DE931536C - Frequenzdiskriminator, insbesondere fuer Frequenzstabilisierung - Google Patents

Frequenzdiskriminator, insbesondere fuer Frequenzstabilisierung

Info

Publication number
DE931536C
DE931536C DEA18315A DEA0018315A DE931536C DE 931536 C DE931536 C DE 931536C DE A18315 A DEA18315 A DE A18315A DE A0018315 A DEA0018315 A DE A0018315A DE 931536 C DE931536 C DE 931536C
Authority
DE
Germany
Prior art keywords
frequency
oscillating
discriminator
crystal
curve
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
DEA18315A
Other languages
German (de)
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.)
Autophon AG
Original Assignee
Autophon AG
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 Autophon AG filed Critical Autophon AG
Application granted granted Critical
Publication of DE931536C publication Critical patent/DE931536C/de
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
    • H03D3/06—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
    • H03D3/16—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 electromechanical resonators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • 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)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
DEA18315A 1952-08-22 1953-06-30 Frequenzdiskriminator, insbesondere fuer Frequenzstabilisierung Expired DE931536C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1082134X 1952-08-22

Publications (1)

Publication Number Publication Date
DE931536C true DE931536C (de) 1955-08-11

Family

ID=4556446

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA18315A Expired DE931536C (de) 1952-08-22 1953-06-30 Frequenzdiskriminator, insbesondere fuer Frequenzstabilisierung

Country Status (4)

Country Link
BE (1) BE521745A (xx)
CH (1) CH303101A (xx)
DE (1) DE931536C (xx)
FR (1) FR1082134A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591364B1 (de) * 1967-04-29 1970-08-20 Philips Patentverwaltung Schaltungsanordnung zum Abstimmen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE662456C (de) * 1935-11-02 1938-07-13 Rca Corp Einrichtung zur Umwandlung phasen- oder frequenzmodulierter Schwingungen in amplitudenmodulierte oder umgekehrt
FR961639A (xx) * 1950-05-16

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR961639A (xx) * 1950-05-16
DE662456C (de) * 1935-11-02 1938-07-13 Rca Corp Einrichtung zur Umwandlung phasen- oder frequenzmodulierter Schwingungen in amplitudenmodulierte oder umgekehrt

Also Published As

Publication number Publication date
FR1082134A (fr) 1954-12-27
BE521745A (xx)
CH303101A (de) 1954-11-15

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