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公开(公告)号:US06701062B1
公开(公告)日:2004-03-02
申请号:US09327996
申请日:1999-06-08
申请人: Johan Cornelis Talstra , Mark Hollar , Kordian Kurowski , David Collier , William Wrobleski , James Holzgrafe , Antonius Adrianus Cornelis Maria Kalker , Derek Nelson , Patrice Capitant , John O. Ryan
发明人: Johan Cornelis Talstra , Mark Hollar , Kordian Kurowski , David Collier , William Wrobleski , James Holzgrafe , Antonius Adrianus Cornelis Maria Kalker , Derek Nelson , Patrice Capitant , John O. Ryan
IPC分类号: H04N591
CPC分类号: G06T1/0085 , G06T2201/0064 , H04N5/913 , H04N2005/91314 , H04N2005/91335
摘要: Method and apparatus for providing generational copy control of a video signal. A digital video signal contains content information, first supplemental information and second supplemental information. The first supplemental information is represented by a watermark pattern, the second by a control pattern. Copying of the content information is only permitted if a predetermined combination of the first and second supplemental information is present. Pseudo-sync pulses are added to a blanking interval of an analog video signal converted from a digital video signal, the pulses representing the second supplemental information.
摘要翻译: 用于提供视频信号的代数复制控制的方法和装置。 数字视频信号包含内容信息,第一补充信息和第二补充信息。 第一补充信息由水印图案表示,第二补充信息由控制图案表示。 如果存在第一和第二补充信息的预定组合,则仅允许复制内容信息。 将伪同步脉冲添加到从数字视频信号转换的模拟视频信号的消隐间隔,该脉冲表示第二补充信息。
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2.
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。
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