GB681265A - Improvements in or relating to superheterodyne receivers - Google Patents

Improvements in or relating to superheterodyne receivers

Info

Publication number
GB681265A
GB681265A GB25600/49A GB2560049A GB681265A GB 681265 A GB681265 A GB 681265A GB 25600/49 A GB25600/49 A GB 25600/49A GB 2560049 A GB2560049 A GB 2560049A GB 681265 A GB681265 A GB 681265A
Authority
GB
United Kingdom
Prior art keywords
mixer
voltage
oscillator
frequency
supplied
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
GB25600/49A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB681265A publication Critical patent/GB681265A/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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
GB25600/49A 1948-10-08 1949-10-05 Improvements in or relating to superheterodyne receivers Expired GB681265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL681265X 1948-10-08

Publications (1)

Publication Number Publication Date
GB681265A true GB681265A (en) 1952-10-22

Family

ID=19804558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25600/49A Expired GB681265A (en) 1948-10-08 1949-10-05 Improvements in or relating to superheterodyne receivers

Country Status (2)

Country Link
DE (1) DE809080C (de)
GB (1) GB681265A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932071C (de) * 1952-02-01 1955-08-22 Rundfunk Tech I G M B H Verfahren zur Demodulation eines Traegers, dem ausser einer Frequenzmodulation eine Amplitudenmodulation aufgepraegt ist
DE1103383B (de) * 1958-07-24 1961-03-30 Grundig Max Abstimmeinrichtung fuer Fernsehgeraete

Also Published As

Publication number Publication date
DE809080C (de) 1951-08-20

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