公开(公告)号：US20120159534A1

公开(公告)日：2012-06-21

申请号：US13163520

申请日：2011-06-17

申请人： Ronald Quan ,  John F. Cloutman

发明人： Ronald Quan ,  John F. Cloutman

IPC分类号： H04N21/25

CPC分类号： H04N7/169 ,  H04N7/1713 ,  H04N21/42669 ,  H04N21/4334 ,  H04N21/435 ,  H04N21/4627 ,  H04N21/4821 ,  H04N21/835 ,  H04N21/84

摘要： Data for a programming guide or other type of media guidance application of the type associated with video, such as television Electronic Programming Guides (EPG) or Interactive Programming Guides (IPG), is transported via a digital delivery network such as the Internet to a video receiving or storage device such as a personal video recorder (PVR). The receiving device extracts one or more signals from the media guidance application data for a purpose such as programming of control signals. The receiving device thereby reads or interprets control signals derived from the programming guide data provided via the digital delivery network so as to control subsequent recording (or other storage) of the video programs or other video content assets associated with the media guidance application data.

摘要翻译： 与视频相关类型的编程指南或其他类型的媒体引导应用的数据，例如电视电子编程指南（EPG）或交互式编程指南（IPG））经由诸如因特网之类的数字传送网络被传输到视频 接收或存储设备，例如个人录像机（PVR）。 接收装置从媒体引导应用数据中提取一个或多个信号，用于诸如编程控制信号的目的。 因此，接收装置读取或解释从经由数字传送网络提供的节目指南数据导出的控制信号，以便控制与媒体引导应用数据相关联的视频节目或其他视频内容资产的后续记录（或其他存储）。

公开(公告)号：US20040052370A1

公开(公告)日：2004-03-18

申请号：US10639146

申请日：2003-08-11

发明人： Ron D. Katznelson

IPC分类号： H04N007/167

CPC分类号： H04L5/06 ,  H04N7/08 ,  H04N7/162 ,  H04N7/1675 ,  H04N7/169 ,  H04N7/1713

摘要： A multichannel television access control system is disclosed wherein processing of the broadband signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting selective descrambling of an arbitrary subset of channels in a channel group. The system provides for a closed loop injection signal phasor control so as to maintain substantially constant relationship between the television signals and the injected signals. The combined signals are supplied to subscribers enabling the use of their cable ready equipment.

摘要翻译： 公开了一种多通道电视接入控制系统，其中宽带信号的处理是通过多个信道上的门控相干RF注入进行的，从而对通道组中的任意信道子集进行选择性的解扰。 该系统提供闭环注入信号相量控制，以便在电视信号和注入的信号之间保持基本恒定的关系。 将组合的信号提供给订户，使得能够使用其有线就绪设备。

公开(公告)号：US06292567B1

公开(公告)日：2001-09-18

申请号：US09140400

申请日：1998-08-26

申请人： Dale W. Marland

发明人： Dale W. Marland

IPC分类号： H04N7167

CPC分类号： H04N7/1713 ,  H04N5/44 ,  H04N21/42623

摘要： A television transmission security system, including scrambling a television signal by suppressing at least one of the horizontal sync pulse and vertical blanking interval of the television signal; transmitting the scrambled television signal; generating, and separately transmitting along with the scrambled television signal, a pilot carrier that includes timing information corresponding to the horizontal sync pulse and/or vertical blanking interval; and descrambling the scrambled television signal including receiving the pilot carrier and periodically suppressing, in accordance with the timing information included in the pilot carrier, video information of the television signal to an extent whereby at least one of the horizontal sync pulse and vertical blanking interval becomes detectable by a television receiver, thereby initiating organized receipt and display of the television signal. In addition to the sync suppression scrambling device and method, a sync restoration descrambling device, and the method it performs, are disclosed.

摘要翻译： 一种电视传输安全系统，包括通过抑制电视信号的水平同步脉冲和垂直消隐间隔中的至少一个来扰乱电视信号; 发送加扰的电视信号; 生成和分别与加扰的电视信号一起发送导频载波，其包括对应于水平同步脉冲和/或垂直消隐间隔的定时信息; 并对加扰的电视信号进行解扰，包括接收导频载波，并且根据包括在导频载波中的定时信息周期性地抑制电视信号的视频信息，使得水平同步脉冲和垂直消隐间隔中的至少一个变为 可由电视接收机检测，从而启动电视信号的有组织的接收和显示。 除了同步抑制加扰装置和方法之外，还公开了一种同步恢复解扰装置及其执行的方法。

公开(公告)号：US06173109B2

公开(公告)日：2001-01-09

申请号：US09414912

申请日：1999-10-08

申请人： Ronald Quan

发明人： Ronald Quan

IPC分类号： H04N576

CPC分类号： H04N7/1713 ,  H04N5/913 ,  H04N7/08 ,  H04N7/087 ,  H04N7/088 ,  H04N7/1693 ,  H04N2005/91314 ,  H04N2005/91371

摘要： In a known copy protection process for preventing recording of video signals, pseudo sync and AGC pulses are present on predetermined lines within the blanking intervals of the video signal so that any subsequent video tape recording of the video signal shows a picture of very low entertainment quality. This copy protection process is defeated first by determining the location of the video lines containing the copy protection using the color burst signal or chroma in the horizontal blanking interval to determine on-line detection. Then some or all of the lines including copy protection signals are modified so as to render the overall video signal recordable. The modification is accomplished in a number of ways, including gain shifting portions of the video signal, level shifting portions of the video signal, bandwidth limiting certain portions of the video signal or replacing certain portions of the video signal with other video elements.

摘要翻译： 在用于防止视频信号的记录的已知复制保护过程中，伪同步和AGC脉冲存在于视频信号的消​​隐间隔内的预定行上，使得视频信号的任何后续录像带记录显示出非常低的娱乐质量的图像 。 首先通过使用水平消隐间隔中的色同步信号或色度来确定包含复制保护的视频行的位置来确定在线检测，以此来防止该复制保护过程。 然后修改包括复制保护信号的一些或全部行，以使整个视频信号可记录。 该修改以多种方式实现，包括视频信号的增益移位部分，视频信号的电平转换部分，限制视频信号的某些部分的带宽或用其它视频元素替换视频信号的某些部分。

公开(公告)号：US6148320A

公开(公告)日：2000-11-14

申请号：US80621

申请日：1998-05-18

申请人： Ron D. Katznelson

发明人： Ron D. Katznelson

IPC分类号： H03C1/60 ,  H04J1/00 ,  H04J1/06 ,  H04L5/06 ,  H04N7/12 ,  H04N7/16 ,  H04N7/167 ,  H04N7/169 ,  H04N7/171

CPC分类号： H04L5/06 ,  H04N7/08 ,  H04N7/162 ,  H04N7/1675 ,  H04N7/169 ,  H04N7/1713

摘要： A multichannel television access control system is disclosed wherein processing of the broadband signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting selective descrambling of an arbitrary subset of channels in a channel group. The system provides for a closed loop injection signal phasor control so as to maintain substantially constant relationship between the television signals and the injected signals. The combined signals are supplied to subscribers enabling the use of their cable ready equipment.

摘要翻译： 公开了一种多通道电视接入控制系统，其中宽带信号的处理是通过多个信道上的门控相干RF注入进行的，从而对通道组中的任意信道子集进行选择性的解扰。 该系统提供闭环注入信号相量控制，以便在电视信号和注入的信号之间保持基本恒定的关系。 将组合的信号提供给订户，使得能够使用其有线就绪设备。

公开(公告)号：US5953417A

公开(公告)日：1999-09-14

申请号：US137357

申请日：1998-08-20

申请人： Ronald Quan

发明人： Ronald Quan

IPC分类号： H04N5/91 ,  G11B20/10 ,  G11B27/031 ,  H04N5/782 ,  H04N5/913 ,  H04N7/08 ,  H04N7/087 ,  H04N7/088 ,  H04N7/169 ,  H04N7/171 ,  H04N9/79 ,  H04N7/167

CPC分类号： H04N7/1713 ,  H04N5/913 ,  H04N7/08 ,  H04N7/087 ,  H04N7/088 ,  H04N7/1693 ,  H04N2005/91314 ,  H04N2005/91371

摘要： Video signals in today's environment exist in both the analog domain and the digital domain. In many instances it may be desirable to delete or reduce the effectiveness of a video signal containing analog copy protection signals while the signals are in the digital domain. The invention uses digital techniques for defeating the effects of the analog copy protected signal while the signal is in the digital domain. The types of copy protection signals includes pseudo sync pulses and AGC pulses. Additionally digital techniques may be used for reducing or eliminating the affects of a chroma copy protection process. A digital video copy protection eliminator allows removal of substantially all pseudo sync pulses and/or AGC pulses in the digital domain. The location of pseudo syncs and/or AGC pulses are determined, while the signal is in the digital domain. These known pixel locations of all or some of the pseudo syncs and/or AGC pulses are used to digitally modify the signal so as to effectively remove the pseudo sync pulses and/or AGC pulses. Digital methods can also be applied to effectively eliminate or correct the chroma (burst phase modulation) protection process and or enhanced video copy protection signals in the digital domain.

摘要翻译： 当今环境中的视频信号都存在于模拟域和数字域中。 在许多情况下，当信号处于数字域时，可能需要删除或降低包含模拟复制保护信号的视频信号的有效性。 本发明使用数字技术来消除模拟复制保护信号在信号处于数字域中时的影响。 复制保护信号的类型包括伪同步脉冲和AGC脉冲。 另外，数字技术可以用于减少或消除色度复制保护过程的影响。 数字视频拷贝保护消除器允许在数字域中去除基本上所有的伪同步脉冲和/或AGC脉冲。 当信号处于数字域时，确定伪同步和/或AGC脉冲的位置。 全部或部分伪同步和/或AGC脉冲的这些已知像素位置用于对信号进行数字修改，以便有效地去除伪同步脉冲和/或AGC脉冲。 还可以应用数字方法来有效地消除或纠正数字域中的色度（脉冲相位调制）保护过程和或增强的视频拷贝保护信号。

公开(公告)号：US5754650A

公开(公告)日：1998-05-19

申请号：US433135

申请日：1995-05-03

申请人： Ron D. Katznelson

发明人： Ron D. Katznelson

IPC分类号： H03C1/60 ,  H04J1/00 ,  H04J1/06 ,  H04L5/06 ,  H04N7/12 ,  H04N7/16 ,  H04N7/167 ,  H04N7/169 ,  H04N7/171

CPC分类号： H04L5/06 ,  H04N7/08 ,  H04N7/162 ,  H04N7/1675 ,  H04N7/169 ,  H04N7/1713

摘要： A multichannel television access control system is disclosed wherein processing of the broadband signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting selective descrambling of an arbitrary subset of channels in a channel group. The system provides for a closed loop injection signal phasor control so as to maintain substantially constant relationship between the television signals and the injected signals. The combined signals are supplied to subscribers enabling the use of their cable ready equipment.

摘要翻译： 公开了一种多通道电视接入控制系统，其中宽带信号的处理是通过多个信道上的门控相干RF注入进行的，从而对通道组中的任意信道子集进行选择性的解扰。 该系统提供闭环注入信号相量控制，以便在电视信号和注入的信号之间保持基本恒定的关系。 组合的信号被提供给订户，使得能够使用他们的有线就绪设备。

公开(公告)号：US5287409A

公开(公告)日：1994-02-15

申请号：US015900

申请日：1993-02-10

申请人： Richard Westerfer ,  Henry S. Landgraf

发明人： Richard Westerfer ,  Henry S. Landgraf

IPC分类号： H04N7/171 ,  H04N7/167

CPC分类号： H04N7/1713

摘要： In order to defeat pirate descramblers that detect the occurrence of a vertical blanking interval from a gap in timing data provided on the sound carrier of a scrambled television signal, diversionary pulse information is inserted into the sound carrier during the vertical blanking interval. A pirate descrambler that looks for a gap in data transmitted on the sound carrier will then detect a "false" second gap, and incorrectly phase lock its horizontal oscillator to random video instead of to horizontal timing information that is recoverable during the vertical blanking interval.

摘要翻译： 为了防止在加扰电视信号的声音载体上提供的定时数据中的间隙中检测到垂直消隐间隔的发生的盗版解码器，在垂直消隐间隔期间将转移脉冲信息插入到声音载体中。 寻找在载体上传输的数据中的间隙的盗版解扰器将检测到“假”第二间隙，并将其水平振荡器相位锁定到随机视频，而不是在垂直消隐间隔期间可恢复的水平定时信息。

公开(公告)号：US5177787A

公开(公告)日：1993-01-05

申请号：US771851

申请日：1991-10-07

申请人： William T. Murphy ,  James Farmer ,  Lamar West, Jr.

发明人： William T. Murphy ,  James Farmer ,  Lamar West, Jr.

IPC分类号： H04N7/171

CPC分类号： H04N7/1713 ,  H04N7/1716

摘要： The invention is directed to an improved scrambler capable of self-calibrating output signals. In one embodiment, the scrambler provides an encoded signal along separate signal pulses. A portion of one signal is made to correspond to a portion of another signal to thereby self-calibrate the signals. Also, portions of the incoming video signal are forced to correspond with internally generated voltage level signals.

摘要翻译： 本发明涉及能够自校准输出信号的改进的加扰器。 在一个实施例中，加扰器沿着分离的信号脉冲提供经编码的信号。 使一个信号的一部分对应于另一个信号的一部分，从而自校准信号。 此外，输入视频信号的一部分被强制对应于内部产生的电压电平信号。

公开(公告)号：US4815129A

公开(公告)日：1989-03-21

申请号：US688503

申请日：1985-01-02

申请人： John Griffin ,  David Grubb ,  Joseph Glaab

发明人： John Griffin ,  David Grubb ,  Joseph Glaab

IPC分类号： H04K1/00 ,  H04N7/171 ,  H04N7/167

CPC分类号： H04N7/1713 ,  H04N7/1716

摘要： An encrypted video distribution system includes a signal originating station which distributes television signals in a format unrecoverable by a standard television receiver. In particular, the normally occurring vertical and horizontal synchronizing pulses are deleted and, optionally also, video information is selectively inverted about a voltage reference potential intermediate the black and white levels. To permit synchronization restoration, a keying pulse is transmitted once each video field, and a synchronizing digital code burst transmitted once each frame--all at a fixed, predetermined intra-frame timed relationship. At each authorized subscriber location, the keying pulse and digital code burst are employed to lock a receiver frame clock which derivatively gives rise to all requisite reception-permitting synchronizing pulses. The transmitted information also contains information sufficient to restore the inverted video program content.

摘要翻译： 加密的视频分发系统包括以标准电视接收机不可恢复的格式分配电视信号的信号发起站。 特别地，删除通常出现的垂直和水平同步脉冲，并且还可选地还可以选择性地反转关于黑白电平之间的电压参考电位的视频信息。 为了允许同步恢复，每个视频场一次发送一个键控脉冲，并且以一帧固定的预定的帧内定时关系全部发送一次同步数字码片。 在每个授权用户位置，采用键控脉冲和数字码脉冲来锁定接收机帧时钟，该时钟导致所有必要的接收允许同步脉冲。 发送的信息还包含足以恢复反转的视频节目内容的信息。