FR939087A - Electrical communications systems - Google Patents

Electrical communications systems

Info

Publication number
FR939087A
FR939087A FR939087DA FR939087A FR 939087 A FR939087 A FR 939087A FR 939087D A FR939087D A FR 939087DA FR 939087 A FR939087 A FR 939087A
Authority
FR
France
Prior art keywords
communications systems
electrical communications
electrical
systems
communications
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
Other languages
French (fr)
Inventor
Prafulla Kumar Chat Terjea
Dermot Min Ambrose
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR939087A publication Critical patent/FR939087A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Near-Field Transmission Systems (AREA)
FR939087D 1942-03-13 1946-04-01 Electrical communications systems Expired FR939087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3374/42A GB556001A (en) 1942-03-13 1942-03-13 Improvements relating to electrical communication systems

Publications (1)

Publication Number Publication Date
FR939087A true FR939087A (en) 1948-11-03

Family

ID=9757111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR939087D Expired FR939087A (en) 1942-03-13 1946-04-01 Electrical communications systems

Country Status (5)

Country Link
US (1) US2489268A (en)
BE (1) BE476184A (en)
FR (1) FR939087A (en)
GB (1) GB556001A (en)
NL (2) NL67408C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564769A (en) * 1949-10-25 1951-08-21 Rca Corp Translating circuit
US2929924A (en) * 1955-02-21 1960-03-22 Westinghouse Electric Corp Radiation suppression circuit
US2956153A (en) * 1957-11-08 1960-10-11 Sylvania Electric Prod Electrical noise reduction techniques

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1584327A (en) * 1926-05-11 Electric-wave transmission system
US1564627A (en) * 1920-03-31 1925-12-08 Rca Corp Wireless telegraph and telephone transmission
US1678163A (en) * 1923-12-29 1928-07-24 Western Electric Co Modulation
US1655543A (en) * 1924-04-18 1928-01-10 Western Electric Co Transmission system
US1911253A (en) * 1926-09-13 1933-05-30 Clinton Dorothy Radio receiving apparatus
US1699570A (en) * 1927-09-23 1929-01-22 American Telephone & Telegraph Carrier suppression modulation
US1876793A (en) * 1929-10-22 1932-09-13 Frank C Talmadge Radio circuit
US1971383A (en) * 1932-03-11 1934-08-28 Telefunken Gmbh Transmitter
GB398853A (en) * 1932-03-22 1933-09-22 Marconi Wireless Telegraph Co Improvements in or relating to radio and other high frequency modulated carrier wave systems
US2061734A (en) * 1934-09-29 1936-11-24 Rca Corp Signaling system
US2279659A (en) * 1937-04-13 1942-04-14 Rca Corp Frequency modulator
NL88393C (en) * 1937-06-18
US2205359A (en) * 1938-06-24 1940-06-18 Hygrade Sylvania Corp Superheterodyne receiver
US2230243A (en) * 1938-06-28 1941-02-04 Philip M Haffcke Signal selection by amplitude discrimination
US2257282A (en) * 1939-04-27 1941-09-30 Rca Corp Frequency modulation of signals
US2303493A (en) * 1940-05-17 1942-12-01 Rca Corp Diversity signaling system
US2404306A (en) * 1941-04-01 1946-07-16 Rca Corp Communication system
NL137118C (en) * 1942-08-24

Also Published As

Publication number Publication date
BE476184A (en)
NL67408C (en)
GB556001A (en) 1943-09-15
NL136059B (en)
US2489268A (en) 1949-11-29

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