CH264774A - Schaltung zur Erzeugung einer Spannung, die ein Mass der Frequenz einer Hochfrequenzschwingung ist. - Google Patents

Schaltung zur Erzeugung einer Spannung, die ein Mass der Frequenz einer Hochfrequenzschwingung ist.

Info

Publication number
CH264774A
CH264774A CH264774DA CH264774A CH 264774 A CH264774 A CH 264774A CH 264774D A CH264774D A CH 264774DA CH 264774 A CH264774 A CH 264774A
Authority
CH
Switzerland
Prior art keywords
measure
voltage
generating
circuit
frequency
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Nv filed Critical Philips Nv
Publication of CH264774A publication Critical patent/CH264774A/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • 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
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/004—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling an oscillator, e.g. the local oscillator
    • 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
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
CH264774D 1942-11-03 1947-08-07 Schaltung zur Erzeugung einer Spannung, die ein Mass der Frequenz einer Hochfrequenzschwingung ist. CH264774A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US464380A US2406309A (en) 1942-11-03 1942-11-03 Frequency stabilization
US478705A US2383359A (en) 1942-11-03 1943-03-10 Frequency modulation receiver

Publications (1)

Publication Number Publication Date
CH264774A true CH264774A (de) 1949-10-31

Family

ID=27040960

Family Applications (1)

Application Number Title Priority Date Filing Date
CH264774D CH264774A (de) 1942-11-03 1947-08-07 Schaltung zur Erzeugung einer Spannung, die ein Mass der Frequenz einer Hochfrequenzschwingung ist.

Country Status (4)

Country Link
US (2) US2406309A (xx)
CH (1) CH264774A (xx)
DE (1) DE821047C (xx)
FR (1) FR957645A (xx)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600288A (en) * 1943-10-14 1952-06-10 Hartford Nat Bank & Trust Co Frequency stabilizing apparatus
US2541066A (en) * 1943-11-24 1951-02-13 Sperry Corp Object detecting and warning system and method
NL80790C (xx) * 1944-07-19
US2510906A (en) * 1945-03-24 1950-06-06 Avco Mfg Corp Frequency modulation receiver
US2473853A (en) * 1946-01-22 1949-06-21 Westinghouse Electric Corp Frequency control system
US2545296A (en) * 1946-02-20 1951-03-13 Mittelmann Eugene Constant frequency control for high-frequency heating apparatus
US2724778A (en) * 1946-03-07 1955-11-22 Jasik Henry Electrical generating device
US2526353A (en) * 1946-11-15 1950-10-17 Rca Corp Stabilized low-frequency oscillator
NL136716C (xx) * 1946-12-10
NL85185C (xx) * 1948-03-27
NL150323B (nl) * 1948-04-15 Ideal Kk Zelfopenende en -sluitende paraplu.
NL75725C (xx) * 1950-05-22
US2831632A (en) * 1950-11-04 1958-04-22 Westinghouse Electric Corp Electronic speed controlling apparatus
US3078752A (en) * 1951-12-26 1963-02-26 Rca Corp Circuit for simulating vibrato effect by amplitude modulation of tone by sawtooth waveform
US2774872A (en) * 1952-12-17 1956-12-18 Bell Telephone Labor Inc Phase shifting circuit
US3084327A (en) * 1959-05-11 1963-04-02 Bell Telephone Labor Inc High efficiency frequency modulation system for television and speech signals
NL277424A (xx) * 1961-04-25
NL179435C (nl) * 1977-10-26 1986-09-01 Philips Nv Ontvanger met een frequentiesynthese-schakeling.
LT2736737T (lt) * 2011-07-27 2018-03-26 Galileo Wheel Ltd. Padanga antžeminio transporto priemonei

Also Published As

Publication number Publication date
US2406309A (en) 1946-08-20
FR957645A (xx) 1950-02-23
US2383359A (en) 1945-08-21
DE821047C (de) 1952-01-07

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