JPH0644755A - ビデオ信号の伝送方法及び記録装置 - Google Patents
ビデオ信号の伝送方法及び記録装置Info
- Publication number
- JPH0644755A JPH0644755A JP4218446A JP21844692A JPH0644755A JP H0644755 A JPH0644755 A JP H0644755A JP 4218446 A JP4218446 A JP 4218446A JP 21844692 A JP21844692 A JP 21844692A JP H0644755 A JPH0644755 A JP H0644755A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video signal
- circuit
- analog
- video
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/28—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records the magazine having a cylindrical shape with horizontal axis
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
- G11B20/00195—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00246—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the recorder
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
- G11B20/00768—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/032—Electronic editing of digitised analogue information signals, e.g. audio or video signals on tapes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
- H04N5/9206—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a character code signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
- H04N7/0887—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
- H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
- H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
- H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
Abstract
オ入力端子に供給するアナログコピーを禁止できるよう
にする。 【構成】ID発生回路7により、ビデオ信号の垂直ブラ
ンキング期間に、著作権保護情報、カテゴリー情報を重
畳して伝送する。ID検出回路20により、この著作権
保護情報、カテゴリー情報からコピー禁止かどうかを判
断し、コピー禁止の場合には、ビデオ又はオーディオの
記録を禁止する。
Description
ビデオ信号のコピーを禁止するためのビデオ信号の伝送
方法及び記録装置に関する。
ても殆どの音質の劣化が無いことから、著作権を保護す
るために、コピーを禁止する必要がある。そこで、ディ
ジタル出力をディジタル入力に供給してダビングをする
ディジタルコピーについては、ディジタルデータ中にコ
ピー禁止のビットを立てたり、スクランブルをかけたり
等、コピーを禁止するための種々の方法が提案されてい
る。
ナログコピーでも非常に良質のコピーを行えるため、デ
ィジタルコピーを禁止しても、アナログ出力をアナログ
入力に供給するアナログコピーが可能とされていては、
著作権を完全に保護することはできない。
スには、衛星放送、地上放送、VTR、ビデオディスク
等、種々のものがある。更に、衛星放送にも、有料放
送、無料放送があり、著作権を守るべき放送、著作権を
放棄した放送がある。これら、入力されるソースが保護
するべきかどうかに応じて、コピーの禁止/許可を制御
すべきである。
の目的は、ディジタルVTRのアナログコピーを禁止で
きるビデオ信号の伝送方法及び記録装置を提供すること
にある。
が著作権を守るべきかどうかに応じて、アナログコピー
の禁止/許可を制御できるビデオ信号の伝送方法及び記
録装置を提供することにある。
の垂直ブランキング期間に、著作権保護情報、カテゴリ
ー情報を重畳して伝送するようにしたビデオ信号の伝送
方法。
グ期間に、著作権保護情報、カテゴリー情報を重畳して
伝送されたビデオ信号を入力し、著作権保護情報、カテ
ゴリー情報からコピー禁止かどうかを判断し、コピー禁
止の場合には、ビデオ又はオーディオの記録を禁止する
ようにしたビデオ信号の記録装置である。
コピーをするアナログコピーの禁止を制御することがで
きる。また、ソースに応じて、コピー禁止を制御するこ
とができる。
照して説明する。図1は、この発明の一実施例を示すも
のである。図1において、31はディジタルVTRの再
生系の構成を示し、32はディジタルVTRの記録系の
構成を示すものである。今、ディジタルVTR31から
ディジタルVTR32に、アナログコピーを行うものと
する。ディジタルVTR31からディジタルVTR32
にアナログコピーを行うために、ディジタルVTR31
のオーディオ出力端子11とディジタルVTR32のオ
ーディオ入力端子15とが接続され、ディジタルVTR
31のビデオ出力端子12とディジタルVTR32のビ
デオ入力端子14とが接続される。
グ期間にID信号を重畳し、このID信号を利用して、
アナログコピーを禁止するようにしている。始めに、こ
のID信号について説明する。
の図である。図2に示すように、ID信号は、垂直ブラ
ンキング期間に挿入される20ビットの信号である。こ
の20ビットの信号の前には、リファレスビットが設け
られる。
6ビットのワード0、4ビットのワード1、4ビットの
ワード2、6ビットのCRCからなる。ワード0には、
基本パラメータ、伝送形式に関する識別情報が挿入され
る。ワード1には、著作権の有無、オリジナルかどうか
を示すビットが含められる。たとえばワード1の第3ビ
ットが著作権の有無を示すビットであり、「0」で著作
権の保護あり、「1」で著作権無とされる。ワード1の
第4ビットがオリジナルかどうかを示すビットであり、
「0」は指定無、「1」は商業的に発行された録音済み
ソフトウェアとれる。ワード2には、機器のカテゴリー
コードが挿入される。
このID信号からコピー禁止かどうかを判断でき、これ
に応じて、記録装置の記録動作を制御できる。
ントディジタルビデオ信号が圧縮されて記録されてい
る。このディジタルビデオ信号がテープ2で再生され、
データ再生回路3に供給される。データ再生回路3で、
テープ1の記録信号が再生される。この再生信号がオー
ディオ再生回路4及びデータ伸長回路5に供給される。
データ伸長回路5で、再生されたビデオ信号が伸長され
る。このデータ伸長回路5の出力は、加算回路8に供給
される。また、オーディオ再生回路4で、オーディオ信
号が再生される。このオーディオ信号がD/Aコンバー
タ9に供給される。D/Aコンバータ9からは、アナロ
グのオーディオ信号が出力される。このアナログオーデ
ィオ信号が出力端子11から出力される。
ードビット検出回路6に供給される。コピーガードビッ
ト検出回路6で、再生しているテープの信号がコピー禁
止かどうかが判断される。コピーガードビット検出回路
6の出力がID信号発生回路7に供給される。ID信号
発生回路7は、図2及び図3に示すようなID信号を発
生する。
ら、ID信号発生回路7により、ID信号の著作権ビッ
トを立てる(著作権ビットを「0」にする)。このID
信号が加算回路8に供給され、垂直ブランキング期間に
ID信号が重畳される。
に供給される。D/Aコンバータ10で、ビデオ信号が
アナログ信号に変換される。このアナログビデオ信号が
出力端子12から出力される。
号及び出力端子12からのアナログビデオ信号は、ディ
ジタルVTR32のアナログオーディオ入力端子13及
びアナログビデオ入力端子14に供給される。入力端子
13からのアナログオーディオ信号がA/Dコンバータ
15に供給される。入力端子14からのアナログビデオ
信号がA/Dコンバータ16に供給される。
かディジタル化される。このA/Dコンバータ15の出
力がオーディオ記録回路17に供給される。
ィジタル化される。このA/Dコンバータ16の出力が
スクランブル回路18に供給される。また、このビデオ
信号の垂直ブランキング期間の信号から、ID信号が検
出される。このID信号から、コピーを許可するかどう
かが判断される。
フ、スイッチ23がオンとされる。この場合には、スク
ランブル回路18でのスクランブルは行われず、A/D
コンバータ16の出力は、スクランブル回路18を介し
て、ビット圧縮回路19に供給される。ビット圧縮回路
19でビデオ信号が圧縮符号化される。このビット圧縮
回路19の出力が加算回路24に供給される。また、オ
ーディオ記録回路17の出力がスイッチ回路23を介し
て加算回路24に供給される。加算回路24で、ビデオ
信号とオーディオ信号とが合成される。この加算回路2
4の出力がデータ記録回路25に供給される。データ記
録回路25の出力がヘッド26に供給され、テープ27
に記録される。
ン、スイッチ23がオフとされる。この場合には、キー
発生回路21からスイッチ22を介してスクランブル回
路18にキーが供給され、このキーにより、ビデオ信号
にスクランブルがかけられる。このスクランブルがかけ
られたビデオ信号がビット圧縮回路19に供給される。
ビット圧縮回路19でビデオ信号が圧縮符号化される。
このビット圧縮回路19の出力が加算回路24に供給さ
れる。ビット圧縮回路19の出力が加算回路24に供給
される。一方、スイッチ回路23はオフなので、オーデ
ィオ信号はミュートされる。この加算回路24の出力が
データ記録回路25に供給される。データ記録回路25
の出力がヘッド26に供給され、テープ27に記録され
る。このように、コピー禁止の場合には、ビデオ信号に
スクランブルがかけられ、オーディオ信号がミュートさ
れてしまう。
ログ信号によるコピー禁止の制御を行える。また、複数
のソースに応じて、コピー禁止機能を制御することがで
きる。例えば、図4に示すように、地上放送のチューナ
51、ビデオディスク52、VTR53、有料有線テレ
ビジョン(チューナ54、デコーダ55)、有料衛星放
送(チューナ56、デコーダ57)等がVTR50にビ
デオ信号を与えるソースとなる。この場合、ソースがビ
デオディスク52やVTR53の時ばかりでなく、有料
有線テレビジョンや有料衛星放送の時についても、コピ
ー禁止とする必要がある。ビデオディスク52やVTR
53については、上述の一実施例と同様に、アナログコ
ピーを禁止することがてきる。また、デコーダ55及び
デコーダ57にID信号を付加する機能を設け、このI
D信号の著作権ビットを立てるようにすれば、有料有線
テレビジョンや有料衛星放送についてコピー禁止にする
ことができる。更に、コピー禁止の制御について、カテ
ゴリーコードを用いることができる。
ナログ入力へ信号を送ってコピーをするアナログコピー
を禁止することができる。また、この発明によれば、ソ
ースに応じて、コピー禁止を制御することができる。
る。
る。
ブロック図である。
Claims (2)
- 【請求項1】 ビデオ信号の垂直ブランキング期間に、
著作権保護情報、カテゴリー情報を重畳して伝送するよ
うにしたビデオ信号の伝送方法。 - 【請求項2】 ビデオ信号の垂直ブランキング期間に、
著作権保護情報、カテゴリー情報を重畳して伝送された
ビデオ信号を入力し、 上記著作権保護情報、カテゴリー情報からコピー禁止か
どうかを判断し、 コピー禁止の場合には、ビデオ又はオーディオの記録を
禁止するようにしたビデオ信号の記録装置。
Priority Applications (19)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4218446A JPH0644755A (ja) | 1992-07-24 | 1992-07-24 | ビデオ信号の伝送方法及び記録装置 |
ES93305597T ES2129069T3 (es) | 1992-07-24 | 1993-07-16 | Transmision, grabacion y reproduccion de señal de video. |
DE69323938T DE69323938T2 (de) | 1992-07-24 | 1993-07-16 | Übertragung, Aufzeichnung und Wiedergabe eines Videosignals |
EP97202825A EP0830025B1 (en) | 1992-07-24 | 1993-07-16 | Video signal transmission, recording and reproduction |
DE69329507T DE69329507T2 (de) | 1992-07-24 | 1993-07-16 | Übertragung, Aufzeichnung und Wiedergabe eines Videosignals |
ES97202824T ES2150736T3 (es) | 1992-07-24 | 1993-07-16 | Transmision, grabacion y reproduccion de una señal de video. |
EP93305597A EP0580367B1 (en) | 1992-07-24 | 1993-07-16 | Video signal transmission, recording and reproduction |
DE69328909T DE69328909T2 (de) | 1992-07-24 | 1993-07-16 | Übertragung, Aufzeichnung und Wiedergabe eines Videosignals |
ES97202825T ES2146954T3 (es) | 1992-07-24 | 1993-07-16 | Transmision, grabacion y reproduccion de señales de video. |
EP97202824A EP0830024B1 (en) | 1992-07-24 | 1993-07-16 | Video signal transmission, recording and reproduction |
US08/094,433 US5418853A (en) | 1992-07-24 | 1993-07-21 | Apparatus and method for preventing unauthorized copying of video signals |
KR1019930013754A KR100302815B1 (ko) | 1992-07-24 | 1993-07-21 | 비디오신호의전송방법및전송장치 |
TW087206227U TW377088U (en) | 1992-07-24 | 1993-07-22 | Apparatus for preventing unauthorized copying of video signals |
BR9302982A BR9302982A (pt) | 1992-07-24 | 1993-07-23 | Processo de transmissao de um sinal de video,aparelho de gravacao de video,aparelho de reproducao de video,aparelho de gravacao e reproducao de video,processo de gravacao de um sinal de video,processo de reproducao de um sinal de video,processo de gravacao e reproducao de um sinal de video,aparelho para transmissao de um sinal de video,e,aparelho,para recepcao de um sinal de video |
CA002101200A CA2101200C (en) | 1992-07-24 | 1993-07-23 | Apparatus and method for preventing unauthorized copying of video signals |
AU42157/93A AU675789C (en) | 1992-07-24 | 1993-07-23 | Apparatus and method for preventing unauthorized copying of video signals |
CN93116595A CN1042286C (zh) | 1992-07-24 | 1993-07-24 | 防止未经允许地复制视频信号的方法和装置 |
AU17786/97A AU701116B2 (en) | 1992-07-24 | 1997-04-08 | Apparatus and method for preventing unauthorized copying of video signals |
US08/858,972 USRE36763E (en) | 1992-07-24 | 1997-05-20 | Apparatus and method for preventing unauthorized copying of video signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4218446A JPH0644755A (ja) | 1992-07-24 | 1992-07-24 | ビデオ信号の伝送方法及び記録装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004003085A Division JP2004166302A (ja) | 2004-01-08 | 2004-01-08 | ビデオ信号の伝送方法及び記録装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0644755A true JPH0644755A (ja) | 1994-02-18 |
Family
ID=16720044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4218446A Pending JPH0644755A (ja) | 1992-07-24 | 1992-07-24 | ビデオ信号の伝送方法及び記録装置 |
Country Status (10)
Country | Link |
---|---|
US (2) | US5418853A (ja) |
EP (3) | EP0580367B1 (ja) |
JP (1) | JPH0644755A (ja) |
KR (1) | KR100302815B1 (ja) |
CN (1) | CN1042286C (ja) |
BR (1) | BR9302982A (ja) |
CA (1) | CA2101200C (ja) |
DE (3) | DE69328909T2 (ja) |
ES (3) | ES2129069T3 (ja) |
TW (1) | TW377088U (ja) |
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- 1993-07-16 DE DE69328909T patent/DE69328909T2/de not_active Expired - Lifetime
- 1993-07-16 EP EP93305597A patent/EP0580367B1/en not_active Expired - Lifetime
- 1993-07-16 ES ES97202825T patent/ES2146954T3/es not_active Expired - Lifetime
- 1993-07-16 DE DE69329507T patent/DE69329507T2/de not_active Expired - Lifetime
- 1993-07-16 EP EP97202824A patent/EP0830024B1/en not_active Expired - Lifetime
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Cited By (7)
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KR100398913B1 (ko) * | 1993-04-02 | 2003-09-19 | 소니 가부시끼 가이샤 | 화상정보 재생장치 및 방법 |
US7236320B2 (en) | 1994-12-22 | 2007-06-26 | Sony Corporation | Recording medium and apparatus for protecting copyrighted digital data |
KR100428530B1 (ko) * | 1995-03-31 | 2004-07-12 | 소니 가부시끼 가이샤 | 고선명비디오신호처리장치및방법 |
KR100411773B1 (ko) * | 1995-07-12 | 2004-02-18 | 지멘스 악티엔게젤샤프트 | 기록보호비디오신호수신장치 |
KR100430509B1 (ko) * | 1995-07-28 | 2004-08-30 | 소니 가부시끼 가이샤 | 전자장치동작제어방법 |
KR100583896B1 (ko) * | 1996-09-02 | 2006-10-04 | 소니 가부시끼 가이샤 | 비디오신호처리장치및비디오신호전송방법 |
KR100677000B1 (ko) * | 2000-03-02 | 2007-01-31 | 엘지전자 주식회사 | 영상신호 복사방지를 위한 부가정보 전송장치 및 전송방법 |
Also Published As
Publication number | Publication date |
---|---|
DE69329507D1 (de) | 2000-11-02 |
DE69328909T2 (de) | 2000-12-28 |
BR9302982A (pt) | 1994-02-22 |
EP0580367A3 (en) | 1994-08-17 |
EP0580367A2 (en) | 1994-01-26 |
KR940003365A (ko) | 1994-02-21 |
EP0830024A3 (en) | 1998-11-11 |
CN1085721A (zh) | 1994-04-20 |
DE69323938D1 (de) | 1999-04-22 |
EP0830025A3 (en) | 1998-11-11 |
EP0830025A2 (en) | 1998-03-18 |
EP0580367B1 (en) | 1999-03-17 |
CA2101200A1 (en) | 1994-01-25 |
TW377088U (en) | 1999-12-11 |
ES2129069T3 (es) | 1999-06-01 |
CN1042286C (zh) | 1999-02-24 |
EP0830025B1 (en) | 2000-06-21 |
EP0830024B1 (en) | 2000-09-27 |
EP0830024A2 (en) | 1998-03-18 |
USRE36763E (en) | 2000-07-04 |
ES2150736T3 (es) | 2000-12-01 |
DE69328909D1 (de) | 2000-07-27 |
DE69329507T2 (de) | 2001-05-03 |
CA2101200C (en) | 2003-07-15 |
ES2146954T3 (es) | 2000-08-16 |
AU675789B2 (en) | 1997-02-20 |
DE69323938T2 (de) | 1999-09-16 |
AU4215793A (en) | 1994-01-27 |
US5418853A (en) | 1995-05-23 |
KR100302815B1 (ko) | 2001-11-22 |
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