公开(公告)号：WO1996041468A1

公开(公告)日：1996-12-19

申请号：PCT/US1996007376

申请日：1996-05-22

Applicant: MACROVISION CORPORATION

Inventor： MACROVISION CORPORATION ,  RYAN, John ,  COPELAND, Gregory, C.

IPC: H04N05/913

CPC classification number: H04N21/8358 ,  G06F7/725 ,  G06F2211/007 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00123 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00536 ,  G11B20/00586 ,  G11B20/00601 ,  G11B20/00695 ,  G11B20/00884 ,  G11B20/00913 ,  H04L9/3247 ,  H04L2209/605 ,  H04N5/913 ,  H04N5/9261 ,  H04N7/08 ,  H04N7/165 ,  H04N2005/91335 ,  H04N2005/91342 ,  H04N2005/91364

Abstract: A method and apparatus for copyright protection for various recording media such as Digital Video Discs (DVDs) uses a combination of a Video Finger Print Signal and an Authenticating Signature to permit the player to handle either copy-protected or non-copy-protected media, in a manner that is difficult to compromise. Both a Video Finger Print Signal and an Authenticating Signature are recorded on the media only when copy-protection is required. The nature of this Authenticating Signature is such that it will not be transferred to illicit copies made on CD recorders. When either an original protected or an original non-protected disk is played, the presence or absence of the Authenticating Signature causes the player to correctly play the program video. All original DVDs therefore play normally. When a copy of a non-protected CD is played, the absence of the Video Print Signal also causes the player to correcly playback the video signal data. However, when a copy of a protected CD is played, the absence of the Authenticating Signature causes the player to prohibit the disk from playing normally.

Abstract translation: 用于诸如数字视频盘（DVD）的各种记录介质的版权保护的方法和装置使用视频指纹信号和认证签名的组合来允许玩家处理复制保护的或非受保护的媒体， 以一种难以妥协的方式。 视频指纹信号和认证签名都只有在需要复制保护时才会记录在媒体上。 这种认证签名的性质是不会转移到CD刻录机上的非法复制品。 当原始保护或原始未受保护的盘被播放时，认证签名的存在或不存在使得播放器正确地播放节目视频。 所有原始DVD因此正常播放。 当播放无保护CD的副本时，视频打印信号的不存在也使得播放器对视频信号数据进行更正的重放。 然而，当播放受保护的CD的副本时，缺少认证签名导致播放器禁止磁盘正常播放。

公开(公告)号：WO1995019668A1

公开(公告)日：1995-07-20

申请号：PCT/US1995000578

申请日：1995-01-12

Applicant: MACROVISION CORPORATION

Inventor： MACROVISION CORPORATION ,  RYAN, John, O.

IPC: H04H01/00

CPC classification number: H04H60/27 ,  G06Q40/00 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00413 ,  G11B20/0071 ,  G11B20/10527 ,  G11B27/031 ,  G11B27/102 ,  G11B27/34 ,  H04H20/28 ,  H04H20/34 ,  H04H20/95 ,  H04H60/15 ,  H04H60/17 ,  H04H60/23 ,  H04H60/25 ,  H04N5/602 ,  H04N7/04 ,  H04N7/06 ,  H04N7/081 ,  H04N7/088 ,  H04N7/0881 ,  H04N7/0882 ,  H04N7/162

Abstract: A system and method of information dissemination that permits the user to listen to the specific content of information when and where he or she wants to. A radio or television receiver system receives information from an FM subcarrier, a television vertical blanking interval transmission, a television separate audio program transmission or a dedicated channel and stores the transmitted information in a memory. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of information. Typically, the system includes RAM and/or a storage medium such as a digital audio tape, a magneto-optical mini-disk, a magnetic disk or optical disk, sufficient to store information for 10 hours of audio. A decompression device accepts the accessed compressed digital audio information items which may have been encrypted and transforms them into spoken speech. The user interface is either by voice or a single or multi-position switch allowing scanning through and selection from the menu items. The signal for such a device is generated by converting analog audio signals into a digital audio data stream which may be encrypted. The encrypted digital data stream is compressed and inserted on the radio or television carrier via an FM subcarrier, the television vertical interval or the separate audio program channel of a television transmitter. The system is also capable of transmitting alphanumeric data and converting this alphanumeric data to a voice form using a speech synthesizer.

Abstract translation: 一种信息传播的系统和方法，允许用户在他或她想要的时间和地点聆听信息的具体内容。 无线电或电视接收机系统从FM子载波接收信息，电视垂直消隐间隔传输，电视分离音频节目传输或专用信道，并将发送的信息存储在存储器中。 用户界面允许通过控制分层数据库的一组菜单从存储器存储存储的信息，以便访问特定的信息项。 通常，该系统包括足够存储10小时音频信息的RAM和/或诸如数字音频磁带，磁光小型盘，磁盘或光盘的存储介质。 解压缩装置接受可能已被加密的所访问的压缩数字音频信息项，并将其转换为口头语音。 用户界面是通过语音或单或多位置开关，允许从菜单项进行扫描和选择。 通过将模拟音频信号转换成可被加密的数字音频数据流来生成用于这种装置的信号。 加密的数字数据流通过FM子载波，电视垂直间隔或电视发射机的独立音频节目频道被压缩并插入到无线电或电视载波上。 该系统还能够发送字母数字数据并且使用语音合成器将该字母数字数据转换成语音形式。

公开(公告)号：WO1997046018A1

公开(公告)日：1997-12-04

申请号：PCT/US1997009210

申请日：1997-05-29

Applicant: MACROVISION CORPORATION ,  RYAN, John, O.

Inventor： MACROVISION CORPORATION

IPC: H04N07/169

CPC classification number: H04N7/169 ,  H04N19/537 ,  H04N19/85

Abstract: Scrambling and descrambling techniques are described which, unlike many typical scrambling systems, are compatible with all conceivable forms of signal compression systems. The scrambling technique is based on the principle of applying local spatial distortion to the pixels in a video image, and the like, to locally displace the pixels from their normal locations. Most compression systems rely on the condition that good correlation exists in the image and that any small portion, i.e., pixel, in an image is very similar to the portions, or pixels, nearby. Since the present technique provides local spatial distortion which does not de-correlate the image and does not re-arrange the pixels in the image, the pixels near other pixels prior to application of the scrambling technique, have the same positional relationship after scrambling. The complementary descrambling technique restores the locally displaced pixels to their normal locations to restore the video image to its original unscrambled state.

Abstract translation: 描述了加扰和解扰技术，其与许多典型的加扰系统不同，与所有可想到的形式的信号压缩系统兼容。 加扰技术基于将局部空间失真应用于视频图像中的像素等的原理，以从其正常位置局部移位像素。 大多数压缩系统依赖于图像中存在良好的相关性并且图像中的任何小部分，即像素与附近的部分或像素非常相似的条件。 由于本技术提供局部空间失真，其不会使图像不相关，并且不重新排列图像中的像素，所以在应用加扰技术之前，其他像素附近的像素在加扰之后具有相同的位置关系。 互补解扰技术将局部偏移的像素恢复到其正常位置，以将视频图像恢复到其原始的未加扰状态。

公开(公告)号：WO1997037492A1

公开(公告)日：1997-10-09

申请号：PCT/US1997005257

申请日：1997-03-31

Applicant: MACROVISION CORPORATION ,  WONFOR, Peter, J. ,  NELSON, Derek

Inventor： MACROVISION CORPORATION

IPC: H04N05/913

CPC classification number: H04N21/4181 ,  H04N5/913 ,  H04N7/165 ,  H04N7/17354 ,  H04N21/2541 ,  H04N21/4405 ,  H04N21/44204 ,  H04N21/4623 ,  H04N21/4627 ,  H04N21/47202 ,  H04N21/47208 ,  H04N21/4753 ,  H04N21/6582 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91371

Abstract: A method and system of providing copy protection of video analog and digital signals and the like, wherein the signals are transmitted via a digital delivery network, and may comprise, for example, pay-per-view (PPV) program materials protected by copyrights of respective program rights holders. The right holders authorize video service providers (3) to apply copy protection to the program material. The copy protection process is supplied to the rights holders or the service providers (3) by a copy protection process licensor. The video service providers (3) supply suitable copy protection control software via respective control and billing (tracking) centers to generate commands which activate, control and reconfigure the copy protection process being applied to the programs being transmitted. A set-top box (10) is provided to each consumer and contains a copy protection circuit which is adapted to apply selected anticopy waveforms to the video signal corresponding to the program material in response to the commands from the service providers (3). Usage data pertinent to each consumer is returned by the set-top box (10) to the service providers (3), which then report the copy protection usage to the respective rights holders and process licensor.

Abstract translation: 提供视频模拟和数字信号等的复制保护的方法和系统，其中所述信号经由数字传送网络发送，并且可以包括例如受版权保护的按次付费（PPV）节目材料 各自的程序权利人。 权利人授权视频服务提供商（3）对节目素材应用复制保护。 复制保护过程由复制保护程序许可方提供给权利所有者或服务提供商（3）。 视频服务提供商（3）通过相应的控制和计费（跟踪）中心提供合适的复制保护控制软件，以生成激活，控制和重新配置正在发送的程序的复制保护过程的命令。 机顶盒（10）被提供给每个消费者并且包含复制保护电路，其适于响应于来自服务提供商（3）的命令将所选择的反映码波形应用于对应于节目素材的视频信号。 与每个消费者有关的使用数据由机顶盒（10）返回给服务提供商（3），然后服务提供商（3）将复制保护使用情况报告给相应的权利持有者和处理许可人。

公开(公告)号：WO1996003835A3

公开(公告)日：1996-02-08

申请号：PCT/US1995008843

申请日：1995-07-12

Applicant: MACROVISION CORPORATION

Inventor： MACROVISION CORPORATION

IPC: H04N05/913

公开(公告)号：WO1994022266A2

公开(公告)日：1994-09-29

申请号：PCT/US1994002351

申请日：1994-03-04

Applicant: MACROVISION CORPORATION

Inventor： MACROVISION CORPORATION ,  RYAN, John, O.

IPC: H04N05/91

CPC classification number: G11B20/00086 ,  G06F2211/007 ,  H04N5/913 ,  H04N2005/91314

Abstract: A hybrid digital/analog video recorder prevents both analog and digital copying. The recorder (including a digital tape deck) inputs and outputs both analog and digital video signals. At the analog input, a detector detects conventional copy protection in the analog input video, and in response disables recording thereof. At the digital input, a first detector detects anti-copy bits present in the input material and in response prevents recording. A second bit detector detects serial copy prevention scheme bits, and in response adds an anti-copy bit to the input digital stream, preventing later copying of such material. When another bit detector detects anti-copy bits present in the playback digital data stream prior to conversion to analog, an analog copy protection signal modifies the output analog signal, inhibiting copying of the output signal. In another version, a specially adapted video recorder or playback device copy protects video source material which for technical reasons is not copy protectable. A copy protect "flag" is provided in a predetermined location in the video signal to be protected. The video recorder or playback device, upon detection of the flag at playback, modifies the output standard (NTSC) video signal with a conventional copy protection process.

Abstract translation: 混合数字/模拟录像机可防止模拟和数字复制。 录音机（包括数字磁带录音机）输入和输出模拟和数字视频信号。 在模拟输入端，检测器检测模拟输入视频中的传统复制保护，并且响应禁止其记录。 在数字输入端，第一检测器检测存在于输入材料中的反拷贝位，并且响应防止记录。 第二位检测器检测串行复制防止方案位，并且作为响应将反复制位添加到输入数字流，防止稍后复制这种材料。 当另一个位检测器在转换为模拟之前检测回放数字数据流中存在的反复制位时，模拟复制保护信号修改输出模拟信号，禁止复制输出信号。 在另一个版本中，特别适配的录像机或回放设备副本保护视频源材料，由于技术原因不可复制保护。 在要保护的视频信号中的预定位置提供复制保护“标志”。 视频记录器或回放装置在回放时检测到标志时，用传统的复制保护处理来修改输出标准（NTSC）视频信号。

公开(公告)号：WO1993009638A1

公开(公告)日：1993-05-13

申请号：PCT/US1992009319

申请日：1992-11-06

Applicant: MACROVISION CORPORATION

Inventor： MACROVISION CORPORATION ,  GRIESSHABER, K., Heinz

IPC: H04N07/167

CPC classification number: H04N7/1696

Abstract: A method and apparatus for generating a ramp at cutpoints in a cut and rotate video line scrambling system. The undesirable shortening of the active portion of the video line which typically occurs in cut and rotate scrambling to overcome the problem of abrupt transitions at the cutpoints is eliminated by providing a synthesized ramp between the video amplitude level at the cutpoint and the blanking level at each of the cutpoints. This synthesized ramp is calculated by digital logic (VD14) in conjunction with a delay line (VD46) for inserting the ramp at its proper temporal position in the video signal. The ramp approximates a sine2 function and is formed of three consecutive pixels, each pixel having an associated calculated video amplitude.

公开(公告)号：WO1998004084A1

公开(公告)日：1998-01-29

申请号：PCT/US1997012698

申请日：1997-07-16

Applicant: MACROVISION CORPORATION ,  RYAN, John, O.

Inventor： MACROVISION CORPORATION

IPC: H04N05/913

CPC classification number: H04N5/913 ,  H04N2005/91314

Abstract: A method and apparatus for adaptively controlling the presence of copy protection signals in a video signal depends upon the scene content of the video signal during an upper portion of a display of the video signal. Thus, in the upper portion of the scenes, wherein picture information would be noticeably altered by a hooking process the copy protection process is deactivated or effectively reduced to eliminate or reduce the hooking or tearing effects. The adaptive control of the copy protection improves the playability performance of copy protected video signals on a very small minority of television receivers which display a small hooking or tearing characteristic in the upper portion of the display of the copy protected video signal.

Abstract translation: 用于自适应地控制视频信号中的复制保护信号的存在的方法和装置取决于在视频信号的显示的上部期间视频信号的场景内容。 因此，在通过挂钩处理显着改变图像信息的上部部分中，复制保护处理被去激活或有效地减少以消除或减少挂钩或撕裂效果。 复制保护的自适应控制提高了复制保护的视频信号在非常小的电视接收机上的播放性能，其在复制保护的视频信号的显示器的上部显示出小的挂钩或撕裂特性。

公开(公告)号：WO1997046012A1

公开(公告)日：1997-12-04

申请号：PCT/US1997009211

申请日：1997-05-29

Applicant: MACROVISION CORPORATION ,  RYAN, John, O.

Inventor： MACROVISION CORPORATION

IPC: H04N05/913

CPC classification number: G06T3/0093 ,  G06T1/0057 ,  G06T2201/0051 ,  G06T2201/0081 ,  H04N5/913

Abstract: Fingerprinting and fingerprint detection techniques are described which, unlike typical fingerprint systems used to conceal video signals, are compatible with all conceivable forms of signal compression systems while still allowing viewing of the video signal. The fingerprint technique is based on the principle of applying very slight local spatial distortion to the pixels in a video image, and the like, by means of selected warp patterns. Thus the technique provides means for conveying, within the video signal, selected information in the form of the fingerprint which is detectable electronically but which is not noticeable to a critical viewer who is watching the video signal. That is, the resultant fingerprinted video signal will appear to be identical to the undistorted video signal. The fingerprint detection technique provides for the recovery of the conveyed information which may comprise an instruction to prevent the fingerprinted video image from being copied, messages which allow identifying the source and date of an unauthorized copy of the video image, etc.

Abstract translation: 描述指纹和指纹检测技术，其与用于隐藏视频信号的典型指纹系统不同，与所有可想到的形式的信号压缩系统兼容，同时仍允许观看视频信号。 指纹技术基于通过选择的经线图案对视频图像等中的像素应用非常轻微的局部空间失真的原理。 因此，该技术提供用于在视频信号内传送以电子检测的指纹形式的所选择的信息，但对正在观看视频信号的关键观看者不明显的装置。 也就是说，所得到的指纹视频信号将看起来与未失真的视频信号相同。 指纹检测技术提供了可以包括防止指纹视频图像被复制的指令的恢复所传送的信息，允许识别视频图像的未经授权的拷贝的源和日期的消息等。

公开(公告)号：WO1997042755A1

公开(公告)日：1997-11-13

申请号：PCT/US1997007790

申请日：1997-05-07

Applicant: MACROVISION CORPORATION ,  RYAN, John, O.

Inventor： MACROVISION CORPORATION

IPC: H04N05/167

CPC classification number: H04N5/913 ,  H04N2005/91314

Abstract: A video signal is modified so that a television/receiver still produces a normal picture from the modified signal, whereas videotape recording of this signal produces generally unacceptable pictures. Videotape recorders have an automatic gain control circuit (Fig. 2) which measures the sync pulse level in a video signal and develops a gain control correction signal for keeping the video applied to an FM modulator in the videotape recording system at a fixed predetermined level. A portion of the back porch intervals following the trailing edges of a substantial number of sync pulses are significantly raised and lowered to improve the playability of the original signal without reducing the effectiveness of the copy protection of the copied signal. This is achieved most simply by adding pulses to selected lines of the video signal during the back porch interval, which pulses significantly raise or lower the voltage amplitude during the blanking interval so to provide a signal where the average value is approximately equal to the blanking interval. The sync level and the sync duration on the selected lines are also reduced to enhance the effectiveness of the process.

Abstract translation: 视频信号被修改为使得电视/接收机仍然从修改的信号产生正常图像，而该信号的录像带记录产生通常不可接受的图像。 录像带录像机具有测量视频信号中的同步脉冲电平的自动增益控制电路（图2），并产生一个增益控制校正信号，用于将视频应用于录像带录像系统中的FM调制器以固定的预定电平。 在相当数量的同步脉冲的后沿之后的后沿间隔的一部分被显着升高和降低，以提高原始信号的可播放性，而不会降低复制信号的复制保护的有效性。 这最简单地通过在后沿间隔期间向视频信号的选定行添加脉冲来实现，该脉冲在消隐间隔期间显着地升高或降低电压幅度，从而提供平均值近似等于消隐间隔的信号 。 所选行上的同步级别和同步持续时间也被减少，以提高过程的有效性。