Link
US (1) US2583711A (zh)
BE (2) BE494824A (zh)
CH (1) CH300209A (zh)
DE (1) DE931243C (zh)
FR (1) FR1018011A (zh)
GB (1) GB731912A (zh)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE488995A (zh) * 1948-05-15
BE496495A (zh) * 1949-06-21
NL163817B (nl) * 1949-10-26 Huels Chemische Werke Ag Werkwijze ter bereiding van preparaten die polybuteen-1 en een vulstof bevatten.
NL160049B (nl) * 1950-01-06 Inst Francais Du Petrole Inrichting voor het uitvoeren van werkzaamheden aan de kabel in een onder water gelegen aardolieput.
GB744291A (en) * 1950-01-16 1956-02-01 Standard Telephones Cables Ltd Improvements in or relating to electrical communication systems
NL87832C (zh) * 1950-05-17
USRE24679E (en) * 1951-02-02 1959-08-11 Automatic telephone systems
GB759693A (en) * 1951-02-16 1956-10-24 Gen Electric Co Ltd Improvements in or relating to automatic telephone systems
BE512899A (zh) * 1951-07-21
US2611025A (en) * 1951-08-01 1952-09-16 Gen Electric Selective signal transmission system
US2756329A (en) * 1951-09-10 1956-07-24 Underwood Corp Bi-stable device
US2747020A (en) * 1951-11-24 1956-05-22 Gen Electric Co Ltd Telecommunication systems embodying automatic exchanges
US2754503A (en) * 1951-12-21 1956-07-10 Little Inc A Digital reading apparatus
US3084287A (en) * 1958-11-13 1963-04-02 Atomic Energy Authority Uk Electrical circuits performing a switching function
US3073906A (en) * 1959-06-16 1963-01-15 Bell Telephone Labor Inc Line concentrating telephone system
US3809815A (en) * 1972-05-04 1974-05-07 Litton Systems Inc Communication system utilizing frequency division multiplexing to link a plurality of stations each containing a switchable synthesizer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471138A (en) * 1946-08-16 1949-05-24 Gen Electric Radio communication system

Also Published As

Publication number Publication date
FR1018011A (fr) 1952-12-24
GB731912A (en) 1955-06-15
BE494825A (zh)
DE931243C (de) 1955-08-04
CH300209A (fr) 1954-07-15
US2583711A (en) 1952-01-29

Similar Documents

Publication Publication Date Title
FR948000A (zh)
FR949930A (zh)
BE488514A (zh)
BE487748A (zh)
NL216340A (zh)
NL87829C (zh)
NL74702C (zh)
NL74682C (zh)
BE487077A (zh)
NL72657C (zh)
NL68575C (zh)
BE496097A (zh)
BE499957A (zh)
BE497741A (zh)
BE494824A (zh)
BE497286A (zh)
BE494196A (zh)
BE494159A (zh)
BE493558A (zh)
BE488550A (zh)
BE498097A (zh)
BE488253A (zh)
BE488429A (zh)
BE488426A (zh)
BE488420A (zh)