FR2449999A1 - Dispositif de transposition de la frequence et de commande du niveau d'un signal - Google Patents

Dispositif de transposition de la frequence et de commande du niveau d'un signal

Info

Publication number
FR2449999A1
FR2449999A1 FR7904656A FR7904656A FR2449999A1 FR 2449999 A1 FR2449999 A1 FR 2449999A1 FR 7904656 A FR7904656 A FR 7904656A FR 7904656 A FR7904656 A FR 7904656A FR 2449999 A1 FR2449999 A1 FR 2449999A1
Authority
FR
France
Prior art keywords
local carrier
detector
frequency converter
variable resistance
carrier via
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.)
Granted
Application number
FR7904656A
Other languages
English (en)
French (fr)
Other versions
FR2449999B1 (cs
Inventor
Paul Delage
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.)
Nokia Inc
Original Assignee
Nokia Inc
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 Nokia Inc filed Critical Nokia Inc
Priority to FR7904656A priority Critical patent/FR2449999A1/fr
Publication of FR2449999A1 publication Critical patent/FR2449999A1/fr
Application granted granted Critical
Publication of FR2449999B1 publication Critical patent/FR2449999B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers

Landscapes

  • Amplitude Modulation (AREA)
FR7904656A 1979-02-23 1979-02-23 Dispositif de transposition de la frequence et de commande du niveau d'un signal Granted FR2449999A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904656A FR2449999A1 (fr) 1979-02-23 1979-02-23 Dispositif de transposition de la frequence et de commande du niveau d'un signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904656A FR2449999A1 (fr) 1979-02-23 1979-02-23 Dispositif de transposition de la frequence et de commande du niveau d'un signal

Publications (2)

Publication Number Publication Date
FR2449999A1 true FR2449999A1 (fr) 1980-09-19
FR2449999B1 FR2449999B1 (cs) 1982-05-21

Family

ID=9222370

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904656A Granted FR2449999A1 (fr) 1979-02-23 1979-02-23 Dispositif de transposition de la frequence et de commande du niveau d'un signal

Country Status (1)

Country Link
FR (1) FR2449999A1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1257052A3 (en) * 2001-05-11 2004-01-07 Kabushiki Kaisha Toshiba Demodulator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2144935A (en) * 1935-09-28 1939-01-24 Rca Corp Automatic volume control circuits
DE1918510A1 (de) * 1968-04-13 1969-10-30 Polska Akademia Nauk Zaklad Verfahren zur automatischen Kompensation von Veraenderungen des Signalniveaus in Mikrowellenschaltungsanordnungen,welche einen Traegerwellengenerator und Mikrowellensignaldetektor enthalten,nebst Anordnung zur Durchfuehrung des Verfahrens
FR2075020A5 (cs) * 1969-12-16 1971-10-08 Western Electric Co
FR2221859A1 (en) * 1973-03-14 1974-10-11 Adret Electronique HF modulation and modulation control cct. - has reference level compared with output feeding back to two frequency multipliers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2144935A (en) * 1935-09-28 1939-01-24 Rca Corp Automatic volume control circuits
DE1918510A1 (de) * 1968-04-13 1969-10-30 Polska Akademia Nauk Zaklad Verfahren zur automatischen Kompensation von Veraenderungen des Signalniveaus in Mikrowellenschaltungsanordnungen,welche einen Traegerwellengenerator und Mikrowellensignaldetektor enthalten,nebst Anordnung zur Durchfuehrung des Verfahrens
FR2075020A5 (cs) * 1969-12-16 1971-10-08 Western Electric Co
FR2221859A1 (en) * 1973-03-14 1974-10-11 Adret Electronique HF modulation and modulation control cct. - has reference level compared with output feeding back to two frequency multipliers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1257052A3 (en) * 2001-05-11 2004-01-07 Kabushiki Kaisha Toshiba Demodulator
US6774739B2 (en) 2001-05-11 2004-08-10 Kabushiki Kaisha Toshiba Frequency converter, orthogonal demodulator and orthogonal modulator
US7057426B2 (en) 2001-05-11 2006-06-06 Kabushiki Kaisha Toshiba Frequency converter, orthogonal demodulator and orthogonal modulator

Also Published As

Publication number Publication date
FR2449999B1 (cs) 1982-05-21

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Legal Events

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ST Notification of lapse