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公开(公告)号：US20050025458A1
公开(公告)日：2005-02-03
申请号：US10928242
申请日：2004-08-30
CPC分类号： H04N5/913 , H04L9/0869 , H04L2209/605 , H04N9/7921 , H04N9/8042 , H04N2005/91364
摘要： A digital signal recording apparatus is disclosed, which is capable of protecting the copyright of the analog input information encoded into a first digital signal in a recording medium. A second digital signal encrypted based on the key information and the input analog signal encrypted based on the key information are converted into a second digital signal and encrypted, and the resulting signal is selectively recorded in a recording medium. The digital signal recording apparatus further comprises a circuit for encrypting the digital signal converted from the input analog signal with a key obtained by a predetermined calculation of the key information according to a scheme similar to the second digital signal protection scheme through a digital interface, and a signal recording circuit for recording the key information and the encrypted digital signal in a recording medium.
摘要翻译： 公开了一种数字信号记录装置，其能够保护编码到记录介质中的第一数字信号中的模拟输入信息的版权。 基于密钥信息加密的第二数字信号和基于密钥信息加密的输入模拟信号被转换成第二数字信号并被加密，并将所得到的信号选择性地记录在记录介质中。 数字信号记录装置还包括一个电路，用于通过数字接口根据类似于第二数字信号保护方案的方案，利用通过密钥信息的预定计算获得的密钥来加密从输入的模拟信号转换的数字信号;以及 用于将密钥信息和加密的数字信号记录在记录介质中的信号记录电路。
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公开(公告)号：US07689100B2
公开(公告)日：2010-03-30
申请号：US10928242
申请日：2004-08-30
CPC分类号： H04N5/913 , H04L9/0869 , H04L2209/605 , H04N9/7921 , H04N9/8042 , H04N2005/91364
摘要： A digital signal recording apparatus is disclosed, which is capable of protecting the copyright of the analog input information encoded into a first digital signal in a recording medium. A second digital signal encrypted based on the key information and the input analog signal encrypted based on the key information are converted into a second digital signal and encrypted, and the resulting signal is selectively recorded in a recording medium. The digital signal recording apparatus further comprises a circuit for encrypting the digital signal converted from the input analog signal with a key obtained by a predetermined calculation of the key information according to a scheme similar to the second digital signal protection scheme through a digital interface, and a signal recording circuit for recording the key information and the encrypted digital signal in a recording medium.
摘要翻译： 公开了一种数字信号记录装置，其能够保护编码到记录介质中的第一数字信号中的模拟输入信息的版权。 基于密钥信息加密的第二数字信号和基于密钥信息加密的输入模拟信号被转换成第二数字信号并被加密，并将所得到的信号选择性地记录在记录介质中。 数字信号记录装置还包括一个电路，用于通过数字接口根据类似于第二数字信号保护方案的方案，利用通过密钥信息的预定计算获得的密钥来加密从输入的模拟信号转换的数字信号;以及 用于将密钥信息和加密的数字信号记录在记录介质中的信号记录电路。
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公开(公告)号：US06804453B1
公开(公告)日：2004-10-12
申请号：US09571656
申请日：2000-05-15
IPC分类号： H04N591
CPC分类号： H04N5/913 , H04L9/0869 , H04L2209/605 , H04N9/7921 , H04N9/8042 , H04N2005/91364
摘要： A digital signal recording apparatus is disclosed, which is capable of protecting the copyright of the analog input information encoded into a first digital signal in a recording medium. A second digital signal encrypted based on the key information and the input analog signal encrypted based on the key information are converted into a second digital signal and encrypted, and the resulting signal is selectively recorded in a recording medium. The digital signal recording apparatus further comprises a circuit for encrypting the digital signal converted from the input analog signal with a key obtained by a predetermined calculation of the key information according to a scheme similar to the second digital signal protection scheme through a digital interface, and a signal recording circuit for recording the key information and the encrypted digital signal in a recording medium.
摘要翻译： 公开了一种数字信号记录装置，其能够保护编码到记录介质中的第一数字信号中的模拟输入信息的版权。 基于密钥信息加密的第二数字信号和基于密钥信息加密的输入模拟信号被转换成第二数字信号并被加密，并将所得到的信号选择性地记录在记录介质中。 数字信号记录装置还包括一个电路，用于通过数字接口根据类似于第二数字信号保护方案的方案，利用通过密钥信息的预定计算获得的密钥来加密从输入的模拟信号转换的数字信号;以及 用于将密钥信息和加密的数字信号记录在记录介质中的信号记录电路。
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4.发明授权PCM signal recording method and apparatus capable of adding index code to PCM signal recorded at different transmission rates 失效PCM信号记录方法和装置能够将索引码添加到以不同传输速率记录的PCM信号
公开(公告)号：US5388009A
公开(公告)日：1995-02-07
申请号：US842547
申请日：1992-02-27
申请人： Yutaka Nagai , Toshifumi Takeuchi , Takao Arai , Hiroo Okamoto , Takaharu Noguchi , Shigeyuki Itoh
发明人： Yutaka Nagai , Toshifumi Takeuchi , Takao Arai , Hiroo Okamoto , Takaharu Noguchi , Shigeyuki Itoh
CPC分类号： G11B27/3027 , G11B20/10527 , G11B20/1208 , G11B2020/1087 , G11B2220/90
摘要： A recording method is provided for a video tape recording apparatus having modes for recording PCM audio signals in a plurality of transmission rates. Index codes for a video signal, which enable a search reproduction and so on, are recorded on a video tape in a constant transmission rate irrespective of the transmission rate of a PCM audio signal to be recorded. Further, an amble pattern at the same frequency as the transmission rate of the PCM audio signal is recorded immediately behind the PCM signal recording area. A reproducing apparatus may be provided only with an index detecting circuit corresponding to the constant transmission rate.
摘要翻译： 提供一种用于具有用于以多个传输速率记录PCM音频信号的模式的录像带记录装置的记录方法。 能够进行搜索再现等的视频信号的索引码以恒定的传输速率被记录在录像带上，而不管要记录的PCM音频信号的传输速率。 此外，与PCM音频信号的传输速率相同的频率的接字模式被记录在PCM信号记录区之后。 再现装置可以仅提供与恒定传输速率对应的索引检测电路。
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公开(公告)号：US20050058286A1
公开(公告)日：2005-03-17
申请号：US10959081
申请日：2004-10-07
CPC分类号： H04N5/913 , H04N5/85 , H04N9/8042 , H04N2005/91335 , H04N2005/91364
摘要： Information or contents cannot be reproduced even from a regular storage medium which is encrypted in accordance with a predetermined encryption system, due to erroneous detection of watermarks. Detection of the watermarks and restriction over reproduction depending thereon is conducted only in a case where the medium is not encrypted. In case of detecting that the data is not encrypted in accordance with a predetermined encryption system by an encryption detection circuit and when the watermarks are detected by a watermark detection circuit, reproduction of the data is stopped by a reproduction restricting circuit. In a case that it is detected to be encrypted in the predetermined encryption system by the encryption detection circuit, the reproduction restricting circuit will not stop the reproduction thereof.
摘要翻译： 由于水印的错误检测，信息或内容甚至不能由根据预定加密系统加密的常规存储介质再现。 水印的检测和依赖于其的再现的限制仅在介质未加密的情况下进行。 在检测到数据未被加密检测电路根据预定的加密系统加密的情况下，并且当由水印检测电路检测到水印时，由再现限制电路停止数据的再现。 在通过加密检测电路检测到在预定加密系统中被加密的情况下，再现限制电路将不会停止其再现。
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公开(公告)号：US07336786B2
公开(公告)日：2008-02-26
申请号：US10959081
申请日：2004-10-07
IPC分类号： H04N7/167
CPC分类号： H04N5/913 , H04N5/85 , H04N9/8042 , H04N2005/91335 , H04N2005/91364
摘要： Information or contents cannot be reproduced even from a regular storage medium which is encrypted in accordance with a predetermined encryption system, due to erroneous detection of watermarks. Detection of the watermarks and restriction over reproduction depending thereon is conducted only in a case where the medium is not encrypted. In case of detecting that the data is not encrypted in accordance with a predetermined encryption system by an encryption detection circuit and when the watermarks are detected by a watermark detection circuit, reproduction of the data is stopped by a reproduction restricting circuit. In a case that it is detected to be encrypted in the predetermined encryption system by the encryption detection circuit, the reproduction restricting circuit will not stop the reproduction thereof.
摘要翻译： 由于水印的错误检测，信息或内容甚至不能由根据预定加密系统加密的常规存储介质再现。 水印的检测和依赖于其的再现的限制仅在介质未加密的情况下进行。 在检测到数据未被加密检测电路根据预定加密系统加密的情况下，并且当水印检测电路检测到水印时，由再现限制电路停止数据的再现。 在通过加密检测电路检测到在预定加密系统中被加密的情况下，再现限制电路将不会停止其再现。
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公开(公告)号：US06882728B1
公开(公告)日：2005-04-19
申请号：US09392564
申请日：1999-09-09
CPC分类号： H04N5/913 , H04N5/85 , H04N9/8042 , H04N2005/91335 , H04N2005/91364
摘要： Information or contents cannot be reproduced even from a regular storage medium which is encrypted in accordance with a predetermined encryption system, due to erroneous detection of watermarks.Detection of the watermarks and restriction over reproduction depending thereon is conducted only in a case where the medium is not encrypted. In case of detecting that the data is not encrypted in accordance with a predetermined encryption system by an encryption detection circuit (10) and when the watermarks are detected by a watermark detection circuit (20), reproduction of the data is stopped by a reproduction restricting circuit (30). In a case that it is detected to be encrypted in the predetermined encryption system by the encryption detection circuit (10), the reproduction restricting circuit (30) will not stop the reproduction thereof.
摘要翻译： 由于水印的错误检测，信息或内容甚至不能由根据预定加密系统加密的常规存储介质再现。 水印的检测和依赖于其的再现的限制仅在介质未加密的情况下进行。 在检测到数据未被加密检测电路（10）根据预定的加密系统进行加密的情况下，并且当水印检测电路（20）检测到水印时，通过再现限制来停止数据的再现 电路（30）。 在通过加密检测电路（10）检测到在预定加密系统中被加密的情况下，再现限制电路（30）将不停止其再现。
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公开(公告)号：US08311219B2
公开(公告)日：2012-11-13
申请号：US13307110
申请日：2011-11-30
IPC分类号： H04L9/16
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： An authentication method for use in sending/receiving data between a coded data output apparatus for outputting coded data having a water mark, and a recording apparatus for recording data onto a recording medium, the method including: deciding a type of the recording medium used by the recording apparatus; based on a result of the deciding, selecting, from a plurality of authentication methods, an authentication method corresponding to the type of the recording medium, and conducting authentication between the coded data output apparatus and the recording apparatus, using the authentication method; sending/receiving data between the coded data output apparatus and the recording apparatus after conducting the authentication; and in a case where the coded data has the water mark, detecting the water mark by the coded data output apparatus, wherein the data exchanged between the coded data output apparatus and the recording apparatus is scrambled by a scrambling method corresponding to the type the recording medium.
摘要翻译： 一种用于在用于输出具有水印的编码数据的编码数据输出装置和用于将数据记录到记录介质上的记录装置之间发送/接收数据的认证方法，所述方法包括：确定使用的记录介质的类型， 记录装置; 基于从多种认证方法中选择与记录介质的种类相对应的认证方法，使用认证方法进行编码数据输出装置与记录装置之间的认证的结果; 在进行认证之后，在编码数据输出装置与记录装置之间发送/接收数据; 并且在编码数据具有水印的情况下，通过编码数据输出装置检测水印，其中在编码数据输出装置和记录装置之间交换的数据通过与记录类型相对应的加扰方法进行加扰 中。
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公开(公告)号：US20110103206A1
公开(公告)日：2011-05-05
申请号：US12839639
申请日：2010-07-20
IPC分类号： G11B19/00
CPC分类号： H01S5/06804 , G11B7/126 , H01S5/0427
摘要： In an optical disk apparatus, by obtaining the temperature in the vicinity of a laser in the apparatus, the power source voltage of the laser driver is controlled such that power consumed by the headroom of the laser driver is reduced to the maximum extent without deteriorating the current drive characteristic of the headroom when the temperature becomes higher. The laser driving current of the laser driver is monitored to control the power source of the laser driver such that the power consumed by the headroom is possibly reduced while maintaining the current drive characteristic of the headroom for the monitored current.
摘要翻译： 在光盘装置中，通过获得装置中的激光附近的温度，控制激光驱动器的电源电压，使得激光驱动器的净空消耗的功率最大程度地降低，而不会使 当温度变高时，净空的电流驱动特性。 对激光驱动器的激光驱动电流进行监控，以控制激光驱动器的电源，从而在保持被监视电流的余量的当前驱动特性的同时可以减小余量消耗的功率。
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公开(公告)号：US07779256B2
公开(公告)日：2010-08-17
申请号：US11968883
申请日：2008-01-03
IPC分类号： H04L9/16
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a scrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译： 一种用于多个设备的数据再现方法，用于通过彼此认证多个设备来发送和接收数据，所述数据再现方法包括：从多个解扰方法中选择与所述数据类型相对应的加扰方法 通过与选择的解扰方法相对应的认证方法执行认证，其中从多种认证方法中选择认证方法，并再现所述数据。
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