FR1084831A - Système changeur de fréquence - Google Patents

Système changeur de fréquence

Info

Publication number
FR1084831A
FR1084831A FR1084831DA FR1084831A FR 1084831 A FR1084831 A FR 1084831A FR 1084831D A FR1084831D A FR 1084831DA FR 1084831 A FR1084831 A FR 1084831A
Authority
FR
France
Prior art keywords
frequency changer
changer system
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.)
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
Application granted granted Critical
Publication of FR1084831A publication Critical patent/FR1084831A/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
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
FR1084831D 1952-10-10 1953-10-09 Système changeur de fréquence Expired FR1084831A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US314080A US2719916A (en) 1952-10-10 1952-10-10 High frequency converter

Publications (1)

Publication Number Publication Date
FR1084831A true FR1084831A (fr) 1955-01-24

Family

ID=23218470

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1084831D Expired FR1084831A (fr) 1952-10-10 1953-10-09 Système changeur de fréquence

Country Status (5)

Country Link
US (1) US2719916A (OSRAM)
BE (1) BE523353A (OSRAM)
DE (1) DE950072C (OSRAM)
FR (1) FR1084831A (OSRAM)
GB (1) GB725646A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894125A (en) * 1955-05-25 1959-07-07 Standard Coil Prod Co Inc Cascode television tuner with stages having inter-related space discharge currents and common gain control
US3333202A (en) * 1963-08-27 1967-07-25 Sarkes Tarzian Television tuner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372414A (en) * 1931-02-12 1932-05-12 Marconi Wireless Telegraph Co Improvements in or relating to electrical modulation arrangements suitable for use in radio and other high frequency signalling systems
GB405019A (en) * 1932-07-28 1934-01-29 Marconi Wireless Telegraph Co Improvements in or relating to radio and other modulated carrier wave transmitters
US2266670A (en) * 1941-01-28 1941-12-16 Colonial Radio Corp Oscillator-translator system
US2583598A (en) * 1945-11-13 1952-01-29 Salzberg Bernard Modulation
US2568416A (en) * 1947-09-20 1951-09-18 Westinghouse Electric Corp Frequency converter with impedance matched output

Also Published As

Publication number Publication date
GB725646A (en) 1955-03-09
DE950072C (de) 1956-10-04
BE523353A (OSRAM)
US2719916A (en) 1955-10-04

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