IT1171675B - Oscillatore locale uhf, a frequenza variabile, per ricevitore televisivo - Google Patents

Oscillatore locale uhf, a frequenza variabile, per ricevitore televisivo

Info

Publication number
IT1171675B
IT1171675B IT21144/83A IT2114483A IT1171675B IT 1171675 B IT1171675 B IT 1171675B IT 21144/83 A IT21144/83 A IT 21144/83A IT 2114483 A IT2114483 A IT 2114483A IT 1171675 B IT1171675 B IT 1171675B
Authority
IT
Italy
Prior art keywords
local oscillator
television receiver
variable frequency
uhf local
uhf
Prior art date
Application number
IT21144/83A
Other languages
English (en)
Other versions
IT8321144A0 (it
IT8321144A1 (it
Inventor
Jeffrey Gui Lea
David John Carlson
Original Assignee
Rca Corp
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 Rca Corp filed Critical Rca Corp
Publication of IT8321144A0 publication Critical patent/IT8321144A0/it
Publication of IT8321144A1 publication Critical patent/IT8321144A1/it
Application granted granted Critical
Publication of IT1171675B publication Critical patent/IT1171675B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1293—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator having means for achieving a desired tuning characteristic, e.g. linearising the frequency characteristic across the tuning voltage range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
IT21144/83A 1982-05-24 1983-05-17 Oscillatore locale uhf, a frequenza variabile, per ricevitore televisivo IT1171675B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/381,735 US4494081A (en) 1982-05-24 1982-05-24 Variable frequency U. H. F. local oscillator for a television receiver

Publications (3)

Publication Number Publication Date
IT8321144A0 IT8321144A0 (it) 1983-05-17
IT8321144A1 IT8321144A1 (it) 1984-11-17
IT1171675B true IT1171675B (it) 1987-06-10

Family

ID=23506178

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21144/83A IT1171675B (it) 1982-05-24 1983-05-17 Oscillatore locale uhf, a frequenza variabile, per ricevitore televisivo

Country Status (9)

Country Link
US (1) US4494081A (it)
JP (1) JPS58222601A (it)
KR (1) KR910002979B1 (it)
CA (1) CA1204175A (it)
DE (1) DE3318536C2 (it)
FR (1) FR2527406B1 (it)
GB (1) GB2120886B (it)
HK (1) HK59791A (it)
IT (1) IT1171675B (it)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038903A (ja) * 1983-08-11 1985-02-28 Matsushita Electric Ind Co Ltd 局部発振回路
JPS6129519U (ja) * 1984-07-26 1986-02-22 ソニー株式会社 可変容量素子用電圧供給回路
US4625183A (en) * 1985-06-21 1986-11-25 Capetronic (Bsr) Ltd. Low-cost VCO using lumped elements in microwave band
US4797638A (en) * 1985-07-30 1989-01-10 Matsushita Electric Industrial Co., Ltd. Oscillator including a transistor used both as constant current source and amplifier
JP2580116B2 (ja) * 1985-12-16 1997-02-12 ソニー株式会社 Ｉｃ化高周波可変周波数発振回路
US4709409A (en) * 1986-08-25 1987-11-24 Ma John Y TVRO receiver with surface mounted high frequency voltage-controlled oscillator
JPS6355632U (it) * 1986-09-29 1988-04-14
US4743866A (en) * 1986-11-26 1988-05-10 Rca Corporation Wide range oscillator
US4843358A (en) * 1987-05-19 1989-06-27 General Electric Company Electrically positionable short-circuits
JPH01246906A (ja) * 1988-03-29 1989-10-02 Nec Eng Ltd 電圧制御発振器
KR0153379B1 (ko) * 1995-09-26 1998-11-16 김광호 디지탈 무선통신시스템의 업/다운컨버터용 전압제어발진기
GB2339984B (en) * 1998-07-24 2002-05-15 Nec Technologies Multi-band voltage controlled oscillator
US7221243B2 (en) * 2001-04-11 2007-05-22 Kyocera Wireless Corp. Apparatus and method for combining electrical signals
US7164329B2 (en) 2001-04-11 2007-01-16 Kyocera Wireless Corp. Tunable phase shifer with a control signal generator responsive to DC offset in a mixed signal
US7394430B2 (en) * 2001-04-11 2008-07-01 Kyocera Wireless Corp. Wireless device reconfigurable radiation desensitivity bracket systems and methods
US7746292B2 (en) * 2001-04-11 2010-06-29 Kyocera Wireless Corp. Reconfigurable radiation desensitivity bracket systems and methods
DE60230498D1 (de) * 2001-04-11 2009-02-05 Kyocera Wireless Corp Abstimmbarer multiplexer
US7154440B2 (en) * 2001-04-11 2006-12-26 Kyocera Wireless Corp. Phase array antenna using a constant-gain phase shifter
US7174147B2 (en) * 2001-04-11 2007-02-06 Kyocera Wireless Corp. Bandpass filter with tunable resonator
US6690251B2 (en) * 2001-04-11 2004-02-10 Kyocera Wireless Corporation Tunable ferro-electric filter
US7071776B2 (en) 2001-10-22 2006-07-04 Kyocera Wireless Corp. Systems and methods for controlling output power in a communication device
US7176845B2 (en) * 2002-02-12 2007-02-13 Kyocera Wireless Corp. System and method for impedance matching an antenna to sub-bands in a communication band
US7184727B2 (en) * 2002-02-12 2007-02-27 Kyocera Wireless Corp. Full-duplex antenna system and method
US7180467B2 (en) * 2002-02-12 2007-02-20 Kyocera Wireless Corp. System and method for dual-band antenna matching
US7720443B2 (en) 2003-06-02 2010-05-18 Kyocera Wireless Corp. System and method for filtering time division multiple access telephone communications
US7248845B2 (en) * 2004-07-09 2007-07-24 Kyocera Wireless Corp. Variable-loss transmitter and method of operation
US7548762B2 (en) * 2005-11-30 2009-06-16 Kyocera Corporation Method for tuning a GPS antenna matching network

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265238B (de) * 1965-04-24 1968-04-04 Telefunken Patent Parallelschwingkreis fuer eine Frequenzmodulationseinrichtung
DE1591121A1 (de) * 1966-03-07 1970-05-14 Fujitsu Ltd Frequenzmodulator
DE1539858B1 (de) * 1966-04-04 1970-04-23 Itt Ind Gmbh Deutsche Schwingkreisanordnung zum Erhoehen der Kapazitaetsvariation von Kapazitaetsdioden
FR1493522A (fr) * 1966-05-27 1967-09-01 Thomson Houston Comp Francaise Perfectionnements aux dispositifs de moudlation
US3492514A (en) * 1967-04-17 1970-01-27 Motorola Inc Voltage variable capacitance range extender
GB1232202A (it) * 1967-08-14 1971-05-19
DE1791070B2 (de) * 1968-09-06 1976-11-25 Philips Patentverwaltung Gmbh, 2000 Hamburg Eingangsschaltung fuer autorundfunkempfaenger
DE2130095C3 (de) * 1970-07-10 1974-11-14 Autophon Ag, Solothurn (Schweiz) Schaltungsanordnung zur Erzeugung einer in ihrer Frequenz intermittierend modulierbaren Hochfrequenzschwingung hoher Frequenzgenauigkeit
JPS50104553A (it) * 1974-01-18 1975-08-18
US4011526A (en) * 1976-01-05 1977-03-08 Motorola, Inc. Temperature compensated surface acoustic wave oscillator
US4074209A (en) * 1976-12-13 1978-02-14 Rca Corporation Wide range frequency modulation of narrow loop bandwidth phase-locked oscillators
JPS54109301A (en) * 1978-02-15 1979-08-27 Matsushita Electric Ind Co Ltd Electronic tuner circuit
JPS6024023Y2 (ja) * 1979-05-18 1985-07-17 三洋電機株式会社 自動周波数制御回路
US4316108A (en) * 1979-09-25 1982-02-16 Rogers Jr Walter M Tracking filter for FM threshold extension
DE2945546C2 (de) * 1979-11-10 1983-09-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung für abstimmbare HF-Kreise
FR2494929B1 (fr) * 1980-11-27 1986-04-11 Orega Electro Mecanique Oscillateur hyperfrequence a transistor, accordable par tension
JPS57101402A (en) * 1980-12-16 1982-06-24 Matsushita Electric Ind Co Ltd Voltage controlled variable frequency oscillator
US4375621A (en) * 1981-03-02 1983-03-01 Ael Microtel, Ltd. Circuit for linearizing frequency modulated oscillators on microstrip
US4402089A (en) * 1981-09-16 1983-08-30 Rca Corporation Television tuning system with electronic frequency adjustment apparatus

Also Published As

Publication number Publication date
CA1204175A (en) 1986-05-06
US4494081A (en) 1985-01-15
GB2120886A (en) 1983-12-07
KR910002979B1 (ko) 1991-05-11
IT8321144A0 (it) 1983-05-17
GB2120886B (en) 1986-08-20
HK59791A (en) 1991-08-09
DE3318536C2 (de) 1987-01-02
JPH0412642B2 (it) 1992-03-05
DE3318536A1 (de) 1983-11-24
FR2527406B1 (fr) 1987-11-27
GB8312303D0 (en) 1983-06-08
FR2527406A1 (fr) 1983-11-25
IT8321144A1 (it) 1984-11-17
JPS58222601A (ja) 1983-12-24
KR840004989A (ko) 1984-10-31

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Effective date: 19970529