FR903030A - Montage changeur de fréquence - Google Patents

Montage changeur de fréquence

Info

Publication number
FR903030A
FR903030A FR903030DA FR903030A FR 903030 A FR903030 A FR 903030A FR 903030D A FR903030D A FR 903030DA FR 903030 A FR903030 A FR 903030A
Authority
FR
France
Prior art keywords
frequency changer
changer assembly
assembly
frequency
changer
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR903030A publication Critical patent/FR903030A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1408—Balanced arrangements with diodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Superheterodyne Receivers (AREA)
FR903030D 1943-03-27 1944-03-24 Montage changeur de fréquence Expired FR903030A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2582726X 1943-03-27
NL620271X 1943-11-12

Publications (1)

Publication Number Publication Date
FR903030A true FR903030A (fr) 1945-09-21

Family

ID=32232801

Family Applications (2)

Application Number Title Priority Date Filing Date
FR903030D Expired FR903030A (fr) 1943-03-27 1944-03-24 Montage changeur de fréquence
FR54440D Expired FR54440E (fr) 1943-03-27 1946-02-11 Montage changeur de fréquence

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR54440D Expired FR54440E (fr) 1943-03-27 1946-02-11 Montage changeur de fréquence

Country Status (5)

Country Link
US (1) US2582726A (pt)
BE (2) BE455016A (pt)
FR (2) FR903030A (pt)
GB (1) GB620271A (pt)
NL (1) NL65632C (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712062A (en) * 1949-04-12 1955-06-28 Rca Corp Converter circuits
US2835873A (en) * 1954-12-27 1958-05-20 Collins Radio Co Filter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980158A (en) * 1931-05-01 1934-11-06 Rca Corp Oscillatory circuit
US2106776A (en) * 1935-02-23 1938-02-01 Rca Corp Receiving system
NL58874C (pt) * 1938-01-29
US2326801A (en) * 1938-09-22 1943-08-17 George E Pray High frequency tubes and circuits
US2307074A (en) * 1938-09-22 1943-01-05 George E Pray Modulating circuit for high frequencies
US2382693A (en) * 1940-02-24 1945-08-14 Dallenbach Walter Oscillator-modulator circuit
US2260844A (en) * 1940-03-12 1941-10-28 Gen Electric Ultra high frequency converter
BE445613A (pt) * 1941-05-19
US2479537A (en) * 1942-12-30 1949-08-16 Gen Electric Detector-oscillator circuit for ultra high frequency receivers

Also Published As

Publication number Publication date
NL65632C (pt) 1950-05-15
FR54440E (fr) 1950-05-02
US2582726A (en) 1952-01-15
BE455016A (pt) 1944-04-29
GB620271A (en) 1949-03-22
BE457989A (pt) 1945-06-27

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