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 signalInfo
- 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
- variable resistance
- detector
- multiplier
- frequency converter
- 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
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)
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 (es) | 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 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1257052A2 (en) * | 2001-05-11 | 2002-11-13 | Kabushiki Kaisha Toshiba | Demodulator |
Citations (4)
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 (es) * | 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 |
-
1979
- 1979-02-23 FR FR7904656A patent/FR2449999A1/fr active Granted
Patent Citations (4)
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 (es) * | 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 (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1257052A2 (en) * | 2001-05-11 | 2002-11-13 | Kabushiki Kaisha Toshiba | Demodulator |
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 (es) | 1982-05-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |