公开(公告)号：US20060150251A1

公开(公告)日：2006-07-06

申请号：US10559518

申请日：2004-05-11

申请人： Yoshikazu Takashima ,  Satoshi Kitani ,  Jun Yonemitsu ,  Katsumi Muramatsu ,  Tomoyuki Asano

发明人： Yoshikazu Takashima ,  Satoshi Kitani ,  Jun Yonemitsu ,  Katsumi Muramatsu ,  Tomoyuki Asano

IPC分类号： H04N7/16

CPC分类号： G11B20/0021 ,  G11B20/00086 ,  H04L9/0869 ,  H04L2209/60

摘要： The present invention provides a configuration for preventing each entity code stored in information recording media from being leaked. Authoring studio code (ASC) and disc manufacturer code (DMC) are encrypted without failure and the encrypted codes are stored in information recording media. The data setting location in program map table (PMT) is controlled such that these entity codes will not overlap the seed area that provides key generating information, so that, if the packet storing the program map table storing authoring studio code (ASC) and disc manufacturer code (DMC) is set to an arbitrary position in a content packet sequence, these entity codes will not overlap the seed area that is non-encrypted data, thereby preventing these entity codes from being leaked outside.

摘要翻译： 本发明提供一种用于防止存储在信息记录介质中的每个实体代码泄露的配置。 加密工作室代码（ASC）和光盘制造商代码（DMC）被加密而无故障，加密代码存储在信息记录介质中。 控制程序映射表（PMT）中的数据设置位置，使得这些实体代码不会与提供密钥生成信息的种子区域重叠，从而如果存储存储创作工作室代码（ASC）的程序映射表的数据包和盘 制造商代码（DMC）被设置在内容分组序列中的任意位置，这些实体代码将不与未加密数据的种子区域重叠，从而防止这些实体代码在外部泄漏。

公开(公告)号：US20060140402A1

公开(公告)日：2006-06-29

申请号：US11359928

申请日：2006-02-22

申请人： Ryuji Ishiguro ,  Yoshitomo Osawa ,  Yoshio Osakabe ,  Makoto Sato ,  Hisato Shima ,  Tomoyuki Asano

发明人： Ryuji Ishiguro ,  Yoshitomo Osawa ,  Yoshio Osakabe ,  Makoto Sato ,  Hisato Shima ,  Tomoyuki Asano

IPC分类号： H04L9/00

CPC分类号： H04L9/0891 ,  G06F21/10 ,  G06F21/445 ,  G06F21/6209 ,  G06F21/725 ,  G06F21/73 ,  G06F21/85 ,  G06F2211/007 ,  G06F2221/2107 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00492 ,  G11B20/00521 ,  G11B2220/2525 ,  G11B2220/2562 ,  H04L9/008 ,  H04L9/0861 ,  H04L9/0869 ,  H04L2209/603

摘要： The invention provides an enciphering apparatus and method, a deciphering apparatus and method and an information processing apparatus and method by which illegal copying can be prevented with certainty. Data enciphered by a 1394 interface of a DVD player is transmitted to a personal computer and a magneto-optical disk apparatus through a 1394 bus. In the magneto-optical disk apparatus with which a change to a function is open to a user, the received data is deciphered by a 1394 interface. In contrast, in the personal computer with which a change to a function is open to a user, the enciphered data is deciphered using a time variable key by a 1394 interface, and a result of the decipherment is further deciphered using a session key by an application section.

公开(公告)号：US20050244001A1

公开(公告)日：2005-11-03

申请号：US10517783

申请日：2004-04-05

申请人： Satoshi Kitani ,  Jun Yonemitsu ,  Katsumi Muramatsu ,  Tomoyuki Asano ,  Yoshikazu Takashima

发明人： Satoshi Kitani ,  Jun Yonemitsu ,  Katsumi Muramatsu ,  Tomoyuki Asano ,  Yoshikazu Takashima

IPC分类号： G11B20/00 ,  H04L9/06 ,  H04L9/08 ,  H04N7/167

CPC分类号： G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00528 ,  H04L9/0631 ,  H04L9/0869 ,  H04L2209/60

摘要： The present invention provides a configuration capable of effectively preventing an encrypted content stored on an information-recording medium from being misused. In this configuration, a seed (seed 2) required for generating a block key to be applied to a process to decode an encrypted content is stored as information encrypted by using another block key Kb1. In addition, in a configuration where the seed (seed 2) needs to be transferred from a device to another, both the seed (seed 2) and a recording key K2 are transferred from the device to the other as information encrypted by using a session key. In such configurations, it is difficult to analyze the seed (seed 2) by acquisition of data from the information-recording medium or a data transmission line. Thus, difficulties to analyze a key generated by using the seed and analyze an encryption algorithm are increased. As a result, protection of contents at a high level of security can be implemented.

摘要翻译： 本发明提供能够有效地防止存储在信息记录介质上的加密内容被滥用的配置。 在该结构中，作为通过使用另一个块密钥Kb 1加密的信息，存储用于生成要应用于解码加密内容的处理的块密钥所需的种子（种子2）。 此外，在种子（种子2）需要从设备传送到另一种的配置中，种子（种子2）和记录密钥K 2都从设备传送到另一个，作为通过使用 会话密钥。 在这种配置中，难以通过从信息记录介质或数据传输线路获取数据来分析种子（种子2）。 因此，分析使用种子生成的密钥并分析加密算法的难度增加。 因此，可以实现对高度安全性的内容的保护。

公开(公告)号：US06961219B2

公开(公告)日：2005-11-01

申请号：US10484275

申请日：2002-07-22

申请人： Tomoyuki Asano ,  Ikuko Kawamoto

发明人： Tomoyuki Asano ,  Ikuko Kawamoto

IPC分类号： G11B5/48 ,  G11B5/55 ,  G11B5/60

CPC分类号： G11B5/6005 ,  G11B5/4833 ,  G11B5/5552

摘要： A disk drive (10) includes a plurality of thin-film members (36) for respectively covering the desired contour portions in a plurality of suspension arms (26) of an actuator (20). Each thin-film member (36) is fixedly attached to the surface of the suspension arm to cover the contour portion around a through hole (34) formed in the corresponding suspension arm (26) for reducing the moment of inertia, so as to cover the through hole. The thin-film member (36) substantially makes the contour portion around the through hole of the suspension arm (26) flush, and the air flow caused around the storage disks (16) rotating at high speed is guided smoothly along this contour portion. As a result, the air flow is stabilized, and the influences such as vibration on the actuator (20) are suppressed.

摘要翻译： 磁盘驱动器（10）包括用于分别覆盖致动器（20）的多个悬架臂（26）中的期望轮廓部分的多个薄膜构件（36）。 每个薄膜构件（36）固定地附接到悬架臂的表面以覆盖围绕形成在相应悬架臂（26）中的通孔（34）的轮廓部分，用于减小惯性矩，以便覆盖 通孔。 薄膜部件36基本上使悬臂（26）的通孔周围的轮廓部分齐平，并且沿着该轮廓部分平滑地引导围绕高速旋转的存储盘（16）引起的空气流。 结果，气流稳定，并且抑制了对致动器（20）的振动等影响。

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.

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.

公开(公告)号：US06728379B1

公开(公告)日：2004-04-27

申请号：US09340900

申请日：1999-06-28

申请人： Yoshihito Ishibashi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Tomoyuki Asano

发明人： Yoshihito Ishibashi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Tomoyuki Asano

IPC分类号： H04N7167

CPC分类号： H04L63/0428 ,  H04L63/062 ,  H04L2463/101 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/26606 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/4627 ,  H04N21/63345 ,  H04N21/8355

摘要： An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption of a content encrypted by a content encryption key. The received encrypted content decryption key is sent to a content key decryption section where it is decrypted. The decrypted content decryption key and copy control code are sent to a content key encryption section where they are encrypted by an encryption key which can be decrypted at an external information processor, namely, a session key, to send an encrypted content decryption key with a copy control code to the external information processor via a communication section.

摘要翻译： 信息处理器在其通信部分处接收通过分发加密密钥对由内容加密密钥加密的内容进行解密的内容解密密钥进行加密而生成的加密内容解密密钥。 接收到的加密内容解密密钥被发送到解密密钥的内容密​​钥解密部分。 解密的内容解密密钥和复制控制码被发送到内容密钥加密部分，在那里它们被加密密钥加密，该加密密钥可以在外部信息处理器（即会话密钥）处被解密，以发送加密的内容解密密钥 通过通信部将复制控制代码复制到外部信息处理器。

公开(公告)号：US06526146B1

公开(公告)日：2003-02-25

申请号：US09250983

申请日：1999-02-16

申请人： Megumu Hashimoto ,  Yoshitomo Osawa ,  Tomoyuki Asano

发明人： Megumu Hashimoto ,  Yoshitomo Osawa ,  Tomoyuki Asano

IPC分类号： G06F1214

CPC分类号： H04L12/40058 ,  G11B20/00086 ,  G11B20/00768 ,  G11B20/00775 ,  H04L12/40071 ,  H04L12/40117 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N5/913 ,  H04N21/4135 ,  H04N21/43632 ,  H04N21/8355 ,  H04N2005/91328 ,  H04N2005/91364

摘要： An optical disc recorder/reproducer, a personal computer, a television receiver, an IRD and so forth are connected mutually via a 1394 serial bus. When data transmitted from the personal computer to the optical disc recorder/reproducer via the 1394 serial bus are to be recorded, an isochronous packet is sent to the recorder/reproducer inclusive of the data to indicate whether the personal computer is a device capable of cognizing copy control information. And depending on whether the source of the transmitted data is a copy control information cognizant device or not, the optical disc recorder/reproducer updates the copy control information with reference to a selected table, and then the updated copy control information is recorded on the optical disc. This system can distinguish between a prerecorded disc and a user-recorded disc, hence achieving exact management of copy control information.

摘要翻译： 光盘记录器/再现器，个人计算机，电视接收机，IRD等通过1394串行总线相互连接。 当从个人计算机经由1394串行总线传送到光盘记录器/再现器的数据将被记录时，同步数据包被发送到包括数据的记录器/再现器，以指示个人计算机是否能够识别 复制控制信息。 并且，根据所发送的数据的来源是否是复制控制信息识别装置，光盘记录器/再现器参考所选择的表更新复制控制信息，然后更新的复制控制信息被记录在光学 光盘。 该系统可以区分预先记录的光盘和用户记录的光盘，从而实现复制控制信息的精确管理。

公开(公告)号：US06373952B1

公开(公告)日：2002-04-16

申请号：US08952298

申请日：1998-05-29

申请人： Tomoyuki Asano ,  Makoto Ishii ,  Ichiro Kubota

发明人： Tomoyuki Asano ,  Makoto Ishii ,  Ichiro Kubota

IPC分类号： G06F124

摘要： The present invention provides a data transmission apparatus which enhances the safety with respect to leakage of encoded transmitted data by raising the safety of transmission of an encoding key or a decoding key. It provides a large capacity transmission line 152 such as a satellite transmission line for transmitting a large amount of data and a small capacity transmission line 156 such as a public telephone line for transmitting an encoding key or decoding key or information for the generation of them. The encoding session key 107 is generated by using a work key and a destination address of a receiving apparatus of the destination. Further, the decoding session key 108 is generated using one's own address and the work key. The work key is preferably encoded and transmitted through the small capacity transmission line 156. In the transmitting apparatus 101, in addition to the encoding of the data 105 which should be transmitted by using the encoding session converted as described above, transmission control information such as destination data is added and is transmitted to the receiving apparatus 102 through the large capacity transmission line 152. In the receiving apparatus 102, the encoded data 110 is decoded by using the decoding session key 108 converted as described above.

公开(公告)号：US06256391B1

公开(公告)日：2001-07-03

申请号：US09059776

申请日：1998-04-14

申请人： Ryuji Ishiguro ,  Yoshitomo Osawa ,  Yoshio Osakabe ,  Makoto Sato ,  Hisato Shima ,  Tomoyuki Asano

发明人： Ryuji Ishiguro ,  Yoshitomo Osawa ,  Yoshio Osakabe ,  Makoto Sato ,  Hisato Shima ,  Tomoyuki Asano

IPC分类号： H04N7167

CPC分类号： H04L9/0891 ,  G06F21/10 ,  G06F21/445 ,  G06F21/6209 ,  G06F21/725 ,  G06F21/73 ,  G06F21/85 ,  G06F2211/007 ,  G06F2221/2107 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00492 ,  G11B20/00521 ,  G11B2220/2525 ,  G11B2220/2562 ,  H04L9/008 ,  H04L9/0861 ,  H04L9/0869 ,  H04L2209/603

摘要： The invention provides an enciphering apparatus and method, a deciphering apparatus and method and an information processing apparatus and method by which illegal copying can be prevented with certainty. Data enciphered by a 1394 interface of a DVD player is transmitted to a personal computer and a magneto-optical disk apparatus through a 1394 bus. In the magneto-optical disk apparatus with which a change to a function is not open to a user, the received data is deciphered by a 1394 interface. In contrast, in the personal computer with which a change to a function is open to a user, the enciphered data is deciphered using a time variable key by a 1394 interface, and a result of the decipherment is further deciphered using a session key by an application section.

摘要翻译： 本发明提供了可以确定地防止非法复制的加密装置和方法，解密装置和方法以及信息处理装置和方法。 通过DVD播放器的1394接口加密的数据通过1394总线传送到个人计算机和磁光盘装置。 在功能变化对用户不开放的磁光盘装置中，接收到的数据被1394接口解密。 相反，在对用户进行功能改变的个人计算机中，使用1394接口的时间变量键解密加密数据，并且使用会话密钥进一步解密解密结果 申请部分。