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1. 发明授权

US06836549B1 Method and apparatus for synthesizing and reducing the effects of video copy protection signals 有权
标题翻译：用于合成和减少视频复制保护信号影响的方法和装置
公开(公告)号：US06836549B1
公开(公告)日：2004-12-28
申请号：US09388296
申请日：1999-09-01
申请人： Ronald Quan , Gerow D. Brill
发明人： Ronald Quan , Gerow D. Brill
IPC分类号： H04N7167
CPC分类号： H04N5/913 , H04N2005/91314
摘要： A method and apparatus for defeating copy protection signals in a video signal, and also for providing copy protection signals for a video signal, is disclosed. The defeat technique generally utilizes a particular pulse position shifting, modulation, etc., of AGC, normal sync and/or pseudo sync pulses to increase the separation between the pulses. Various embodiments are disclosed including selective shifting of the relative positions of either the sync/pseudo sync or AGC pulses, trimming portions of the sync/pseudo sync and/or the AGC pulses and narrowing of either the sync/pseudo sync and/or the AGC pulses, all to provide the selective position separation between the sync/pseudo sync and AGC pulses. The copy protection technique includes various embodiments for dynamically varying the sync/pseudo sync and AGC pulse separation by applying a modulation of the above position shifting, trimming and/or narrowing techniques over selected time periods to cycle from the copy protection condition to the copy protection defeat condition, back to the copy protection condition.
摘要翻译：公开了一种用于击败视频信号中的复制保护信号并且还提供用于视频信号的复制保护信号的方法和装置。失败技术通常利用AGC，正常同步和/或伪同步脉冲的特定脉冲位置移位，调制等来增加脉冲之间的间隔。公开了各种实施例，包括选择性地移位同步/伪同步或AGC脉冲的相对位置，修整同步/伪同步和/或AGC脉冲的部分，以及同步/伪同步和/或AGC的变窄脉冲，以提供同步/伪同步和AGC脉冲之间的选择性位置分离。复制保护技术包括各种实施例，用于通过在所选择的时间周期内应用上述位置移位，修整和/或缩小技术的调制来动态地改变同步/伪同步和AGC脉冲间隔，以便从复制保护条件到复制保护失败状况，回到复制保护条件。

2. 发明授权

US06744892B2 Method and apparatus for geographically limiting service in a conditional access system 失效
标题翻译：用于在条件访问系统中地理上限制服务的方法和装置
公开(公告)号：US06744892B2
公开(公告)日：2004-06-01
申请号：US10377416
申请日：2003-03-03
申请人： Glendon L. Akins, III , Howard G. Pinder , Anthony J. Wasilewski
发明人： Glendon L. Akins, III , Howard G. Pinder , Anthony J. Wasilewski
IPC分类号： H04N7167
CPC分类号： H04L63/04 , H04J2203/008 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/0823 , H04L63/12 , H04L63/123 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N7/17354 , H04N21/2265 , H04N21/23476 , H04N21/26606 , H04N21/4405 , H04N21/4524 , H04N21/63345
摘要： A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting the instances for display to system subscribers. The service instances are encrypted using public and/or private keys provided by service providers or central authorization agents. Keys used by the set tops for selective decryption may also be public or private in nature, and such keys may be reassigned at different times to provide a cable television system in which piracy concerns are minimized.
摘要翻译：有线电视系统提供条件访问服务。有线电视系统包括一个头端，从其中广播服务“实例”或程序，以及多个机顶单元，用于接收实例，并选择性地解密实例以供系统用户显示。服务实例使用由服务提供商或中央授权代理提供的公共和/或私钥进行加密。用于选择性解密的设置顶部使用的密钥也可以是公共的或私有的，并且可以在不同的时间重新分配这些密钥，以提供最小化盗版问题的有线电视系统。

3. 发明授权

US06697489B1 Method and apparatus for securing control words 有权
标题翻译：用于保护控制字的方法和装置
公开(公告)号：US06697489B1
公开(公告)日：2004-02-24
申请号：US09497393
申请日：2000-02-03
申请人： Brant L. Candelore
发明人： Brant L. Candelore
IPC分类号： H04N7167
CPC分类号： H04N7/167 , H04N7/163 , H04N7/1675 , H04N21/2347 , H04N21/2543 , H04N21/4181 , H04N21/4367 , H04N21/4405 , H04N21/47211 , H04N21/63345
摘要： In accordance with one embodiment, a method for securing control words is provided. The method includes receiving scrambled digital content in a descrambler integrated circuit. The method further includes receiving an encrypted control word in the descrambler integrated circuit, decrypting the encrypted control word using a key stored in a register circuit of the descrambler integrated circuit, and descrambling the scrambled digital content in the descrambler integrated circuit using the decrypted control word.
摘要翻译：根据一个实施例，提供一种用于确保控制字的方法。该方法包括在解扰器集成电路中接收扰频数字内容。该方法还包括在解扰器集成电路中接收加密的控制字，使用存储在解扰器集成电路的寄存器电路中的密钥解密加密的控制字，并且使用解密的控制字对解扰器集成电路中的加扰的数字内容进行解扰。

4. 发明授权

US06671376B1 Video scramble/descramble apparatus 失效
标题翻译：视频加扰/解扰装置
公开(公告)号：US06671376B1
公开(公告)日：2003-12-30
申请号：US09372145
申请日：1999-08-11
申请人： Shinichiro Koto , Tadaaki Masuda
发明人： Shinichiro Koto , Tadaaki Masuda
IPC分类号： H04N7167
CPC分类号： H04N21/44055 , G06T9/004 , H04N7/1675 , H04N21/2347 , H04N21/4405 , H04N21/8358
摘要： A video scramble apparatus has a scrambler for scrambling an input video signal, and a video encoder for performing interframe predictive coding of the video signal after scrambling, and the scrambler selects a frame, which is not used as a reference frame for interframe prediction in the video encoder, from the input video signal, and scrambles the frame by pixel replacing in units of slices within a predetermined vertical range or pixel replacing in units of n consecutive macroblocks within a predetermined horizontal range.
摘要翻译：视频加扰装置具有用于对输入视频信号进行加扰的加扰器和用于在加扰之后执行视频信号的帧间预测编码的视频编码器，并且加扰器选择不用作帧间预测的参考帧的帧视频编码器，并且以规定的水平范围内的n个连续宏块为单位的预定的垂直范围内的像素单位进行像素替换。

5. 发明授权

US06560340B1 Method and apparatus for geographically limiting service in a conditional access system 有权
标题翻译：用于在条件访问系统中地理上限制服务的方法和装置
公开(公告)号：US06560340B1
公开(公告)日：2003-05-06
申请号：US09493409
申请日：2000-01-28
申请人： Glendon L. Akins, III , Howard G. Pinder , Anthony J. Wasilewski
发明人： Glendon L. Akins, III , Howard G. Pinder , Anthony J. Wasilewski
IPC分类号： H04N7167
CPC分类号： H04L63/04 , H04J2203/008 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/0823 , H04L63/12 , H04L63/123 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N7/17354 , H04N21/2265 , H04N21/23476 , H04N21/26606 , H04N21/4405 , H04N21/4524 , H04N21/63345
摘要： A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting the instances for display to system subscribers. The service instances are encrypted using public and/or private keys provided by service providers or central authorization agents. Keys used by the set tops for selective decryption may also be public or private in nature, and such keys may be reassigned at different times to provide a cable television system in which piracy concerns are minimized.
摘要翻译：有线电视系统提供条件访问服务。有线电视系统包括一个头端，从其中广播服务“实例”或程序，以及多个机顶单元，用于接收实例，并选择性地解密实例以供系统用户显示。服务实例使用由服务提供商或中央授权代理提供的公共和/或私钥进行加密。用于选择性解密的设置顶部使用的密钥也可以是公共的或私有的，并且可以在不同的时间重新分配这些密钥，以提供最小化盗版问题的有线电视系统。

6. 发明授权

US06556679B1 Copy-guard system and information recording medium used in the same system 失效
标题翻译：复制保护系统和信息记录介质在同一系统中使用
公开(公告)号：US06556679B1
公开(公告)日：2003-04-29
申请号：US09195914
申请日：1998-11-19
申请人： Takehisa Kato , Taku Katoh , Kenjiro Endoh , Hisashi Yamada , Naoki Endoh
发明人： Takehisa Kato , Taku Katoh , Kenjiro Endoh , Hisashi Yamada , Naoki Endoh
IPC分类号： H04N7167
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00166 , G11B20/18 , H04N5/913 , H04N5/945 , H04N2005/91328 , H04N2005/91364
摘要： In an embodiment, a copy-guard system is provided that includes a decoding section for decoding digital data, which is encoded and error-correction-coded, from an information recording medium in which key information encoded for the digital data is recorded, an encoded digital data acquisition section for acquiring digital data encoded by error-correcting the digital data decoded by the decoding section, a detection section for detecting an error position and an error symbol value of the encoded digital data, identification information detection section for detecting an identification information representing whether the information recording medium is original or copied and which is replaced with a part of the digital data encoded and error-correction-coded, based on the error position and the error symbol value detected by the detection section, a determination section for determining whether a copy of the information recording medium is protected, and a copy protection section.
摘要翻译：在一个实施例中，提供了一种复制保护系统，其包括：解码部分，用于从其中记录用于数字数据编码的密钥信息的信息记录介质对由数字数据进行编码和纠错编码的数字数据进行解码，数字数据获取部分，用于获取通过对由解码部分解码的数字数据进行纠错编码的数字数据，检测部分，用于检测编码数字数据的错误位置和误差符号值;识别信息检测部分，用于检测识别信息表示信息记录介质是原始还是复制的，并且基于由检测部分检测的错误位置和错误符号值，被编码和纠错编码的数字数据的一部分替代，确定部分，用于确定信息记录介质的副本是否被保护，以及复制保护部分。

7. 再颁专利

USRE38007E1 Controlled-access broadcast signal receiving system 有权
标题翻译：受控广播信号接收系统
公开(公告)号：USRE38007E1
公开(公告)日：2003-02-25
申请号：US09641611
申请日：2000-08-17
申请人： Junichi Tsukamoto , Koichi Goto , Shinichi Fukushima
发明人： Junichi Tsukamoto , Koichi Goto , Shinichi Fukushima
IPC分类号： H04N7167
CPC分类号： H04N9/8042 , G11B20/00086 , G11B20/0021 , G11B20/00224 , G11B20/00246 , G11B20/00478 , G11B20/00746 , H04N5/76 , H04N5/913 , H04N7/163 , H04N7/1675 , H04N9/8205 , H04N21/2543 , H04N21/4334 , H04N21/4405 , H04N21/4408 , H04N21/47202 , H04N21/8355 , H04N2005/91321 , H04N2005/91328 , H04N2005/91364
摘要： An apparatus and method for transferring from a broadcaster to a receiver a limited reproduction right in data. A signal indicating the limited reproduction right is transmitted by the broadcaster and stored by the receiver with the data. The receiver reproduces and processes the data as a function of this signal.
摘要翻译：一种用于从广播者转移到接收机的数据的有限再现权利的装置和方法。指示有限的再现权限的信号由广播者发送并由接收机用数据存储。接收机根据该信号再现和处理数据。

8. 发明授权

US06519341B1 Method and apparatus for outputting a high definition image 有权
标题翻译：用于输出高分辨率图像的方法和装置
公开(公告)号：US06519341B1
公开(公告)日：2003-02-11
申请号：US09335713
申请日：1999-06-18
申请人： Masahiko Enari
发明人： Masahiko Enari
IPC分类号： H04N7167
CPC分类号： H04N21/234327 , H04N7/1675 , H04N7/24 , H04N19/30 , H04N19/61 , H04N19/63 , H04N21/23476 , H04N21/2662
摘要： An image processing apparatus separates input image data into low resolution image data and one or more auxiliary image data for interpolating the low resolution image data, and decrypts at least one of the separated auxiliary image data. The image processing apparatus also separates input image data into low resolution image data and at least one auxiliary image data for interpolating the low resolution image data and decodes the image data with at least one of the auxiliary image data being encrypted, and decrypts the encrypted auxiliary image data and synthesizes the low resolution image data with the auxiliary image data.
摘要翻译：图像处理装置将输入图像数据分离为低分辨率图像数据和用于内插低分辨率图像数据的一个或多个辅助图像数据，并且对分离的辅助图像数据中的至少一个进行解密。图像处理装置还将输入图像数据分离为低分辨率图像数据和用于内插低分辨率图像数据的至少一个辅助图像数据，并且利用加密的辅助图像数据中的至少一个对图像数据进行解码，并且对加密的辅助图像进行解密图像数据，并利用辅助图像数据合成低分辨率图像数据。

9. 发明授权

US06516064B1 Signal recording apparatus, signal record medium and signal reproducing apparatus 失效
标题翻译：信号记录装置，信号记录介质和信号再现装置
公开(公告)号：US06516064B1
公开(公告)日：2003-02-04
申请号：US08677543
申请日：1996-07-10
申请人： Yoshitomo Osawa , Yoichiro Sako , Akira Kurihara , Isao Kawashima
发明人： Yoshitomo Osawa , Yoichiro Sako , Akira Kurihara , Isao Kawashima
IPC分类号： H04N7167
CPC分类号： G11B20/0021 , G06F2211/007 , G11B20/00086 , G11B20/00137 , G11B20/00188 , G11B20/00246 , G11B20/0026 , G11B20/00282 , G11B20/00318 , G11B20/00347 , G11B20/00507 , G11B20/00586 , G11B20/00876 , G11B27/105 , G11B27/329 , G11B2220/235
摘要： A signal reproducing apparatus in which unauthorized decoding or copying is rendered difficult. The apparatus is configured for reproducing ciphered data from a disc-shaped record medium 101 on which there are recorded data ciphered by at least one encryption operation and the key storage site information specifying the arraying site for at least one key information item used for deciphering the ciphered data. The apparatus includes a reproducing head device 12 for reading out the ciphered data and the key storage site information from the record medium 101, a TOC decoder 219, a CPU 224 and a digital signal processing circuit 220 for decoding the ciphered data using the key information stored on the site designated based on the key storage site information.
摘要翻译：一种难以进行未经授权的解码或复制的信号再现装置。该装置被配置用于从盘形记录介质101再现加密数据，其中记录有至少一个加密操作加密的数据，以及密钥存储站点信息指定用于解密的至少一个密钥信息项的排列位置加密数据。该装置包括：再现头装置12，用于从记录介质101读出加密数据和密钥存储位置信息，TOC解码器219，CPU 224和数字信号处理电路220，用于使用密钥信息解码加密数据存储在基于密钥存储站点信息指定的站点上。

10. 发明授权

US06463152B1 Digital broadcast receiving and reproducing apparatus 失效
标题翻译：数字广播接收和再现装置
公开(公告)号：US06463152B1
公开(公告)日：2002-10-08
申请号：US09257740
申请日：1999-02-25
申请人： Masayuki Takahashi
发明人： Masayuki Takahashi
IPC分类号： H04N7167
CPC分类号： H04N21/44204 , H04N5/913 , H04N7/162 , H04N21/4334 , H04N21/4405 , H04N21/4627 , H04N2005/91328 , H04N2005/91364
摘要： A digital broadcast receiving and playing apparatus for receiving digital program data of pay broadcast, generating an apparatus individual key and a program key different in every program or every program division of a divided program in the receiving and playing apparatus, recording after scrambling the program data and program key by the apparatus individual key, controlling the number of times of display of program data received or played from memory device, thereby capable of prohibiting reproduction or display of program data more than the permitted number of times.
摘要翻译：一种数字广播接收和播放装置，用于接收付费广播的数字节目数据，生成在接收和播放装置中的分割节目的每个节目或每个节目划分中不同的装置专用密钥和节目密钥，在对节目数据进行加扰之后进行记录和程序键，控制从存储装置接收或播放的节目数据的显示次数，从而能够禁止节目数据的再现或显示超过允许次数。

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