GB562993A - Frequency modulation signal receiving system - Google Patents

Frequency modulation signal receiving system

Info

Publication number
GB562993A
GB562993A GB2310/43A GB231043A GB562993A GB 562993 A GB562993 A GB 562993A GB 2310/43 A GB2310/43 A GB 2310/43A GB 231043 A GB231043 A GB 231043A GB 562993 A GB562993 A GB 562993A
Authority
GB
United Kingdom
Prior art keywords
frequency
valve
oscillator
circuit
grid
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
GB2310/43A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB562993A publication Critical patent/GB562993A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
GB2310/43A 1942-02-12 1943-02-11 Frequency modulation signal receiving system Expired GB562993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US430588A US2356201A (en) 1942-02-12 1942-02-12 Frequency modulation signal receiving system

Publications (1)

Publication Number Publication Date
GB562993A true GB562993A (en) 1944-07-25

Family

ID=23708203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2310/43A Expired GB562993A (en) 1942-02-12 1943-02-11 Frequency modulation signal receiving system

Country Status (3)

Country Link
US (1) US2356201A (enrdf_load_stackoverflow)
FR (1) FR955303A (enrdf_load_stackoverflow)
GB (1) GB562993A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977600C (de) * 1952-12-24 1967-06-22 Koerting Radio Werke G M B H Mitnahmeoszillator fuer den Empfang frequenzmodulierter Wellen

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462759A (en) * 1942-06-13 1949-02-22 Philco Corp Apparatus for receiving frequencymodulated waves
US2488584A (en) * 1943-12-08 1949-11-22 Rca Corp Locked-in oscillator circuits
US2457207A (en) * 1944-05-03 1948-12-28 Rca Corp Angle modulated carrier receiver
US2440653A (en) * 1944-11-14 1948-04-27 Rca Corp Locked-in oscillator circuits
US2513763A (en) * 1945-01-04 1950-07-04 Rca Corp Locked-in oscillator circuit
US2429747A (en) * 1945-01-19 1947-10-28 Rca Corp Combined frequency divider and detector
US2501416A (en) * 1945-02-28 1950-03-21 Philco Corp Muting circuit for frequency modulation radio receivers
US2488606A (en) * 1945-05-02 1949-11-22 Rca Corp Frequency modulation receiver
US2456915A (en) * 1945-05-22 1948-12-21 Rca Corp Angle modulated wave detector
US2488585A (en) * 1945-05-29 1949-11-22 Rca Corp Frequency modulation receiver
US2561149A (en) * 1945-09-10 1951-07-17 Rca Corp Frequency modulation detector circuits
US2507730A (en) * 1946-05-16 1950-05-16 Rca Corp Frequency shift receiver
US2721268A (en) * 1946-09-26 1955-10-18 Laddie T Rhodes Locked-in oscillator
US2507409A (en) * 1947-01-24 1950-05-09 Zenith Radio Corp Time modulated wave receiver
US2656465A (en) * 1948-05-12 1953-10-20 Zenith Radio Corp Synchronizing system
BE491864A (enrdf_load_stackoverflow) * 1948-10-28
US2604586A (en) * 1949-04-28 1952-07-22 Rca Corp Diversity reception
US2563243A (en) * 1949-05-10 1951-08-07 Joseph N Marks Indoor television antenna
US2686221A (en) * 1949-11-03 1954-08-10 Rca Corp Simplified compbination fm and television receiver
US2922119A (en) * 1949-11-12 1960-01-19 Zenith Radio Corp Frequency halving synchronized oscillator
US2677059A (en) * 1951-03-06 1954-04-27 Rca Corp Signal generator
US2817756A (en) * 1952-06-03 1957-12-24 Charles A Debel Variable bandwidth constant peak-amplitude discriminator
US2790905A (en) * 1953-06-09 1957-04-30 Marconi Wireless Telegraph Co Automatic frequency control
US2891105A (en) * 1953-09-23 1959-06-16 Rca Corp Automatic frequency control apparatus
DE1040088B (de) * 1954-05-28 1958-10-02 Philips Patentverwaltung Empfangsgeraet fuer frequenzmodulierte Schwingungen
US2946960A (en) * 1956-05-16 1960-07-26 Motorola Inc Electronic circuit
DE1093429B (de) * 1956-07-07 1960-11-24 Koerting Radio Werke G M B H Demodulationsschaltung
US4068173A (en) * 1977-01-03 1978-01-10 Gte Automatic Electric Laboratories Incorporated Frequency stabilized microwave signal source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977600C (de) * 1952-12-24 1967-06-22 Koerting Radio Werke G M B H Mitnahmeoszillator fuer den Empfang frequenzmodulierter Wellen

Also Published As

Publication number Publication date
US2356201A (en) 1944-08-22
FR955303A (enrdf_load_stackoverflow) 1950-01-14

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