FR938877A - Changeur de fréquence - Google Patents

Changeur de fréquence

Info

Publication number
FR938877A
FR938877A FR938877DA FR938877A FR 938877 A FR938877 A FR 938877A FR 938877D A FR938877D A FR 938877DA FR 938877 A FR938877 A FR 938877A
Authority
FR
France
Prior art keywords
frequency changer
changer
frequency
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 FR938877A publication Critical patent/FR938877A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
FR938877D 1942-06-29 1946-12-10 Changeur de fréquence Expired FR938877A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US938877XA 1942-06-29 1942-06-29

Publications (1)

Publication Number Publication Date
FR938877A true FR938877A (fr) 1948-10-27

Family

ID=22241562

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938877D Expired FR938877A (fr) 1942-06-29 1946-12-10 Changeur de fréquence

Country Status (2)

Country Link
BE (1) BE474855A (en:Method)
FR (1) FR938877A (en:Method)

Also Published As

Publication number Publication date
BE474855A (en:Method)

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