ZA801348B - A tuner for television receivers - Google Patents

A tuner for television receivers

Info

Publication number
ZA801348B
ZA801348B ZA00801348A ZA801348A ZA801348B ZA 801348 B ZA801348 B ZA 801348B ZA 00801348 A ZA00801348 A ZA 00801348A ZA 801348 A ZA801348 A ZA 801348A ZA 801348 B ZA801348 B ZA 801348B
Authority
ZA
South Africa
Prior art keywords
tuner
television receivers
receivers
television
Prior art date
Application number
ZA00801348A
Inventor
W Heindorf
W Katthaen
G Luber
H Maly
Original Assignee
Blaupunkt Werke Gmbh
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 Blaupunkt Werke Gmbh filed Critical Blaupunkt Werke Gmbh
Publication of ZA801348B publication Critical patent/ZA801348B/en

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)
  • Noise Elimination (AREA)
  • Filters And Equalizers (AREA)
ZA00801348A 1979-03-09 1980-03-07 A tuner for television receivers ZA801348B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2909319A DE2909319C2 (en) 1979-03-09 1979-03-09 tuner

Publications (1)

Publication Number Publication Date
ZA801348B true ZA801348B (en) 1981-06-24

Family

ID=6064968

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00801348A ZA801348B (en) 1979-03-09 1980-03-07 A tuner for television receivers

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)

* Cited by examiner, † Cited by third party
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
US20090115525A1 (en) * 2004-10-22 2009-05-07 University Of Florida Research Foundation, Inc. Frequency tunable low noise amplifier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
IT1129731B (en) 1986-06-11
JPS55138930A (en) 1980-10-30
FR2451133B3 (en) 1981-10-30
DE2909319A1 (en) 1980-09-11
DE2909319C2 (en) 1982-10-14
ES489321A1 (en) 1980-08-16
IT8020429A0 (en) 1980-03-07
FR2451133A1 (en) 1980-10-03

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