GB564236A - Improvements in frequency-discriminating electric circuits - Google Patents

Improvements in frequency-discriminating electric circuits

Info

Publication number
GB564236A
GB564236A GB966143A GB966143A GB564236A GB 564236 A GB564236 A GB 564236A GB 966143 A GB966143 A GB 966143A GB 966143 A GB966143 A GB 966143A GB 564236 A GB564236 A GB 564236A
Authority
GB
United Kingdom
Prior art keywords
frequency
circuit
rectifiers
electrodes
resistance
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
GB966143A
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.)
JOHN BARTRAM LOVELL FOOT
General Electric Co PLC
Original Assignee
JOHN BARTRAM LOVELL FOOT
General Electric Co PLC
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 JOHN BARTRAM LOVELL FOOT, General Electric Co PLC filed Critical JOHN BARTRAM LOVELL FOOT
Priority to GB966143A priority Critical patent/GB564236A/en
Publication of GB564236A publication Critical patent/GB564236A/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
    • H03D3/26—Demodulation of angle-, frequency- or phase- modulated oscillations by means of sloping amplitude/frequency characteristic of tuned or reactive circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

564,236. Frequency modulation. GENERAL ELECTRIC CO., Ltd., and FOOT, J. B. L. June 16, 1943, No. 9661. [Class 40 (v)] A frequency discriminating electric network comprises a high-impedance valve 1 with a series circuit comprising condenser C and inductance L across its anode and cathode. This circuit is resonant at the mean frequency of oscillations applied to the grid of the valve 1. The extreme terminals of the circuit CL are connected to like electrodes of diodes D1, D2 or other rectifiers, and the junction of CL is connected to the other like electrodes. A resistance R is connected across the rectifiers, with its mid-point connected to the common electrodes of the rectifiers. Output control voltage proportional to frequency deviation is taken off across the resistance R through a smoothing circuit 8, 9.
GB966143A 1943-06-16 1943-06-16 Improvements in frequency-discriminating electric circuits Expired GB564236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB966143A GB564236A (en) 1943-06-16 1943-06-16 Improvements in frequency-discriminating electric circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB966143A GB564236A (en) 1943-06-16 1943-06-16 Improvements in frequency-discriminating electric circuits

Publications (1)

Publication Number Publication Date
GB564236A true GB564236A (en) 1944-09-19

Family

ID=9876306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB966143A Expired GB564236A (en) 1943-06-16 1943-06-16 Improvements in frequency-discriminating electric circuits

Country Status (1)

Country Link
GB (1) GB564236A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911527A (en) * 1954-08-11 1959-11-03 Cgs Lab Inc Self centering discriminator and control circuit
DE1194010B (en) * 1958-10-06 1965-06-03 Tno Circuit for demodulating frequency-modulated electrical oscillations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911527A (en) * 1954-08-11 1959-11-03 Cgs Lab Inc Self centering discriminator and control circuit
DE1194010B (en) * 1958-10-06 1965-06-03 Tno Circuit for demodulating frequency-modulated electrical oscillations

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