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61. 发明授权

US06714650B1 Recording of scrambled digital data 有权
标题翻译：记录加密的数字数据
公开(公告)号：US06714650B1
公开(公告)日：2004-03-30
申请号：US09622138
申请日：2000-08-11
申请人： Michel Maillard , Christian Benardeau
发明人： Michel Maillard , Christian Benardeau
IPC分类号： H04N7167
CPC分类号： H04N21/63345 , H04N5/775 , H04N5/913 , H04N7/163 , H04N7/1675 , H04N21/2347 , H04N21/4181 , H04N21/4185 , H04N21/433 , H04N21/4405 , H04N21/4408 , H04N21/8113 , H04N2005/91364
摘要： A system for transmitting and recording digital data is included. Further, a system for transmitting transmit scrambled audio data that is to be recorded on a mini disc reader is included. A system for transmission and recording of digital data includes transmission means adapted to prepare and transmit scrambled digital data together with at least one encrypted control word and a digital recording device adapted to receive and record the scrambled digital data and encrypted control word on a digital support. The digital recording device further includes an access control means adapted to decrypt the control word and thereafter descramble the digital data during playback.
摘要翻译：包括用于发送和记录数字数据的系统。此外，包括用于发送要记录在迷你盘读取器上的发送加扰音频数据的系统。用于数字数据的传输和记录的系统包括适于准备和发送加密的数字数据以及至少一个加密的控制字和数字记录装置的传输装置，其适于在数字支持上接收和记录加扰的数字数据和加密的控制字。该数字记录装置还包括一个访问控制装置，适用于对该控制字进行解密，然后在播放过程中解扰数字数据。

62. 发明授权

US06711261B1 Enhancing concealment in the presence of fine mistuning for various TV scrambling techniques 有权
标题翻译：在各种电视加扰技术存在精细错误的情况下增强隐藏
公开(公告)号：US06711261B1
公开(公告)日：2004-03-23
申请号：US09356798
申请日：1999-07-20
申请人： Ronald Quan
发明人： Ronald Quan
IPC分类号： H04N7167
CPC分类号： H04N7/1693 , H04N2005/91357
摘要： An improved method and apparatus for maintaining concealment for a scrambled signal when frequency pre-emphasis is used to defeat the scrambling. The pre-emphasis may be synthesized with high pass or peaking circuitry. More commonly however the pre-emphasis is available in television sets with a fine tuning control. By adjusting the fine tuning control to cause purposely mistuning off center, a peaking effect is generated which is used to counter the scrambled signal. The application discloses one embodiment which uses de-emphasis to counter the peaking effect. In another embodiment, signals added in the vicinity of the horizontal blanking interval causes the peaking effect to enhance these added signals over stable edges of the video signal. Since these added signals are position modulated for example, the television's sync circuits and horizontal oscillator circuits will cause scan circuits to generate position modulation. Thus adding a specific type of signal causes the peaking circuit to enlarge the added signals more than the other parts of the video signal for synchronization.
摘要翻译：一种改进的方法和装置，用于当使用频率预加重来抵抗加扰时，保持加扰信号的隐藏。预加重可以用高通或峰值电路合成。然而更普遍的是，预加重可用于具有微调控制的电视机中。通过调整微调控制以引起故意中断偏移，产生用于对抗加扰信号的峰值效应。本申请公开了一种使用去加重来抵消峰值效应的实施例。在另一个实施例中，在水平消隐间隔附近添加的信号导致峰值效应在视频信号的稳定边缘上增强这些相加信号。由于这些附加信号是位置调制的，所以电视机的同步电路和水平振荡电路将使扫描电路产生位置调制。因此，增加特定类型的信号使得峰值电路比视频信号的其他部分更多地放大附加信号以进行同步。

63. 发明授权

US06694023B1 Method and apparatus for protecting copyright of digital recording medium and copyright protected digital recording medium 失效
标题翻译：用于保护数字记录介质和版权保护的数字记录介质的版权的方法和装置
公开(公告)号：US06694023B1
公开(公告)日：2004-02-17
申请号：US09222317
申请日：1998-12-29
申请人： Byung-Jun Kim
发明人： Byung-Jun Kim
IPC分类号： H04N7167
CPC分类号： H04N21/8355 , G11B20/00086 , G11B20/00181 , G11B20/0021 , G11B20/00268 , G11B20/00449 , G11B20/00492 , G11B20/00579 , G11B20/0092 , H04N7/1675
摘要： A digital recording medium for protecting a copyright includes a data recording region on at least a part of which information encrypted using a cryptosystem is recorded, and a copy disapproval region on which a cypher key for decryption of the encrypted information recorded on the data recording region is recorded. When the digital recording medium is copied illegally, table identification information recorded thereon will be damaged. Thus, the information recorded on a recording medium obtained by illegally copying the digital recording medium cannot be reproduced normally. A playback apparatus for the digital recording medium includes a memory for storing the cryptosystem, a reader for reading data recorded on the digital recording medium, and a decrypter for decrypting the encrypted information recorded on the digital recording medium, based on the cypher key read from the digital recording medium by the reader.
摘要翻译：用于保护版权的数字记录介质包括至少一部分使用密码系统加密的信息被记录的数据记录区域，以及复制拒绝区域，在该区域上用于解密记录在数据记录区域上的加密信息的密码密钥被记录。当数字记录介质被非法复制时，记录在其上的表格识别信息将被损坏。因此，无法正常地再现记录在通过非法复制数字记录介质获得的记录介质上的信息。用于数字记录介质的重放装置包括用于存储密码系统的存储器，用于读取记录在数字记录介质上的数据的读取器，以及用于解密记录在数字记录介质上的加密信息的解密器，数位录音媒体由读者。

64. 发明授权

US06683958B2 Apparatus and method for embedding and extracting information in analog signals using distributed signal features and replica modulation 失效
公开(公告)号：US06683958B2
公开(公告)日：2004-01-27
申请号：US10206826
申请日：2002-07-29
申请人： Rade Petrovic
发明人： Rade Petrovic
IPC分类号： H04N7167
CPC分类号： G06F21/60 , G06T1/0028 , G06T2201/0052 , H04H20/31
摘要： Apparatus and methods are provided for embedding or embedding digital data into an analog host or cover signal. A distributed signal feature of the cover signal in a particular domain (time, frequency or space) is calculated and compared with a set of predefined quantization values corresponding to an information symbol to be encoded. The amount of change required to modify the signal feature to the determined target quantization value is calculated and the cover signal is modified accordingly to so change the feature value over a predefined interval. Information symbols are extracted by the opposite process. In one embodiment, the predefined value is a short term autocorrelation value of the cover signal.

65. 发明授权

US06681015B1 Digital recording/reproducing system 失效
标题翻译：数字录音/再现系统
公开(公告)号：US06681015B1
公开(公告)日：2004-01-20
申请号：US09301202
申请日：1999-04-28
申请人： Toshiaki Hioki , Hisashi Matsuyama
发明人： Toshiaki Hioki , Hisashi Matsuyama
IPC分类号： H04N7167
CPC分类号： H04N21/4181 , G11B20/00086 , G11B20/0021 , G11B20/0071 , H04N5/4401 , H04N5/781 , H04N5/85 , H04N5/913 , H04N7/163 , H04N21/2347 , H04N21/26606 , H04N21/4135 , H04N21/42676 , H04N21/4334 , H04N21/4405 , H04N21/4623 , H04N21/47211 , H04N21/6137 , H04N21/6187 , H04N21/63345 , H04N2005/91364
摘要： A digital recording/reproducing system includes a set top box. The STB receives a digital television broadcast signal and transmits a scrambled data stream from a stream selector via an interface to a digital recording/reproducing apparatus. In the data recording/reproducing apparatus, a scramble key is acquired depending on a billing request for data recording. To AS-MO disc are recorded a contents key converted from a disc unique ID using a descramble key as well as the data stream. In accordance with a user's approval for the billing, an account table is created which is registered in an IC card and transmitted via a MODEM and telephone line.
摘要翻译：数字记录/再现系统包括机顶盒。 STB接收数字电视广播信号，并且经由接口将数据流从流选择器发送到数字记录/再现装置。在数据记录/再现装置中，根据用于数据记录的计费请求，获取加扰密钥。使用解密密钥和数据流，记录从盘唯一ID转换的内容密钥到AS-MO光盘。根据用户对计费的批准，创建一个注册在IC卡中并通过MODEM和电话线传输的帐户表。

66. 发明授权

US06674858B1 Receiving device, recording and reproducing device and receiving/recording-reproducing system for digital broadcast signal 失效
标题翻译：用于数字广播信号的接收装置，记录和再现装置以及接收/记录再现系统
公开(公告)号：US06674858B1
公开(公告)日：2004-01-06
申请号：US09208443
申请日：1998-12-10
申请人： Hiroyuki Kimura , Takao Arai , Toshifumi Takeuchi
发明人： Hiroyuki Kimura , Takao Arai , Toshifumi Takeuchi
IPC分类号： H04N7167
CPC分类号： H04N21/4334 , H04N5/913 , H04N7/1675 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/4627 , H04N21/8355 , H04N21/8358 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A receiving device comprises a signal demodulator circuit for demodulating an encrypted video signal and attribute information including information for decoding an encryption, an attribute information identifying circuit for identifying and outputting the attribute information, and a descramble circuit for unscrambling the video signal obtained from the signal demodulator circuit, based on the output produced from the attribute information identifying circuit. A signal re-scrambled in accordance with a device ID signal is recorded in a recording and reproducing device. Further, the recording of the signal is controlled based on the output obtained from the attribute information identifying circuit.
摘要翻译：接收装置包括用于解调加密视频信号的信号解调器电路和包括用于解码加密的信息的属性信息，用于识别和输出属性信息的属性信息识别电路，以及用于对从信号获得的视频信号进行解扰的解扰电路解调器电路，基于从属性信息识别电路产生的输出。根据设备ID信号重新加扰的信号被记录在记录和再现设备中。此外，基于从属性信息识别电路获得的输出来控制信号的记录。

67. 发明授权

US06651250B1 Digital broadcast receiving system in information processor 有权
标题翻译：信息处理器中的数字广播接收系统
公开(公告)号：US06651250B1
公开(公告)日：2003-11-18
申请号：US09173284
申请日：1998-10-15
申请人： Kazuhito Takai
发明人： Kazuhito Takai
IPC分类号： H04N7167
CPC分类号： H04N7/163 , H04H20/74 , H04H40/18 , H04H60/15 , H04H60/16 , H04H60/23 , H04N5/4401 , H04N21/4113 , H04N21/4181 , H04N21/4305 , H04N21/4348 , H04N21/43632 , H04N21/4385 , H04N21/43853 , H04N21/44004 , H04N21/4623 , H04N21/6143
摘要： A digital satellite broadcast receiving system is proposed in which the necessary packets of an MPEG2-based transport stream can be transferred to the system memory of a computer to facilitate processing of packets by a CPU. The system has means for filtering packets, by packet ID, from an MPEG2-based transport stream, which is output by a digital satellite broadcast tuner, to facilitate section formation from packets of the MPEG2-based transport stream by a CPU of a computer, filtering being performed after the transport stream is descrambled if the broadcast is a subscription broadcast; a buffer memory for storing the filtered data, which has been output by the filter means, until the data can be accessed by a host bus; and DMA control means for transferring, by direct memory access, content of the buffer memory to the system memory of the computer via the host bus.
摘要翻译：提出了一种数字卫星广播接收系统，其中可以将基于MPEG2的传输流的必要分组传送到计算机的系统存储器，以便于CPU处理分组。该系统具有通过数据包ID从基于MPEG2的传输流（由数字卫星广播调谐器输出）来分组的装置，以便于计算机的CPU从基于MPEG2的传输流的分组形成部分，如果广播是订阅广播，则在传输流被解扰之后执行过滤; 缓冲存储器，用于存储由滤波器装置输出的滤波数据，直到数据可被主机总线访问; 以及DMA控制装置，用于通过直接存储器访问将缓冲存储器的内容经由主机总线传送到计算机的系统存储器。

68. 发明授权

US06543050B1 Method and apparatus for enlarging DVB-CI functionality by enabling a direct access to the conditional access module 有权
标题翻译：通过实现对条件访问模块的直接访问来扩大DVB-CI功能的方法和装置
公开(公告)号：US06543050B1
公开(公告)日：2003-04-01
申请号：US09329570
申请日：1999-06-10
申请人： Philippe Letellier , Eric Diehl , Stéphane Morcel
发明人： Philippe Letellier , Eric Diehl , Stéphane Morcel
IPC分类号： H04N7167
CPC分类号： H04N21/43607 , H04N21/4431
摘要： The invention is to be used in the Digital Video Broadcasting—Common Interface environment for accessing the Conditional Access Module (CAM). The host application handles objects of the Conditional Access (CA) through a private Application Program Interface (API). Each CAM may have its own private CA API but the data channel remains identical whatever the CAM is. This new mode coexists with the two already defined modes: low level Man Machine Interface, and high level Man Machine Interface. If a Set top Unit “understands” the private CA Application Program Interface (API), then it may access the features of the plugged CA through its private CA API Protocol. Otherwise, it remains on the standard API. With this extension, an STU can have a Conditional Access User Interface which perfectly fits into the overall User Interface of the STU. Thus b broadcaster can ensure that its look and feel are respected on its STUs. A manufacturer can build an STU especially optimized for a given or a plurality of Cas but still able to run other CAs.
摘要翻译：本发明将用于数字视频广播 - 公共接口环境中，用于访问条件访问模块（CAM）。主机应用程序通过专用应用程序接口（API）处理条件访问（CA）的对象。每个CAM可以具有其自己的专用CA API，但是无论CAM是什么，数据信道保持相同。这种新模式与两种已经定义的模式共存：低级人机界面和高级人机界面。如果机顶单元“理解”专用CA应用程序接口（API），则可以通过其专用CA API协议访问已插入CA的功能。否则，它仍然在标准API上。通过这种扩展，STU可以具有完全适合STU的整体用户界面的条件访问用户界面。因此，广播公司可以确保其外观和感觉在其STU上得到尊重。制造商可以构建特定针对给定CA或多个CA进行优化的STU，但仍能够运行其他CA。

69. 发明授权

US06466670B1 System for preventing playback of unauthorized digital video recordings 有权
标题翻译：防止未经授权的数字视频录像播放的系统
公开(公告)号：US06466670B1
公开(公告)日：2002-10-15
申请号：US09481739
申请日：2000-01-11
申请人： Yossef Tsuria , Yishai Sered
发明人： Yossef Tsuria , Yishai Sered
IPC分类号： H04N7167
CPC分类号： G06F17/30802 , G06K9/00711 , H04N5/913 , H04N7/162 , H04N19/467 , H04N21/4627 , H04N21/8352 , H04N2005/91335 , H04N2005/91342
摘要： This invention discloses an anti-piracy system including video representation signature apparatus for computing a forbidden signature of a forbidden video representation, communication apparatus for communicating the forbidden signature to a playing device, and a playing device adapted to receive and play back a recorded video representation, the playing device including reception apparatus for receiving the forbidden signature communicated by the communication apparatus, recorded video representation signature apparatus for computing a signature of the recorded video representation, and playback control apparatus operative to prevent playback of the recorded video representation if the computed signature of the recorded video representation matches the forbidden signature communicated to the playing device
摘要翻译：本发明公开了一种防盗版系统，包括用于计算禁止的视频表示的禁止签名的视频表示签名装置，用于将禁止签名传送给播放装置的通信装置，以及适于接收和重放记录的视频表示的播放装置播放装置包括用于接收由通信装置传送的禁止签名的接收装置，用于计算所记录的视频表示的签名的记录视频表示签名装置，以及如果所计算的签名，则可操作以防止重放记录的图像表示的重放控制装置记录的视频表示与传送给播放设备的禁止签名相匹配

70. 发明授权

US06459795B1 Method and apparatus for enhancing the scrambling of a TV signal via erroneous clamp signals 有权
标题翻译：用于通过错误的钳位信号增强TV信号加扰的方法和装置
公开(公告)号：US06459795B1
公开(公告)日：2002-10-01
申请号：US09233922
申请日：1999-01-20
申请人： Ronald Quan
发明人： Ronald Quan
IPC分类号： H04N7167
CPC分类号： H04N7/1713 , H04N5/913 , H04N2005/91307
摘要： An improved television scrambling signal is achieved by adding erroneous clamp pulses into a television signal after the signal may have been previously scrambled, for example, by prior art position modulated horizontal sync pulses. Prior art scrambling systems such as those using position modulated sync pulses cause tearing in an unauthorized displayed television picture. The addition of the erroneous clamp pulses of the present invention causes both tearing and darkening of the picture. This darkening can completely shut off the display on some TV sets, thus yielding complete concealment of the television signal. In an alternative embodiment, an erroneous color “rainbow” effect is provided by modifying a portion of a color burst signal, to cause the color subcarrier system in a TV set to unlock. In another embodiment, an improved television vertical scrambling overlay method is achieved by using fewer lines for the insertion of fake vertical sync pulses in a vertical blanking interval and by turning on the fewer fake vertical pulses in a selected specific manner. This improvement provides greater vertical displacement for enhanced picture concealment while providing additional lines for other purposes.
摘要翻译：例如，通过现有技术的位置调制水平同步脉冲，可以在将信号预先加扰之后，将错误的钳位脉冲添加到电视信号中来实现改进的电视加扰信号。现有技术的加扰系统，例如使用位置调制同步脉冲的那些加扰系统，导致未授权显示的电视图像中的撕裂。本发明的错误钳位脉冲的添加导致图像的撕裂和变暗。这种变暗可以完全关闭某些电视机上的显示器，从而完全隐藏电视信号。在替代实施例中，通过修改色同步信号的一部分来提供错误的彩色“彩虹”效果，以使电视机中的彩色副载波系统解锁。在另一个实施例中，通过在垂直消隐间隔中使用较少的线来插入伪垂直同步脉冲并且以选定的特定方式接通较少的假垂直脉冲来实现改进的电视垂直加扰覆盖方法。这种改进提供了更大的垂直位移，用于增强图像隐藏，同时为其他目的提供附加线路。

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