公开(公告)号：US07907727B2

公开(公告)日：2011-03-15

申请号：US11228757

申请日：2005-09-16

申请人： John O. Ryan ,  Ronald Quan

发明人： John O. Ryan ,  Ronald Quan

IPC分类号： H04N7/167

CPC分类号： G11B20/00086 ,  G11B20/00855 ,  H04N5/85 ,  H04N5/913 ,  H04N21/2541 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/4627 ,  H04N21/8355 ,  H04N2005/91328

摘要： A copy protection system and method for allowing copying or distribution of a copy protected signal is disclosed. One embodiment includes an apparatus and method for receiving a media signal in which a copy protection signal is embedded, receiving a control signal, generating a modified media signal by modifying or blanking at least a portion of the copy protection signal, if the control signal is configured to enable modification or blanking of the copy protection signal, and outputting the modified media signal.

摘要翻译： 公开了一种允许复制或分发复制保护信号的复制保护系统和方法。 一个实施例包括用于接收其中嵌入复制保护信号的媒体信号的装置和方法，接收控制信号，通过修改或消隐复制保护信号的至少一部分来产生修改的媒体信号，如果控制信号是 被配置为能够修改或消隐复制保护信号，并输出修改的媒体信号。

公开(公告)号：US20100246882A1

公开(公告)日：2010-09-30

申请号：US12815291

申请日：2010-06-14

申请人： John O. RYAN

发明人： John O. RYAN

IPC分类号： G06K9/00

CPC分类号： G06T1/0064 ,  H04N19/00 ,  H04N21/23892 ,  H04N21/8358

摘要： A robust technique to prevent illicit copying of video information notwithstanding the use of image scaling. A watermark is embedded into the video signal (e.g., DVD's content or other video sources) at different scales (i.e., sizes). The watermark is maintained at each scale for a predetermined time duration that is sufficient to allow the detector circuit in a DVD-recorder, DVHS recorder, DVCR, or any other digital format recorder to detect, extract, and process information contained in the watermark. At the end of the predetermined time duration, the watermark is changed to a different scale preferably on a pseudo-random basis to ensure that each one of all the scales in a predetermined scaling range is achieved a predetermined number of times. Thereby the recorder shuts off a number of times during play of the content, each time the detector circuit senses the watermark.

摘要翻译： 尽管使用图像缩放，仍然可以防止非法复制视频信息。 将水印以不同的尺度（即尺寸）嵌入到视频信号（例如，DVD的内容或其他视频源）中。 水印被保持在每个刻度上一段预定的持续时间，足以允许DVD记录器，DVHS记录器，DVCR或任何其它数字格式记录器中的检测器电路检测，提取和处理包含在水印中的信息。 在预定持续时间结束时，优选地以伪随机的方式将水印改变为不同的比例，以确保预定缩放范围内的所有尺度中的每一个都达到预定次数。 因此，每次检测器电路感测到水印时，记录器在播放内容期间关闭多次。

公开(公告)号：US07784103B2

公开(公告)日：2010-08-24

申请号：US10968487

申请日：2004-10-19

申请人： John O. Ryan ,  Ronald Quan ,  James H. Salter

发明人： John O. Ryan ,  Ronald Quan ,  James H. Salter

IPC分类号： G06F7/04

CPC分类号： G11B20/00086 ,  G11B20/00855

摘要： A copy protection system and method enabling storage of copy protection information separately from protected content is disclosed. One embodiment includes a mechanism for playing a recording medium, the recording medium having stored thereon a digital content file and a copy protection information file, the mechanism producing a digital content signal from the digital content file and a copy protection signal from the copy protection file; a digital to analog converter operatively connected to the mechanism for converting the digital content signal to an analog signal; a copy protection detector connected to the mechanism for detecting a copy protection trigger present in the digital content signal; and a signal modifier connected to the copy protection detector for modifying the analog signal to include the copy protection signal in response to detection of the copy protection trigger.

摘要翻译： 公开了一种能够将复制保护信息与被保护内容分开存储的复制保护系统和方法。 一个实施例包括用于播放记录介质的机构，其中存储有数字内容文件和复制保护信息文件的记录介质，从数字内容文件产生数字内容信号的机制和来自复制保护文件的复制保护信号 ; 一个数模转换器，可操作地连接到用于将数字内容信号转换为模拟信号的机构; 连接到用于检测数字内容信号中存在的复制保护触发的机构的复制保护检测器; 以及连接到复制保护检测器的信号修改器，用于响应于检测到复制保护触发而修改模拟信号以包括复制保护信号。

公开(公告)号：US20100021133A1

公开(公告)日：2010-01-28

申请号：US12574646

申请日：2009-10-06

申请人： Peter J. WONFOR ,  Alistair J. Knox ,  Jeremy J. Corcoran ,  John O. Ryan ,  Ronald Quan

发明人： Peter J. WONFOR ,  Alistair J. Knox ,  Jeremy J. Corcoran ,  John O. Ryan ,  Ronald Quan

IPC分类号： H04N5/91 ,  H04N7/167

CPC分类号： H04N7/171 ,  H04N5/913 ,  H04N2005/91314 ,  H04N2005/91371 ,  H04N2005/91378 ,  H04N2005/91385

摘要： Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. In one version, positive going pulses are added to the video signal. The enhancements in one version introduce into the overscan portion of the television picture, just prior to the horizontal or vertical sync signals but in active video, a negative going waveform that appears to the television receiver or videotape recorder to be a sync signal, thereby causing an early horizontal or vertical retrace. One version provides (in the right overscan portion of the picture), a checker pattern of alternating gray and black areas which causes the TV set on which the illegal copy is played to horizontally retrace earlier than normal in selected lines with a consequential horizontal shift of the picture information on those lines. This substantially degrades picture viewability. In another version a gray pattern at the bottom overscan portion of the picture causes vertical picture instability. In another version selected horizontal sync signals are narrowed, causing irregular vertical retraces. Also provided is apparatus for removing or attenuating these enhancements from the video signal, to allow copying.

摘要翻译： 对视频防篡改过程的增强，导致异常低幅度的视频信号被记录在非法拷贝上。 在一个版本中，正向脉冲被加到视频信号中。 一个版本的增强功能在电视图像的过扫描部分之前，在水平或垂直同步信号之前，但是在活动视频中，将电视接收机或录像带录像机呈现为同步信号的负向波形，从而导致 早期水平或垂直回溯。 一个版本提供（在图片的右侧过扫描部分），交替的灰色和黑色区域的棋盘图案，使得非法拷贝播放的电视机在选定的行中比正常地水平回溯，伴随着相应的水平移位 这些线上的图片信息。 这显着降低了图像的可视性。 在另一个版本中，图片底部过扫描部分的灰色图案导致垂直图像不稳定。 在另一版本中，所选择的水平同步信号变窄，导致不规则的垂直回扫。 还提供了用于从视频信号中去除或衰减这些增强的装置，以允许复制。

公开(公告)号：US07620178B2

公开(公告)日：2009-11-17

申请号：US11801099

申请日：2007-05-07

申请人： Peter J. Wonfor ,  Alistair J. Knox ,  Jeremy J. Corcoran ,  John O. Ryan ,  Ronald Quan

发明人： Peter J. Wonfor ,  Alistair J. Knox ,  Jeremy J. Corcoran ,  John O. Ryan ,  Ronald Quan

IPC分类号： H04N7/167

CPC分类号： H04N7/171 ,  H04N5/913 ,  H04N2005/91314 ,  H04N2005/91371 ,  H04N2005/91378 ,  H04N2005/91385

摘要： Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. In one version, positive going pulses are added to the video signal. The enhancements in one version introduce into the overscan portion of the television picture, just prior to the horizontal or vertical sync signals but in active video, a negative going waveform that appears to the television receiver or videotape recorder to be a sync signal, thereby causing an early horizontal or vertical retrace. One version provides (in the right overscan portion of the picture), a checker pattern of alternating gray and black areas which causes the TV set on which the illegal copy is played to horizontally retrace earlier than normal in selected lines with a consequential horizontal shift of the picture information on those lines. This substantially degrades picture viewability. In another version a gray pattern at the bottom overscan portion of the picture causes vertical picture instability. In another version selected horizontal sync signals are narrowed, causing irregular vertical retraces. Also provided is apparatus for removing or attenuating these enhancements from the video signal, to allow copying.

摘要翻译： 对视频防篡改过程的增强，导致异常低幅度的视频信号被记录在非法拷贝上。 在一个版本中，正向脉冲被加到视频信号中。 一个版本的增强功能在电视图像的过扫描部分之前，在水平或垂直同步信号之前，但是在活动视频中，将电视接收机或录像带录像机呈现为同步信号的负向波形，从而导致 早期水平或垂直回溯。 一个版本提供（在图片的右侧过扫描部分），交替的灰色和黑色区域的棋盘图案，使得非法拷贝播放的电视机在选定的行中比正常地水平回溯，伴随着相应的水平移位 这些线上的图片信息。 这显着降低了图像的可视性。 在另一个版本中，图片底部过扫描部分的灰色图案导致垂直图像不稳定。 在另一版本中，所选择的水平同步信号变窄，导致不规则的垂直回扫。 还提供了用于从视频信号中去除或衰减这些增强的装置，以允许复制。

公开(公告)号：US06590979B1

公开(公告)日：2003-07-08

申请号：US09171856

申请日：1998-10-23

申请人： John O. Ryan

发明人： John O. Ryan

IPC分类号： H04N7169

CPC分类号： H04N21/2347 ,  H04N7/1675

摘要： 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.

摘要翻译： 描述了与许多典型的加扰系统不同的所有可能的形式的信号压缩系统兼容的加扰和解扰技术。 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：US06404889B1

公开(公告)日：2002-06-11

申请号：US08949274

申请日：1997-10-13

申请人： John O. Ryan ,  Kordian J. Kurowski ,  Ronald Quan

发明人： John O. Ryan ,  Kordian J. Kurowski ,  Ronald Quan

IPC分类号： H04N716

CPC分类号： H04N5/913 ,  H04N2005/91314

摘要： A VGA (or other component video signal) output, e.g. from a computer or DVD player, is protected so it is viewable on a VGA monitor. However, if the component video signal is converted to composite video (e.g. television) the resulting television picture is of substantially degraded quality, thereby inhibiting viewing and/or copying. This protects for instance copyrighted material in the VGA format from unauthorized use. The protection involves modifying the horizontal or vertical synchronization signals in the VGA video in such a way that there is no adverse affect on a typical VGA monitor. However, most or all VGA to television converters and/or television sets and VCR's suffer from loss of synchronization, resulting in an unviewable picture. Also, methods and circuits for defeating the copy protection are provided.

摘要翻译： 输出VGA（或其他分量视频信号）。 从电脑或DVD播放机，被保护，所以它可以在VGA监视器上查看。 然而，如果分量视频信号被转换成复合视频（例如电视），则所得到的电视图像质量显着降低，从而阻止观看和/或复制。 这保护了VGA格式的受版权保护的材料，以防止未经授权的使用。 该保护涉及在VGA视频中修改水平或垂直同步信号，使得对典型VGA监视器没有不利影响。 然而，大多数或全部VGA到电视转换器和/或电视机和VCR都遭受同步丢失，导致不可见的画面。 此外，还提供了用于击败复制保护的方法和电路。

公开(公告)号：US06374036B1

公开(公告)日：2002-04-16

申请号：US09164859

申请日：1998-10-01

申请人： John O. Ryan ,  Patrice Capitant ,  Clayton L. Davidson ,  James Holzgrafe ,  Kordian J Kurowski ,  Andrew Mellows ,  Tony Forrest Rodriquez

发明人： John O. Ryan ,  Patrice Capitant ,  Clayton L. Davidson ,  James Holzgrafe ,  Kordian J Kurowski ,  Andrew Mellows ,  Tony Forrest Rodriquez

IPC分类号： H04N591

CPC分类号： G06T1/0071 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0064 ,  G06T2201/0065 ,  H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91335

摘要： Method and apparatus for “copy-once” of a digital video signal uses a watermark in the video signal. The embedded watermark has two versions: one indicates copy-never and a second indicates copy-once, the difference being a single watermark bit. The watermark carries additional bits representing a digitized attribute (image characteristic) of a particular video frame of the video signal, for instance an average value of the amplitude of a video field. The frame whose attribute is carried in the watermark has a field (or frame) marker, which is a special signal located in the overscan portion of the frame. A compliant video recorder verifies the watermark and the copy-once bit, extracts the associated attribute from the watermark, and compares it to the measured attribute of the marked video frame. Only if the extracted attribute value and the measured attribute value match is recording enabled. During the recording process, the frame markers are stripped, preventing second generation copies of the recorded video signal, and the copy-once bit is set to copy-never.

摘要翻译： 数字视频信号“复制一次”的方法和装置在视频信号中使用水印。 嵌入水印有两个版本：一个表示从未复制，另一个表示复制一次，差别是单个水印位。 水印承载表示视频信号的特定视频帧的数字化属性（图像特性）的附加位，例如视频场的幅度的平均值。 属性在水印中携带的帧具有位于帧的过扫描部分中的特殊信号的场（或帧）标记。 兼容视频记录器验证水印和一次复制位，从水印中提取相关联的属性，并将其与标记的视频帧的测量属性进行比较。 只有提取的属性值和测量的属性值匹配才能启用记录。 在记录过程中，帧标记被剥离，防止记录的视频信号的第二代副本，并且一次复制位被设置为从不复制。

公开(公告)号：US5841863A

公开(公告)日：1998-11-24

申请号：US401015

申请日：1995-03-08

申请人： John O. Ryan ,  James R. Holzgrafe

发明人： John O. Ryan ,  James R. Holzgrafe

IPC分类号： H04H20/00 ,  H04K1/00 ,  H04K1/02 ,  H04L9/00 ,  H04N7/169

CPC分类号： H04N7/1696 ,  H04N7/1693

摘要： A video-scrambling system induces a random wobble i.e., time shifting, in the location of active portion of the video frame, without affecting the horizontal sync signal and colorburst in each video line, thus providing both security and concealment. The security is enhanced by filling in the gap between the nominal beginning of active video and the actual beginning of active video with a synthesized video signal which replicates the adjacent active video using a digitally generated filling pattern. Also, a random noise overlay further conceals the location of the gap. Additional concealment is provided by wiggling in time the location of the horizontal sync signal using one or two frequencies and also by randomly altering the location of the vertical sync signal. The NTSC digital encoding in accordance with the invention is simplified by using only two channels, chrominance and luminance, and by a heterodyne circuit for chrominance stability. NTSC encoding is enhanced by providing detail normally lost, by use of the chroma channel. Additionally, a non-standard video signal may be provided with a portion of the colorburst on the front porch of the horizontal blanking, thus allowing use of a relatively simple decoder.

公开(公告)号：US5513260A

公开(公告)日：1996-04-30

申请号：US267635

申请日：1994-06-29

申请人： John O. Ryan

发明人： John O. Ryan

IPC分类号： G11B20/10 ,  G06F1/00 ,  G06F7/72 ,  G09C1/00 ,  G11B20/00 ,  H04L9/14 ,  H04L9/32 ,  H04N5/913 ,  G11B23/28 ,  H04L9/30

CPC分类号： H04N21/8358 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00536 ,  G11B20/00586 ,  G11B20/00695 ,  H04L9/0825 ,  H04L9/3247 ,  H04N5/913 ,  G06F2211/007 ,  G06F7/725 ,  H04L2209/605 ,  H04N2005/91342 ,  H04N2005/91364

摘要： A method and apparatus for copyright protection for various recording media such as compact discs (CDs) uses a combination of symmetrical and asymmetrical data encryption to permit the player to handle either copy-protected or non-copy-protected media, in a manner that is extremely difficult to compromise. Coupled with the combination of encrypting methods, an Authenticating Signature is 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 decrypt the program data. All original CDs therefore play normally. When a copy of a non-protected CD is played, the absence of the Authenticating Signature also causes the player to correctly decrypt the program data. However, when a copy of a protected CD is played, the absence of the Authenticating Signature causes the player to generate false data which prohibits the disk from playing normally.

摘要翻译： 用于诸如光盘（CD）的各种记录介质的版权保护的方法和装置使用对称和非对称数据加密的组合来允许播放器以一种方式来处理复制保护的或非拷贝保护的媒体 极难妥协 加上加密方法的组合，只有在需要进行防拷贝保护时才会在媒体上记录认证签名。 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玩家正确解密节目数据。 所有原始CD因此正常播放。 当播放未受保护的CD的副本时，缺少认证签名也会使玩家正确解密节目数据。 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产生禁止磁盘正常播放的虚假数据。