JPH04361488A - Changeover circuit - Google Patents
Changeover circuitInfo
- Publication number
- JPH04361488A JPH04361488A JP3137421A JP13742191A JPH04361488A JP H04361488 A JPH04361488 A JP H04361488A JP 3137421 A JP3137421 A JP 3137421A JP 13742191 A JP13742191 A JP 13742191A JP H04361488 A JPH04361488 A JP H04361488A
- Authority
- JP
- Japan
- Prior art keywords
- television receiver
- satellite broadcast
- reception function
- broadcast reception
- detection output
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 229940028444 muse Drugs 0.000 description 3
- GMVPRGQOIOIIMI-DWKJAMRDSA-N prostaglandin E1 Chemical compound CCCCC[C@H](O)\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1CCCCCCC(O)=O GMVPRGQOIOIIMI-DWKJAMRDSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Television Systems (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、衛星放送受信機能を備
えたテレビジョン受像機に内蔵する切換回路に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching circuit built into a television receiver equipped with a satellite broadcast receiving function.
【０００２】0002
【従来の技術】近年、衛星放送が開始されてから衛星放
送受信機能を備えた機器がテレビジョン受像機を始め多
く普及してきた。これは衛星放送が難視聴対策だけでは
なく、モアチャンネルとしての位置づけや２４時間放送
の魅力が大きな要因になっている。2. Description of the Related Art In recent years, since the start of satellite broadcasting, many devices, including television receivers, have come into widespread use, including television receivers. This is largely due to the fact that satellite broadcasting is not only a solution to difficult viewing, but also its position as a more channel and the appeal of 24-hour broadcasting.
【０００３】衛星放送の範囲を広げるものとしてハイビ
ジョン放送がある。しかしハイビジョン放送は放送の帯
域を通常の衛星放送の範囲に抑えるためＭＵＳＥ方式を
使って放送することになっている。ＭＵＳＥ方式で送ら
れる衛星放送を衛星放送受信機能を備えたテレビジョン
受像機で受像しようとしてもＭＵＳＥ−ＮＴＳＣのダウ
ンコンバ−タが必要である。[0003] High-definition broadcasting is a method that expands the range of satellite broadcasting. However, high-definition broadcasting is supposed to be broadcast using the MUSE system in order to keep the broadcasting band within the range of normal satellite broadcasting. Even if a television receiver equipped with a satellite broadcast receiving function is to receive satellite broadcasting transmitted in the MUSE system, a MUSE-NTSC down converter is required.
【０００４】ＭＵＳＥ−ＮＴＳＣのダウンコンバ−タは
衛星放送を衛星放送受信機能を備えたテレビジョン受像
機から衛星放送の検波出力信号を入力し、衛星放送受信
機能を備えたテレビジョン受像機へＡＦＣ信号を送る。
検波出力信号からそれがＭＵＳＥ信号であればＮＴＳＣ
信号を作り出しそれをテレビジョン受像機に入力するこ
とにより受像できる。[0004] The MUSE-NTSC down converter inputs the detection output signal of satellite broadcasting from a television receiver equipped with a satellite broadcasting reception function, and AFCs it to the television receiver equipped with a satellite broadcasting reception function. send a signal. If it is a MUSE signal from the detection output signal, it is NTSC.
Images can be received by creating a signal and inputting it to a television receiver.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来のテレビジョン受像機をはじめとする衛星放送
受信機能を備えた機器は衛星放送の検波出力やＡＦＣ入
力を機器内の衛星放送受信回路に対応した接続のみしか
できない。衛星放送受信機能を備えた機器２台とＭＵＳ
Ｅ−ＮＴＳＣダウンコンバ−タを接続するためには必要
な機器側にその都度接続をやり換えなければならないと
いう問題点を有していた。[Problem to be Solved by the Invention] However, devices equipped with a satellite broadcast receiving function, such as conventional television receivers, have a problem in that the satellite broadcast detection output and AFC input are sent to the satellite broadcast receiving circuit within the device. Only compatible connections can be made. Two devices with satellite broadcast reception function and MUS
In order to connect the E-NTSC down converter, there was a problem in that the connection had to be changed each time to the necessary equipment.
【０００６】本発明は上記課題を解決するもので、衛星
放送受信機能を備えたテレビジョン受像機に他の衛星放
送受信機能を備えた機器の衛星放送の検波出力やＡＦＣ
入力を接続する端子を設けるとともにテレビジョン受像
機の内部の検波出力とＡＦＣ入力を他の機器からきたも
のとを切換える衛星放送受信機能を備えたテレビジョン
受像機に内蔵する切換回路を提供することを目的として
いる。[0006] The present invention solves the above-mentioned problem, and it is possible to use a television receiver equipped with a satellite broadcast reception function with the satellite broadcast detection output and AFC of other equipment equipped with a satellite broadcast reception function.
To provide a switching circuit built into a television receiver, which is provided with a terminal for connecting an input, and has a satellite broadcast reception function for switching between the detection output inside the television receiver and the AFC input coming from another device. It is an object.
【０００７】[0007]
【課題を解決するための手段】本発明の切換回路は、衛
星放送受信機能を備えたテレビジョン受像機に設けた端
子に入力される他の衛星放送受信機能を備えた機器の衛
星放送の検波出力とＡＦＣ入力を前記のテレビジョン受
像機の内部で切換えるものである。[Means for Solving the Problems] The switching circuit of the present invention detects satellite broadcasting from other equipment having a satellite broadcasting receiving function that is input to a terminal provided on a television receiver having a satellite broadcasting receiving function. The output and AFC input are switched inside the television receiver.
【０００８】[0008]
【作用】本発明の切換回路によれば、衛星放送受信機能
を備えたテレビジョン受像機に設けた端子に入力される
他の衛星放送受信機能を備えた機器の衛星放送の検波出
力やＡＦＣ入力を前記のテレビジョン受像機の内部で切
換えることにより、１台のＭＵＳＥ−ＮＴＳＣダウンコ
ンバ−タを２台の機器で有効に活用することができるも
のである。[Function] According to the switching circuit of the present invention, the detection output of satellite broadcasting and the AFC input of other devices having the satellite broadcasting receiving function are inputted to the terminal provided on the television receiver equipped with the satellite broadcasting receiving function. By switching the MUSE-NTSC down converter inside the television receiver, one MUSE-NTSC down converter can be effectively used by two devices.
【０００９】[0009]
【実施例】以下、本発明の一実施例について図１を参照
しながら説明する。Embodiment An embodiment of the present invention will be described below with reference to FIG.
【００１０】図に示すように、衛星放送受信機能を備え
たテレビジョン受像機に他の衛星放送受信機能を備えた
機器の衛星放送の検波出力を入力する端子１と逆にＡＦ
Ｃ入力に出力する端子２、前述のテレビジョン受像機の
内部の検波出力とＡＦＣ入力をそれぞれ切換えるスイッ
チ３、４とからなり、スイッチ３、４は連動してａ・ｂ
同じ側に倒れるものであり端子５、６に接続されるＭＵ
ＳＥ−ＮＴＳＣダウンコンバ−タを前述のテレビジョン
受像機に接続するか端子１、２に接続する後述の機器に
するかを選択するものである。As shown in the figure, terminal 1, which inputs the detection output of satellite broadcasting from another device having a satellite broadcasting receiving function, to a television receiver equipped with a satellite broadcasting receiving function, is connected to an AF terminal.
It consists of a terminal 2 that outputs to the C input, and switches 3 and 4 that respectively switch between the detection output inside the television receiver and the AFC input.
MUs that fall on the same side and are connected to terminals 5 and 6
The user selects whether to connect the SE-NTSC down converter to the above-mentioned television receiver or to a device connected to terminals 1 and 2, which will be described later.
【００１１】（この図１において、図２に対応する同一
符号を付すこととし、その詳細な説明は省略する。）(In FIG. 1, the same reference numerals as those in FIG. 2 are given, and detailed explanation thereof will be omitted.)
【
００１２】[
0012
【発明の効果】本発明の切換回路によれば、１台のＭＵ
ＳＥ−ＮＴＳＣダウンコンバ−タを衛星放送受信機能を
備えたテレビジョン受像機と他の衛星放送受信機能を備
えた機器との間で接続を替えることなく有効に使うこと
ができ、操作性の良いテレビジョン受像機を提供できる
。[Effects of the Invention] According to the switching circuit of the present invention, one MU
The SE-NTSC down converter can be used effectively between a television receiver equipped with a satellite broadcast reception function and other equipment equipped with a satellite broadcast reception function without changing the connection, making it easy to operate. We can provide television receivers.
【図１】本発明の実施例における切換回路の接続図[Fig. 1] Connection diagram of a switching circuit in an embodiment of the present invention
【図
２】従来の衛星放送受信機能を備えたテレビジョン受像
機とＭＵＳＥ−ＮＴＳＣダウンコンバ−タとの接続図[Figure 2] Connection diagram between a television receiver equipped with a conventional satellite broadcast reception function and a MUSE-NTSC down converter
１ 他の衛星放送受信機能を備えた機器からの検波出
力を接続する端子
２ 他の衛星放送受信機能を備えた機器へのＡＦＣ信
号を接続する端子
３ 他の衛星放送受信機能を備えた機器からの検波出
力と衛星放送受信機能を備えたテレビジョン受像機の検
波出力を切換えるスイッチ
４ 他の衛星放送受信機能を備えた機器へのＡＦＣ信
号と衛星放送受信機能を備えたテレビジョン受像機への
ＡＦＣ信号を切換えるスイッチ
５ ＭＵＳＥ−ＮＴＳＣダウンコンバ−タに検波出力
を接続する端子
６ ＭＵＳＥ−ＮＴＳＣダウンコンバ−タからのＡＦ
Ｃ信号を接続する端子1 Terminal for connecting the detection output from another device with satellite broadcast reception function 2 Terminal for connecting AFC signal to another device with satellite broadcast reception function 3 Terminal for connecting the AFC signal from another device with satellite broadcast reception function Switch 4 for switching the detection output between the detection output of a television receiver equipped with a satellite broadcast reception function and the detection output of a television receiver equipped with a satellite broadcast reception function. Switch 5 for switching the AFC signal Terminal 6 for connecting the detection output to the MUSE-NTSC down converter AF from the MUSE-NTSC down converter
Terminal for connecting C signal
Claims (1)
ン受像機とその他の衛星放送受信機能を備えた機器との
間で、１台のＭＵＳＥ−ＮＴＳＣダウンコンバ−タに接
続する検波出力とＡＦＣ入力を切換て使用できる衛星放
送受信機能を備えたテレビジョン受像機に内蔵する切換
回路。[Claim 1] Detection output and AFC input connected to one MUSE-NTSC down converter between a television receiver equipped with a satellite broadcast reception function and other equipment equipped with a satellite broadcast reception function. A switching circuit built into a television receiver equipped with a satellite broadcast reception function that can be used by switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137421A JPH04361488A (en) | 1991-06-10 | 1991-06-10 | Changeover circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137421A JPH04361488A (en) | 1991-06-10 | 1991-06-10 | Changeover circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04361488A true JPH04361488A (en) | 1992-12-15 |
Family
ID=15198241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3137421A Pending JPH04361488A (en) | 1991-06-10 | 1991-06-10 | Changeover circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04361488A (en) |
-
1991
- 1991-06-10 JP JP3137421A patent/JPH04361488A/en active Pending
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