BE479409A - - Google Patents

Info

Publication number
BE479409A
BE479409A BE479409DA BE479409A BE 479409 A BE479409 A BE 479409A BE 479409D A BE479409D A BE 479409DA BE 479409 A BE479409 A BE 479409A
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 BE479409A publication Critical patent/BE479409A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J1/00Frequency-division multiplex systems
    • H04J1/02Details
    • H04J1/04Frequency-transposition arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplitude Modulation (AREA)
BE479409D 1945-05-15 BE479409A (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR265352X 1945-05-15

Publications (1)

Publication Number Publication Date
BE479409A true BE479409A (no)

Family

ID=8885446

Family Applications (1)

Application Number Title Priority Date Filing Date
BE479409D BE479409A (no) 1945-05-15

Country Status (5)

Country Link
US (1) US2546994A (no)
BE (1) BE479409A (no)
CH (1) CH265352A (no)
ES (1) ES182438A1 (no)
FR (1) FR960982A (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344368A (en) * 1967-09-26 Fettweis bandpass filter
NL185193B (nl) * 1953-02-18 Arnold L & C Bedtafelblad voor ziekenhuisnachtkastjes.
US3020349A (en) * 1954-12-03 1962-02-06 Int Standard Electric Corp Electric pulse modulating and demodulating circuits
US3613032A (en) * 1970-03-19 1971-10-12 Hughes Aircraft Co Composite crystal filter circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204088A (de) * 1937-06-03 1939-04-15 Neue Telefon Gmbh Verfahren zum Betreiben von Trockengleichrichtermodulatoren in Trägerstromanlagen.
FR845377A (fr) * 1937-10-30 1939-08-21 Materiel Telephonique Systèmes transmetteurs et récepteurs pour téléphonie multiplex ou analogues
GB519264A (en) * 1938-10-10 1940-03-20 Philips Nv Improvements in or relating to multi-carrier transmission systems

Also Published As

Publication number Publication date
US2546994A (en) 1951-04-03
FR960982A (no) 1950-04-28
CH265352A (de) 1949-11-30
ES182438A1 (es) 1948-04-16

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