KR840008902A - TV tuner for broadband reception - Google Patents

TV tuner for broadband reception Download PDF

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Publication number
KR840008902A
KR840008902A KR1019840002648A KR840002648A KR840008902A KR 840008902 A KR840008902 A KR 840008902A KR 1019840002648 A KR1019840002648 A KR 1019840002648A KR 840002648 A KR840002648 A KR 840002648A KR 840008902 A KR840008902 A KR 840008902A
Authority
KR
South Korea
Prior art keywords
coupling capacitor
tuner
broadband reception
circuit
auxiliary
Prior art date
Application number
KR1019840002648A
Other languages
Korean (ko)
Other versions
KR890004205B1 (en
Inventor
켕이찌 세끼
Original Assignee
사에끼 아끼라
샤아프 가부시기 가이샤
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 사에끼 아끼라, 샤아프 가부시기 가이샤 filed Critical 사에끼 아끼라
Publication of KR840008902A publication Critical patent/KR840008902A/en
Application granted granted Critical
Publication of KR890004205B1 publication Critical patent/KR890004205B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

내용 없음No content

Description

광대역 수신용 텔레비젼 튜너TV tuner for broadband reception

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명의 광대역 수신용 텔레비젼 튜너의 한 실시예의 회로도.4 is a circuit diagram of one embodiment of a wideband receiving television tuner of the present invention.

제5도 (a),(b)는 동 실시예에 있어서의 각 밴드수신시의 등가회로도.Fig. 5 (a) and (b) are equivalent circuit diagrams at the time of receiving each band in the same embodiment.

제6도는 본 발명의 광대역 수신용 텔레비젼 튜너의 다른 한 실시예의 회로도.6 is a circuit diagram of another embodiment of a wideband receiving television tuner of the present invention.

Claims (1)

RF 증폭회로와 혼합회로를 결합콘덴서로 결합하는 단간결합회로에 있어서, 밴드절환용 다이오드의 음극과 혼합물로의 입력단과의 사이에 보조결합용 콘덴서를 접속하고, 로우밴드 수신시에 상기 결합 콘덴서와 실질적으로 병렬로 보조결합용 콘덴서를 삽입하도록 한 것을 특징으로 하는 광대역 수신용 텔레비젼 튜너.In an end-to-end coupling circuit combining an RF amplification circuit and a mixing circuit with a coupling capacitor, an auxiliary coupling capacitor is connected between the cathode of the band switching diode and the input terminal to the mixture, and the coupling capacitor and A television tuner for wideband reception, characterized in that an auxiliary coupling capacitor is inserted substantially in parallel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840002648A 1983-05-18 1984-05-16 Television tuner for wideband receive KR890004205B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1983073966U JPS59180545U (en) 1983-05-18 1983-05-18 TV tuner for wideband reception
JP???73966 1983-05-18
JP73966 1983-05-18

Publications (2)

Publication Number Publication Date
KR840008902A true KR840008902A (en) 1984-12-19
KR890004205B1 KR890004205B1 (en) 1989-10-27

Family

ID=30204075

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840002648A KR890004205B1 (en) 1983-05-18 1984-05-16 Television tuner for wideband receive

Country Status (2)

Country Link
JP (1) JPS59180545U (en)
KR (1) KR890004205B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3884409B2 (en) * 2003-06-04 2007-02-21 株式会社東芝 ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE

Also Published As

Publication number Publication date
JPH0136365Y2 (en) 1989-11-06
KR890004205B1 (en) 1989-10-27
JPS59180545U (en) 1984-12-03

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