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1. 发明授权

US06223285B1 Method and system for transferring information using an encryption mode indicator 失效
标题翻译：使用加密模式指示器传输信息的方法和系统
公开(公告)号：US06223285B1
公开(公告)日：2001-04-24
申请号：US08957051
申请日：1997-10-24
申请人： Teruyoshi Komuro , Yoshitomo Osawa , Hisato Shima , Tomoyuki Asano
发明人： Teruyoshi Komuro , Yoshitomo Osawa , Hisato Shima , Tomoyuki Asano
IPC分类号： H04L900
CPC分类号： H04L12/40058 , G11B20/00086 , G11B20/0021 , G11B20/00775 , H04L12/40104 , H04L12/40117 , H04N5/913 , H04N7/1675 , H04N21/2347 , H04N21/4367 , H04N21/4405 , H04N21/8355 , H04N2005/91328 , H04N2005/91364
摘要： A method and system for transferring information using an encryption mode indicator (EMI). The present invention provides several secure information communication modes in which data (e.g., representing an audio/visual work) can be transmitted from a source device to a sink device (receiving station) in a number of secure modes. In one secure mode, EMI mode A, the information of the transmission is not allowed to be copied as a whole work; this is the highest level of copy protection. In second secure mode, EMI mode B, the information of the transmission is allowed to be copied once and once only by the sink device. In a third transmission mode, no encryption is used and free copying is available. Depending on which secure mode is selected between mode A and mode B, a different encryption process is used by the source device to encrypt the transmission. Further, depending on which secure mode is selected between mode A and mode B, a different decryption process is used by the sink device to decrypt the transmission. The present invention is particularly useful for transmissions between a source device and a bit stream recorder which does not have the capability to extract certain encryption information from a packet header. By using different encryption processes for each transmission mode, an unauthorized device placed between the source and the sink devices that alters the EMI code will be unable to thereafter render or record the audio/visual work because the decryption process selected will differ from the encryption process used.
摘要翻译：一种使用加密模式指示符（EMI）传送信息的方法和系统。本发明提供了几种安全信息通信模式，其中数据（例如，表示音频/视频工作）可以以多种安全模式从源设备发送到宿设备（接收站）。在一种安全模式下，EMI模式A，传输信息不允许作为整体复制; 这是最高级别的复制保护。在第二安全模式中，EMI模式B，传输的信息被允许被宿设备一次复制一次。在第三种传输模式下，不使用加密，可以免费复制。根据模式A和模式B之间选择的安全模式，源设备使用不同的加密过程来加密传输。此外，根据在模式A和模式B之间选择哪种安全模式，宿设备使用不同的解密过程来解密传输。本发明对于源设备和不具有从分组报头提取某些加密信息的能力的比特流记录器之间的传输特别有用。通过对于每个传输模式使用不同的加密过程，放置在源和宿设备之间的改变EMI代码的未授权设备将不能在之后呈现或记录音频/视频工作，因为所选择的解密过程将不同于加密过程用过的。

2. 发明授权

US08422675B2 Data transmission system 有权
公开(公告)号：US08422675B2
公开(公告)日：2013-04-16
申请号：US13186412
申请日：2011-07-19
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： H04L9/00
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.

3. 发明申请

US20050207573A1 Data transmission system 有权
公开(公告)号：US20050207573A1
公开(公告)日：2005-09-22
申请号：US11112830
申请日：2005-04-22
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： G11B20/00 , H04K1/00 , H04L9/00 , H04L29/06 , H04N5/91 , H04N7/167 , H04N21/41 , H04N21/4363 , H04N21/4367 , H04N21/4408
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.

4. 发明申请

US20050199406A1 Data transmission system 有权
公开(公告)号：US20050199406A1
公开(公告)日：2005-09-15
申请号：US11112268
申请日：2005-04-22
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： G11B20/00 , H04K1/00 , H04L9/00 , H04L29/06 , H04N5/91 , H04N7/167 , H04N21/41 , H04N21/4363 , H04N21/4367 , H04N21/4408
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.

5. 发明授权

US08005214B2 Data transmission system 有权
标题翻译：数据传输系统
公开(公告)号：US08005214B2
公开(公告)日：2011-08-23
申请号：US12554025
申请日：2009-09-04
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： H04L9/00
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.
摘要翻译：密钥由数据发送单元10和数据接收单元20之间的秘密共享的第一信息生成，从发送数据的复制控制信息导出的第二信息和作为数据发送单元与数据发送单元20之间共享的时间变化信息的第三信息数据接收单元，通过使用上述密码密钥从CPU 12对数据进行加密，从数据发送单元10向数据接收单元20发送其中添加了复制控制信息和时间变化信息的数据加密数据。

6. 发明授权

US07412606B2 Copy protection using detailed copy control information 有权
标题翻译：复制保护使用详细的复制控制信息
公开(公告)号：US07412606B2
公开(公告)日：2008-08-12
申请号：US11224790
申请日：2005-09-13
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ichiro Hamada
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ichiro Hamada
IPC分类号： G06F12/14 , H04L9/00 , H04K1/00 , H04N7/167
CPC分类号： H04L12/283 , G11B20/00086 , G11B20/00768 , G11B2220/2529 , H04L12/40104 , H04L12/40117 , H04N5/765 , H04N5/85 , H04N5/913 , H04N9/8205 , H04N2005/91328
摘要： Based on the detailed reproduction control information defining the reproduction control state of data to be transmitted, the CPU 12 of the data transmission apparatus creates a simplified reproduction control information roughly defining the reproduction control state of the data, stores the simplified reproduction control information of the data in the packet header of a data packet carrying the data, stores the detailed reproduction control information in the data, and transmits the simplified reproduction control information and the detailed reproduction control information as well as the data to the data receiving apparatus 20 through the transmission channel 30 from the input-output interface 16. The CPU 22 of the data receiving apparatus 20 analyses the reproduction control state of the data contained in the data packet based on the simplified reproduction information and the detailed reproduction information contained in the data packet, and controls the reproduction of the data by the action of the media access part 26 according to the analysis result.
摘要翻译：基于定义要发送的数据的再现控制状态的详细的再现控制信息，数据传输装置的CPU 12创建大致定义数据的再现控制状态的简化再现控制信息，存储数据的简化再现控制信息携带数据的数据包的包头中的数据，将详细的再现控制信息存储在数据中，并且通过传输将简化的再现控制信息和详细再现控制信息以及数据发送到数据接收装置20 来自输入 - 输出接口16的通道30。数据接收装置20的CPU22基于包含在数据包中的简化再现信息和详细再现信息来分析包含在数据包中的数据的再现控制状态，并且通过动作来控制数据的再现媒体访问部分26根据分析结果。

7. 发明授权

US07296153B2 Data transmission system 有权
公开(公告)号：US07296153B2
公开(公告)日：2007-11-13
申请号：US11112380
申请日：2005-04-22
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： G06F9/00
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.

8. 发明授权

US07085930B2 Data transmission system 有权
标题翻译：数据传输系统
公开(公告)号：US07085930B2
公开(公告)日：2006-08-01
申请号：US11113094
申请日：2005-04-22
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： G06F1/24
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.
摘要翻译：密钥由数据发送单元10和数据接收单元20之间的秘密共享的第一信息生成，从发送数据的复制控制信息导出的第二信息和作为数据发送单元与数据发送单元20之间共享的时间变化信息的第三信息数据接收单元，通过使用上述密码密钥从CPU 12对数据进行加密，从数据发送单元10向数据接收单元20发送其中添加了复制控制信息和时间变化信息的数据加密数据。

9. 发明授权

US07073061B2 Data transmission system 有权
公开(公告)号：US07073061B2
公开(公告)日：2006-07-04
申请号：US11112829
申请日：2005-04-22
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ryuji Ishiguro
IPC分类号： G06F1/24
CPC分类号： H04L9/0838 , G11B20/00086 , H04L63/0428 , H04N7/1675 , H04N21/4135 , H04N21/43632 , H04N21/4367 , H04N21/4408
摘要： A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data receiving unit to cipher data by a CPU 12 by using the above-mentioned cipher key to transmit, from the data transmitting unit 10 to the data receiving unit 20, transmit data in which the duplication control information and the time change information are added to the ciphered data.

10. 发明授权

US06978377B1 Copy protection using detailed copy control information 有权
标题翻译：复制保护使用详细的复制控制信息
公开(公告)号：US06978377B1
公开(公告)日：2005-12-20
申请号：US09719708
申请日：2000-04-17
申请人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ichiro Hamada
发明人： Tomoyuki Asano , Yoshitomo Osawa , Teruyoshi Komuro , Ichiro Hamada
IPC分类号： G06F21/10 , G11B20/00 , H04L12/40 , H04L12/64 , G06F12/14
CPC分类号： H04L12/283 , G11B20/00086 , G11B20/00768 , G11B2220/2529 , H04L12/40104 , H04L12/40117 , H04N5/765 , H04N5/85 , H04N5/913 , H04N9/8205 , H04N2005/91328
摘要： Based on the detailed reproduction control information defining the reproduction control state of data to be transmitted, the CPU 12 of the data transmission apparatus creates a simplified reproduction control information roughly defining the reproduction control state of the data, stores the simplified reproduction control information of the data in the packet header of a data packet carrying the data, stores the detailed reproduction control information in the data, and transmits the simplified reproduction control information and the detailed reproduction control information as well as the data to the data receiving apparatus 20 through the transmission channel 30 from the input-output interface 16. The CPU 22 of the data receiving apparatus 20 analyses the reproduction control state of the data contained in the data packet based on the simplified reproduction information and the detailed reproduction information contained in the data packet, and controls the reproduction of the data by the action of the media access part 26 according to the analysis result.
摘要翻译：基于定义要发送的数据的再现控制状态的详细的再现控制信息，数据传输装置的CPU 12创建大致定义数据的再现控制状态的简化再现控制信息，存储数据的简化再现控制信息携带数据的数据包的包头中的数据，将详细的再现控制信息存储在数据中，并且通过传输将简化的再现控制信息和详细再现控制信息以及数据发送到数据接收装置20 来自输入 - 输出接口16的通道30。数据接收装置20的CPU22基于包含在数据包中的简化再现信息和详细再现信息来分析包含在数据包中的数据的再现控制状态，并且通过动作来控制数据的再现媒体存取部分26根据分析结果。

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