JP3053692B2 - Image signal reception limiting device - Google Patents
Image signal reception limiting deviceInfo
- Publication number
- JP3053692B2 JP3053692B2 JP4116995A JP11699592A JP3053692B2 JP 3053692 B2 JP3053692 B2 JP 3053692B2 JP 4116995 A JP4116995 A JP 4116995A JP 11699592 A JP11699592 A JP 11699592A JP 3053692 B2 JP3053692 B2 JP 3053692B2
- Authority
- JP
- Japan
- Prior art keywords
- image signal
- receiving
- signal
- radio wave
- reception
- 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.)
- Expired - Lifetime
Links
Landscapes
- Details Of Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は画像信号受像装置に関
し、詳しくは特定の番組についての受像を遮断する画像
信号受像制限装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image signal receiving apparatus, and more particularly, to an image signal receiving limiting apparatus for blocking image reception of a specific program.
【０００２】[0002]
【従来の技術】テレビ番組のうちで、子供の教育上好ま
しくない番組などについて、意図的に特定の番組の受像
を制限する方法としては、主として以下のものが用いら
れてきた。図２は、ヨ−ロッパで行われている方式の一
例を示す図である。マイクロプロセッサ３１が、特定の
チャネルの周波数帯の選局を制限するためにＰＬＬ選択
回路３２に対してチャネル選択信号を出力しないことに
よりアンテナ３４より信号ミキサ−部３６に入力された
テレビ信号の受像が制限される構成となっている。この
制御信号は、外部より選局キ−３３を用いて入力され
る。2. Description of the Related Art Among television programs, the following methods have been mainly used as a method for intentionally restricting the reception of a specific program, such as a program which is not preferable for children's education. FIG. 2 is a diagram showing an example of a system performed in Europe. Since the microprocessor 31 does not output a channel selection signal to the PLL selection circuit 32 in order to limit the selection of a frequency band of a specific channel, the reception of the television signal input to the signal mixer unit 36 from the antenna 34 Is restricted. This control signal is input from outside using the tuning key 33.
【０００３】[0003]
【発明が解決しようとする課題】しかし、この方式を行
うためには選局を制限する機能を持つマイクロプロセッ
サが、あらかじめテレビジョン本体に組み込まれている
必要がある。テレビジョン本体がこの機能を持たない場
合には、選局回路の特定のチャネルに対応する設定を取
り消す操作を行っていた。このやりかたは、特別な装置
を必要としない点では、有利であるが、そのつど操作を
行う煩わしさを伴うものであった。従って、複数の番組
の受信を制限するために、あらかじめプログラムを設定
しておくことは、事実上困難であった。However, in order to perform this method, it is necessary that a microprocessor having a function of limiting channel selection be incorporated in the television body in advance. If the television body does not have this function, the operation of canceling the setting corresponding to the specific channel of the channel selection circuit has been performed. Although this method is advantageous in that no special device is required, it involves a troublesome operation for each operation. Therefore, it is practically difficult to set a program in advance to restrict reception of a plurality of programs.
【０００４】本発明は上記の問題点に着目してなされた
ものであり、特定の番組についての受像制限を容易に実
現するものである。[0004] The present invention has been made in view of the above-mentioned problems, and is intended to easily realize restriction of image reception for a specific program.
【０００５】本発明に係る画像信号受像制限装置は、テ
レビ受像装置とは別体になっており、かつアンテナと該
テレビ受像装置との間に接続することにより画像信号を
制限して出力する画像信号受像制限装置であって、リモ
ートコントロール装置からの番組指定用信号を受信する
受信手段と、前記テレビ受像装置の局部発振回路からの
漏洩電波を受信する漏洩電波受信手段と、前記受信手段
で受信した番組指定用信号のチャンネル情報と前記漏洩
電波受信手段で受信したチャンネル情報との比較をする
制御手段と、該制御手段による比較の結果制御手段から
発せられる信号により画像信号をオンオフするスイッチ
手段とを内蔵することを特徴とする。[0005] An image signal reception limiting device according to the present invention is separate from a television reception device, and is connected between an antenna and the television reception device to restrict an image signal and output an image signal. A signal reception limiting device, receiving means for receiving a program designating signal from a remote control device, leaked radio wave receiving means for receiving leaked radio waves from a local oscillation circuit of the television receiver, and reception by the receiving means. Control means for comparing the channel information of the designated program designation signal with the channel information received by the leaked radio wave receiving means; It is characterized by incorporating.
【０００６】[0006]
【作用】以下、本発明の作用を説明する。入力された画
像信号は、画像信号受像制限装置を経由して、画像信号
受像手段に入る。受像制限を行う番組は、リモ−トコン
トロ−ル装置によって受信手段に入力される。The operation of the present invention will be described below. The input image signal enters the image signal receiving means via the image signal reception limiting device. The program for which image reception is to be restricted is input to the receiving means by the remote control device.
【０００７】リモ−トコントロ−ル装置によって入力設
定された時間内に、該当するチャンネルの画像信号が画
像信号受像手段で受信されると、画像信号受像手段で発
信された局部発信信号が、漏洩電波受信手段によって検
出され、制御手段に伝達される。制御手段は、この信号
とリモ−トコントロ−ル装置によって入力された内容と
を比較し、一致すればスイッチ手段に遮断信号を送り、
画像信号の出力を遮断する。When the image signal of the corresponding channel is received by the image signal receiving means within the time set and input by the remote control device, the local transmission signal transmitted by the image signal receiving means is changed to a leaked radio wave. Detected by the receiving means and transmitted to the control means. The control means compares this signal with the content inputted by the remote control device, and if they match, sends a cutoff signal to the switch means,
Cut off the output of the image signal.
【０００８】ここで、チャンネルの変更により、画像信
号受像手段内の局部発信回路の発振周波数が切り替わる
と、スイッチ手段は再び接続されて、受像可能となる。Here, when the oscillation frequency of the local oscillation circuit in the image signal receiving means is switched by changing the channel, the switch means is connected again and the image can be received.
【０００９】このように、本発明の画像信号受像制限装
置は入力された画像信号をスイッチにより、遮断して受
信を困難にする装置であるから、受信装置および設置場
所を選ばずに、使用可能である。As described above, the image signal reception restricting device of the present invention is a device that makes it difficult to receive an image signal by cutting off the input image signal by the switch, so that it can be used irrespective of the receiving device and the installation place. It is.
【００１０】図１を用いて、本発明の実施例を説明す
る。図１は、本発明の画像信号受像制限装置をテレビジ
ョンに適用した場合のブロック図である。２０はアンテ
ナ、２１は緩衝アンプ、２２は制御回路、２３は番組指
定用のリモ−トコントロ−ル装置、２４は受信部、２５
はインタ−フェ−ス、２６はスイッチ、２７は確認用表
示部、２８は画像信号入力端子、２９は画像信号出力端
子、３０はテレビ信号受像装置、４０は漏洩電波受信ア
ンテナ、４１は漏洩電波受信部である。An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram when the image signal reception limiting device of the present invention is applied to a television. 20 is an antenna, 21 is a buffer amplifier, 22 is a control circuit, 23 is a remote control device for program designation, 24 is a receiving unit, 25
Is an interface, 26 is a switch, 27 is a display unit for confirmation, 28 is an image signal input terminal, 29 is an image signal output terminal, 30 is a television signal receiver, 40 is a leaked radio wave reception antenna, 41 is a leaked radio wave. It is a receiving unit.
【００１１】次に動作を説明する。リモ−トコントロ−
ル装置２３により、妨害を希望するチャンネルと時間を
設定する。設定内容は確認用表示部２７に表示し、確認
する。Next, the operation will be described. Remote control
The channel and time for which interference is desired are set by the control device 23. The setting contents are displayed on the confirmation display unit 27 and confirmed.
【００１２】設定された時間に画像信号が受信される
と、チャンネル選択回路（図示せず）内の局部発振回路
より漏洩する電波が、漏洩電波受信アンテナ４０と漏洩
電波受信部４１で受信され、インタ−フェ−ス２５を介
して制御回路２２に伝達される。制御回路２２は、この
チャンネルと先にリモ−トコントロ−ル装置２３により
設定されたチャンネルが比較される。これらのチャンネ
ルが一致すれば、スイッチ２６に遮断信号を送り、番組
の受像が中止される。When an image signal is received at a set time, a radio wave leaking from a local oscillation circuit in a channel selection circuit (not shown) is received by a leaked radio wave receiving antenna 40 and a leaked radio wave receiving unit 41, It is transmitted to the control circuit 22 via the interface 25. The control circuit 22 compares this channel with the channel previously set by the remote control device 23. If these channels match, a cutoff signal is sent to the switch 26, and the reception of the program is stopped.
【００１３】ここで、受信されるチャンネルが使用者に
より変更されると、漏洩電波受信部４１により検出され
て制御回路２２によってスイッチ２６の遮断が解除さ
れ、画像を再び見る事ができる。Here, when the channel to be received is changed by the user, it is detected by the leaked radio wave receiving unit 41, the cutoff of the switch 26 is released by the control circuit 22, and the image can be viewed again.
【００１４】スイッチ２６は、応答性の速さを考慮し
て、リ−ドスイッチやダイオ−ドスイッチが望ましい。
以上、本発明をテレビジョンに適用した例について説明
したが、本発明は画像信号を受像するものであれば、ビ
デオなど他の受像装置に応用可能である。The switch 26 is preferably a lead switch or a diode switch in consideration of the speed of response.
As described above, the example in which the present invention is applied to a television has been described. However, the present invention can be applied to other image receiving apparatuses such as a video as long as it receives an image signal.
【００１５】[0015]
【発明の効果】以上説明したように、本発明の画像信号
受像制限装置は、テレビ受像装置とは別体になってお
り、受像制限をする機能を有さない通常のテレビ受像装
置に後から接続して受像制限機能を容易に付加すること
ができる。また、内部に漏洩電波受信手段を備え、別体
のテレビ受像装置で現在受信中のチャンネルを検出する
ことが自動的に行われるので、ユーザーは、受像制限装
置が接続されていることを意識することなく、テレビ受
像装置を普通に操作して番組の視聴を楽しむことができ
る。As described above, the image signal reception limiting device of the present invention is separate from the television reception device, and is later provided to a normal television reception device having no function of limiting image reception. By connecting, an image receiving restriction function can be easily added. In addition, since a leaked radio wave receiving means is provided inside and the channel currently being received is automatically detected by a separate television receiver, the user is conscious of the fact that the receiver is connected. Without having to operate the television receiver normally, the user can enjoy watching the program.
【図１】本発明の受像制限装置の一実施例のブロック図
である。FIG. 1 is a block diagram of an embodiment of an image reception restriction device according to the present invention.
【図２】従来の受像制限装置の原理を示す図である。FIG. 2 is a diagram showing the principle of a conventional image receiving restriction device.
２０ アンテナ ２１ 緩衝アンプ ２２ 制御回路 ２３ リモ−トコントロ−ル装置 ２４ 受信部 ２５ インタ−フェ−ス ２６ スイッチ ２７ 確認用表示部 ２８ 画像信号出力端子 ２９ 画像信号入力端子 ３０ テレビ信号受像装置 ３１ マイクロプロセッサ ３２ ＰＬＬ選択回路 ３３ 選局キ− ３４ アンテナ ３５ 緩衝アンプ ３６ 信号ミキサ−部 ３７ テレビ信号受像手段 ４０ 漏洩電波受信アンテナ ４１ 漏洩電波受信部 Reference Signs List 20 antenna 21 buffer amplifier 22 control circuit 23 remote control device 24 reception unit 25 interface 26 switch 27 confirmation display unit 28 image signal output terminal 29 image signal input terminal 30 television signal reception device 31 microprocessor 32 PLL selection circuit 33 Tuning key 34 Antenna 35 Buffer amplifier 36 Signal mixer unit 37 TV signal receiving means 40 Leaked radio wave receiving antenna 41 Leaked radio wave receiving unit
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H04N 5/38 - 5/46 H04N 7/14 - 7/173 H04N 5/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H04N 5/38-5/46 H04N 7/ 14-7/173 H04N 5/00
Claims (1)
つアンテナと該テレビ受像装置との間に接続することに
より画像信号を制限して出力する画像信号受像制限装置
であって、リモートコントロール装置からの番組指定用
信号を受信する受信手段と、前記テレビ受像装置の局部
発振回路からの漏洩電波を受信する漏洩電波受信手段
と、前記受信手段で受信した番組指定用信号のチャンネ
ル情報と前記漏洩電波受信手段で受信したチャンネル情
報との比較をする制御手段と、該制御手段による比較の
結果制御手段から発せられる信号により画像信号をオン
オフするスイッチ手段とを内蔵することを特徴とする画
像信号受像制限装置。(1) The television receiver is separate from the television receiver.
Connection between the antenna and the television receiver
Image signal receiving restriction device that outputs to limit the more image signals
And receiving means for receiving a program designating signal from a remote control device, and a local portion of the television receiver.
A leaked radio wave receiving means for receiving a leaked radio wave from an oscillation circuit; and a channel for a program designation signal received by the receiving means.
Information and the channel information received by the leaked radio wave receiving means.
Control means for comparing the information with the
The signal generated from the results the control unit image signal receiving restriction device, characterized in that a built-in switch means for turning on and off an image signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4116995A JP3053692B2 (en) | 1992-04-08 | 1992-04-08 | Image signal reception limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4116995A JP3053692B2 (en) | 1992-04-08 | 1992-04-08 | Image signal reception limiting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05292415A JPH05292415A (en) | 1993-11-05 |
| JP3053692B2 true JP3053692B2 (en) | 2000-06-19 |
Family
ID=14700872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4116995A Expired - Lifetime JP3053692B2 (en) | 1992-04-08 | 1992-04-08 | Image signal reception limiting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3053692B2 (en) |
-
1992
- 1992-04-08 JP JP4116995A patent/JP3053692B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05292415A (en) | 1993-11-05 |
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