FR1086252A - Circuit de synchronisation automatique, notamment pour appareils de radio-navigation - Google Patents

Circuit de synchronisation automatique, notamment pour appareils de radio-navigation

Info

Publication number
FR1086252A
FR1086252A FR1086252DA FR1086252A FR 1086252 A FR1086252 A FR 1086252A FR 1086252D A FR1086252D A FR 1086252DA FR 1086252 A FR1086252 A FR 1086252A
Authority
FR
France
Prior art keywords
synchronization circuit
navigation devices
radio navigation
automatic synchronization
automatic
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
Other languages
English (en)
French (fr)
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.)
Unisys Corp
Original Assignee
Sperry Corp
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 Sperry Corp filed Critical Sperry Corp
Application granted granted Critical
Publication of FR1086252A publication Critical patent/FR1086252A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Synchronizing For Television (AREA)
  • Particle Accelerators (AREA)
FR1086252D 1949-02-02 1950-02-02 Circuit de synchronisation automatique, notamment pour appareils de radio-navigation Expired FR1086252A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US668777XA 1949-02-02 1949-02-02

Publications (1)

Publication Number Publication Date
FR1086252A true FR1086252A (fr) 1955-02-10

Family

ID=22072283

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1086252D Expired FR1086252A (fr) 1949-02-02 1950-02-02 Circuit de synchronisation automatique, notamment pour appareils de radio-navigation

Country Status (4)

Country Link
US (1) US2636988A (enEXAMPLES)
FR (1) FR1086252A (enEXAMPLES)
GB (1) GB668777A (enEXAMPLES)
NL (1) NL84736C (enEXAMPLES)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738422A (en) * 1950-08-25 1956-03-13 Rca Corp Frequency control
US2874285A (en) * 1955-05-13 1959-02-17 Western Electric Co Circuits for forming trains of pulses
US3142802A (en) * 1962-07-03 1964-07-28 Telemetrics Inc Synchronous clock pulse generator
US3195068A (en) * 1962-11-19 1965-07-13 W W Henry Company Automatic frequency control

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096881A (en) * 1936-06-09 1937-10-26 Wired Radio Inc Electronic synchronizing system
US2200103A (en) * 1938-04-21 1940-05-07 Westinghouse Electric & Mfg Co Phase indicating means
US2209507A (en) * 1939-02-15 1940-07-30 Du Mont Allen B Lab Inc Synchronizing generator
US2389025A (en) * 1942-01-10 1945-11-13 Du Mont Allen B Lab Inc Synchronizer for oscillators
NL73970C (enEXAMPLES) * 1943-12-03
US2468109A (en) * 1945-03-19 1949-04-26 Standard Telephones Cables Ltd Direction finder
NL68909C (enEXAMPLES) * 1945-09-21
US2513477A (en) * 1946-02-14 1950-07-04 Rca Corp Omnidirectional radio range
US2513528A (en) * 1946-03-08 1950-07-04 Rca Corp Omnidirectional radio range
US2521058A (en) * 1946-05-28 1950-09-05 Bendix Aviat Corp Frequency and phase control system
US2506818A (en) * 1947-10-10 1950-05-09 Rca Corp Radio altimeter utilizing phase comparison

Also Published As

Publication number Publication date
GB668777A (en) 1952-03-19
US2636988A (en) 1953-04-28
NL84736C (enEXAMPLES)

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