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FR783004A - Système de modulation pour radio-communication - Google Patents

Système de modulation pour radio-communication

Info

Publication number
FR783004A
FR783004A FR783004DA FR783004A FR 783004 A FR783004 A FR 783004A FR 783004D A FR783004D A FR 783004DA FR 783004 A FR783004 A FR 783004A
Authority
FR
France
Prior art keywords
radio communication
modulation system
modulation
radio
communication
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)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR783004A publication Critical patent/FR783004A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18144—Overcoming dead center

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Audible And Visible Signals (AREA)
FR783004D 1933-12-23 1934-12-19 Système de modulation pour radio-communication Expired FR783004A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US703802A US2051537A (en) 1933-12-23 1933-12-23 Modulation system

Publications (1)

Publication Number Publication Date
FR783004A true FR783004A (fr) 1935-07-06

Family

ID=24826837

Family Applications (1)

Application Number Title Priority Date Filing Date
FR783004D Expired FR783004A (fr) 1933-12-23 1934-12-19 Système de modulation pour radio-communication

Country Status (3)

Country Link
US (1) US2051537A (fr)
FR (1) FR783004A (fr)
GB (1) GB433842A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000061B (de) * 1951-06-18 1957-01-03 Int Standard Electric Corp Verfahren zur Beeinflussung von Hochfrequenzschwingungen mit Hilfe magnetischer oder elektrischer Felder
DE972329C (de) * 1951-05-26 1959-07-02 Western Electric Co Einrichtung zur Beeinflussung von linear bzw. eben polarisierten Wellen im Mikrowellenbereich

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464269A (en) * 1942-06-12 1949-03-15 Raytheon Mfg Co Method and means for controlling the polarization of radiant energy
US2473613A (en) * 1942-07-09 1949-06-21 Raytheon Mfg Co Communication system
US2489075A (en) * 1943-04-17 1949-11-22 Gen Electric Pulse echo testing apparatus
US2514679A (en) * 1944-06-16 1950-07-11 Bell Telephone Labor Inc Wave transmission
US2531951A (en) * 1944-08-02 1950-11-28 W I Westervelt Interference reducing method of secret communication
US2508571A (en) * 1945-02-08 1950-05-23 Us Sec War Radio echo detection apparatus
NL144629B (nl) * 1948-02-06 Shell Int Research Werkwijze voor het bereiden van oplosbare condensatieprodukten en met water verdunbare verfbindmiddelen.
US2707749A (en) * 1949-06-21 1955-05-03 Rines Robert Harvey System of light beam communication
US2814783A (en) * 1950-05-17 1957-11-26 Bell Telephone Labor Inc Magnetically controllable transmission system
US2768354A (en) * 1951-05-26 1956-10-23 Bell Telephone Labor Inc Gyromagnetic resonance type microwave mode converter
US3895300A (en) * 1952-03-11 1975-07-15 Itt Electronic mixer and converter
US2798205A (en) * 1952-05-28 1957-07-02 Bell Telephone Labor Inc Magnetically controllable transmission system
US2743322A (en) * 1952-11-29 1956-04-24 Bell Telephone Labor Inc Solid state amplifier
US2832053A (en) * 1953-10-27 1958-04-22 Robert H Dicke Microwave apparatus and methods utilizing gas cells
US2802944A (en) * 1953-12-30 1957-08-13 Rca Corp Oscillators employing microwave resonant substance
US2922126A (en) * 1954-06-24 1960-01-19 Bell Telephone Labor Inc Nonreciprocal wave guide component
US2842747A (en) * 1954-09-03 1958-07-08 Itt Self-triggered microwave attenuator
US3000598A (en) * 1954-09-30 1961-09-19 George B Bush Roll stabilization system
US2857574A (en) * 1954-12-23 1958-10-21 Hazeltine Research Inc Tunable electrical resonator
BE540210A (fr) * 1955-04-04
US2982909A (en) * 1955-08-22 1961-05-02 Sylvania Electric Prod Broadband microwave frequency meter
US2965863A (en) * 1956-06-19 1960-12-20 Bell Telephone Labor Inc Magnetic tuned cavity resonator
US2844724A (en) * 1957-05-22 1958-07-22 Gen Precision Lab Inc Microwave frequency modulation transducer
GB895131A (en) * 1958-01-13 1962-05-02 Gen Electric Co Ltd Improvements in or relating to modulators for use in microwave systems
US3246158A (en) * 1961-02-10 1966-04-12 Varian Associates Optical detectors
US3300721A (en) * 1964-04-29 1967-01-24 Stuart L Seaton Means for communicating through a layer of ionized gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972329C (de) * 1951-05-26 1959-07-02 Western Electric Co Einrichtung zur Beeinflussung von linear bzw. eben polarisierten Wellen im Mikrowellenbereich
DE1000061B (de) * 1951-06-18 1957-01-03 Int Standard Electric Corp Verfahren zur Beeinflussung von Hochfrequenzschwingungen mit Hilfe magnetischer oder elektrischer Felder

Also Published As

Publication number Publication date
GB433842A (en) 1935-08-21
US2051537A (en) 1936-08-18

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