KR890005774U - Medium frequency circuit of CATV tuner - Google Patents

Medium frequency circuit of CATV tuner

Info

Publication number
KR890005774U
KR890005774U KR2019870014649U KR870014649U KR890005774U KR 890005774 U KR890005774 U KR 890005774U KR 2019870014649 U KR2019870014649 U KR 2019870014649U KR 870014649 U KR870014649 U KR 870014649U KR 890005774 U KR890005774 U KR 890005774U
Authority
KR
South Korea
Prior art keywords
frequency circuit
medium frequency
catv tuner
catv
tuner
Prior art date
Application number
KR2019870014649U
Other languages
Korean (ko)
Other versions
KR900010616Y1 (en
Inventor
이효범
Original Assignee
삼성전기 주식회사
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 삼성전기 주식회사 filed Critical 삼성전기 주식회사
Priority to KR2019870014649U priority Critical patent/KR900010616Y1/en
Publication of KR890005774U publication Critical patent/KR890005774U/en
Application granted granted Critical
Publication of KR900010616Y1 publication Critical patent/KR900010616Y1/en

Links

Classifications

    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
KR2019870014649U 1987-08-31 1987-08-31 Inter frequenycy of c.a.t.v. tuner KR900010616Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870014649U KR900010616Y1 (en) 1987-08-31 1987-08-31 Inter frequenycy of c.a.t.v. tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870014649U KR900010616Y1 (en) 1987-08-31 1987-08-31 Inter frequenycy of c.a.t.v. tuner

Publications (2)

Publication Number Publication Date
KR890005774U true KR890005774U (en) 1989-04-21
KR900010616Y1 KR900010616Y1 (en) 1990-11-23

Family

ID=19267159

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870014649U KR900010616Y1 (en) 1987-08-31 1987-08-31 Inter frequenycy of c.a.t.v. tuner

Country Status (1)

Country Link
KR (1) KR900010616Y1 (en)

Also Published As

Publication number Publication date
KR900010616Y1 (en) 1990-11-23

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee