BE504213A - - Google Patents

Info

Publication number
BE504213A
BE504213A BE504213DA BE504213A BE 504213 A BE504213 A BE 504213A BE 504213D A BE504213D A BE 504213DA BE 504213 A BE504213 A BE 504213A
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 BE504213A publication Critical patent/BE504213A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H04B1/302—Circuits for homodyne or synchrodyne receivers for single sideband receivers
    • 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
    • H03J7/047—Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal
    • 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
    • H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
    • H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
    • 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
BE504213D 1950-06-27 BE504213A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL679457X 1950-06-27

Publications (1)

Publication Number Publication Date
BE504213A true BE504213A (zh)

Family

ID=19802388

Family Applications (1)

Application Number Title Priority Date Filing Date
BE504213D BE504213A (zh) 1950-06-27

Country Status (6)

Country Link
US (1) US2698904A (zh)
BE (1) BE504213A (zh)
DE (2) DE846421C (zh)
FR (2) FR1044810A (zh)
GB (2) GB679457A (zh)
NL (1) NL81046C (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL176205B (nl) * 1952-02-21 Sintab Swedinventor Ab Werkwijze voor het drogen van goed in de vorm van korrels of pulp.
US2838671A (en) * 1952-07-10 1958-06-10 Farnsworth Res Corp Automatic frequency control circuit
US2777064A (en) * 1953-12-11 1957-01-08 Harris A Robinson Frequency control system
US2833923A (en) * 1955-10-13 1958-05-06 Gen Electric Hunting a. f. c. system
US2847572A (en) * 1956-03-20 1958-08-12 Bell Telephone Labor Inc Synchronized automatic frequency control system
US2921188A (en) * 1956-10-17 1960-01-12 Collins Radio Co Single sideband diversity system
US2976410A (en) * 1957-01-29 1961-03-21 Rca Corp Automatic frequency control system
US2988637A (en) * 1959-08-18 1961-06-13 Gen Electric Frequency control system
DE1271786B (de) * 1963-05-31 1968-07-04 Siemens Ag Im Bereich der kurzen oder der noch kuerzeren Wellen arbeitende UEbertragungsanlage mit einem Sender und einem zum Empfang desselben bestimmten Empfaenger
US3859599A (en) * 1972-12-20 1975-01-07 Gen Electric Signal acquisition network for signal reception

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415799A (en) * 1945-03-09 1947-02-11 Stevens Arnold Company Inc Automatic means for controlling the power fed to an oscillator load
GB646929A (en) * 1947-07-04 1950-11-29 Emi Ltd Improvements in or relating to control circuits for electrical oscillation generators
US2561041A (en) * 1947-12-13 1951-07-17 Hartford Nat Bank & Trust Co Variable reactance and control device comprising such a reactance

Also Published As

Publication number Publication date
GB725903A (en) 1955-03-09
NL81046C (zh)
GB679457A (en) 1952-09-17
DE925053C (de) 1955-03-10
FR1044810A (fr) 1953-11-20
US2698904A (en) 1955-01-04
FR64547E (fr) 1955-11-14
DE846421C (de) 1952-08-11

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