JPS6323880U - - Google Patents

Info

Publication number
JPS6323880U
JPS6323880U JP11819286U JP11819286U JPS6323880U JP S6323880 U JPS6323880 U JP S6323880U JP 11819286 U JP11819286 U JP 11819286U JP 11819286 U JP11819286 U JP 11819286U JP S6323880 U JPS6323880 U JP S6323880U
Authority
JP
Japan
Prior art keywords
section
signal
attenuation
attenuation control
frequency conversion
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP11819286U
Other languages
Japanese (ja)
Other versions
JP2518865Y2 (en
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 filed Critical
Priority to JP1986118192U priority Critical patent/JP2518865Y2/en
Publication of JPS6323880U publication Critical patent/JPS6323880U/ja
Application granted granted Critical
Publication of JP2518865Y2 publication Critical patent/JP2518865Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの考案によるチヤンネル選択装置を
実施した衛星放送受信用コンバータの1実施例の
ブロツク図、第2図は同実施例の周波数調整部及
び減衰制御部の詳細な回路図、第3図は従来のチ
ヤンネル選択装置を用いた衛星放送受信用チユー
ナのブロツク図である。 2……高周波増幅/周波数変換部、6……周波
数調整部、10……チヤンネル選択部、26……
減衰部。
Fig. 1 is a block diagram of an embodiment of a satellite broadcast receiving converter implementing a channel selection device according to this invention, Fig. 2 is a detailed circuit diagram of the frequency adjustment section and attenuation control section of the same embodiment, and Fig. 3 1 is a block diagram of a satellite broadcast receiving tuner using a conventional channel selection device. 2... High frequency amplification/frequency conversion section, 6... Frequency adjustment section, 10... Channel selection section, 26...
damping section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数のチヤンネル映像信号のうち任意のものを
選択するための選択信号を生成するチヤンネル選
択部と、周波数変換部が上記選択されたチヤンネ
ルの映像信号を中間周波数信号に変換するように
上記選択信号に応じて上記周波数変換部に周波数
調整信号を供給する周波数調整部と、上記周波数
変換部よりも後段の処理部に設けられており減衰
制御信号の大きさに応じて減衰量を変化させる減
衰部に上記減衰制御信号を供給する減衰制御部と
を有し、上記減衰制御部を上記選択信号に応じて
上記減衰制御信号の大きさを変化させるように構
成したことを特徴とするチヤンネル選択装置。
a channel selection section that generates a selection signal for selecting any one of the plurality of channel video signals; and a frequency conversion section that converts the video signal of the selected channel into an intermediate frequency signal. a frequency adjustment section that supplies a frequency adjustment signal to the frequency conversion section according to the frequency conversion section; and an attenuation section that is provided in a processing section subsequent to the frequency conversion section and changes the amount of attenuation according to the magnitude of the attenuation control signal. and an attenuation control section that supplies the attenuation control signal, the attenuation control section being configured to change the magnitude of the attenuation control signal in accordance with the selection signal.
JP1986118192U 1986-07-30 1986-07-30 Channel selection device Expired - Lifetime JP2518865Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986118192U JP2518865Y2 (en) 1986-07-30 1986-07-30 Channel selection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986118192U JP2518865Y2 (en) 1986-07-30 1986-07-30 Channel selection device

Publications (2)

Publication Number Publication Date
JPS6323880U true JPS6323880U (en) 1988-02-17
JP2518865Y2 JP2518865Y2 (en) 1996-11-27

Family

ID=31004415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986118192U Expired - Lifetime JP2518865Y2 (en) 1986-07-30 1986-07-30 Channel selection device

Country Status (1)

Country Link
JP (1) JP2518865Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326282A (en) * 1991-04-25 1992-11-16 Maspro Denkoh Corp Satellite signal receiver

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084079A (en) * 1983-10-14 1985-05-13 Matsushita Electric Ind Co Ltd Emergency alarm broadcast receiver
JPS61111263U (en) * 1984-12-25 1986-07-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084079A (en) * 1983-10-14 1985-05-13 Matsushita Electric Ind Co Ltd Emergency alarm broadcast receiver
JPS61111263U (en) * 1984-12-25 1986-07-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326282A (en) * 1991-04-25 1992-11-16 Maspro Denkoh Corp Satellite signal receiver

Also Published As

Publication number Publication date
JP2518865Y2 (en) 1996-11-27

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