公开(公告)号：US20080056492A1

公开(公告)日：2008-03-06

申请号：US11907773

申请日：2007-10-17

申请人： Mutsuyuki Okayama ,  Ryogo Yanagisawa ,  Hideshi Ishihara

发明人： Mutsuyuki Okayama ,  Ryogo Yanagisawa ,  Hideshi Ishihara

IPC分类号： H04L9/00

CPC分类号： G11B20/00086 ,  G06F21/10 ,  G06F21/6209 ,  G06F2221/2107 ,  G11B20/0021

摘要： A key generation section 10 generates a key K to be used for cryptographic processing, based on an encrypted key data group EK. A key information retention/selection section 20 retains Lhe generated key and an intermediate key which was obtained when generating the key, and outputs the retained key information in accordance with selection information SEL. The key information is retained, e.g., in a storage circuit within the integrated circuitry, in a form which is not recognizable as a key. A content encryption/decryption section 30 restrains the cryptographic processing result DO from being outputted during key generation. When a heading pattern is detected during the cryptographic processing of an input signal DI, a reset/input enable signal generation circuit 60 switches an input enable signal IE to a disabled state, and outputs a reset signal RST after Lhe cryptographic processing has been completed.

摘要翻译： 密钥生成部10基于加密密钥数据组EK生成用于密码处理的密钥K. 密钥信息保留/选择部分20保留产生密钥的Lhe生成密钥和中间密钥，并根据选择信息SEL输出保留的密钥信息。 关键信息例如在集成电路内的存储电路中以不能被识别为密钥的形式被保留。 内容加密/解密部分30限制在密钥生成期间输出密码处理结果DO。 当在输入信号DI的加密处理期间检测到标题图案时，复位/输入使能信号产生电路60将输入使能信号IE切换到禁用状态，并且在加密处理完成之后输出复位信号RST。

公开(公告)号：US08275998B2

公开(公告)日：2012-09-25

申请号：US12953676

申请日：2010-11-24

申请人： Toshihisa Nakano ,  Hideshi Ishihara ,  Makoto Tatebayashi

发明人： Toshihisa Nakano ,  Hideshi Ishihara ,  Makoto Tatebayashi

IPC分类号： H04L29/06 ,  H04L9/32 ,  G06F21/00 ,  G06F11/30 ,  G06F12/14

CPC分类号： H04L9/083 ,  H04L9/3247 ,  H04L2209/60

摘要： A key distribution system distributes key data for using content to a second encryption device that has been legitimately outsourced processing by a first encryption device. The first encryption device acquires permission information indicating that the first encryption device has permission to use the content, generates certification information by making an irreversible alteration the to permission information, and transmits the permission information and the certification information to the second encryption device. The second encryption device receives the permission information and the certification information, sends them to a key distribution device, and acquires the key data from the key distribution device. The key distribution device receives the permission information and the certification information, judges whether or not the certification information was generated by the by the first encryption device, and if judging in the affirmative, transmits the key data to the second encryption device.

摘要翻译： 密钥分配系统将用于使用内容的密钥数据分配给已被第一加密设备合法外包处理的第二加密设备。 第一加密装置获取表示第一加密装置具有允许使用内容的许可信息，通过对许可信息进行不可逆变更来生成认证信息，并将许可信息和认证信息发送到第二加密装置。 第二加密装置接收许可信息和认证信息，将其发送到密钥分发装置，并从密钥分发装置获取密钥数据。 密钥分配装置接收许可信息和认证信息，判断认证信息是否由第一加密装置生成，并且如果肯定地判断，则将密钥数据发送到第二加密装置。

公开(公告)号：US08140675B2

公开(公告)日：2012-03-20

申请号：US10580178

申请日：2004-12-20

申请人： Kaoru Yokota ,  Motoji Ohmori ,  Koichi Morioka ,  Hideshi Ishihara ,  Makoto Tatebayashi

发明人： Kaoru Yokota ,  Motoji Ohmori ,  Koichi Morioka ,  Hideshi Ishihara ,  Makoto Tatebayashi

IPC分类号： G06F15/173

CPC分类号： G11B20/00086 ,  G11B20/10

摘要： A content reproduction apparatus (1) which reproduces digital contents, and includes a device key storage unit (110) holding a device key (110a) specific to the content reproduction apparatus (1) in a manner that does not allow access from outside the content reproduction apparatus (1). The content reproduction apparatus (1), also includes a device ID storage unit (19) holding device key index information (19a) that is in a one-to-one association with a device key (110a), an instruction code receiving unit (14a) receiving an instruction code to output index information, a device key index information obtainment processing unit (10a) outputting, to outside, the device key index information (19a) stored in the device ID storage unit (19) based on the instruction, and a device key index information output processing unit (11a).

摘要翻译： 一种再现数字内容的内容再现装置（1），并且包括以不允许从内容外部访问的方式保存特定于内容再现装置（1）的设备密钥（110a）的设备密钥存储单元（110） 再现装置（1）。 内容再现装置（1）还包括与设备密钥（110a）一一对应的设备密钥索引信息（19a）的设备ID存储单元（19），指令代码接收单元 接收用于输出索引信息的指令代码的设备密钥索引信息获取处理单元，基于该指令将存储在设备ID存储单元中的设备密钥索引信息（19a）输出到外部， 和设备密钥索引信息输出处理单元（11a）。

公开(公告)号：US20110279642A1

公开(公告)日：2011-11-17

申请号：US13080858

申请日：2011-04-06

申请人： Mitsuaki Oshima ,  Hiromu Kitaura ,  Hideki Fukuda ,  Hideshi Ishihara ,  Toshiyuki Kawara

发明人： Mitsuaki Oshima ,  Hiromu Kitaura ,  Hideki Fukuda ,  Hideshi Ishihara ,  Toshiyuki Kawara

IPC分类号： H04N13/04

CPC分类号： H04N13/172 ,  G11B20/00007 ,  G11B20/10222 ,  G11B20/10527 ,  G11B20/1217 ,  G11B20/14 ,  G11B27/005 ,  G11B27/10 ,  G11B27/105 ,  G11B2020/10546 ,  G11B2020/10675 ,  G11B2020/1074 ,  G11B2020/10805 ,  G11B2020/10953 ,  G11B2020/1288 ,  G11B2220/2562 ,  H04N5/04 ,  H04N5/4401 ,  H04N5/45 ,  H04N5/46 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N7/012 ,  H04N7/0122 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/8045 ,  H04N9/8063 ,  H04N9/8205 ,  H04N9/8227 ,  H04N9/877 ,  H04N13/10 ,  H04N13/144 ,  H04N13/15 ,  H04N13/161 ,  H04N13/167 ,  H04N13/178 ,  H04N13/183 ,  H04N13/189 ,  H04N13/194 ,  H04N13/239 ,  H04N13/341 ,  H04N13/359 ,  H04N13/361 ,  H04N13/363 ,  H04N13/398 ,  H04N19/597 ,  H04N19/61 ,  H04N21/42646 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/4325 ,  H04N21/4334 ,  H04N21/4392 ,  H04N2013/0085

摘要： The present invention has an objective of providing an optical disk having a high resolution picture and a system for reproducing data on the optical disk, which are compatible with a conventional system for reproducing an ordinary resolution picture. A high resolution signal is divided into a main signal and a sub signal by picture division means and MPEG-encoded. The main signal and the sub signal are divided into frames each having 1 GOP or more. The resultant first interleave block 54 and second interleave block 55 are recorded alternately on an optical disk. A high resolution reproduction apparatus reproduced both the first and second interleave blocks, so that a high resolution picture is obtained. A non-high resolution reproduction apparatus reproduces only the first or second interleave block, so that an ordinary resolution picture.

公开(公告)号：US07698622B2

公开(公告)日：2010-04-13

申请号：US11736817

申请日：2007-04-18

申请人： Shoei Kobayashi ,  Susumu Senshu ,  Tamotsu Yamagami ,  Makoto Usui ,  Hideshi Ishihara ,  Mitsurou Moriya ,  Cornelis Marinus Schep ,  Jakob Gerrit Nijboer ,  Aalbert Stek

发明人： Shoei Kobayashi ,  Susumu Senshu ,  Tamotsu Yamagami ,  Makoto Usui ,  Hideshi Ishihara ,  Mitsurou Moriya ,  Cornelis Marinus Schep ,  Jakob Gerrit Nijboer ,  Aalbert Stek

IPC分类号： H03M13/00

CPC分类号： G11B7/00736 ,  G11B20/00086 ,  G11B20/00268 ,  G11B20/1252 ,  G11B20/18 ,  G11B20/1833 ,  G11B2020/122 ,  G11B2020/1222 ,  G11B2020/1287 ,  G11B2220/2537 ,  G11B2220/2562

摘要： An ECC block is constituted by RS(248, 216, 33). Of a data length of 216 bytes (symbols), only 16 bytes are allocated to BCA data and the remaining 200 bytes are used for fixed data having a predetermined value. Using the fixed data of 200 bytes and the BCA data of 16 bytes, parities of 32 bytes (symbols) are calculated. Only the BCA data of 16 bytes and the parities of the former 16 bytes of the 32-byte parities, that is, a total of 32 bytes only, are recorded in a burst cutting area of an optical disc. In decoding, error correction processing is carried out by using the fixed data of 200 bytes. The unrecorded parities of 16 bytes are processed as having been erased. Thus, the error correction capability in a burst cutting area of an optical disc can be improved.

摘要翻译： ECC块由RS（248,216,33）构成。 在216字节（符号）的数据长度中，只有16字节被分配给BCA数据，剩余的200字节用于具有预定值的固定数据。 使用200字节的固定数据和16字节的BCA数据，计算32字节（符号）的奇偶校验。 只有16字节的BCA数据和32字节奇偶校验的前16个字节的奇偶校验，即仅总共32个字节的奇偶校验数据被记录在光盘的突发切割区域中。 在解码中，通过使用200字节的固定数据来执行纠错处理。 16字节的未记录奇偶校验被处理为已被擦除。 因此，可以提高光盘的突发切割区域中的纠错能力。

公开(公告)号：US07542568B2

公开(公告)日：2009-06-02

申请号：US10490346

申请日：2002-09-11

申请人： Motoji Ohmori ,  Makoto Tatebayashi ,  Takahiro Nagai ,  Hideshi Ishihara

发明人： Motoji Ohmori ,  Makoto Tatebayashi ,  Takahiro Nagai ,  Hideshi Ishihara

IPC分类号： H04N7/167

CPC分类号： G11B20/00086 ,  H04L9/0891 ,  H04L9/3268 ,  H04L2209/603

摘要： An encryption device, a decrypting device, a secret key generation device, a copyright protection system and a cipher communication device including: a CRL memory unit memorizing a CRL, a device key ring memory unit memorizing a specific device key KD_A in every IC card used in a decrypting device, a content key memory unit memorizing a content key Kc, which is a secret key for decrypting content, and a hashing function processing unit calculating a hashing value of the CRL memorized in the CRL memory unit. The devices further including an Ex-OR unit carrying out an exclusive OR between the hashing value and the device key KD_A memorized in the device key ring memory unit, and an Enc unit encrypting the content key Kc memorized in the content key memory unit using an output value of an Ex-OR unit.

摘要翻译： 一种加密装置，解密装置，秘密密钥生成装置，版权保护系统和密码通信装置，包括：CRL存储单元，存储CRL;存储每个使用的IC卡中的特定设备密钥KD_A的设备密钥存储单元; 在解密装置中，存储作为用于解密内容的秘密密钥的内容密​​钥Kc的内容密钥存储单元和计算存储在CRL存储单元中的CRL的散列值的散列函数处理单元。 所述设备还包括执行散列值和存储在设备密钥环存储器单元中的设备密钥KD_A之间的异或的Ex-OR单元，以及Enc装置，用于使用存储在内容密钥存储单元中的内容密钥存储单元 Ex-OR单元的输出值。

公开(公告)号：US07339869B2

公开(公告)日：2008-03-04

申请号：US10479356

申请日：2002-09-24

申请人： Kenzo Ishibashi ,  Yasumori Hino ,  Takahiro Nagai ,  Hideshi Ishihara ,  Shinichi Tanaka

发明人： Kenzo Ishibashi ,  Yasumori Hino ,  Takahiro Nagai ,  Hideshi Ishihara ,  Shinichi Tanaka

IPC分类号： G11B11/03

CPC分类号： G11B23/284 ,  G11B7/00 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/0021 ,  G11B20/00326 ,  G11B20/00514 ,  G11B20/00557 ,  G11B20/00594 ,  G11B20/00601 ,  G11B20/0071 ,  G11B20/10

摘要： An optical disk according to the present invention is the optical disk on which secret information on unique information given to a specific optical disk manufacturer or a specific optical disk and information recorded on an infringement disk list of identifying an illegitimate optical disk manufacturer or an illegitimate optical disk are recorded in advance, and the optical disk has an area in which reproduction-only encrypted data encrypted based on the secret information and the information on the infringement disk list is recorded in advance or an area capable of recording the encrypted data to be encrypted based on the secret information and the information on the infringement disk list.

摘要翻译： 根据本发明的光盘是其上提供给特定光盘制造商或特定光盘的唯一信息的秘密信息和记录在识别非法光盘制造商或非法光学器件的侵权磁盘列表上的信息的光盘 磁盘被预先记录，并且光盘具有预先记录基于秘密信息加密的再现加密数据和关于侵权磁盘列表的信息的区域或能够记录加密数据的区域，以被加密 基于秘密信息和侵权磁盘列表信息。

公开(公告)号：US07092342B2

公开(公告)日：2006-08-15

申请号：US10381419

申请日：2001-10-26

申请人： Takahiro Nagai ,  Hideshi Ishihara ,  Takashi Yumiba ,  Rie Takahashi ,  Mamoru Shoji ,  Hiroyuki Yamaguchi ,  Harumitsu Miyashita

发明人： Takahiro Nagai ,  Hideshi Ishihara ,  Takashi Yumiba ,  Rie Takahashi ,  Mamoru Shoji ,  Hiroyuki Yamaguchi ,  Harumitsu Miyashita

IPC分类号： G11B20/12

CPC分类号： G11B20/0021 ,  G11B7/007 ,  G11B7/00745 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/00268 ,  G11B20/00376 ,  G11B20/00586 ,  G11B20/00594 ,  G11B20/0071 ,  G11B20/00768 ,  G11B20/10 ,  G11B27/3027 ,  G11B2220/2562

摘要： An optical disc has a plurality of sectors, where each of the plurality of sectors includes a plurality of frames. A sub information bit value of “0” or “1” is assigned to the plurality of frames constituting a sector, excluding the first and last frames. Edge positions are displaced so that leading/lagging errors appear in accordance with a certain rule when data fields of the frames to which the sub information bit value “1” is assigned are read. Edge positions are displaced so that leading/lagging errors appear in accordance with a reversal of the certain rule when data fields of the frames to which the sub information bit value “0” is assigned are read.

公开(公告)号：US20060110131A1

公开(公告)日：2006-05-25

申请号：US10528165

申请日：2003-10-15

申请人： Osamu Okauchi ,  Tadashi Nakamura ,  Hideshi Ishihara ,  Yasuyuki Kurosawa ,  Masanori Ito

发明人： Osamu Okauchi ,  Tadashi Nakamura ,  Hideshi Ishihara ,  Yasuyuki Kurosawa ,  Masanori Ito

IPC分类号： H04N7/52

CPC分类号： H04N5/9202 ,  H04N5/85

摘要： A data processor (10) according to the present invention includes: a video signal receiving section (100) for receiving a video signal representing video and aspect information to control aspect ratio of the video; an audio signal receiving section (102) for receiving an audio signal representing audio; a detecting section (104) for detecting the aspect information from the video signal; a stream generating section (101) for generating encoded data by encoding the video and audio signals by a predetermined encoding technique and also generating an encoded stream as a set of the encoded data; management information generating section (106) for generating management information to manage the encoded stream being processed, the management information including the aspect information for each set of the encoded data; and a writing section (120) for storing the management information and the encoded stream as at least one file on a storage medium.

摘要翻译： 根据本发明的数据处理器（10）包括：视频信号接收部分（100），用于接收表示视频和方面信息的视频信号以控制视频的纵横比; 用于接收表示音频的音频信号的音频信号接收部分（102）; 检测部分，用于从视频信号中检测方位信息; 流生成部（101），用于通过预定编码技术对视频和音频信号进行编码来生成编码数据，并且还生成编码流作为编码数据的集合; 管理信息生成部（106），用于生成管理信息以管理正在处理的编码流，所述管理信息包括每组编码数据的方面信息; 以及用于将管理信息和编码流作为至少一个文件存储在存储介质上的写入部分（120）。

公开(公告)号：US20050185547A1

公开(公告)日：2005-08-25

申请号：US11117549

申请日：2005-04-29

申请人： Takahiro Nagai ,  Hideshi Ishihara ,  Yuji Takagi ,  Takashi Yumiba ,  Mamoru Shoji ,  Mitsuaki Oshima ,  Shunji Ohara ,  Motoshi Ito ,  Takashi Ishida ,  Atsushi Nakamura ,  Tadashi Jahana ,  Kouhei Nakata

发明人： Takahiro Nagai ,  Hideshi Ishihara ,  Yuji Takagi ,  Takashi Yumiba ,  Mamoru Shoji ,  Mitsuaki Oshima ,  Shunji Ohara ,  Motoshi Ito ,  Takashi Ishida ,  Atsushi Nakamura ,  Tadashi Jahana ,  Kouhei Nakata

IPC分类号： G11B7/0037 ,  G11B7/007 ,  G11B7/24038 ,  G11B7/26 ,  G11B19/12 ,  G11B20/00 ,  G11B20/12 ,  G11B23/28 ,  G11B23/34 ,  G11B23/36 ,  G11B7/004

CPC分类号： G11B23/284 ,  G11B7/0037 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/24038 ,  G11B7/263 ,  G11B19/12 ,  G11B19/122 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/00181 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00268 ,  G11B20/00304 ,  G11B20/00311 ,  G11B20/00333 ,  G11B20/00347 ,  G11B20/00492 ,  G11B20/00528 ,  G11B20/00557 ,  G11B20/00666 ,  G11B20/00768 ,  G11B20/0084 ,  G11B20/1217 ,  G11B23/281 ,  G11B23/34 ,  G11B23/36

摘要： A recording type optical disk on which data is recordable includes a data recording and reproducing area for recording data therein and reproducing data therefrom, and a read-only disk identification information area for recording disk identification information for identifying the optical disk therein. In the optical disk, the disk identification information is formed by removing a reflection film that is formed on the optical disk in a strip shape. The disk identification information includes an inherent disk identifier for each optical disk, and the data recording and reproducing area includes an area for recording encrypted data therein. The encrypted data is encrypted by using information including the disk identification information for identifying the optical disk as a key.