BE490173A - - Google Patents

Info

Publication number
BE490173A
BE490173A BE490173DA BE490173A BE 490173 A BE490173 A BE 490173A BE 490173D A BE490173D A BE 490173DA BE 490173 A BE490173 A BE 490173A
Authority
BE
Belgium
Application number
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.)
Publication of BE490173A publication Critical patent/BE490173A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing phase or frequency of 2 mutually independent oscillations in demodulators)
    • 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
    • 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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • 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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Ac-Ac Conversion (AREA)
BE490173D 1948-07-16 BE490173A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2570013X 1948-07-16

Publications (1)

Publication Number Publication Date
BE490173A true BE490173A (fr)

Family

ID=19874801

Family Applications (1)

Application Number Title Priority Date Filing Date
BE490173D BE490173A (fr) 1948-07-16

Country Status (4)

Country Link
US (1) US2570013A (fr)
BE (1) BE490173A (fr)
FR (1) FR990584A (fr)
NL (1) NL76306C (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL172346B (nl) * 1952-09-08 Ppg Industries Inc Elektrolyse-inrichting.
DE976528C (de) * 1953-02-22 1963-10-31 Fernseh Gmbh Verfahren zur Frequenzregelung eines Impulsgenerators
US2896074A (en) * 1953-07-31 1959-07-21 Gen Precision Lab Inc Frequency tracker with fixedly-spaced local oscillations equally offset from unknown frequency
US2940052A (en) * 1954-03-08 1960-06-07 Edgar W Van Winkle Frequency control and synchronizing circuit
GB916033A (en) * 1958-07-21 1963-01-16 Solartron Electronic Group Improvements in and relating to electrical oscillation generators
NL280340A (fr) * 1961-06-29 1900-01-01
US3195068A (en) * 1962-11-19 1965-07-13 W W Henry Company Automatic frequency control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2335265A (en) * 1942-07-22 1943-11-30 Scophony Corp Of America Phase discriminator
US2391776A (en) * 1943-05-29 1945-12-25 Rca Corp Intelligence transmission system

Also Published As

Publication number Publication date
US2570013A (en) 1951-10-02
NL76306C (fr)
FR990584A (fr) 1951-09-24

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