公开(公告)号：US20070211899A1

公开(公告)日：2007-09-13

申请号：US11800896

申请日：2007-05-07

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

发明人： Peter Wonfor ,  Alistair Knox ,  Jeremy Corcoran ,  John 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. 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。 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：US20070211898A1

公开(公告)日：2007-09-13

申请号：US11800905

申请日：2007-05-07

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

发明人： Peter Wonfor ,  Alistair Knox ,  Jeremy Corcoran ,  John 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. 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. In another version, a negative-going pulse is added to the back porch region of the horizontal blanking interval. 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。 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。 在另一个版本中，负向脉冲被添加到水平消隐间隔的后沿区域。 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：US20080025696A1

公开(公告)日：2008-01-31

申请号：US11870057

申请日：2007-10-10

申请人： Peter Wonfor ,  Alistair Knox ,  Jeremy Corcoran ,  John Ryan ,  Ronald QUAN

发明人： Peter Wonfor ,  Alistair Knox ,  Jeremy Corcoran ,  John 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. 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。 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：US20060045266A1

公开(公告)日：2006-03-02

申请号：US11206093

申请日：2005-08-16

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

发明人： Peter Wonfor ,  Alistair Knox ,  Jeremy Corcoran ,  John 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 a illegal copy. The enhancement in one version include 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. In another version, selected horizontal sync pulses are narrowed, causing irregular vertical retraces. In another version, post-pseudo sync pulses that have a minimum level above the minimum level of sync pulses are added to enhance anti-copy effectiveness. The post pseudo-sync pulses may be amplitude modulated.

摘要翻译： 增强视频防篡改过程，导致异常低幅度的视频信号被记录在非法副本上。 一个版本中的增强包括电视接收机或录像带录像机看起来是同步信号的负走波形，从而导致早期的水平或垂直回扫。 在另一个版本中，所选择的水平同步脉冲变窄，导致不规则的垂直回扫。 在另一版本中，添加具有高于同步脉冲的最小电平的最小电平的后伪同步脉冲，以增强抗拷贝的有效性。 后期伪同步脉冲可以是幅度调制的。

公开(公告)号：US20070206794A1

公开(公告)日：2007-09-06

申请号：US11801099

申请日：2007-05-07

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

发明人： Peter Wonfor ,  Alistair Knox ,  Jeremy Corcoran ,  John 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。