GB716712A - Improvements in or relating to demodulating circuits for frequency-modulated oscillations - Google Patents

Improvements in or relating to demodulating circuits for frequency-modulated oscillations

Info

Publication number
GB716712A
GB716712A GB6894/51A GB689451A GB716712A GB 716712 A GB716712 A GB 716712A GB 6894/51 A GB6894/51 A GB 6894/51A GB 689451 A GB689451 A GB 689451A GB 716712 A GB716712 A GB 716712A
Authority
GB
United Kingdom
Prior art keywords
frequency
circuit
circuits
tuned
coupled
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
GB6894/51A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB716712A publication Critical patent/GB716712A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/14—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding anti-knock agents, not provided for in subgroups F02M25/022 - F02M25/10
    • 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
    • H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
    • H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/06—Limiters of angle-modulated signals; such limiters combined with discriminators
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Transmitters (AREA)
GB6894/51A 1948-12-02 1951-03-22 Improvements in or relating to demodulating circuits for frequency-modulated oscillations Expired GB716712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL278147X 1948-12-02

Publications (1)

Publication Number Publication Date
GB716712A true GB716712A (en) 1954-10-13

Family

ID=19782199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6894/51A Expired GB716712A (en) 1948-12-02 1951-03-22 Improvements in or relating to demodulating circuits for frequency-modulated oscillations

Country Status (6)

Country Link
BE (1) BE502220A (de)
CH (2) CH278147A (de)
DE (1) DE852869C (de)
FR (3) FR1000470A (de)
GB (1) GB716712A (de)
NL (2) NL79284C (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE517917A (de) * 1953-02-24

Also Published As

Publication number Publication date
CH278147A (de) 1951-09-30
FR1000470A (fr) 1952-02-12
NL79284C (de)
BE502220A (de)
CH309842A (de) 1955-09-15
NL159574B (nl)
FR60153E (fr) 1954-09-23
FR69153E (fr) 1958-10-22
DE852869C (de) 1952-10-20

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