【発明の詳細な説明】（ａ） 発明の技術分野本発明は、テレビジョン放送システム（無線のみならず
有線によるシステムを含む）において、特定の復号回路
をもつ受信機のみが放送映像を再生できる秘匿式テレビ
ジ冒ン放送システムの基本構成に関する。Detailed Description of the Invention (a) Technical Field of the Invention The present invention is directed to a television broadcasting system (including not only wireless but also wired systems) in which only a receiver equipped with a specific decoding circuit can reproduce broadcast video. Concerning the basic configuration of a secret television broadcasting system.
（ｂ） 技術の背景テレビジラン放送は、公共放送や商業広告放送の性格上
、これまで不特定の一般視聴者に対するサービスでちっ
たが、最近社会の：ＩＩＡ展につれてニーズも多様化し
、また技術的にも有線、無線の伝送メディアが豊富にな
ったので、特定の放送内容を特定の視聴者に対して、場
合により特別有料などの条件をつけてサービスすること
が期待されて来た。然しなから上記特殊放送サービスも
従来の放送サービスとの両立性がめられるので、技術的
にも従来の放送システムと出来るだけ共用できるシステ
ムでめられている。(b) Technical background Due to the nature of public broadcasting and commercial advertising broadcasting, televised broadcasting has until now been a service for an unspecified general audience, but recently, as society's IIA exhibitions have progressed, needs have diversified, and technological As wired and wireless transmission media have become more abundant, there has been an expectation that specific broadcast content will be provided to specific viewers with conditions such as special charges in some cases. However, since the above-mentioned special broadcasting service must be compatible with conventional broadcasting services, a system that can technically be used in common with conventional broadcasting systems as much as possible is being sought.
（ｅ） 従来技術と問題点テレビシロン映像信号の秘匿化の方法として従来考案さ
れている方法は大別して（１）妨害無線電波を重畳する
方法（２）映像信号（両目信号と同期信号とから成る）
そのものに変形を加える方法があるが、何れもテレビジ
、ン放送の標準形式に反するため既設の放送設備が使用
できず、また受信側でも空中線出力の無線周波数帯で妨
害電波を除去するとか、同期信号を含めた映像信号ｔ−
細工して復元しない限り画像再生が出来ないなど送信側
でも７７Ｓ＋＋受信側でも標準放送との共用で困難という問題である。(e) Prior art and problems The methods that have been devised in the past for concealing TVSILON video signals can be roughly divided into (1) methods of superimposing interfering radio waves, and (2) methods of video signals (from binocular signals and synchronization signals). Become)
There are ways to modify the system itself, but these methods violate the standard format of television broadcasting, so existing broadcasting equipment cannot be used, and on the receiving side, it is necessary to eliminate interference waves in the radio frequency band of the antenna output, or to synchronize. Video signal t- including the signal
This is a problem that is difficult for both the transmitting side and the 77S++ receiving side because it is shared with standard broadcasting, such as the image cannot be played back unless it is modified and restored.
また一旦秘匿性除去后の受信信号はケーブルによる分配
、録画の複製などの不正使用で容易なため秘匿性の点か
らも問題である。Furthermore, once the confidentiality has been removed, the received signal can be easily used illegally, such as by distribution through a cable or by duplicating a recording, which is also a problem in terms of confidentiality.
（ｄ） 発明の目的本発明は、現行テレビジ冒ン放送の送信設備。(d) Purpose of the inventionThe present invention is a transmission equipment for television broadcasting that is beyond the scope of current television broadcasting.
受信設備、ホームＶＴＲなどの使用を前提とし、テレビ
ジ叢ン放送の標準形式にも抵触することなく極めて秘匿
性の高い秘匿式テレビジョン放送システムの基本構成を
提供することにある０（ｅ） 発明の構成本発明では、ビデオ信号源（カメラ、ＶＴＲその他）の
出力を何らかの方法で秘匿化したのち、標準同期信号、
カラーバースト信号等を付与して、形式上、テレビジョ
ン標準形式を満す映像信号とし、これに秘匿プログラム
であることを示す識別符号を重畳して送出する。受信側
では標準受像機の検波器以降のビデオ信号出力より同期
信号を分離し、送信側の秘匿化と逆の処理、グログラム
識別符号の消去全行ったのち、同Ｊ１．ＪＪ信号を再度
付加して標準ディスプレイで元のビデオ信号源の映像を
再生するＩ！？成とする。0(e) Invention The object of the invention is to provide the basic structure of a secret television broadcasting system with extremely high secrecy, assuming the use of receiving equipment, home VTRs, etc., and without violating the standard format of television broadcasting. Structure In the present invention, after the output of the video signal source (camera, VTR, etc.) is concealed by some method, the standard synchronization signal,
A color burst signal or the like is added to create a video signal that conforms to the television standard format, and an identification code indicating that it is a secret program is superimposed on this video signal and then transmitted. On the receiving side, the synchronizing signal is separated from the video signal output after the detector of the standard receiver, and after performing the reverse process of concealment on the transmitting side and erasing the programmable identification code, the same J1. I! re-adds the JJ signal and reproduces the original video signal source on a standard display. ? shall be established.
＜ｆ） 発１月の実施例本発明による実施例構成全図（（よって説明する。<f) Implementation example for JanuaryA complete diagram of the configuration of an embodiment according to the present invention ((Thus, it will be explained).
第１図は従来例、第２図は本発明による秘匿化テレビジ
ョン信号の構成例を示す。FIG. 1 shows a conventional example, and FIG. 2 shows an example of the configuration of a concealed television signal according to the present invention.
図に於いてｌＯ系列が送信側、２ｏ系列が受信側である
０１０は秘匿器、１１はビデオ１１号源（カメラ、ＶＴ
Ｒその他）、１２は同期信号付与回路、１３は外部同期
信号回路、１４は送信機（変調器。In the figure, the 1O series is the transmitting side, the 2o series is the receiving side, 010 is the concealment device, 11 is the video 11 source (camera, VT
12 is a synchronization signal providing circuit, 13 is an external synchronization signal circuit, and 14 is a transmitter (modulator).
電力増幅器その他）である０２０は秘匿化ビデオ信号の
復号器、２１は標準テレビジ！ン受像窯チ鳳−す、検波
器、ディスプレイ）２２は録画のホームＶＴＲである。020 is a decoder for the concealed video signal, and 21 is the standard TV signal! 22 is a home VTR for recording.
本発明による構成例全示す第２図において、先づ送信側
では、カメラやＶＴＲその他のビデオ信号源１１の出力
信号は秘匿器１ｏにより何らかの秘匿のための処理を受
け、かつ秘匿化プログラムであることを示す識別その他
運用に必要な符号が例えば垂直ブランキング期間；２ど
にＭｕして付加される。秘匿器１０の出力（ｉ号は同５
ｖｊ信号付与回路１２において標準テレビジョン信号Ｂ
４ｇ形式として必要な水平同期信号、垂直同期信号、
カラーバースト信号が付与される。同期（ｉｆ−号Ｕ与
回路１２の出力信号は送信機１４において標準の変調を
受け電力増幅されて送出される。送出さｈる信号はテレ
ビジョン放送の標準形式の映像信号であるため放送局側
ではすべてのスタジオ設備、無腺送伯設備が正常に（べ
記する。In FIG. 2, which shows the entire configuration example according to the present invention, first, on the transmitting side, the output signal of a video signal source 11 such as a camera or VTR is subjected to some kind of concealment processing by a concealer 1o, and is also subjected to a concealment program. Identification and other codes necessary for operation are added to, for example, the vertical blanking period; The output of the secret device 10 (No.
standard television signal B in the vj signal providing circuit 12;
Horizontal synchronization signal, vertical synchronization signal required for 4G format,
A color burst signal is applied. The output signal of the synchronization (if-signal U) circuit 12 is modulated in a standard manner by the transmitter 14, power amplified, and sent out.The signal to be sent out is a video signal in the standard format for television broadcasting, so the broadcasting station On the side, all studio equipment and non-denial transport equipment are in good working order.
従来の構成（第１１要）では秘匿器１０による信号処理
が、ビデオ信号源１１に同期信号がｆ寸与されたのち行
われるので送出信号１ｔ−Ｘ、標バへ形式ｊ満足しない
。受信側では第２図の如く送（＋側より送出された信号
を直接または一旦家庭用ＶＴＩＬ収録したのち標準テレ
ビジ房ン受像機２１で受信Ｊ−る〇信号は標準形式に合
致するので家社用ＶＴＲ及び受ｆ９！俵２１の高周波回
路、検波回路はそのま＼（秘匿化された丈ま）正常に４
ｊｋ能踵第１０に示すような従来格成の時のよりに、花
代解除のために、篩用イ皮［ｑ路、征副回路、再変調回
路を別に必要とせず、１３２図に示す復号器２ｏのよう
にビ１オ周？ｌｌ数イ６の信号処理のみで構成出来る。In the conventional configuration (eleventh point), the signal processing by the concealer 10 is performed after the synchronizing signal is given to the video signal source 11, so that the transmission signal 1t-X does not satisfy the format j. On the receiving side, as shown in Figure 2, the signal sent from the + side is sent directly or once recorded in home VTIL and then received by the standard television receiver 21.The signal conforms to the standard format, so it is The high-frequency circuit and detection circuit of the VTR and receiving f9! 21 are normally intact (with the concealed length) 4
In contrast to the case of the conventional case as shown in No. 10 of the JK function, in order to release the flower charge, the sieving ipi [q path, sub-circuit, and remodulation circuit are not required separately, as shown in Fig. 132. Bi1o cycle like decoder 2o? It can be configured with only 6 signal processing steps.
第２図の復ｇ器２０で１ＩＪ１、同期信号の分離、送信
側のビデオ信号秘Ｗ化と逆の処理、秘匿グログラム識別
符号の１１″ｊ去、同期１５月の再付−りが行われ、そ
の出カイ４号μ標（ｌ／′・テレビジョン信号のビデオ
出力と１〜て標準受ｆセ４少２１のディスプレイで元の
ビデＡ信号源１１の映像が再生される。秘匿器］０およ
びイ（号器２０のド１路はう積回路化（ＩＣ化）に損し
、複雑ｆ！、７郊匿も可ＩＩシとなる。また家旌用ＶＴ
Ｒで収録したテープも復号器２０の保有者以外には使用
できないため不正使甲が１３：ｌ４ｉ６となＶ秘匿性が
商いという特徴を有する〇（ｇ） 発明の効果実施例で［６述したごとく、本８１明により秘匿式テレ
ビジ−ｌ／放送システムを構成すれば、現行の放送設Ｖ
！と受信機設備に大きな変更を加ズーることなく秘匿性
の大きい放送システムが経済的に実施できるので効果は
大きい。The converter 20 in Fig. 2 performs 1IJ1 separation of the synchronization signal, processing reverse to video signal secrecy on the transmitting side, removal of the cipher program identification code 11''j, and reattaching the synchronous 15 month. , the video output of the original video A signal source 11 is played back on the display of the standard receiver 4-21. 0 and A (D1 of No. 20 is a loss in converting to a multiplication circuit (IC), and complex f!, 7 circuits are also possible. Also, VT for home use
Since the tape recorded in R cannot be used by anyone other than the owner of the decoder 20, the unauthorized use is 13:14i6, and V confidentiality is important. If a secret TV/broadcasting system is configured according to this 81, the current broadcasting equipment
! This is highly effective because a highly confidential broadcasting system can be implemented economically without making any major changes to the receiver equipment.
耐１図ぐよ、従来の構成し６、第２図は木兄ＩＪＩＩに
よる構成例ケ示すブロック図である。図において、１０系列１．１送ＩＪ系、２０系列は受｛
ｉＮ系を示ず。１０は１，３匿器、１ｌはビデメ信号源
、２０は復号器、２１は８′乞準デレビジヨン’ＸＵＩ
４Ｒである。１７−］代理人 弁理士 わ、岡 宏四郎：Figure 2 is a block diagram showing an example of the configuration according to Kinoe IJII. In the figure, 10 series 1.1 sending IJ system, 20 series receiving {
iN system not shown. 10 is the 1st and 3rd receiver, 1l is the video signal source, 20 is the decoder, and 21 is the 8' quasi-devision unit'XUI.
It is 4R. 17-] Agent Patent Attorney Koshiro Oka:
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58127320AJPS6019380A (en) | 1983-07-13 | 1983-07-13 | How to construct a concealed television signal |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58127320AJPS6019380A (en) | 1983-07-13 | 1983-07-13 | How to construct a concealed television signal |
| Publication Number | Publication Date |
|---|---|
| JPS6019380Atrue JPS6019380A (en) | 1985-01-31 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58127320APendingJPS6019380A (en) | 1983-07-13 | 1983-07-13 | How to construct a concealed television signal |
| Country | Link |
|---|---|
| JP (1) | JPS6019380A (en) |
| Publication | Publication Date | Title |
|---|---|---|
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