GB1121290A - Angle-lock signal processing system including a digital feedback loop - Google Patents

Angle-lock signal processing system including a digital feedback loop

Info

Publication number
GB1121290A
GB1121290A GB22649/66A GB2264966A GB1121290A GB 1121290 A GB1121290 A GB 1121290A GB 22649/66 A GB22649/66 A GB 22649/66A GB 2264966 A GB2264966 A GB 2264966A GB 1121290 A GB1121290 A GB 1121290A
Authority
GB
United Kingdom
Prior art keywords
output
amplifier
frequency
oscillator
input
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
GB22649/66A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1121290A publication Critical patent/GB1121290A/en
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
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail
    • 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
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H03D3/242—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop combined with means for controlling the frequency of a further oscillator, e.g. for negative frequency feedback or AFC
    • 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
    • H03J7/06—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 using counters or frequency dividers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radio Relay Systems (AREA)
GB22649/66A 1965-05-21 1966-05-20 Angle-lock signal processing system including a digital feedback loop Expired GB1121290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR17889A FR1444235A (fr) 1965-05-21 1965-05-21 Perfectionnements aux récepteurs radioélectriques à commande automatique de phase

Publications (1)

Publication Number Publication Date
GB1121290A true GB1121290A (en) 1968-07-24

Family

ID=8579402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22649/66A Expired GB1121290A (en) 1965-05-21 1966-05-20 Angle-lock signal processing system including a digital feedback loop

Country Status (5)

Country Link
US (1) US3411103A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1516747B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1444235A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1121290A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE318626B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1539645A (fr) * 1967-02-21 1968-09-20 Materiel Telephonique Procédé et dispositif d'accord automatique sur une fréquence donnée, d'un circuit oscillant à fréquence réglable
US3495184A (en) * 1968-03-11 1970-02-10 Radiation Inc Phase-locked loop having improved acquisition range
US3579122A (en) * 1969-12-23 1971-05-18 Nasa Digital filter for reducing sampling jitter in digital control systems
US3777276A (en) * 1973-01-24 1973-12-04 Us Navy Phase lock loop with automatic step by step search sweep followed by linear search sweep
JPS513160A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-06-25 1976-01-12 Matsushita Electric Ind Co Ltd
US4031549A (en) * 1976-05-21 1977-06-21 Rca Corporation Television tuning system with provisions for receiving RF carrier at nonstandard frequency
FR2546691B1 (fr) * 1983-05-27 1985-07-05 Cit Alcatel Base de temps asservie
CH668151A5 (de) * 1985-03-28 1988-11-30 Sodeco Compteurs De Geneve Verfahren und einrichtung zum senden und zum empfangen von traegerfrequenten telephontaximpulsen.
JP2953854B2 (ja) * 1992-01-27 1999-09-27 日本電気株式会社 Ｆｍ復調回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH272435A (de) * 1948-04-17 1950-12-15 Philips Nv Vorrichtung zur selbsttätigen Frequenzkorrektion eines Oszillators auf eine Steuerfrequenz.
DE886025C (de) * 1951-08-04 1953-08-10 Telefunken Gmbh Einrichtung zur selbsttaetigen Regelung der Frequenz
US2982921A (en) * 1959-02-25 1961-05-02 Ferguson Radio Corp Automatic frequency control circuits
NL280342A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1961-06-29
US3275940A (en) * 1963-05-28 1966-09-27 Leonard R Kahn Automatic frequency control means for single-sideband receivers and the like
US3290611A (en) * 1965-09-14 1966-12-06 Bell Telephone Labor Inc Digital frequency control circuit

Also Published As

Publication number Publication date
US3411103A (en) 1968-11-12
SE318626B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-12-15
DE1516747B1 (de) 1970-03-19
FR1444235A (fr) 1966-07-01

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