专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20110319163A1 GAME SYSTEM, GAME EXECUTION APPARATUS, AND PORTABLE STORAGE MEDIUM 有权
标题翻译：游戏系统，游戏执行装置和便携式存储媒体
公开(公告)号：US20110319163A1
公开(公告)日：2011-12-29
申请号：US13224428
申请日：2011-09-02
申请人： TOSHIHISA NAKANO , Yuichi Futa , Kaoru Yokota , Motoji Ohmori
发明人： TOSHIHISA NAKANO , Yuichi Futa , Kaoru Yokota , Motoji Ohmori
IPC分类号： A63F13/00
CPC分类号： A63F13/95 , A63F13/10 , A63F13/92 , A63F2300/203 , A63F2300/204 , A63F2300/206 , A63F2300/66 , G07F17/32
摘要： A game system in which game software produced to be used in stationary game machines can be used in portable game machines. The game system includes a stationary game machine, a portable game machine, and a memory card connectable to both the stationary and portable game machines. Image data contained in game software produced for the stationary game machine shows an image in the form of free-form surface. The stationary game machine converts the image data to show the image in the form of a polygon according to processing performance of the portable game machine, and stores the converted image data and a game program executable by the portable game machine onto the memory card. The portable game machine executes the game program stored on the memory card, and generates and displays a display image from the image data stored on the memory card.
摘要翻译：可以在便携式游戏机中使用生产用于固定式游戏机的游戏软件的游戏系统。游戏系统包括固定式游戏机，便携式游戏机和可连接到固定式和便携式游戏机两者的存储卡。为固定游戏机制作的游戏软件中包含的图像数据以自由曲面的形式显示图像。固定游戏机根据便携式游戏机的处理性能，将图像数据转换为多边形的图像，并将转换的图像数据和便携式游戏机可执行的游戏程序存储到存储卡上。便携式游戏机执行存储在存储卡上的游戏程序，并从存储在存储卡上的图像数据中生成并显示显示图像。

42. 发明授权

US07898570B2 Digital camera system with means for restricting image acquisition 有权
标题翻译：数码相机系统，具有限制图像采集的手段
公开(公告)号：US07898570B2
公开(公告)日：2011-03-01
申请号：US10578896
申请日：2004-11-16
申请人： Kaoru Yokota , Yuichi Futa , Toshihisa Nakano , Motoji Ohmori , Shuichi Ohki
发明人： Kaoru Yokota , Yuichi Futa , Toshihisa Nakano , Motoji Ohmori , Shuichi Ohki
IPC分类号： H04N5/225
CPC分类号： H04N1/00127 , H04N1/00342 , H04N1/00912 , H04N1/00925 , H04N2101/00 , H04N2201/0074 , H04N2201/3242 , H04N2201/3278
摘要： A digital camera comprising: an imaging unit operable to generate an image by photographing an object; a receiving unit operable to receive information relating to image processing from one or more transmission devices; a judging unit operable to judge whether the image is to be output or not, based on the information received by the receiving unit; and an output unit operable to, in accordance with the judgment made by the judging unit, output the image to a memory, or discard the image, where the memory is readable by the digital camera or an external device.
摘要翻译：一种数字照相机，包括：成像单元，可操作以通过拍摄对象来生成图像; 接收单元，用于从一个或多个传输设备接收与图像处理有关的信息; 判断单元，用于基于由所述接收单元接收的信息来判断所述图像是否被输出; 以及输出单元，其可操作以根据由所述判断单元进行的判断将所述图像输出到存储器，或者丢弃所述图像，其中所述存储器可由所述数字照相机或外部设备读取。

43. 发明申请

US20100195822A1 PROGRAM CONVERTER, ENCRYPTING DEVICE, AND ENCRYPTING METHOD 有权
标题翻译：程序转换器，加密设备和加密方法
公开(公告)号：US20100195822A1
公开(公告)日：2010-08-05
申请号：US12756440
申请日：2010-04-08
申请人： Kaoru Yokota , Motoji Ohmori , Yuichi Futa
发明人： Kaoru Yokota , Motoji Ohmori , Yuichi Futa
IPC分类号： H04L9/28
CPC分类号： H04L9/0662 , H04L2209/12
摘要： A program converter (1) converts a program (P) which performs arithmetic addition processing to execute encryption, into a converted program (tP) which performs processing equivalent to the processing of the program (P). The program converter (1) includes: a key data extraction unit (10) which extracts key data from the program (P); an addition table generation unit (11) which generates an addition table from the extracted key data; a conversion table extraction unit (12) which extracts a conversion table from the program (P); a table merger unit (13) which generates a merger table by merging the generated addition table and the extracted conversion table; a random number generation unit (14) which generates a random number; a table randomization unit (15) which generates a randomized merger table by randomizing the merger table using the generated random number; and a converted-program generation unit (16) which generates the converted program (tP) according to the generated randomized merger table.
摘要翻译：程序转换器（1）将执行加法处理的程序（P）转换为执行与程序（P）的处理相当的处理的转换程序（tP）。程序转换器（1）包括：从程序（P）提取密钥数据的密钥数据提取单元（10）; 附加表生成单元，从所提取的密钥数据生成加法表; 转换表提取单元，从程序（P）中提取转换表; 表合并单元，其通过将所生成的加法表与所提取的转换表合并来生成合并表; 产生随机数的随机数生成单元（14）; 表格随机化单元，其通过使用所生成的随机数随机化所述合并表来生成随机化合并表; 以及根据生成的随机合并表生成转换程序（tP）的转换程序生成单元（16）。

44. 发明授权

US07739504B2 Signature generation apparatus and signature verification apparatus 有权
标题翻译：签名生成装置和签名验证装置
公开(公告)号：US07739504B2
公开(公告)日：2010-06-15
申请号：US11578432
申请日：2006-03-14
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04L9/30
CPC分类号： H04L9/3255 , H04L2209/68 , H04L2209/80
摘要： A signature generation apparatus and a signature verification apparatus which can prevent the occurrence of norm zero vector forgery attack. The signature generation apparatus (110) includes a signature generation unit (114) which generates signature data (S) for a message (m) using a private key stored in a private key storage unit (112), and converts the format of the signature data (S) so that the first sub-element of the N sub-elements in the signature data (S) indicates 0 without changing the norm of the signature data (S). The signature verification apparatus (120) includes a signature verification unit (124) which judges whether or not the first sub-element of the N sub-elements included in the signature data (S) indicates 0, and determines the signature data (S) as unauthorized data when judging that it is not 0.
摘要翻译：签名生成装置和签名验证装置，其能够防止零向量伪造攻击的发生。签名生成装置（110）具有使用存储在专用密钥存储部（112）中的专用密钥来生成消息（m）的签名数据（S）的签名生成部（114），并将签名的格式数据（S），使得签名数据（S）中的N个子元素的第一子元素指示0而不改变签名数据（S）的范围。签名验证装置（120）包括签名验证单元（124），其判断包括在签名数据（S）中的N个子元素的第一子元素是否指示0，并且确定签名数据（S）作为未经授权的数据，当判断为不为0时。

45. 发明授权

US07549061B2 Unauthorized contents detection system 有权
标题翻译：未经授权的内容检测系统
公开(公告)号：US07549061B2
公开(公告)日：2009-06-16
申请号：US10593561
申请日：2005-03-24
申请人： Masao Nonaka , Yuichi Futa , Toshihisa Nakano , Kaoru Yokota , Motoji Ohmori , Masaya Miyazaki , Masaya Yamamoto , Kaoru Murase , Senichi Onoda
发明人： Masao Nonaka , Yuichi Futa , Toshihisa Nakano , Kaoru Yokota , Motoji Ohmori , Masaya Miyazaki , Masaya Yamamoto , Kaoru Murase , Senichi Onoda
IPC分类号： H04L9/00 , H04K1/00 , G06F11/30 , G06F12/14 , H04L9/32 , G06F17/00
CPC分类号： H04L9/3247 , G06F21/10 , G06F21/6209 , G06F21/64 , G06F2221/0773 , H04L9/3236 , H04L2209/60 , Y10S707/99942
摘要： An executing device for conducting playback is high during the playback of contents. The executing device is equipped with a highly efficient processor and reduces the processing load involved in verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the executing device is capable of improving the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.
摘要翻译：在播放内容期间，用于进行播放的执行装置很高。执行装置配备有高效的处理器，并且通过仅使用构成在DVD上记录的加密内容的多个加密单位随机选择的预定数量的加密单元来验证，来降低验证所涉及的处理负担。此外，执行装置能够通过在每次执行验证时随机选择预定数量的加密单元来提高检测未授权内容的准确性。

46. 发明申请

US20090100264A1 COMMUNICATION DEVICE AND COMMUNICATION SYSTEM 审中-公开
标题翻译：通信设备和通信系统
公开(公告)号：US20090100264A1
公开(公告)日：2009-04-16
申请号：US12298579
申请日：2007-04-23
申请人： Yuichi Futa , Motoji Ohmori , Shingo Hasegawa , Shuji Isobe , Hiroki Shizuya
发明人： Yuichi Futa , Motoji Ohmori , Shingo Hasegawa , Shuji Isobe , Hiroki Shizuya
IPC分类号： H04L9/32 , H04L9/08
CPC分类号： H04L9/0844 , H04L9/3242 , H04L9/3273 , H04L2209/60
摘要： A communication device is secure against an impersonation attack as well. The communication device secretly communicates, with an external device, target data with use of a key shared with the external device. Without being known to a third party, the communication device generates a key shared with the external device using a scheme of which security is proved. Validity of the external device is determined by authentication with use of a key dependent function that is shared with the external device and is dependent on the shared key. If the external device is determined to be valid, for secretly communicating the target data, verification data for verifying validity of the target data is generated from the target data with use of the key dependent function.
摘要翻译：通信设备也是安全的，以防止模拟攻击。通信设备秘密地使用外部设备共享的密钥与外部设备通信目标数据。通信设备在不被第三方知道的情况下，使用证明了哪种安全性的方案来生成与外部设备共享的密钥。外部设备的有效性通过使用与外部设备共享的密钥相关功能的认证来确定，并且取决于共享密钥。如果外部设备被确定为有效，则秘密地传送目标数据，则使用密钥相关函数从目标数据生成用于验证目标数据的有效性的验证数据。

47. 发明申请

US20080089514A1 Signature Generation Device, Key Generation Device, and Signature Generation Method 有权
标题翻译：签名生成装置，密钥生成装置和签名生成方法
公开(公告)号：US20080089514A1
公开(公告)日：2008-04-17
申请号：US11795256
申请日：2006-01-17
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuka
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuka
IPC分类号： H04L9/30
CPC分类号： H04L9/14 , G06F9/30007 , H04L9/3066 , H04L9/3093 , H04L9/3247
摘要： There is provided a signature generation apparatus capable of preventing transcript attack on signature data. The signature generation apparatus for generating signature data for message data (i) acquires, according to a predetermined acquisition method, a private key, which is different from a private key used in a previous digital signature operation, from among a plurality of private keys generated using a key generation method of a signature scheme in which the plurality of private keys correspond to a single public key, and (ii) performs, using the acquired private key, a digital signature operation on the message data according to a signature method of the signature scheme to generate the signature data.
摘要翻译：提供了能够防止对签名数据的转录攻击的签名生成装置。用于生成消息数据的签名数据的签名生成装置（i）根据预定的获取方法从生成的多个私钥中获取与先前的数字签名操作中使用的私钥不同的私钥使用其中所述多个私钥对应于单个公钥的签名方案的密钥生成方法，以及（ii）使用所获取的私钥对所述消息数据执行数字签名操作，所述签名方法根据所述签名方法签名方案生成签名数据。

48. 发明申请

US20080034442A1 Unauthorized contents detection system 有权
公开(公告)号：US20080034442A1
公开(公告)日：2008-02-07
申请号：US11878734
申请日：2007-07-26
申请人： Masao Nonaka , Yuichi Futa , Toshihisa Nakano , Kaoru Yokota , Motoji Ohmori , Masaya Miyazaki , Masaya Yamamoto , Kaoru Murase , Senichi Onoda
发明人： Masao Nonaka , Yuichi Futa , Toshihisa Nakano , Kaoru Yokota , Motoji Ohmori , Masaya Miyazaki , Masaya Yamamoto , Kaoru Murase , Senichi Onoda
IPC分类号： H04L9/32
CPC分类号： H04L9/3247 , G06F21/10 , G06F21/6209 , G06F21/64 , G06F2221/0773 , H04L9/3236 , H04L2209/60 , Y10S707/99942
摘要： Processing load on an executing device for conducting playback is high during the playback of contents since the executing device performs verification of the contents validity in parallel with the contents playback, and therefore the executing device has to be equipped with a highly efficient processor. The present invention reduces the processing load involved in the verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units consisting encrypted contents recorded on the DVD. In addition, the present invention is capable of improving the accuracy of detecting unauthorized contents to some extent by randomly selecting a predetermined number of encrypted units every time the verification is performed.

49. 发明申请

US20070256141A1 Content distribution system 有权
标题翻译：内容分发系统
公开(公告)号：US20070256141A1
公开(公告)日：2007-11-01
申请号：US11790609
申请日：2007-04-26
申请人： Toshihisa Nakano , Masao Nonaka , Yuichi Futa , Motoji Ohmori , Ryo Nojima , Kazukuni Kobara , Hideki Imai
发明人： Toshihisa Nakano , Masao Nonaka , Yuichi Futa , Motoji Ohmori , Ryo Nojima , Kazukuni Kobara , Hideki Imai
IPC分类号： H04L9/32
CPC分类号： G06F21/16 , G06F21/10 , H04L9/14 , H04L9/3247 , H04L9/3263 , H04L2209/608
摘要： A content distribution system for transferring contents between transmission device and reception device. The transmission device includes: key obtaining unit that obtains, from reception device, public keys and public key identifiers; watermark embedding unit that embeds a different public key identifier, as electronic watermark, into each of contents that are identical in substance; an encryption unit that encrypts contents using public keys to generate encrypted contents; and transmission unit that transmits encrypted contents to reception device. The reception device includes: key storage unit storing public keys, public key identifiers, and a private key that makes a pair with one of the public keys; key transmission unit that transmits public keys and public key identifiers to the transmission device; content receiving unit that receives encrypted contents from transmission device; and decryption unit that obtains a content from the received encrypted contents, using the private key.
摘要翻译：一种用于在传输设备和接收设备之间传送内容的内容分发系统。传输设备包括：密钥获取单元，从接收设备获取公钥和公开密钥标识符; 水印嵌入单元，将不同的公钥标识符作为电子水印嵌入到实质上相同的每个内容中; 加密单元，其使用公共密钥对内容进行加密以生成加密内容; 以及将加密内容发送到接收装置的发送单元。接收装置包括：存储公共密钥的密钥存储单元，公开密钥标识符和与公钥之一成对的专用密钥; 密钥发送单元，向发送装置发送公开密钥和公开密钥标识符; 从发送装置接收加密内容的内容接收单元; 以及使用所述私钥从所接收的加密内容中获取内容的解密单元。

50. 发明申请

US20070121933A1 Information transfer system, encryption device, and decryption device 有权
标题翻译：信息传输系统，加密装置和解密装置
公开(公告)号：US20070121933A1
公开(公告)日：2007-05-31
申请号：US10572457
申请日：2004-10-01
申请人： Yuichi Futa , Motoji Ohmori
发明人： Yuichi Futa , Motoji Ohmori
IPC分类号： H04K3/00
CPC分类号： H04L9/3066 , G06F7/725 , H04L2209/08 , H04L2209/56
摘要： To provide a content delivery system which enables a ciphertext to be reduced in size when using the ElGamal cipher. A content delivery device performs elliptic curve encryption on a content key, generates an encrypted content key that includes an x coordinate of an elliptic curve point obtained by the elliptic curve encryption, and outputs the encrypted content key. A content reception device receives the encrypted content key, and calculates a y coordinate of the elliptic curve point using the x coordinate included in the encrypted content key. The content reception device then performs elliptic curve decryption using the elliptic curve point and other information included in the encrypted content key, to generate a decrypted content key.
摘要翻译：提供一种内容传送系统，该系统能够在使用ElGamal密码时使密文大小减小。内容发送装置对内容密钥执行椭圆曲线加密，生成包含通过椭圆曲线加密获得的椭圆曲线点的x坐标的加密内容密钥，并输出加密的内容密钥。内容接收装置接收加密的内容密钥，并使用包含在加密的内容密钥中的x坐标来计算椭圆曲线点的y坐标。然后，内容接收装置使用椭圆曲线点和包括在加密内容密钥中的其他信息来执行椭圆曲线解密，以产生解密的内容密钥。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式