WO1987007991A1 - Local oscillation apparatus - Google Patents

Local oscillation apparatus Download PDF

Info

Publication number
WO1987007991A1
WO1987007991A1 PCT/JP1987/000397 JP8700397W WO8707991A1 WO 1987007991 A1 WO1987007991 A1 WO 1987007991A1 JP 8700397 W JP8700397 W JP 8700397W WO 8707991 A1 WO8707991 A1 WO 8707991A1
Authority
WO
WIPO (PCT)
Prior art keywords
variable
diode
capacity
vcc
local oscillation
Prior art date
Application number
PCT/JP1987/000397
Other languages
English (en)
French (fr)
Inventor
Hideyuki Ikuhara
Akira Usui
Kazuhiko Kubo
Hiroyuki Nagai
Tetsuo Kutsuki
Original Assignee
Matsushita Electric Industrial Co., Ltd.
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 Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to GB8803235A priority Critical patent/GB2199709B/en
Priority to KR1019880700172A priority patent/KR900007928B1/ko
Publication of WO1987007991A1 publication Critical patent/WO1987007991A1/ja

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • 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
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1805—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a coaxial resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
PCT/JP1987/000397 1986-06-20 1987-06-18 Local oscillation apparatus WO1987007991A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8803235A GB2199709B (en) 1986-06-20 1987-06-18 Local oscillator
KR1019880700172A KR900007928B1 (ko) 1986-06-20 1987-06-18 국부발진장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61145291A JPH0787345B2 (ja) 1986-06-20 1986-06-20 局部発振装置
JP61/145291 1986-06-20

Publications (1)

Publication Number Publication Date
WO1987007991A1 true WO1987007991A1 (en) 1987-12-30

Family

ID=15381744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1987/000397 WO1987007991A1 (en) 1986-06-20 1987-06-18 Local oscillation apparatus

Country Status (6)

Country Link
US (1) US4835492A (ja)
JP (1) JPH0787345B2 (ja)
KR (1) KR900007928B1 (ja)
DE (2) DE3790316T (ja)
GB (1) GB2199709B (ja)
WO (1) WO1987007991A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI914763A0 (fi) * 1991-10-09 1991-10-09 Nokia Mobile Phones Ltd Kompensering av en spaenningsstyrd olineaer komponent i en radiotelefon.
US5418503A (en) * 1993-03-08 1995-05-23 Ericsson Ge Mobile Communications Inc. Compensation of transient frequency drift in oscillator circuits
EP1638202A1 (en) * 2004-09-21 2006-03-22 Dialog Semiconductor GmbH Oscillator with controlled current source

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5181055U (ja) * 1974-12-20 1976-06-28
JPS54122705U (ja) * 1978-02-16 1979-08-28
JPS5927614A (ja) * 1982-08-07 1984-02-14 Matsushita Electric Ind Co Ltd Ａｆｃ回路調整装置
JPS6074335U (ja) * 1983-10-27 1985-05-24 三洋電機株式会社 ラジオ受信機のａｆｃ回路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2129129B2 (de) * 1971-08-11 1979-03-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur erzeugung einer stabilisierten abstimmspannung fuer geraete der elektrischen nachrichtentechnik und zur automatischen nachstimmung durch eine steuerspannung
JPS54122705A (en) * 1978-03-15 1979-09-22 Youji Kikata Producing lumber from small diameter wood
DE3304181A1 (de) * 1982-10-05 1984-04-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Afc-abstimmschaltung
JPS6221304A (ja) * 1985-07-22 1987-01-29 Matsushita Electric Ind Co Ltd 局部発振器
JPH05181055A (ja) * 1991-12-27 1993-07-23 Olympus Optical Co Ltd 焦点検出装置
JPH0674335A (ja) * 1992-08-26 1994-03-15 Kubota Corp ベルト式変速装置
JPH0762853B2 (ja) * 1993-02-03 1995-07-05 日本電気株式会社 状態遷移図マクロ接続システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5181055U (ja) * 1974-12-20 1976-06-28
JPS54122705U (ja) * 1978-02-16 1979-08-28
JPS5927614A (ja) * 1982-08-07 1984-02-14 Matsushita Electric Ind Co Ltd Ａｆｃ回路調整装置
JPS6074335U (ja) * 1983-10-27 1985-05-24 三洋電機株式会社 ラジオ受信機のａｆｃ回路

Also Published As

Publication number Publication date
KR880701493A (ko) 1988-07-27
GB8803235D0 (en) 1988-03-30
DE3790316T (ja) 1988-06-23
DE3790316C2 (ja) 1991-12-12
US4835492A (en) 1989-05-30
GB2199709B (en) 1990-04-18
JPH0787345B2 (ja) 1995-09-20
KR900007928B1 (ko) 1990-10-23
JPS632416A (ja) 1988-01-07
GB2199709A (en) 1988-07-13

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