KR890018301U - 전자 동조 튜너에 있어서의 국부발진 회로 - Google Patents

전자 동조 튜너에 있어서의 국부발진 회로

Info

Publication number
KR890018301U
KR890018301U KR2019880016654U KR880016654U KR890018301U KR 890018301 U KR890018301 U KR 890018301U KR 2019880016654 U KR2019880016654 U KR 2019880016654U KR 880016654 U KR880016654 U KR 880016654U KR 890018301 U KR890018301 U KR 890018301U
Authority
KR
South Korea
Prior art keywords
oscillation circuit
local oscillation
electronic tuner
tuner
electronic
Prior art date
Application number
KR2019880016654U
Other languages
English (en)
Other versions
KR910001650Y1 (ko
Inventor
마사끼 야마모또
Original Assignee
알프스덴기 가부시기가이샤
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 알프스덴기 가부시기가이샤 filed Critical 알프스덴기 가부시기가이샤
Publication of KR890018301U publication Critical patent/KR890018301U/ko
Application granted granted Critical
Publication of KR910001650Y1 publication Critical patent/KR910001650Y1/ko

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
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • 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
    • 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
KR2019880016654U 1988-02-10 1988-10-10 전자 동조 튜너에 있어서의 국부발진 회로 KR910001650Y1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16910 1988-02-10
JP1988016910U JPH0644185Y2 (ja) 1988-02-10 1988-02-10 電子同調チューナにおける局部発振回路

Publications (2)

Publication Number Publication Date
KR890018301U true KR890018301U (ko) 1989-09-09
KR910001650Y1 KR910001650Y1 (ko) 1991-03-18

Family

ID=11929295

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880016654U KR910001650Y1 (ko) 1988-02-10 1988-10-10 전자 동조 튜너에 있어서의 국부발진 회로

Country Status (3)

Country Link
JP (1) JPH0644185Y2 (ko)
KR (1) KR910001650Y1 (ko)
GB (1) GB2215929B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100384209B1 (ko) * 1995-01-23 2003-08-21 알씨에이 라이센싱 코오포레이숀 단일의국부발진기를가진광주파수스펙트럼텔레비전튜너

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0434581Y2 (ko) * 1987-03-24 1992-08-18
DE3939742C1 (ko) * 1989-12-01 1990-12-06 Telefunken Electronic Gmbh, 7100 Heilbronn, De
DE4314424A1 (de) * 1993-05-03 1994-11-10 Philips Patentverwaltung Oszillator
US5973519A (en) * 1997-01-20 1999-10-26 Nec Corporation Voltage controlled oscillator circuit capable of switching between oscillation frequency bands
GB2337382B (en) * 1998-05-16 2000-12-13 Motorola Ltd Voltage controlled oscillator
EP1867045A2 (en) * 2005-03-29 2007-12-19 Nxp B.V. Receiver having a tuning capacitance

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158232U (ko) * 1981-03-30 1982-10-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100384209B1 (ko) * 1995-01-23 2003-08-21 알씨에이 라이센싱 코오포레이숀 단일의국부발진기를가진광주파수스펙트럼텔레비전튜너

Also Published As

Publication number Publication date
GB8903026D0 (en) 1989-03-30
JPH0644185Y2 (ja) 1994-11-14
GB2215929A (en) 1989-09-27
GB2215929B (en) 1992-01-29
KR910001650Y1 (ko) 1991-03-18
JPH01126628U (ko) 1989-08-30

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