IT1129731B - TUNERS FOR TELEVISION - Google Patents
TUNERS FOR TELEVISIONInfo
- Publication number
- IT1129731B IT1129731B IT20429/80A IT2042980A IT1129731B IT 1129731 B IT1129731 B IT 1129731B IT 20429/80 A IT20429/80 A IT 20429/80A IT 2042980 A IT2042980 A IT 2042980A IT 1129731 B IT1129731 B IT 1129731B
- Authority
- IT
- Italy
- Prior art keywords
- tuners
- television
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Filters And Equalizers (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2909319A DE2909319C2 (en) | 1979-03-09 | 1979-03-09 | tuner |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8020429A0 IT8020429A0 (en) | 1980-03-07 |
IT1129731B true IT1129731B (en) | 1986-06-11 |
Family
ID=6064968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20429/80A IT1129731B (en) | 1979-03-09 | 1980-03-07 | TUNERS FOR TELEVISION |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS55138930A (en) |
DE (1) | DE2909319C2 (en) |
ES (1) | ES489321A1 (en) |
FR (1) | FR2451133A1 (en) |
IT (1) | IT1129731B (en) |
ZA (1) | ZA801348B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3106997A1 (en) * | 1981-02-25 | 1982-09-09 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | TUNER FOR TELEVISION RECEIVER |
FI67980C (en) * | 1983-10-13 | 1985-06-10 | Salora Oy | KOPPLING FOER ETT FOER MICROVAOGSFREKVENSER AVSTAEMBART FILTERSAMT FOERVERKLIGANDE AV DENSAMMA |
US4662001A (en) * | 1985-08-15 | 1987-04-28 | Zenith Electronics Corporation | Tunable notch filter for image frequency and conducted local oscillator leakage rejection |
US4783849A (en) * | 1986-11-26 | 1988-11-08 | Rca Licensing Corporation | FET tuner |
US5428828A (en) * | 1992-08-28 | 1995-06-27 | Thomson Consumer Electronics, Inc. | Television receiver tuning circuit |
JPH0993091A (en) * | 1995-09-25 | 1997-04-04 | Alps Electric Co Ltd | Input tuning circuit of television tuner |
US5767726A (en) * | 1996-10-21 | 1998-06-16 | Lucent Technologies Inc. | Four terminal RF mixer device |
WO2006047294A1 (en) * | 2004-10-22 | 2006-05-04 | University Of Florida Research Foundation, Inc. | Frequency tunable low noise amplifier |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1171032B (en) * | 1961-11-13 | 1964-05-27 | Telefunken Patent | Arrangement for electronic voting and automatic sharpening |
DE2701353A1 (en) * | 1977-01-14 | 1978-08-10 | Licentia Gmbh | Mixing stage linearity increasing circuit - has voltage dependent capacitors connected to oscillator output and mixer input |
-
1979
- 1979-03-09 DE DE2909319A patent/DE2909319C2/en not_active Expired
-
1980
- 1980-01-04 FR FR8000166A patent/FR2451133A1/en active Granted
- 1980-03-07 ZA ZA00801348A patent/ZA801348B/en unknown
- 1980-03-07 ES ES489321A patent/ES489321A1/en not_active Expired
- 1980-03-07 IT IT20429/80A patent/IT1129731B/en active
- 1980-03-10 JP JP2930680A patent/JPS55138930A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2451133A1 (en) | 1980-10-03 |
ES489321A1 (en) | 1980-08-16 |
ZA801348B (en) | 1981-06-24 |
IT8020429A0 (en) | 1980-03-07 |
DE2909319A1 (en) | 1980-09-11 |
JPS55138930A (en) | 1980-10-30 |
FR2451133B3 (en) | 1981-10-30 |
DE2909319C2 (en) | 1982-10-14 |
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