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1. 发明申请

US20080279383A1 METHOD AND APPARATUS OF ENCIPHERING AND DECIPHERING DATA USING MULTIPLE KEYS 审中-公开
标题翻译：使用多种方法进行编码和分解数据的方法和装置
公开(公告)号：US20080279383A1
公开(公告)日：2008-11-13
申请号：US12175920
申请日：2008-07-18
申请人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
发明人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
IPC分类号： H04L9/06
CPC分类号： G11B23/284 , G11B20/00086 , G11B20/0021 , G11B20/00253 , G11B20/00557 , G11B23/28 , H04N5/913 , H04N2005/91364
摘要： On a recording medium, first information obtained by enciphering data with the first key and second information obtained by enciphering the first key with each of the predetermined second keys are recorded. A deciphering method is characterized by comprising the steps of inputting the first and second information, deciphering the first key using at least one of the second keys, determining by a specific method that the obtained first key is correct, and then deciphering the data using the first key to obtain the data.
摘要翻译：在记录介质上记录通过用第一密钥加密数据而获得的第一信息和通过用预定的第二密钥加密第一密钥获得的第二信息。解密方法的特征在于包括以下步骤：输入第一和第二信息，使用第二密钥中的至少一个解密第一密钥，通过特定方法确定所获得的第一密钥是正确的，然后使用获取数据的第一个关键。

2. 发明授权

US07433474B2 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys 有权
标题翻译：使用其他密钥加密和解密的密钥对数据进行加密和解密的方法和装置
公开(公告)号：US07433474B2
公开(公告)日：2008-10-07
申请号：US10035311
申请日：2002-01-04
申请人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
发明人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
IPC分类号： H04L9/00
CPC分类号： G11B23/284 , G11B20/00086 , G11B20/0021 , G11B20/00253 , G11B20/00557 , G11B23/28 , H04N5/913 , H04N2005/91364
摘要： On a recording medium, first information obtained by enciphering data with the first key and second information obtained by enciphering the first key with each of the predetermined second keys are recorded. A deciphering method is characterized by comprising the steps of inputting the first and second information, deciphering the first key using at least one of the second keys, determining by a specific method that the obtained first key is correct, and then deciphering the data using the first key to obtain the data.
摘要翻译：在记录介质上记录通过用第一密钥加密数据而获得的第一信息和通过用预定的第二密钥加密第一密钥获得的第二信息。解密方法的特征在于包括以下步骤：输入第一和第二信息，使用第二密钥中的至少一个解密第一密钥，通过特定方法确定所获得的第一密钥是正确的，然后使用获取数据的第一个关键。

3. 发明授权

US06347145B2 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys 失效
公开(公告)号：US06347145B2
公开(公告)日：2002-02-12
申请号：US08883337
申请日：1997-06-26
申请人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
发明人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
IPC分类号： H04L900
CPC分类号： G11B23/284 , G11B20/00086 , G11B20/0021 , G11B20/00253 , G11B20/00557 , G11B23/28 , H04N5/913 , H04N2005/91364
摘要： On a recording medium, first information obtained by enciphering data with the first key and second information obtained by enciphering the first key with each of the predetermined second keys are recorded. A deciphering method is characterized by comprising the steps of inputting the first and second information, deciphering the first key using at least one of the second keys, determining by a specific method that the obtained first key is correct, and then deciphering the data using the first key to obtain the data.

4. 发明授权

US6151394A Encrypted communication system that limits the damage caused when a secret key has been leaked 失效
标题翻译：加密通信系统，限制秘密密钥泄露时造成的损坏
公开(公告)号：US6151394A
公开(公告)日：2000-11-21
申请号：US940052
申请日：1997-09-30
申请人： Makoto Tatebayashi , Yoshihisa Fukushima , Takehisa Kato , Naoki Endoh , Koichi Hirayama
发明人： Makoto Tatebayashi , Yoshihisa Fukushima , Takehisa Kato , Naoki Endoh , Koichi Hirayama
IPC分类号： H04L9/08 , H04L9/00
CPC分类号： H04L9/0833 , H04L9/0822
摘要： In an encrypted transmission system composed of one transmission apparatus 10 and twenty-eight reception apparatuses A1-G4 that are classified into seven groups A-G, two secret key exclusively selected out of a total of fourteen secret keys are distributed beforehand to each group. The transmission apparatus 10 encrypts the same message M using one of the two secret keys distributed to each group and sends each group a message M encrypted with one of the group's secret keys. The reception apparatuses each decrypt the received cryptogram separately using each of the secret keys assigned to the of group to which each reception apparatus belongs, judge whether either of the two decryption results conforms to a predetermined rule, and specify the correct decryption result.
摘要翻译：在由分组为七组A-G的一个发送装置10和二十八个接收装置A1-G4组成的加密传输系统中，预先向每个组分发从总共14个秘密密钥中唯一选择的两个秘密密钥。发送装置10使用分配给每个组的两个秘密密钥中的一个对相同的消息M进行加密，并且向每个组发送用该组的秘密密钥之一加密的消息M. 接收装置分别使用分配给每个接收装置所属的组的每个秘密密钥来分别接收密码，判断两个解密结果是否符合预定规则，并指定正确的解密结果。

5. 发明授权

US6009174A Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded 失效
公开(公告)号：US6009174A
公开(公告)日：1999-12-28
申请号：US957910
申请日：1997-10-27
申请人： Makoto Tatebayashi , Motoji Ohmori , Takehisa Kato , Naoki Endoh , Koichi Hirayama
发明人： Makoto Tatebayashi , Motoji Ohmori , Takehisa Kato , Naoki Endoh , Koichi Hirayama
IPC分类号： H04L9/08 , H04N7/167 , H04N21/6334 , H04L9/00 , H04L9/12 , H04L9/14
CPC分类号： H04N21/63345 , H04L9/0838 , H04L9/0891 , H04N7/1675
摘要： A transmission apparatus 100 includes a secret key storage unit 103 that stores three secret keys K1, K2 and K3, a secret key selection unit 104 that selects one secret key Ks from the secret keys, a message generation unit 106 for generating a message M used as a carrier for indicating a secret key, an encryption module 105 for generating a cryptogram Ca by encrypting the generated message M using the secret key Ks, an encryption module 107 for generating a cryptogram Cm by encrypting the message M using the message M itself as the secret key, and two transmission units 111 and 112 for transmitting the cryptograms Ca and Cm to the reception apparatus 200 to indicate the selected secret key Ks. The reception apparatus 200 includes a decryption module, such as 221, for generating decrypted data Mi by decrypting the cryptogram Ca using a secret key Ki out of the three secret keys, and a decryption module, such as 222, for generating decrypted data Mii by decrypting the cryptogram Cm using the decrypted data Mi, and authorizes that the secret key Ki has been selected when the decrypted data Mi matches the decrypted data Mii.

6. 发明授权

US6160890A Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded 有权
标题翻译：秘密密钥传输方法，高度安全，可以限制秘密密钥泄漏或解码时造成的损害
公开(公告)号：US6160890A
公开(公告)日：2000-12-12
申请号：US470250
申请日：1999-12-22
申请人： Makoto Tatebayashi , Motoji Ohmori , Takehisa Kato , Naoki Endoh , Koichi Hirayama
发明人： Makoto Tatebayashi , Motoji Ohmori , Takehisa Kato , Naoki Endoh , Koichi Hirayama
IPC分类号： H04L9/08 , H04N7/167 , H04N21/6334 , H04L9/00
CPC分类号： H04N21/63345 , H04L9/0838 , H04L9/0891 , H04N7/1675
摘要： A transmission apparatus 100 includes a secret key storage unit 103 that stores three secret keys K1, K2 and K3, a secret key selection unit 104 that selects one secret key Ks from the secret keys, a message generation unit 106 for generating a message M used as a carrier for indicating a secret key, an encryption module 105 for generating a cryptogram Ca by encrypting the generated message M using the secret key Ks, an encryption module 107 for generating a cryptogram Cm by encrypting the message M using the message M itself as the secret key, and two transmission units 111 and 112 for transmitting the cryptograms Ca and Cm to the reception apparatus 200 to indicate the selected secret key Ks. The reception apparatus 200 includes a decryption module, such as 221, for generating decrypted data Mi by decrypting the cryptogram Ca using a secret key Ki out of the three secret keys, and a decryption module, such as 222, for generating decrypted data Mii by decrypting the cryptogram Cm using the decrypted data Mi, and authorizes that the secret key Ki has been selected when the decrypted data Mi matches the decrypted data Mii.
摘要翻译：发送装置100包括存储三个秘密密钥K1，K2和K3的秘密密钥存储单元103，从密钥中选择一个秘密密钥Ks的秘密密钥选择单元104，用于生成使用的消息M的消息生成单元106 作为用于指示秘密密钥的载体，用于通过使用秘密密钥Ks加密生成的消息M来生成密码Ca的加密模块105，用于通过使用消息M自身通过加密消息M来生成密码Cm的加密模块107 秘密密钥和用于将密码Ca和Cm发送到接收装置200的两个发送单元111和112，以指示所选择的秘密密钥Ks。接收装置200包括用于通过使用三个秘密密钥中的秘密密钥Ki对密码Ca进行解密来生成解密数据Mi的解密模块，以及用于通过以下方式生成解密数据Mii的解密模块：使用解密数据Mi解密密码Cm，并且授权当解密数据Mi与解密数据Mii匹配时已经选择了秘密密钥Ki。

7. 发明授权

US07233667B1 Record medium, record medium manufacturing device, computer readable record medium on which program is recorded, and data presentation device 有权
标题翻译：记录介质，记录介质制造装置，记录有程序的计算机可读记录介质和数据呈现装置
公开(公告)号：US07233667B1
公开(公告)日：2007-06-19
申请号：US09267639
申请日：1999-03-15
申请人： Taku Katoh , Naoki Endoh , Koichi Hirayama , Hisashi Yamada
发明人： Taku Katoh , Naoki Endoh , Koichi Hirayama , Hisashi Yamada
IPC分类号： H04L1/00
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00289 , G11B20/00884 , G11B20/0092 , G11B20/1833 , G11B23/284
摘要： A record medium comprises an original data obtained by superimposing a presentation target data, to which an error correction encoding is performed and an identification information.
摘要翻译：记录介质包括通过叠加执行纠错编码的显示目标数据和识别信息而获得的原始数据。

8. 发明授权

US5987066A Digital data transmitting method 失效
标题翻译：数字数据传输方式
公开(公告)号：US5987066A
公开(公告)日：1999-11-16
申请号：US759956
申请日：1996-12-03
申请人： Tadashi Kojima , Koichi Hirayama , Hisashi Yamada , Yoshiaki Moriyama , Fumihiko Yokogawa , Takao Arai , Toshifumi Takeuchi , Shinichi Tanaka , Akira Kurahashi , Toshiyuki Shimada
发明人： Tadashi Kojima , Koichi Hirayama , Hisashi Yamada , Yoshiaki Moriyama , Fumihiko Yokogawa , Takao Arai , Toshifumi Takeuchi , Shinichi Tanaka , Akira Kurahashi , Toshiyuki Shimada
IPC分类号： G11B20/14 , H03M5/14 , H03M7/14 , H04L7/04 , H04L7/08 , H04L25/49 , H04B14/04 , G11B3/90 , G11B5/09
CPC分类号： H03M5/145 , G11B20/1426 , H04L25/4906 , H04L7/041
摘要： A transmitting method of digital data whereby information data can be reproduced at a high precision. In order to retain digital data in sectors comprising a plurality of sync frames and sequentially transmit, the sync frame is comprised of the sync signal and the run length limited code which satisfies the limitations of the minimum run length and the maximum run length, and the sync signal includes the sync pattern constituted by a bit pattern of a run length that is longer than the maximum run length by only 3T and addition bit patterns which are arranged before and after the bit pattern and each of which has a run length that is longer than the minimum run length. The sync signal includes a specific code which indicates a position in the sector and which enables the DC control to be performed.
摘要翻译：数字数据的发送方法，可以高精度地再现信息数据。为了在包括多个同步帧的扇区中保留数字数据并顺序地发送，同步帧包括满足最小游程长度和最大游程长度的限制的同步信号和游程长度限制码，并且同步信号包括由游程长度比最大游程长度只有3T的游程长度的位模式构成的同步模式，以及排列在位模式之前和之后的游程长度更长的相加位模式比最小游程长。同步信号包括指示扇区中的位置并且能够执行DC控制的特定代码。

9. 发明授权

US5912869A Recording medium data transmission method and apparatus and data reproduction method and apparatus 失效
标题翻译：记录介质数据传输方法及装置及数据再现方法及装置
公开(公告)号：US5912869A
公开(公告)日：1999-06-15
申请号：US626551
申请日：1996-04-02
申请人： Shin-ichi Tanaka , Toshiyuki Shimada , Tadashi Kojima , Koichi Hirayama
发明人： Shin-ichi Tanaka , Toshiyuki Shimada , Tadashi Kojima , Koichi Hirayama
IPC分类号： G11B20/12 , G11B20/14 , G11B27/19 , G11B27/30 , H03M5/14 , H03M7/14 , H03M13/23 , H04B14/04 , H04L1/00 , H04L7/04 , H04L25/49 , G11B5/76 , G11B5/09
CPC分类号： H04L1/0057 , G11B20/1217 , G11B20/1426 , G11B27/19 , G11B27/3027 , H03M13/23 , H03M5/145 , H04L25/4908 , G11B2220/20 , H04L7/041
摘要： A data transmission apparatus for transmitting an original data has a converter for converting the original data to sequential data codes. The data code is formed by a combination of HIGH level binary codes and LOW level binary codes. The maximum length of a continuous binary codes of one level, such as HIGH level, in the data codes is limited to T.sub.max, e.g., to 14T, in which T is a unit length representing one binary code, and the minimum length of a continuous binary codes of one level, such as HIGH level, in the data codes is limited to T.sub.min, e.g., 3T. A generator generates a synchronization code. The synchronization code is formed by a combination of HIGH and LOW level binary codes. The synchronization code comprises an identifier having a continuous binary codes of one level, such as HIGH level, with a predetermined length 16T which is 2T greater than T.sub.max. An inserter inserts the synchronization code intermittently in the sequential data codes.
摘要翻译：用于发送原始数据的数据发送装置具有用于将原始数据转换为顺序数据代码的转换器。数据代码由高级二进制代码和低级二进制代码的组合形成。数据码中一个等级的连续二进制码（如高电平）的最大长度限制在Tmax，例如14T，其中T是表示一个二进制码的单位长度，连续的最小长度数据码中一级的二进制码（如高电平）被限制为Tmin，例如3T。生成器生成同步代码。同步码由高和低电平二进制码的组合形成。同步码包括具有一个等级的连续二进制码的标识符，例如高电平，具有比Tmax大2T的预定长度16T。插入器在顺序数据代码中间歇地插入同步代码。

10. 发明授权

US5978958A Data transmission system, data recording and reproducing apparatus and recording medium each having data structure of error correcting code 失效
标题翻译：数据传输系统，数据记录和再现装置以及各自具有纠错码的数据结构的记录介质
公开(公告)号：US5978958A
公开(公告)日：1999-11-02
申请号：US901527
申请日：1997-07-28
申请人： Shin-ichi Tanaka , Masatoshi Shimbo , Shinya Yamada , Tadashi Kojima , Koichi Hirayama
发明人： Shin-ichi Tanaka , Masatoshi Shimbo , Shinya Yamada , Tadashi Kojima , Koichi Hirayama
IPC分类号： G06F11/00 , G11C29/00 , H03M13/00
CPC分类号： H03M13/2906 , G11B20/1217 , G11B20/1833 , H04L1/0057 , G11B2020/1232 , G11B2020/1267 , G11B2020/1294 , G11B2020/1853 , G11B2220/216 , G11B2220/2537
摘要： A data transmission system for transmitting information data with a parity of an error correcting code for correcting an error in the information data. A read-out controller controls a transmitter to transmit information data and a parity so that each data component of the information data obtained by dividing the information data of one data block area into a plurality of data components and each parity component of the parity obtained by dividing the parity of one block area into a plurality of parity components are transmitted at intervals of each sector having a sector address. The sector is defined as an data area obtained by dividing one data block area of a predetermined data amount into a plurality of sectors each having an identical data amount.
摘要翻译：一种数据传输系统，用于发送具有用于校正信息数据中的错误的纠错码的奇偶校验的信息数据。读出控制器控制发送器发送信息数据和奇偶校验，使得通过将一个数据块区域的信息数据划分成多个数据分量和奇偶校验分配的每个奇偶校验分量获得的信息数据的每个数据分量由将具有扇区地址的每个扇区的间隔以一个块区的奇偶校验分为多个奇偶分量。该扇区被定义为通过将预定数据量的一个数据块区划分成具有相同数据量的多个扇区而获得的数据区。

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