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51. 发明授权

US5058157A Method and apparatus for encrypting and decrypting time domain signals 失效
标题翻译：加密和分解时域信号的方法和装置
公开(公告)号：US5058157A
公开(公告)日：1991-10-15
申请号：US403514
申请日：1989-09-06
申请人： John O. Ryan
发明人： John O. Ryan
IPC分类号： G09C1/00 , H04K1/00 , H04L9/08 , H04N7/169
CPC分类号： H04N7/1693
摘要： A technique for encrypting and decrypting information signals normally arranged as a succession of lines of active information, with each line having a line timing reference, such as color video information signals. The active video portion is time shifted with respect to the horizontal sync portion of the corresponding line using a predetermined slowly varying time shifting function. The time shifting information is conveyed to the decryption site by encoding the instantaneous vlue of the time shifting wave form for the beginning of each field in the vertical blanking portion of that field. To provide a reasonable maximum time shifting range, portions of the trailing edge of the active video in the preceding line and portions of the leading edge of the active video in the current line are discarded. During decryption, the original line timing and color burst signals are discarded and new signals are generated which are time displaced from the actie video portion by the original amount before encryption.

52. 发明授权

US4695901A Method and apparatus for removing pseudo-sync and/or agc pulses from a video signal 失效
标题翻译：从视频信号中去除伪同步和/或agc脉冲的方法和装置
公开(公告)号：US4695901A
公开(公告)日：1987-09-22
申请号：US836019
申请日：1986-03-04
申请人： John O. Ryan
发明人： John O. Ryan
IPC分类号： H04N5/91 , H04N5/913 , H04N5/76
CPC分类号： H04N5/913 , H04N7/169 , H04N7/171 , H04N2005/91314
摘要： Added pseudo-sync pulses and AGC pulses are removed from a video signal to enable acceptable video recording thereof. The added signals previously interfered with acceptable video recording of the video signal because the automatic gain control of videotape recorders sensed false recording levels, while conventional televisions receivers were unaffected by those modifications to the video signal. Removal of the added pulses permits acceptable video recording of the previously modified video signal. A selectively-operable clipping circuit is used to remove selected negative-value components (i.e. pseudo-sync pulses) from the video signal, while added AGC pulses are effectively blanked from the video signal with an electrically-operable switch. Both the blanking and clipping functions are selectively achieved by sensing both the normal sync pulses of the video signal and the added pseudo-sync pulses. Method and apparatus are disclosed for "cleaning up" video signals modified by either the pseudo-sync pulses alone, the AGC pulses alone, or combinations thereof.
摘要翻译：从视频信号中去除了增加的伪同步脉冲和AGC脉冲以使其可接受的视频记录。由于录像机录像机的自动增益控制检测到虚假记录电平，所以附加的信号先前干扰了视频信号的可接受的视频记录，而传统的电视接收机不受视频信号的那些修改的影响。删除添加的脉冲允许对先前修改的视频信号的可接受的视频记录。使用选择性操作的限幅电路来从视频信号中去除所选择的负值分量（即，伪同步脉冲），而通过电可操作的开关可以从视频信号中有效地消除附加的AGC脉冲。通过检测视频信号的正常同步脉冲和相加的伪同步脉冲来选择性地实现消隐和剪切功能。公开了用于“净化”由单独的伪同步脉冲，单独的AGC脉冲或其组合修改的视频信号的方法和装置。

53. 发明授权

US4598235A Method and apparatus for eliminating lag in photoelectric tubes 失效
标题翻译：消除光电管滞后的方法和装置
公开(公告)号：US4598235A
公开(公告)日：1986-07-01
申请号：US593748
申请日：1984-03-27
申请人： John O. Ryan
发明人： John O. Ryan
IPC分类号： H04N5/228 , H04N9/09 , H01J29/56
CPC分类号： H04N5/228
摘要： For each magnitude of charge stored on a section of a target of a photoelectric tube due to the action of incident light thereon, there is a specific value of cathode voltage which ensures the discharge of the section in one pass of the scanning beam. It follows that if the cathode receives a voltage whose instantaneous value is proportional to the magnitude of the charge stored on the corresponding portion of the target, the complete discharge of the target is effected in one pass of the scanning electron beam. Since the output voltage of a camera preamplifier at any instant is directly related to the magnitude of the charge stored on the corresponding portion of the target of the same tube or a different tube viewing the same scene, the preamplifier output voltage herein is selectively applied to the tube cathode, preferably with an appropriate transfer function, whereby lag in the tube is eliminated.
摘要翻译：对于由于其上的入射光的作用而存储在光电管的目标的一部分上的电荷的每个量级，存在确保扫描光束的一次通过中的部分的放电的阴极电压的特定值。因此，如果阴极接收其瞬时值与存储在靶的相应部分上的电荷的大小成比例的电压，则在扫描电子束的一次通过中实现靶的完全放电。由于在任何时刻摄像机前置放大器的输出电压与存储在相同管的目标的相应部分上的电荷的大小直接相关，或者观察相同场景的不同管的目标的电荷的大小，因此这里的前置放大器输出电压被选择性地应用于管阴极，优选具有适当的传递函数，由此消除管中的滞后。

54. 发明授权

US4540919A Method and apparatus for automatically controlling highlight effects 失效
标题翻译：自动控制高光效果的方法和装置
公开(公告)号：US4540919A
公开(公告)日：1985-09-10
申请号：US338194
申请日：1982-01-08
申请人： John O. Ryan
发明人： John O. Ryan
IPC分类号： H04N5/228 , H01J29/52
CPC分类号： H04N5/2286
摘要： During the horizontal retrace scan period of a scanning beam in a television pickup tube, the beam current is increased to the maximum possible value to recharge the target layer, and the cathode voltage is raised by a few volts to prevent readout of normal video. Also, the scanning beam path may be modified to insure that every area of the image is scanned by the retrace scan prior to being scanned by the active picture scan.
摘要翻译：在电视拾取管中的扫描光束的水平回扫扫描周期期间，束电流增加到最大可能值以再现目标层，并且阴极电压升高几伏，以防止正常视频的读出。此外，可以修改扫描光束路径以确保在通过主动图像扫描被扫描之前通过回扫扫描来扫描图像的每个区域。

55. 发明授权

US4333108A Apparatus and method for transmitting a pulse width modulated audio signal on a video signal 失效
标题翻译：用于在视频信号上发送脉宽调制音频信号的装置和方法
公开(公告)号：US4333108A
公开(公告)日：1982-06-01
申请号：US129060
申请日：1980-03-10
申请人： Ronald Quan , John O. Ryan
发明人： Ronald Quan , John O. Ryan
IPC分类号： H04N7/083 , H04J3/00 , H04N7/084 , H04N7/085 , H04N7/00
CPC分类号： H04N7/084
摘要： A system for transmitting an audio signal in pulse width modulated form on a video signal is disclosed. The audio signal is modulated by varying the time occurance of at least one edge of a pulse as a function of the voltage level of said audio signal at a selected time. The pulse is then added to the video signal during each horizontal blanking interval. Upon receipt of the transmitted signal, the video signal is processed to reform said edge varying pulse. An output pulse is then generated for each varying edge of said pulse, whose pulse width is a function of the time of occurance of said edge with respect to a stable reference edge. This output pulse is then used to generate a voltage signal whose level is determined by the pulse width of said output pulse. The successively generated voltage levels comprise the reformed audio signal.
摘要翻译：公开了一种在视频信号上以脉冲宽度调制形式发送音频信号的系统。音频信号通过在所选择的时间改变作为所述音频信号的电压电平的函数的脉冲的至少一个边缘的时间发生来调制。然后在每个水平消隐间隔期间将脉冲加到视频信号中。在接收到所发送的信号时，处理视频信号以改变所述边缘变化脉冲。然后对于所述脉冲的每个变化边缘产生输出脉冲，其脉冲宽度是所述边缘相对于稳定参考边缘出现的时间的函数。然后，该输出脉冲用于产生其电平由所述输出脉冲的脉冲宽度确定的电压信号。连续产生的电压电平包括重整的音频信号。

56. 发明授权

US08014524B2 Scaling independent technique for watermarking images with recorder shut-off 有权
标题翻译：缩放独立的技术，用记录仪切断来对图像进行水印
公开(公告)号：US08014524B2
公开(公告)日：2011-09-06
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： H04N7/167 , H04L9/32 , H04N7/08 , G06T1/00 , G06F12/00 , G06Q30/00 , G06Q10/00
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。

57. 发明授权

US07764790B2 Scaling independent technique for watermarking images 失效
标题翻译：水印图像的缩放独立技术
公开(公告)号：US07764790B2
公开(公告)日：2010-07-27
申请号：US10703681
申请日：2003-11-07
申请人： John O. Ryan
发明人： John O. Ryan
IPC分类号： H04N7/167 , H04L9/32 , H04N7/08 , G06T1/00 , G06F12/00
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.
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。

58. 发明授权

US06701062B1 Generational copy control of a video signal 有权
标题翻译：视频信号的代码复制控制
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。

59. 发明授权

US06542609B1 Method and apparatus for scrambling a high definition television signal 有权
标题翻译：用于扰乱高分辨率电视信号的方法和装置
公开(公告)号：US06542609B1
公开(公告)日：2003-04-01
申请号：US09483594
申请日：2000-01-14
申请人： John O. Ryan , James R. Holzgrafe , Mark A. Hollar
发明人： John O. Ryan , James R. Holzgrafe , Mark A. Hollar
IPC分类号： H04N7167
CPC分类号： H04N7/1696 , H04N5/913 , H04N7/015 , H04N7/08 , H04N7/088 , H04N7/167 , H04N7/1693 , H04N21/835 , H04N2005/91357
摘要： Method and apparatus for scrambling a high definition television signal to discourage unauthorized recording of same. While recording per se is not prevented, the resulting recorded signal is rendered unusable due to an induced “wobble” between the active video and the associated sync pulses. The scrambled television signal is readily viewable on a compliant high definition television set which descrambles the HDTV signal using an encoded indication of the amount of wobble accompanying the HDTV signal. Also provided is a special interface to prevent unauthorized persons from using the indication of the amount of wobble so as to defeat the scrambling. Also provided are method and apparatus for defeating the scrambling method and hence allowing recording of the scrambled video signal.
摘要翻译：用于扰乱高分辨率电视信号以阻止其未经授权记录的方法和装置。虽然不能防止记录本身，但是由于在活动视频和相关联的同步脉冲之间引起的“摆动”，所产生的记录信号变得不可用。加扰的电视信号可以在兼容的高分辨率电视机上容易地观看，该电视机使用伴随HDTV信号的摆动量的编码指示对HDTV信号进行解扰。还提供了防止未经授权的人使用摆动量的指示以防止扰乱的特殊接口。还提供了用于消除加扰方法并因此允许记录加扰视频信号的方法和装置。

60. 发明授权

US06411713B1 Method of adaptive control of the presence of a copy protection signal 有权
标题翻译：自适应控制复制保护信号存在的方法
公开(公告)号：US06411713B1
公开(公告)日：2002-06-25
申请号：US09202395
申请日：1998-12-09
申请人： John O. Ryan
发明人： John O. Ryan
IPC分类号： H04N7167
CPC分类号： H04N21/44 , H04N5/44 , H04N5/913 , H04N21/4408 , H04N21/8355 , H04N2005/91314
摘要： 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.
摘要翻译：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地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。

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