JP3768760B2 - Program transmission method, receiver, and program recording medium - Google Patents

Description

上記編集には、時間軸方向編集すなわちビデオフレームの順序を入れ替えたり、一部を削除したり、複数のビデオをつなぎあわせたりするものや、１フレーム面内編集すなわち、１フレーム面内において一部の映像を入れ替えたり、切り取ったりするものや、静止画を取り出すものを含んでいる。
【００４５】
ここでは、以下のように番組と加工制御情報が送られるものとする。
【００４６】
【表２】

受信装置３２では、番組仕様情報蓄積手段１１から加工制御情報抽出手段２１が加工制御情報を抽出し加工制御手段２２に供給し、加工制御手段２２は、加工手段２３の加工内容を制御する。表２の場合では、ニュースでは、加工制御情報は０００１×××０であるため、編集例えば時間軸方向の順序の入れ替えが可能であり、属性変更例えば映像を切り出してグラフィックアイコン化することが可能であるが再配信は許可されない。ドラマにおいては、加工制御情報が００１１×××０であるため、編集例えば時間軸方向の順序の入れ替えが可能であるが、属性変更例えば映像を切り出してグラフィックアイコン化することや再配信は許可されない。映画では、加工制御情報は１××１×××０であるため、編集、属性変更、再配信いずれも許可されない。有料番組では、加工、再配信、表示が禁止となっている。視聴者創作ビデオでは、加工制御情報は００００×××０であるため、編集、属性変更、再配信いずれも許可される。
【００４７】
加工制御手段２２は、上記加工制御情報に基づいて加工手段２３に対して加工方法例えば、編集等を指示する。
【００４８】
尚、本発明の第１の実施の形態においては、加工制御情報を番組仕様情報に含ませているがこれに限ることはない。
【００４９】
また、表１に示す加工制御情報は８ビットとしているが、８ビットに限ることはない。
【００５０】
また、加工の例として、編集、属性変更、再配信をとりあげているが、これらに限ることはない。
【００５１】
以上のように、本発明の第１の実施の形態によれば、送信装置３１が放送する番組おのおのに対して付加する加工制御情報によって番組が受信装置３２に勝手に加工されることを防ぐことができるという利点があり、一方、受信装置３２においては、送信装置３１が許諾する範囲で自由に番組を加工することができるので、放送の利用機会が増加するという利点がある。
【００５２】
なお、本実施の形態の受信装置３２は本発明の受信装置の例であり、本実施の形態の加工制御手段２２と加工手段２３は本発明の加工手段の例である。また、本実施の形態の加工制御情報は本発明の加工制御情報の例であり、本実施の形態の加工制御情報は本発明の加工後処理情報、加工履歴情報も兼ねている。すなわち、本実施の形態の編集禁止及び編集許可は本発明の編集制御情報の例であり、本実施の形態の加工禁止及び加工許可は本発明の加工制御情報の例であり、本実施の形態の属性変更禁止及び属性変更許可は本発明の属性変更情報の例であり、本実施の形態の再配禁止及び再配信許可は本発明の加工後処理情報の例であり、本実施の形態の表示禁止及び表示許可は本発明の加工後処理情報の例である。
【００５３】
（第２の実施の形態）
図２は、本発明の第２の実施の形態による番組伝送方法及び受信装置を示すブロック図であり、世代管理情報を伝送する場合である。図２にて、１〜８、１１は図９に示す従来の構成と同一であり、２０〜２３、３１、３２は図１に示す本発明の第１の実施の形態と同一であり、４２は世代管理情報作成手段、４３は配信手段、４４は世代管理情報変更手段、４５は属性情報変更手段、４６は加工制御情報変更手段、４７はネットワーク例えばインタネットである。
【００５４】
以下、図２を用いて説明する。送信装置３１において、世代管理情報作成手段４２は、例えば表３に示す世代管理情報（加工制御情報のビット３）を作成して加工制御情報作成手段２０に供給する。表３の世代管理情報（ビット３）において、０は第１次著作権者、１は第２次著作権者を表すものとする。また、属性情報は加工制御情報のビット２とし、属性０は映像、属性１がグラフィック情報とする。
【００５５】
【表３】

受信装置32においては、加工手段２３で映像を時間軸方向に編集するすなわちビデオの一部を抜き取るものとし、更に、映像からアイコンを作成する。加工制御情報抽出手段２１で抽出された加工情報のうちで世代管理情報は０となっている。ここで、受信装置３２の世代管理情報変更手段４４は、視聴者創作ビデオを加工することによって世代管理情報を１に書き換える。これによって第２次加工者であることが示される。また、更に、ビデオからグラフィックアイコンを作成するので、属性情報変更手段４５は属性変更したことを加工制御情報変更手段４６に通知する。受信側３２で書き換え後の加工制御情報を表４に示す。
【００５６】
【表４】

加工制御情報変更手段４６は、加工制御情報を表４の通り変更し、配信手段４３は加工後の番組と変更後の加工制御情報とをインターネット４７によって配信する。その他の動作は図１に示す本発明の第１の実施の形態と同様である。
尚、本発明の実施の形態２においては、加工制御情報を番組仕様情報に含ませているがこれに限ることはない。
【００５７】
以上のように、本発明の第２の実施の形態によれば、送信側３１が放送する番組おのおのに対して付加する番組仕様情報によって番組が受信側３に勝手に加工されることを防ぐことができるのみでなく、著作権者の世代を示すことができるとともに、属性が変更されたことも示すことができ著作権者の世代、属性変更を管理することができるという利点がある。
【００５８】
なお、本実施の形態の受信装置３２は本発明の受信装置の例であり、本実施の形態の加工制御手段２２、加工手段２３、加工制御情報変更手段４６、属性情報変更手段４５、世代管理情報変更手段４４は本発明の加工手段の例である。また、本実施の形態の加工制御情報は本発明の加工制御情報の例であり、本実施の形態の加工制御情報は本発明の加工後処理情報、加工履歴情報も兼ねている。すなわち、本実施の形態の編集禁止及び編集許可は本発明の編集制御情報の例であり、本実施の形態の加工禁止及び加工許可は本発明の加工制御情報の例であり、本実施の形態の属性変更禁止及び属性変更許可は本発明の属性変更情報の例であり、本実施の形態の再配信禁止及び再配信許可は本発明の加工後処理情報の例であり、本実施の形態の表示禁止及び表示許可は本発明の加工後処理情報の例であり、本実施の形態の属性情報は本発明の属性を変更したかどうかを示す情報の例であり、本実施の形態の世代管理情報と属性情報は本発明の加工履歴情報の例である。
【００５９】
（第３の実施の形態）
図３は、本発明の第３の実施の形態による番組伝送方法及び受信装置を示すブロック図であり、番組を加工して記録を行う場合である。図３にて、１〜１１は図９に示す従来の構成と同一であり、２０〜２３、３１、３２は図１に示す本発明の第１の実施の形態と同一であり、４６は図２に示す本発明の第２の実施の形態と同一であり、５１は記録手段である。
【００６０】
以下、図３を用いて説明する。受信側３２において、加工手段２３によって加工された番組は記録手段５１に記録される。一方、加工制御情報抽出手段２１によって抽出された番組の加工制御情報を表５に示す。表５において、記録可否を加工制御情報のビット１によって示し、０は記録可、１は記録不可を示す。
【００６１】
【表５】

受信装置32においては、加工制御情報のビット０が０となっているので、記録手段５１によって記録する。その他の動作は図１に示す本発明の第１の実施の形態と同様である。
【００６２】
尚、本発明の実施の形態３においては、加工制御情報を番組仕様情報に含ませているがこれに限ることはない。
【００６３】
以上のように、本発明の第３の実施の形態によれば、送信装置３１が放送する番組おのおのに対して付加する加工制御情報において、記録可能となっている場合には、加工した番組を受信側３２の記録手段に記録することができるという利点がある。
【００６４】
なお、本実施の形態の受信装置３２は本発明の受信装置の例であり、本実施の形態の加工制御手段２２、加工手段２３、加工制御情報変更手段４６は本発明の加工手段の例である。また、本実施の形態の加工制御情報は本発明の加工制御情報の例であり、本実施の形態の加工制御情報は本発明の加工後処理情報、加工履歴情報も兼ねている。また、、本実施の形態の記録不可及び記録可は本発明の加工後処理情報の例である。
【００６５】
（第４の実施の形態）
図４は、本発明の第４の実施の形態による番組伝送方法及び受信装置を示すブロック図であり、加工制御情報を透かし情報として伝送する場合で、加工制御情報が番組仕様情報でなく圧縮ビデオ情報に透かし情報として埋め込まれる点が図１に示す本発明の実施の形態１とは異なる。図４にて、１、３〜５、７〜８、１０、１１は図９に示す従来の構成と同一であり、２２、２３、３１〜３２は図１に示す本発明の第１の実施の形態と同一であり、５５は透かし情報作成手段、５６は第２の圧縮手段、５７は第２の復号手段、５８は第１の加工制御情報分離手段である。
【００６６】
図５は第２の圧縮手段５６の１例を示す図であり、６０は番組データ１から入力される番組情報、６１は透かし情報作成手段５５から入力される透かし情報、６２は透かし情報埋め込みＤＣＴ手段、６３は量子化手段、６４は逆量子化手段、６５は透かし情報除去逆ＤＣＴ（Ｄｉｓｃｒｅｔｅ Ｃｏｓｉｎ Ｔｒａｓｎｆｏｒｍ）手段、６６は第１の動き補償手段、６７はＶＬＣ（Ｖａｒｉａｂｌｅｌｅｎｇｔｈ Ｃｏｄｉｎｇ）手段、６８は合成手段、６９は符号化制御手段である。
【００６７】
図６は第２の復号手段５７の１例を示す図であり、７０は多重化情報分離手段８から出力される分離された圧縮ビデオ情報、７１はＶＬＤ（ＶａｒｉａｂｌｅＬｅｎｇｔｈ Ｄｅｃｏｄｉｎｇ）手段、７２は逆量子化手段、７３は透かし情報分離逆ＤＣＴ手段、７４は透かし情報を含むデータ、７５は第２の動き補償手段、７６は復号ビデオ情報である。
【００６８】
以下、図４〜図６を用いて説明する。送信装置３１では、加工制御情報作成手段２０によって加工制御情報が作成され、透かし情報作成手段５５に供給される。透かし情報作成手段５５で作成された透かし情報６１は第２の圧縮手段５６の透かし情報埋め込みＤＣＴ手段６２に供給される。透かし情報埋め込みＤＣＴ手段６２では、透かし情報作成手段５５によって作成された透かし情報６１に従って、ＤＣＴ係数が変更される。すなわち、８×８画素のＤＣＴ変換された結果をＲ（ｕ，ｖ）（ｕ，ｖ＝０〜７の正整数）とすると、例えば、加工制御情報として、（ｕ，ｖ）＝（７，７）の１ビットを用いるとする。画像サイズを７２０×４８０、３０フレーム／秒とすると、１秒あたり１６２，０００ビット（９０×６０×３０ビット）の情報量を確保することができるので、表１に示すような加工制御情報を埋め込むことは十分可能である。
【００６９】
透かし情報埋め込みＤＣＴ手段６２によって透かし情報を埋め込まれたＤＣＴ係数は量子化手段６３で量子化され、ＶＬＣ手段６７に供給されるとともに、逆量子化手段６４を経て、透かし情報除去逆ＤＣＴ手段６５によって（ｕ，ｖ）＝（７，７）をもとの値に戻して第１の動き補償手段６６へ加えられる。ＶＬＣ手段６７の出力は、合成手段６８に加えられる。合成手段６８の出力は符号化制御手段６９を経て量子化手段６３に戻される。第２の圧縮手段５６の出力は多重化手段４で番組仕様情報と多重化され送信手段５から送信される。
【００７０】
受信側３２では、受信手段７で受信された信号は多重化分離手段８で番組仕様情報と番組データとしての圧縮ビデオ情報が分離され、圧縮ビデオ情報７０は第２の復号手段５７に加えられ、ＶＬＤ手段７１で可変長復号され、逆量子化手段７２で逆量子化され、透かし情報分離逆ＤＣＴ手段７３で逆ＤＣＴ変換が行われるとともに、上記Ｒ（ｕ，ｖ）のうちの加工制御情報として、（ｕ，ｖ）＝（７，７）の１ビットを分離して透かし情報７４として出力する。透かし情報分離逆ＤＣＴ手段７３の出力は第２の動き補償手段７５を経て復号ビデオ情報７６として出力され、加工手段２３に加えられる。
【００７１】
一方、透かし情報７４は第１の加工制御情報分離手段５８へ加えられ、加工制御情報が分離され加工手段２３へ加えられ、番組データが加工制御情報に従って加工される。その場合、例えば表１に示す有料番組では表示も禁止となっているので加工のみならず表示も行われない。その他の動作は図１に示す本発明の第１の実施の形態と同様である。
【００７２】
尚、透かし情報埋め込みＤＣＴ手段６２における透かし情報の埋め込み方法は本実施の形態に示すような（ｕ，ｖ）＝（７，７）を変更する方法に限らない。
【００７３】
また、第２の圧縮手段５６への透かし情報の埋め込み方法は本実施の形態に示すようなＤＣＴ係数によるものに限らず、量子化への埋め込みによるものや動き補償への埋め込みによる方法でもよい。
【００７４】
以上のように、本発明の第４の実施の形態では、加工制御情報を透かし情報として圧縮ビデオ情報の中に埋め込むことができるので安全性が増すという利点を有している。
【００７５】
なお、本実施の形態の受信装置３２は本発明の受信装置の例であり、本実施の形態の加工制御手段２２、加工手段２３、は本発明の加工手段の例であり、本実施の形態の第２の復号手段５７、第１の加工制御情報分離手段５８は本発明の加工制御情報抽出手段の例である。
【００７６】
（第５の実施の形態）
図７は、本発明の第５の実施の形態による番組伝送方法及び受信装置を示すブロック図であり、加工制御情報を透かし情報として非圧縮のビデオ情報に埋め込み伝送する場合で、加工制御情報が番組仕様情報でなく非圧縮ビデオ情報に透かし情報として埋め込まれる点が図１に示す本発明の実施の形態と異なる。図７にて、１〜２、４〜５、７〜１０は図９に示す従来の構成と同一であり、２０、２２、２３、３１〜３２は図１に示す本発明の第１の実施の形態と同一であり、５５は図４に示す本発明の第４の実施の形態と同一であり、８１は透かし情報埋め込み手段、８２は第２の加工制御情報抽出手段である。
【００７７】
以下、図７を用いて説明する。送信側３１では、加工制御情報作成手段２０によって加工制御情報が作成され、透かし情報作成手段５５に供給される。透かし情報作成手段５５で作成された透かし情報６１は透かし情報埋め込み手段８１によって、番組データ１から供給される非圧縮ビデオ情報に例えば非圧縮ビデオ情報を１画素当たり８ビットとするとそのうちの最下位ビットに埋め込まれる。また、受信側では、第１の復号手段９の出力信号から第２の加工制御情報抽出手段８２によって加工制御情報が抽出され加工手段２３に加えられる。その他の動作は、本発明の実施の形態１と同一である。
【００７８】
尚、加工情報のビット０は表示可否を示すものであるが、表示不可となっている場合には、加工手段２３で表示を停止することができる。
【００７９】
また、透かし情報を埋め込む方法は、本実施の形態のようにビデオ情報の最下位ビットに埋め込む方法に限らないのは言うまでもない。
【００８０】
以上のように、本発明の第５の実施の形態では、加工制御情報を透かし情報として非圧縮ビデオ情報の中に埋め込むことができるので復号後のビデオ信号に対する安全性も維持することができるという利点を有している。
【００８１】
なお、本実施の形態の受信装置３２は本発明の受信装置の例であり、本実施の形態の加工制御手段２２、加工手段２３、は本発明の加工手段の例であり、本実施の形態の第２の加工制御情報抽出手段８２、第１の加工制御情報抽出手段８２は本発明の加工制御情報抽出手段の例である。
【００８２】
（第６の実施の形態）
図８は、本発明の第６実施の形態による番組情報伝送方法を示すブロック図であり、受信側からの要求に応じて有料で加工制御情報を送信側が受信側に提供する点が図１に示す本発明の実施の形態と異なる。図８にて、１〜５、７〜１１は図９に示す従来の構成と同一であり、２２〜２３、３１〜３２は図１に示す本発明の第１の実施の形態と同一であり、８９は暗号化加工制御情報作成手段、９０は鍵作成手段、９１は通信手段、９２は通信制御手段、９３は鍵抽出手段、９４は暗号化加工制御情報抽出手段、９５はインターネットである。
【００８３】
以下、図８を用いて説明する。受信側３２では通信制御手段９２から有料による番組加工情報提供の要求をインターネット９０を通じて送ると、送信側３１では通信手段９１が要求を受け取り鍵作成手段９０が暗号化鍵を作成し、暗号化加工情報作成手段８９は暗号化された加工情報を作成して番組仕様情報作成手段３に送り、番組仕様情報と多重化する。受信側では、鍵抽出手段９３が上記暗号化鍵を抽出し、暗号化加工制御情報抽出手段９４に送って暗号化された加工情報を解読して加工制御手段２２に送る。その他の動作は、本発明の実施の形態１と同一である。
【００８４】
なお、本実施の形態の鍵抽出手段９３、暗号化加工制御情報抽出手段９４は本発明の加工制御情報抽出手段の例であり、本実施の形態の加工制御手段２２、加工手段２３は本発明の加工手段の例である。
【００８５】
なお、上記鍵は図４〜６に示す本発明の第４の実施の形態、図７に示す本発明の第５の実施の形態の場合でも同様であり、正しい鍵が送信側から配信されている場合にのみ透かし情報を取り出すことあるいは番組のビデオ情報を取り出すことを可能とすることができるのは言うまでもない。
【００８６】
また、加工情報のビット０は表示可否を示すものであるが、表示不可となっている場合には、加工手段２３で表示を停止することができる。
【００８７】
以上のように、本発明の実施の形態５では、加工制御情報を暗号化して送り、課金によって加工を許諾することができるので安全性を維持することができるとともに加工を有料化して有料番組提供を行うことができるという利点を有している。
【００８８】
また、本発明の第１〜６の実施の形態において、コピー禁止、１回コピー許可、これ以上コピー不可、コピー自由等のコピー制御情報を加工制御情報に含めてもよいことは言うまでもない。なお、この場合、コピー制御情報は、本発明の加工後処理情報に対応する。
【００８９】
また、本発明の番組伝送方法の全部または一部のステップの全部または一部の動作をハードウェアで実現しても構わないし、コンピュータのプログラムによってソフトウェア的に実現しても構わない。
【００９０】
また、本発明の受信装置の全部または一部の手段の全部または一部の機能をハードウェアで実現しても構わないし、コンピュータのプログラムによってソフトウェア的に実現しても構わない。
【００９１】
また、本発明の番組伝送方法の全部または一部のステップの全部または一部の動作をコンピュータにより実行させるためのプログラムおよび／またはデータを記録したプログラム記録媒体であって、コンピュータにより読み取り可能であり、読み取られた前記プログラムおよび／またはデータが前記コンピュータと協動して前記機能を実行することを特徴とするプログラム記録媒体も本発明に属する。
【００９２】
また、本発明の受信装置の全部または一部の手段の全部または一部の機能をコンピュータにより実行させるためのプログラムおよび／またはデータを記録したプログラム記録媒体であって、コンピュータにより読み取り可能であり、読み取られた前記プログラムおよび／またはデータが前記コンピュータと協同して前記機能を実行することを特徴とするプログラム記録媒体も本発明に属する。
【００９３】
【発明の効果】
以上説明したところから明らかなように、本発明は、送信側が放送する番組おのおのに対して番組が受信側に勝手に加工されることを防ぐことができるという利点があり、一方、送信側が許諾する範囲で自由に番組を加工することができるので、放送の利用機会が増加するという利点がある番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【００９４】
また、本発明は、上記効果に加えて、送信側が放送する番組おのおのに対して属性の変更の履歴を保存することができるという利点がある番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【００９５】
また、本発明は、上記効果に加えて、著作権者の世代を示すことができるという利点がある番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【００９６】
また、本発明は、送信側が放送する番組おのおのに対して付加する加工制御情報において、記録可能となっている場合には、加工した番組を受信側で記録することができるという利便性がある番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【００９７】
また、本発明は、加工制御情報を透かし情報として圧縮ビデオ情報の中に埋め込むことができるので安全性が増すという利点を有する番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【００９８】
また、本発明は、加工制御情報を透かし情報として非圧縮ビデオ情報の中に埋め込むことができるので復号後のビデオ信号に対する安全性も維持することができるという利点を有する番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【００９９】
また、本発明は、加工制御情報を暗号化して送るので、安全性を維持することができるという利点を有する番組伝送方法、受信装置及びプログラム記録媒体を提供することが出来る。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態における番組伝送方法及び受信装置の概略構成を示すブロック図である。
【図２】本発明の第２の実施の形態における番組伝送方法及び受信装置の概略構成を示す図である。
【図３】本発明の第３の実施の形態における番組伝送方法及び受信装置の概略構成を示すブロック図である。
【図４】本発明の第４の実施の形態における番組伝送方法及び受信装置の概略構成を示すブロック図である。
【図５】本発明の第４の実施の形態における第２の圧縮手段の概略構成を示すブロック図である。
【図６】本発明の第４の実施の形態における第２の復号手段の概略構成を示すブロック図である。
【図７】本発明の第５の実施の形態における番組伝送方法及び受信装置の概略構成を示すブロック図である。
【図８】本発明の第６の実施の形態における番組伝送方法及び受信装置の概略構成を示すブロック図である。
【図９】従来の構成図である。
【符号の説明】
１ 番組データ
２ 第１の圧縮手段
４ 多重化手段
８ 多重化分離手段
９ 第１の復号手段
１０ 表示手段
２０ 加工制御情報作成手段
２１ 加工制御情報抽出手段
５５ 透かし情報作成手段
５６ 第２の圧縮手段
５７ 第２の復号手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a program transmission method for transmitting a program from a transmitting side to a receiving side, a receiving apparatus for receiving a transmitted program, and a program recording medium.
[0002]
[Prior art]
FIG. 9 shows program distribution in conventional digital broadcasting. In FIG. 9, 1 is program data, 2 is first compression means, 3 is program specification information creation means, 4 is multiplexing means, 5 is transmission means, 6 is broadcast radio waves, 7 is reception means, and 8 is multiplexing. Separation means, 9 is first decoding means, 10 is display means, and 11 is program specification information storage means.
[0003]
Program data 1 is obtained by storing video program contents as digital information. The first compression means 2 compresses the program data 1 by a method such as MPEG-2 video (ISO / IEC13818-2).
[0004]
The program specification information creation means 3 creates program specification information such as the broadcast time, title, and content for each program associated with the program data 1. The multiplexing unit 4 multiplexes the created program specification information and the program data compressed by the first compression unit 2. The multiplexed information is broadcast as broadcast radio waves 6 by the transmission means 5.
[0005]
The receiving means 7 receives the broadcast radio wave 6 broadcast in this way. The multiplexing / separating means 8 separates the program data, and the first decoding means 9 decodes the separated program data. Then, the display means 10 displays the decoded program data.
[0006]
On the other hand, the program specification information is separated by the multiplexing / separating means 8, and the program specification information accumulating means 11 accumulates the separated program specification information.
[0007]
[Problems to be solved by the invention]
However, in the above, no modification or processing of digital program data such as editing digital program data or changing from the attribute of video information to another attribute such as graphic information is taken into consideration. It is difficult to prevent unauthorized processing of programs in receiving digital broadcasts.
[0008]
That is, when the receiving device has a function of modifying or processing the received digital program data, there is a problem that it is difficult to prevent unauthorized processing of the program.
[0009]
In consideration of the above problems, the present invention is a program capable of preventing unauthorized modification of data when the receiving apparatus processes data even when the receiving apparatus has a function of modifying or processing digital program data. It is an object of the present invention to provide a transmission method, a receiving device, and a program recording medium.
[0010]
[Means for Solving the Problems]
  In order to solve the above-mentioned problems,TomorrowIn the program transmission method in which the transmission device transmits a program including digital video information to the reception device,
  Processing control information indicating whether the receiving device can process the program is transmitted from the transmitting device to the receiving device together with the program.And
  The processing control information includes processing history information indicating a processing history of the program.This is a program transmission method characterized by the above.
  According to a second aspect of the present invention, in the program transmission method, the transmitting device transmits a program including digital video information to the receiving device.
  Processing control information indicating whether or not the receiving device can process the program is transmitted from the transmitting device to the receiving device together with the program;
  The program control method is characterized in that the processing control information includes post-processing information indicating processing after processing of the program.
[0011]
  The second3FromAkiraThe processing control information includes editing control information for controlling editing of the program.The first or second aspect of the present inventionThis is a program transmission method.
[0012]
  The second4The present inventionIsThe editing control information includes time axis direction editing information for editing the program in time.Of the third inventionThis is a program transmission method.
[0013]
  The second5The present inventionIsThe editing control information includes editing information within one frame for spatially editing the program.Of the third inventionThis is a program transmission method.
[0014]
  The second6The present inventionIsThe editing control information includes still image extraction information for extracting a still image from the program.Of the third inventionThis is a program transmission method.
[0015]
  The second7The present inventionIsThe processing control information includes the programOf video informationIncludes attribute change information to change attributesOf the first or second inventionThis is a program transmission method.
[0018]
  The second8The present inventionIsThe processing control information is embedded as digital watermark in the program data.Of the first or second inventionThis is a program transmission method.
[0019]
  The second9The present inventionIsEmbedded in the program data as a digital watermark is characterized in that the processing control information is embedded in the data in the process of compressing the data.Of the eighth inventionThis is a program transmission method.
[0020]
  The second10The present inventionIs“Being embedded in the program data as a digital watermark” means that the processing control information is embedded in the data before the data is compressed.Of the eighth inventionThis is a program transmission method.
[0021]
  The second11The present inventionIsThe processing control information is transmitted after being encrypted.Of the first or second inventionThis is a program transmission method.
  The twelfth aspect of the present invention is the program transmission method according to the second aspect of the present invention, wherein the post-processing information includes information that prohibits redistribution of the program or permits redistribution. .
  The thirteenth aspect of the present invention is the program transmission method according to the second aspect of the present invention, wherein the post-processing information includes information that prohibits or permits display of the program.
[0022]
  The second14The present inventionIsFirstOr secondThe program transmitted by the program transmission method of the present invention and the programSaidReceiving means for receiving processing control information;
  Machining control information extracting means for extracting the machining control information;
  A receiving device comprising processing means for processing the program according to the processing control information.
[0023]
  The second15The present inventionIsThe processing control information includes editing control information for controlling editing of the program,
  The processing means edits the program according to the editing control information.14th inventionIt is a receiving device.
[0024]
  The second16The present inventionIsThe edit control information includes time axis direction edit information for temporally editing the program,
  The processing means performs the time-axis direction editing on the program according to the time-axis direction editing information.15th aspect of the present inventionIt is a receiving device.
[0025]
  The second17The present inventionIsThe editing control information includes in-frame editing information for spatially editing the program,
  The processing means performs the in-frame editing for the program according to the in-frame editing information.15th aspect of the present inventionIt is a receiving device.
[0026]
  The second18The present inventionIsThe edit control information includes still image extraction information for extracting a still image from the program,
  The processing means extracts a still image from the program according to the still image extraction information.15th aspect of the present inventionIt is a receiving device.
[0027]
  The second19The present inventionIsThe processing control information includes the programVideo informationIncluding attribute change information to change the attributes of
  The processing means is configured to execute the program according to the attribute change information.Video informationCharacterized by changing the attributes of14th inventionIt is a receiving device.
[0028]
  The second20The present inventionSaidThe machining control information extraction means is the machining history informationExtractbroth,
  The processing means updates the extracted processing history information according to the processing control information.14th inventionIt is a receiving device.
[0029]
  The second21The present inventionIsThe processing history information includes the programOf video informationIncludes information indicating whether the attribute has changed20th inventionIt is a receiving device.
[0030]
  The second22The present inventionIsThe processing history information includes generation management information for managing a generation of a copyright holder of the program.20th inventionIt is a receiving device.
[0031]
  The second23The present inventionBeforeThe processing control information extracting means also extracts the post-processing information,
  The processing means post-processes the processed program according to the post-processing information.14th inventionIt is a receiving device.
[0032]
  The second24The present inventionIsThe post-processing information includes recording permission information indicating whether or not recording of the processed program is permitted.14th inventionIt is a receiving device.
[0033]
  The second25The present inventionIsThe processing control information is embedded as digital watermark in the program data.14th inventionIt is a receiving device.
[0034]
  The second26The present inventionIsEmbedded in the program data as a digital watermark is characterized in that the processing control information is embedded in the data in the process of compressing the data.25th of the present inventionIt is a receiving device.
[0035]
  The second27The present inventionIs“Being embedded in the program data as a digital watermark” means that the processing control information is embedded in the data before the data is compressed.25th of the present inventionIt is a receiving device.
[0036]
  The second28The present inventionIsThe processing control information is transmitted after being encrypted.14th inventionIt is a receiving device.
  In the twenty-ninth aspect of the present invention, the post-processing information includes information that prohibits redistribution of the program after the processing or permits redistribution. It is.
  The thirtieth aspect of the present invention is the receiving apparatus according to the fourteenth aspect of the present invention, wherein the post-processing information includes information that prohibits or allows display of the program after the processing. .
[0037]
  The second31The present inventionIsFirst1'sThe program transmission method of the present inventionA program for causing a computer to execute processing for transmitting processing control information indicating whether the receiving device can process the program together with the program from the transmitting device to the receiving device.A program recording medium on which is recorded,
  A program recording medium characterized by being readable by a computer.
[0038]
  The second32The present inventionIs14th aspect of the receiver of the present inventionReceiving means for receiving the program transmitted by the program transmission method of the first or second aspect of the invention and the processing control information for the program, processing control information extracting means for extracting the processing control information, Program for causing a computer to function as processing means for processing the program according to processing control informationA program recording medium on which is recorded,
  A program recording medium characterized by being readable by a computer.
[0039]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0040]
(First embodiment)
FIG. 1 is a block diagram showing a program transmission method and a receiving apparatus according to the first embodiment of the present invention.
[0041]
In FIG. 1, 1 to 11 are the same as the configuration of the conventional example shown in FIG. 9, 20 is a machining control information creating means, 21 is a machining control information extracting means, 22 is a machining control means, 23 is a machining means, and 31 is a machining means. A transmitting device 32 is a receiving device.
[0042]
The operation of the program information transmission method according to the present embodiment configured as described above will be described below.
[0043]
In FIG. 1, the processing control information creating means 20 of the transmitting device 31 creates control information related to program processing, for example, processing control information indicating processing control for each program as shown in Table 1, and program specification information creating means. 3 is supplied. In Table 1, the machining control information is represented by 8 bits, and is represented by bits 7 to 0.
[0044]
[Table 1]

The above editing includes editing in the time axis direction, that is, changing the order of the video frames, deleting a part of them, connecting a plurality of videos, or editing within one frame, that is, part within one frame. This includes the one that replaces or cuts out the video and the one that extracts the still image.
[0045]
Here, it is assumed that a program and processing control information are sent as follows.
[0046]
[Table 2]

In the receiving device 32, the processing control information extraction unit 21 extracts the processing control information from the program specification information storage unit 11 and supplies the processing control information to the processing control unit 22, and the processing control unit 22 controls the processing content of the processing unit 23. In the case of Table 2, in the news, the processing control information is 0001xxx0, so it is possible to edit, for example, change the order of the time axis direction, and to change the attribute, for example, to cut out the video into a graphic icon However, redistribution is not allowed. In the drama, since the processing control information is 0011xxx0, it is possible to edit, for example, change the order in the time axis direction. However, attribute change, for example, cutting out video into graphic icons or redistribution is not permitted. . In the movie, since the processing control information is 1xxx1xxx0, editing, attribute change, and redistribution are not permitted. Processing, redistribution, and display are prohibited for paid programs. In the viewer-created video, since the process control information is 0000xxx, any of editing, attribute change, and redistribution is permitted.
[0047]
The processing control unit 22 instructs the processing unit 23 on a processing method such as editing based on the processing control information.
[0048]
In the first embodiment of the present invention, the process control information is included in the program specification information, but the present invention is not limited to this.
[0049]
The processing control information shown in Table 1 is 8 bits, but is not limited to 8 bits.
[0050]
Further, as examples of processing, editing, attribute change, and re-distribution are taken up, but not limited to these.
[0051]
As described above, according to the first embodiment of the present invention, it is possible to prevent the receiving device 32 from processing the program by the processing control information added to each program broadcast by the transmitting device 31. On the other hand, in the receiving device 32, the program can be freely processed within the range permitted by the transmitting device 31, so that there is an advantage that the opportunity for using the broadcast is increased.
[0052]
The receiving device 32 of the present embodiment is an example of the receiving device of the present invention, and the processing control means 22 and the processing means 23 of the present embodiment are examples of the processing means of the present invention. Further, the machining control information of the present embodiment is an example of the machining control information of the present invention, and the machining control information of the present embodiment also serves as post-processing information and machining history information of the present invention. That is, the edit prohibition and edit permission of the present embodiment are examples of the edit control information of the present invention, and the process prohibition and process permission of the present embodiment are examples of the process control information of the present invention. Attribute change prohibition and attribute change permission are examples of attribute change information of the present invention. Redistribution prohibition and redistribution permission of this embodiment are examples of post-processing information of the present invention. Display prohibition and display permission are examples of post-processing information of the present invention.
[0053]
(Second Embodiment)
FIG. 2 is a block diagram showing a program transmission method and a receiving apparatus according to the second embodiment of the present invention, in which generation management information is transmitted. 2, 1 to 8 and 11 are the same as the conventional configuration shown in FIG. 9, 20 to 23, 31 and 32 are the same as the first embodiment of the present invention shown in FIG. Is generation management information creation means, 43 is distribution means, 44 is generation management information change means, 45 is attribute information change means, 46 is processing control information change means, and 47 is a network such as the Internet.
[0054]
Hereinafter, a description will be given with reference to FIG. In the transmission device 31, the generation management information creating unit 42 creates, for example, generation management information (bit 3 of the machining control information) shown in Table 3 and supplies it to the machining control information creating unit 20. In the generation management information (bit 3) in Table 3, 0 represents the primary copyright holder and 1 represents the secondary copyright holder. The attribute information is bit 2 of the processing control information, the attribute 0 is video, and the attribute 1 is graphic information.
[0055]
[Table 3]

In the receiving device 32, the video is edited in the time axis direction by the processing means 23, that is, a part of the video is extracted, and an icon is created from the video. Of the processing information extracted by the processing control information extracting means 21, the generation management information is zero. Here, the generation management information changing means 44 of the receiving device 32 rewrites the generation management information to 1 by processing the viewer-created video. This indicates that it is a secondary processor. Further, since the graphic icon is created from the video, the attribute information changing unit 45 notifies the processing control information changing unit 46 that the attribute has been changed. Table 4 shows the processing control information after rewriting on the receiving side 32.
[0056]
[Table 4]

The processing control information changing unit 46 changes the processing control information as shown in Table 4, and the distribution unit 43 distributes the modified program and the modified processing control information via the Internet 47. Other operations are the same as those of the first embodiment of the present invention shown in FIG.
In the second embodiment of the present invention, the process control information is included in the program specification information, but the present invention is not limited to this.
[0057]
As described above, according to the second embodiment of the present invention, the program is prevented from being processed by the receiving side 3 by the program specification information added to each program broadcasted by the transmitting side 31. In addition to being able to indicate the copyright owner's generation, it is also possible to indicate that the attribute has been changed, and it is possible to manage the copyright owner's generation and attribute changes.
[0058]
The receiving device 32 of the present embodiment is an example of the receiving device of the present invention, and the processing control means 22, processing means 23, processing control information changing means 46, attribute information changing means 45, generation management of the present embodiment. The information changing unit 44 is an example of the processing unit of the present invention. Further, the machining control information of the present embodiment is an example of the machining control information of the present invention, and the machining control information of the present embodiment also serves as post-processing information and machining history information of the present invention. That is, the edit prohibition and edit permission of the present embodiment are examples of the edit control information of the present invention, and the process prohibition and process permission of the present embodiment are examples of the process control information of the present invention. Attribute change prohibition and attribute change permission are examples of attribute change information of the present invention. Redistribution prohibition and redistribution permission of this embodiment are examples of post-processing information of the present invention. Display prohibition and display permission are examples of post-processing information of the present invention. The attribute information of the present embodiment is an example of information indicating whether the attribute of the present invention has been changed. Generation management of the present embodiment Information and attribute information are examples of processing history information of the present invention.
[0059]
(Third embodiment)
FIG. 3 is a block diagram showing a program transmission method and a receiving apparatus according to the third embodiment of the present invention, where a program is processed and recorded. In FIG. 3, 1 to 11 are the same as the conventional configuration shown in FIG. 9, 20 to 23, 31 and 32 are the same as those of the first embodiment of the present invention shown in FIG. 2 is the same as that of the second embodiment of the present invention shown in FIG.
[0060]
Hereinafter, a description will be given with reference to FIG. On the receiving side 32, the program processed by the processing means 23 is recorded in the recording means 51. On the other hand, the process control information of the program extracted by the process control information extracting means 21 is shown in Table 5. In Table 5, whether recording is possible is indicated by bit 1 of the process control information, 0 indicates recording is possible, and 1 indicates recording is not possible.
[0061]
[Table 5]

In the receiving device 32, since bit 0 of the processing control information is 0, recording is performed by the recording means 51. Other operations are the same as those of the first embodiment of the present invention shown in FIG.
[0062]
In the third embodiment of the present invention, the process control information is included in the program specification information, but the present invention is not limited to this.
[0063]
As described above, according to the third embodiment of the present invention, when the processing control information added to each program broadcast by the transmission device 31 is recordable, the processed program is displayed. There is an advantage that it can be recorded in the recording means on the receiving side 32.
[0064]
The receiving device 32 of the present embodiment is an example of the receiving device of the present invention, and the processing control means 22, the processing means 23, and the processing control information changing means 46 of the present embodiment are examples of the processing means of the present invention. is there. Further, the machining control information of the present embodiment is an example of the machining control information of the present invention, and the machining control information of the present embodiment also serves as post-processing information and machining history information of the present invention. In addition, “not recordable” and “recordable” in the present embodiment are examples of post-processing information of the present invention.
[0065]
(Fourth embodiment)
FIG. 4 is a block diagram showing a program transmission method and a receiving apparatus according to the fourth embodiment of the present invention. In the case where the processing control information is transmitted as watermark information, the processing control information is not program specification information but compressed video. The difference from Embodiment 1 of the present invention shown in FIG. 1 is that the information is embedded as watermark information. In FIG. 4, 1, 3 to 5, 7 to 8, 10, and 11 are the same as the conventional configuration shown in FIG. 9, and 22, 23, and 31 to 32 are the first embodiment of the present invention shown in FIG. , 55 is watermark information creating means, 56 is second compression means, 57 is second decoding means, and 58 is first processing control information separating means.
[0066]
FIG. 5 is a diagram showing an example of the second compression means 56, in which 60 is program information inputted from the program data 1, 61 is watermark information inputted from the watermark information creating means 55, and 62 is watermark information embedded DCT. Means 63, quantization means 64, inverse quantization means 64, watermark information removal inverse DCT (Discrete Cosin Transform) means 66, first motion compensation means 67, VLC (Variable Length Coding) means 68, synthesis Means 69 is an encoding control means.
[0067]
FIG. 6 is a diagram showing an example of the second decoding means 57, where 70 is the separated compressed video information output from the multiplexed information separating means 8, 71 is a VLD (Variable Length Decoding) means, and 72 is the inverse quantum. 73 is watermark information separation inverse DCT means, 74 is data including watermark information, 75 is second motion compensation means, and 76 is decoded video information.
[0068]
Hereinafter, description will be made with reference to FIGS. In the transmission device 31, the processing control information is generated by the processing control information generation unit 20 and is supplied to the watermark information generation unit 55. The watermark information 61 created by the watermark information creating means 55 is supplied to the watermark information embedding DCT means 62 of the second compression means 56. In the watermark information embedding DCT means 62, the DCT coefficient is changed in accordance with the watermark information 61 created by the watermark information creating means 55. That is, assuming that the result of DCT transform of 8 × 8 pixels is R (u, v) (u, v = 0 to 7), for example, (u, v) = (7, Assume that one bit of 7) is used. If the image size is 720 × 480, 30 frames / second, an information amount of 162,000 bits (90 × 60 × 30 bits) per second can be secured. It is possible to embed.
[0069]
The DCT coefficient in which watermark information is embedded by the watermark information embedding DCT means 62 is quantized by the quantization means 63 and supplied to the VLC means 67, and after passing through the inverse quantization means 64, by the watermark information removal inverse DCT means 65. (U, v) = (7, 7) is returned to the original value and added to the first motion compensation means 66. The output of the VLC means 67 is applied to the synthesizing means 68. The output of the synthesizing unit 68 is returned to the quantizing unit 63 through the encoding control unit 69. The output of the second compression means 56 is multiplexed with the program specification information by the multiplexing means 4 and transmitted from the transmission means 5.
[0070]
On the receiving side 32, the signal received by the receiving means 7 is separated by the demultiplexing means 8 from the program specification information and the compressed video information as the program data, and the compressed video information 70 is added to the second decoding means 57, Variable length decoding is performed by the VLD means 71, inverse quantization is performed by the inverse quantization means 72, inverse DCT transform is performed by the watermark information separation inverse DCT means 73, and processing control information of the R (u, v) is used. , (U, v) = (7, 7) are separated and output as watermark information 74. The output of the watermark information separation inverse DCT means 73 is output as decoded video information 76 via the second motion compensation means 75 and is added to the processing means 23.
[0071]
On the other hand, the watermark information 74 is added to the first processing control information separating means 58, the processing control information is separated and added to the processing means 23, and the program data is processed according to the processing control information. In this case, for example, display is prohibited in the pay program shown in Table 1, so that not only processing but also display is not performed. Other operations are the same as those of the first embodiment of the present invention shown in FIG.
[0072]
The watermark information embedding method in the watermark information embedding DCT means 62 is not limited to the method of changing (u, v) = (7, 7) as shown in the present embodiment.
[0073]
Also, the method of embedding watermark information in the second compression means 56 is not limited to the method using DCT coefficients as shown in this embodiment, but may be a method using embedding in quantization or a method using embedding in motion compensation.
[0074]
As described above, the fourth embodiment of the present invention has an advantage that the safety is increased because the processing control information can be embedded as watermark information in the compressed video information.
[0075]
The receiving device 32 of the present embodiment is an example of the receiving device of the present invention, and the processing control means 22 and the processing means 23 of the present embodiment are examples of the processing means of the present invention. The second decoding means 57 and the first processing control information separating means 58 are examples of the processing control information extracting means of the present invention.
[0076]
(Fifth embodiment)
FIG. 7 is a block diagram showing a program transmission method and a receiving apparatus according to the fifth embodiment of the present invention, where the processing control information is embedded and transmitted as non-compressed video information as watermark information. 1 is different from the embodiment of the present invention shown in FIG. 1 in that it is embedded as watermark information in uncompressed video information instead of program specification information. 7, 1-2, 4-5, 7-10 are the same as the conventional configuration shown in FIG. 9, and 20, 22, 23, 31-32 are the first embodiment of the present invention shown in FIG. , 55 is the same as that of the fourth embodiment of the present invention shown in FIG. 4, 81 is watermark information embedding means, and 82 is second processing control information extracting means.
[0077]
Hereinafter, a description will be given with reference to FIG. On the transmission side 31, processing control information is generated by the processing control information generating unit 20 and supplied to the watermark information generating unit 55. The watermark information 61 created by the watermark information creating means 55 is converted into the uncompressed video information supplied from the program data 1 by the watermark information embedding means 81, for example, when the uncompressed video information is 8 bits per pixel. Embedded in. On the receiving side, processing control information is extracted from the output signal of the first decoding means 9 by the second processing control information extracting means 82 and added to the processing means 23. Other operations are the same as those in the first embodiment of the present invention.
[0078]
Note that bit 0 of the processing information indicates whether or not display is possible, but when the display is impossible, the processing means 23 can stop the display.
[0079]
Needless to say, the method of embedding watermark information is not limited to the method of embedding in the least significant bit of the video information as in this embodiment.
[0080]
As described above, in the fifth embodiment of the present invention, the processing control information can be embedded in the uncompressed video information as watermark information, so that the safety of the decoded video signal can be maintained. Has advantages.
[0081]
The receiving device 32 of the present embodiment is an example of the receiving device of the present invention, and the processing control means 22 and the processing means 23 of the present embodiment are examples of the processing means of the present invention. The second machining control information extracting means 82 and the first machining control information extracting means 82 are examples of the machining control information extracting means of the present invention.
[0082]
(Sixth embodiment)
FIG. 8 is a block diagram showing a program information transmission method according to the sixth embodiment of the present invention. FIG. 1 shows that the transmission side provides processing control information to the reception side for a fee in response to a request from the reception side. It differs from the embodiment of the present invention shown. 8, 1 to 5 and 7 to 11 are the same as the conventional configuration shown in FIG. 9, and 22 to 23 and 31 to 32 are the same as the first embodiment of the present invention shown in FIG. 89 is encryption processing control information creation means, 90 is key creation means, 91 is communication means, 92 is communication control means, 93 is key extraction means, 94 is encryption processing control information extraction means, and 95 is the Internet.
[0083]
Hereinafter, a description will be given with reference to FIG. On the receiving side 32, when a request for providing program processing information for a fee is sent from the communication control means 92 via the Internet 90, on the transmitting side 31, the communication means 91 receives the request and the key creation means 90 creates an encryption key. The information creation means 89 creates encrypted processing information, sends it to the program specification information creation means 3, and multiplexes it with the program specification information. On the receiving side, the key extraction means 93 extracts the encryption key, sends it to the encryption processing control information extraction means 94, decrypts the encrypted processing information, and sends it to the processing control means 22. Other operations are the same as those in the first embodiment of the present invention.
[0084]
The key extracting means 93 and the encrypted processing control information extracting means 94 of the present embodiment are examples of the processing control information extracting means of the present invention, and the processing control means 22 and the processing means 23 of the present embodiment are the present invention. This is an example of the processing means.
[0085]
The above key is the same in the case of the fourth embodiment of the present invention shown in FIGS. 4 to 6 and the case of the fifth embodiment of the present invention shown in FIG. 7, and the correct key is distributed from the transmission side. Needless to say, it is possible to extract the watermark information or the video information of the program only when the program is present.
[0086]
Further, bit 0 of the processing information indicates whether or not display is possible. If the display is impossible, the processing means 23 can stop the display.
[0087]
As described above, in the fifth embodiment of the present invention, processing control information can be encrypted and sent, and processing can be permitted by charging, so that safety can be maintained and paying for processing can be provided. Has the advantage that can be performed.
[0088]
In the first to sixth embodiments of the present invention, it is needless to say that copy control information such as copy prohibition, one-time copy permission, no more copy permission, and copy freedom may be included in the processing control information. In this case, the copy control information corresponds to post-processing information of the present invention.
[0089]
Further, all or some of the operations of all or some of the steps of the program transmission method of the present invention may be realized by hardware, or may be realized by software by a computer program.
[0090]
Further, all or part of the functions of all or part of the receiving apparatus of the present invention may be realized by hardware, or may be realized by software by a computer program.
[0091]
A program recording medium storing a program and / or data for causing a computer to execute all or some of the operations of all or some of the steps of the program transmission method of the present invention is readable by a computer. The program recording medium in which the read program and / or data executes the function in cooperation with the computer also belongs to the present invention.
[0092]
A program recording medium recording a program and / or data for causing a computer to execute all or part of the functions of all or a part of the receiving apparatus of the present invention, which is readable by a computer, The program recording medium in which the read program and / or data executes the function in cooperation with the computer also belongs to the present invention.
[0093]
【The invention's effect】
As is apparent from the above description, the present invention has an advantage in that it is possible to prevent a program from being arbitrarily processed by the receiving side for each program broadcasted by the transmitting side, while the transmitting side permits. Since the program can be processed freely within the range, it is possible to provide a program transmission method, a receiving apparatus, and a program recording medium that have the advantage of increasing the opportunity to use broadcasting.
[0094]
In addition to the above effects, the present invention provides a program transmission method, a receiving apparatus, and a program recording medium that have an advantage that an attribute change history can be stored for each program broadcast by the transmission side. I can do it.
[0095]
In addition to the above effects, the present invention can provide a program transmission method, a receiving apparatus, and a program recording medium that have the advantage of being able to indicate the generation of the copyright holder.
[0096]
Further, the present invention provides a program that is convenient in that the processed program can be recorded on the receiving side if the processing control information added to each program broadcasted by the transmitting side is recordable. A transmission method, a receiving device, and a program recording medium can be provided.
[0097]
In addition, the present invention can provide a program transmission method, a receiving apparatus, and a program recording medium, which have the advantage of increasing safety because the processing control information can be embedded in the compressed video information as watermark information.
[0098]
The present invention also provides a program transmission method, a receiving apparatus, and an advantage that processing control information can be embedded in uncompressed video information as watermark information, so that safety against a decoded video signal can be maintained. A program recording medium can be provided.
[0099]
In addition, the present invention can provide a program transmission method, a receiving apparatus, and a program recording medium, which have the advantage that safety can be maintained because processing control information is encrypted and sent.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a program transmission method and a receiving apparatus according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a schematic configuration of a program transmission method and a receiving apparatus according to a second embodiment of the present invention.
FIG. 3 is a block diagram showing a schematic configuration of a program transmission method and a receiving apparatus according to a third embodiment of the present invention.
FIG. 4 is a block diagram illustrating a schematic configuration of a program transmission method and a receiving apparatus according to a fourth embodiment of the present invention.
FIG. 5 is a block diagram showing a schematic configuration of second compression means in a fourth embodiment of the present invention.
FIG. 6 is a block diagram showing a schematic configuration of second decoding means in the fourth embodiment of the present invention.
FIG. 7 is a block diagram showing a schematic configuration of a program transmission method and a receiving apparatus according to a fifth embodiment of the present invention.
FIG. 8 is a block diagram illustrating a schematic configuration of a program transmission method and a receiving device according to a sixth embodiment of the present invention.
FIG. 9 is a conventional configuration diagram.
[Explanation of symbols]
1 Program data
2 First compression means
4 Multiplexing means
8 Demultiplexing means
9 First decoding means
10 Display means
20 Machining control information creation means
21 Machining control information extraction means
55 Watermark information creation means
56 Second compression means
57 Second decoding means

Claims (32)

In a program transmission method in which a transmission device transmits a program including digital video information to a reception device,
Processing control information indicating whether or not the receiving device can process the program is transmitted from the transmitting device to the receiving device together with the program ;
The program transmission method , wherein the processing control information includes processing history information indicating processing history of the program. In a program transmission method in which a transmission device transmits a program including digital video information to a reception device,
Processing control information indicating whether or not the receiving device can process the program is transmitted from the transmitting device to the receiving device together with the program ;
The program transmission method , wherein the processing control information includes post-processing information indicating processing after processing of the program. 3. The program transmission method according to claim 1, wherein the processing control information includes editing control information for controlling editing of the program. 4. The program transmission method according to claim 3 , wherein the editing control information includes time axis direction editing information for temporally editing the program. 4. The program transmission method according to claim 3 , wherein the editing control information includes in-frame editing information for spatially editing the program. 4. The program transmission method according to claim 3 , wherein the editing control information includes still image extraction information for extracting a still image from the program. 3. The program transmission method according to claim 1, wherein the processing control information includes attribute change information for changing an attribute of video information of the program. 3. The program transmission method according to claim 1, wherein the processing control information is embedded in the program data as a digital watermark. 9. The program transmission according to claim 8 , wherein said embedded in the program data as a digital watermark means that said processing control information is embedded in said data in the process of compressing said data. Method. 9. The program transmission according to claim 8 , wherein “being embedded in the program data as a digital watermark” means that the processing control information is embedded in the data before the data is compressed. Method. 3. The program transmission method according to claim 1, wherein the processing control information is encrypted and transmitted. 3. The program transmission method according to claim 2, wherein the post-processing information includes information for prohibiting redistribution of the program or permitting redistribution. 3. The program transmission method according to claim 2, wherein the post-processing information includes information that prohibits or permits display of the program. According to claim 1 or 2, wherein the program transmission method program transmitted by the receiving means for receiving said processing control information about the program,
Machining control information extracting means for extracting the machining control information;
A receiving device comprising processing means for processing the program according to the processing control information. The processing control information includes editing control information for controlling editing of the program,
15. The receiving apparatus according to claim 14 , wherein the processing unit edits the program according to the editing control information. The edit control information includes time axis direction edit information for temporally editing the program,
16. The receiving apparatus according to claim 15 , wherein the processing unit performs the time-axis direction editing on the program according to the time-axis direction editing information. The editing control information includes in-frame editing information for spatially editing the program,
16. The receiving apparatus according to claim 15 , wherein the processing unit performs the in-frame editing for the program according to the in-frame editing information. The edit control information includes still image extraction information for extracting a still image from the program,
16. The receiving apparatus according to claim 15 , wherein the processing unit extracts a still image from the program according to the still image extraction information. The processing control information includes attribute change information for changing attributes of video information of the program,
15. The receiving apparatus according to claim 14 , wherein the processing unit changes the attribute of the video information of the program according to the attribute change information. The processing control information extraction unit issues extract the processing history information,
15. The receiving apparatus according to claim 14 , wherein the processing unit updates the extracted processing history information according to the processing control information. The receiving apparatus according to claim 20 , wherein the processing history information includes information indicating whether an attribute of video information of the program has been changed. 21. The receiving apparatus according to claim 20 , wherein the processing history information includes generation management information for managing a generation of a copyright holder of the program. Before Symbol processing control information extraction unit extracts the processing post-processing information,
15. The receiving apparatus according to claim 14 , wherein the processing means performs post-processing on the processed program according to the post-processing information. 15. The receiving apparatus according to claim 14 , wherein the post-processing information includes recording permission information indicating whether recording of the processed program is permitted. 15. The receiving apparatus according to claim 14 , wherein the processing control information is embedded as digital watermark in the program data. 26. The receiving apparatus according to claim 25 , wherein “being embedded in the program data as a digital watermark” means that the processing control information is embedded in the data in the process of compressing the data. . 26. The receiving apparatus according to claim 25 , wherein “being embedded in the program data as a digital watermark” means that the processing control information is embedded in the data before the data is compressed. . The receiving apparatus according to claim 14 , wherein the processing control information is transmitted after being encrypted. 15. The receiving apparatus according to claim 14, wherein the post-processing information includes information that prohibits or permits re-distribution of the program after the processing. 15. The receiving apparatus according to claim 14, wherein the post-processing information includes information that prohibits or permits display of the program after processing. A program for causing a computer to execute a process of transmitting processing control information indicating whether or not the receiving apparatus can process the program in the program transmission method according to claim 1 together with the program from the transmitting apparatus to the receiving apparatus. A program recording medium on which is recorded,
A program recording medium readable by a computer. The receiving apparatus according to claim 14, wherein a receiving means for receiving the claims 1 or program transmitted by the program transmission method 2 described and said processing control information about the program, the machining control of extracting the processing control information A program recording medium recording a program for causing a computer to function as information extraction means and processing means for processing the program according to the processing control information ,
A program recording medium readable by a computer.

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