JPH04361496A - Changeover circuit - Google Patents
Changeover circuitInfo
- Publication number
- JPH04361496A JPH04361496A JP3137424A JP13742491A JPH04361496A JP H04361496 A JPH04361496 A JP H04361496A JP 3137424 A JP3137424 A JP 3137424A JP 13742491 A JP13742491 A JP 13742491A JP H04361496 A JPH04361496 A JP H04361496A
- Authority
- JP
- Japan
- Prior art keywords
- satellite broadcast
- reception function
- broadcast reception
- detection output
- satellite
- 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
- 238000010586 diagram Methods 0.000 description 2
- 229940028444 muse Drugs 0.000 description 2
- 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 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
えた機器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 equipment having 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機器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 devices equipped with a satellite broadcast receiving function have become widespread. 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機器で受像し
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 device equipped with a satellite broadcast reception function is to receive satellite broadcasts sent 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機器から衛星放送
の検波出力信号を入力し、衛星放送受信機能を備えた機
器へＡＦＣ信号を送る。検波出力信号からそれがＭＵＳ
Ｅ信号であればＮＴＳＣ信号を作り出しそれを機器に入
力することにより受像できる。The MUSE-NTSC down converter inputs a detected output signal of satellite broadcasting from a device equipped with a satellite broadcast receiving function, and sends an AFC signal to the device equipped with a satellite broadcast receiving function. From the detection output signal, it is MUS
If it is an E signal, it can be received by creating an NTSC signal and inputting it to the device.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の機器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ＭＵＳＥ−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, including such conventional devices, have to connect the satellite broadcast detection output and AFC input in a manner compatible with the satellite broadcast receiving circuit within the device. I can only do it. In order to connect two devices equipped with a satellite broadcast receiving function and a MUSE-NTSC down converter, there is a problem in that the connection must be changed each time to the necessary devices.
【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機器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機器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
能を備えた機器に内蔵する切換回路を提供することを目
的としている。The present invention solves the above-mentioned problems by providing a device with a satellite broadcast reception function with a terminal for connecting the satellite broadcast detection output and AFC input of another device with a satellite broadcast reception function, and It is an object of the present invention to provide a switching circuit built into a device having a satellite broadcast receiving function that switches between the internal detection output and the AFC input coming from another device.
【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機器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入力を前記の機器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 is capable of switching between the detection output of satellite broadcasting of a device having a satellite broadcasting receiving function and the detection output of a satellite broadcasting inputted to a terminal provided on a device having a satellite broadcasting receiving function. The input is switched inside the device.
【０００８】[0008]
【作用】本発明の切換回路によれば、衛星放送受信機能
を備えた機器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
を前記の機器の内部で切換えることにより、１台のＭＵ
ＳＥ−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。[Operation] According to the switching circuit of the present invention, the satellite broadcast detection output or AFC input of another device having the satellite broadcast receiving function that is input to the terminal provided on the device having the satellite broadcast receiving function can be changed to the above-mentioned one. By switching inside the device, one MU
The SE-NTSC down converter can be used effectively with 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
た機器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ＡＦＣ入力に出力す
る端子２、前述の機器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ＭＵＳＥ−ＮＴＳＣダウンコンバ−
タを前述の機器に接続するか端子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, a terminal 1 inputs the satellite broadcast detection output of another device equipped with the satellite broadcast receiving function to a device equipped with the satellite broadcast receiving function, and a terminal 2 that outputs it to the AFC input, conversely, It consists of switches 3 and 4 that respectively switch the internal detection output and AFC input of the above-mentioned equipment. Switches 3 and 4 are interlocked and tilt to the same side of a and b, and MUSE- is connected to terminals 5 and 6. NTSC down converter
This selects whether to connect the terminal to the device described above or to the 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
備えた機器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
の良い機器を提供できる。[Effects of the Invention] According to the switching circuit of the present invention, one MU
SE-NTSC down converter can be used effectively between equipment equipped with satellite broadcast reception function and other equipment equipped with satellite broadcast reception function without changing connections, providing equipment with good operability. can.
【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機器とＭＵＳＥ−
ＮＴＳＣダウンコンバ−タとの接続図[Figure 2] Equipment with conventional satellite broadcast reception function and MUSE-
Connection diagram with 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機器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機器への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 between the detection output of the device and the detection output of a device equipped with a satellite broadcast reception function Switch 5 for switching between an AFC signal to another device equipped with a satellite broadcast reception function and an AFC signal to a device equipped with a satellite broadcast reception function Terminal 6 for connecting detection output to MUSE-NTSC down converter AF from MUSE-NTSC down converter
Terminal for connecting C signal
Claims (1)
衛星放送受信機能を備えた機器との間で、１台のＭＵＳ
Ｅ−ＮＴＳＣダウンコンバ−タに接続する検波出力とＡ
ＦＣ入力を切換て使用できる衛星放送受信機能を備えた
機器に内蔵する切換回路。Claim 1: One MUS is used between a device equipped with a satellite broadcast reception function and another device equipped with a satellite broadcast reception function.
Detection output and A connected to E-NTSC down converter
A switching circuit built into a device equipped with a satellite broadcast reception function that can be used by switching the FC input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137424A JPH04361496A (en) | 1991-06-10 | 1991-06-10 | Changeover circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137424A JPH04361496A (en) | 1991-06-10 | 1991-06-10 | Changeover circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04361496A true JPH04361496A (en) | 1992-12-15 |
Family
ID=15198309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3137424A Pending JPH04361496A (en) | 1991-06-10 | 1991-06-10 | Changeover circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04361496A (en) |
-
1991
- 1991-06-10 JP JP3137424A patent/JPH04361496A/en active Pending
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