FR942970A - Installation de radio-diffusion de signaux modulés en fréquence - Google Patents

Installation de radio-diffusion de signaux modulés en fréquence

Info

Publication number
FR942970A
FR942970A FR942970DA FR942970A FR 942970 A FR942970 A FR 942970A FR 942970D A FR942970D A FR 942970DA FR 942970 A FR942970 A FR 942970A
Authority
FR
France
Prior art keywords
modulated signals
frequency modulated
radio broadcasting
broadcasting installation
installation
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
English (en)
French (fr)
Inventor
Edwin Howard Armstrong
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23242802&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR942970(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Application granted granted Critical
Publication of FR942970A publication Critical patent/FR942970A/fr
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
    • H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
    • H04B14/006—Angle modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
FR942970D 1940-02-19 1947-03-10 Installation de radio-diffusion de signaux modulés en fréquence Expired FR942970A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US319569A US2215284A (en) 1940-02-19 1940-02-19 Frequency modulation signaling system

Publications (1)

Publication Number Publication Date
FR942970A true FR942970A (fr) 1949-02-23

Family

ID=23242802

Family Applications (1)

Application Number Title Priority Date Filing Date
FR942970D Expired FR942970A (fr) 1940-02-19 1947-03-10 Installation de radio-diffusion de signaux modulés en fréquence

Country Status (4)

Country Link
US (2) US2215284A (enrdf_load_stackoverflow)
BE (1) BE472015A (enrdf_load_stackoverflow)
ES (1) ES177793A1 (enrdf_load_stackoverflow)
FR (1) FR942970A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433093A (en) * 1943-04-27 1947-12-23 Rca Corp Amplitude modulation adapter system
US2585605A (en) * 1946-11-12 1952-02-12 Wallace Navigational system
US2489313A (en) * 1947-03-08 1949-11-29 Int Standard Electric Corp Frequency modulation discriminator
NL147080B (nl) * 1948-06-19 Mead Corp Werkwijze ter vervaardiging van een registratiemateriaal, geschikt voor het ontwikkelen van gekleurde beelden met een kleurreagens, en aldus vervaardigd registratiemateriaal.
US2617923A (en) * 1949-08-31 1952-11-11 Kxok Inc Radio broadcasting system with selective program elimination
US2972046A (en) * 1957-08-30 1961-02-14 Research Corp Bandwidth modulation information transfer system
NL109536C (enrdf_load_stackoverflow) * 1961-07-20
US3444469A (en) * 1965-04-16 1969-05-13 Nippon Electric Co Variable-emphasis communications system of the frequency or phasemodulation type
US4053834A (en) 1973-04-12 1977-10-11 Textron, Inc. Narrowband phase modulation communication system which eliminates thresholding
JP2821198B2 (ja) * 1989-10-02 1998-11-05 キヤノン株式会社 周波数処理回路

Also Published As

Publication number Publication date
ES177793A1 (es) 1947-07-16
USRE21660E (en) 1940-12-17
US2215284A (en) 1940-09-17
BE472015A (enrdf_load_stackoverflow)

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