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1. 发明授权

US06741723B2 Digital watermark embedding method and apparatus, and digital watermark 失效
公开(公告)号：US06741723B2
公开(公告)日：2004-05-25
申请号：US10327072
申请日：2002-12-24
申请人： Tomoo Yamakage , Hirofumi Muratani , Hisashi Yamada , Toru Kambayashi , Shinichiro Koto
发明人： Tomoo Yamakage , Hirofumi Muratani , Hisashi Yamada , Toru Kambayashi , Shinichiro Koto
IPC分类号： H04K100
CPC分类号： H04N7/08 , G06T1/005 , G06T1/0064 , G06T2201/0052 , G06T2201/0065 , G06T2201/0083 , H04N1/32149 , H04N1/32154 , H04N1/32165 , H04N1/32187 , H04N1/32203 , H04N1/32229 , H04N5/913 , H04N7/025 , H04N7/035 , H04N2005/91335 , H04N2201/3233 , H04N2201/327
摘要： A specific frequency extraction unit extracts a specific frequency component signal from an input image signal, a phase controller and amplitude controller control at least one of the phase and amplitude of the specific frequency component signal in accordance with watermark information, and a watermark information superposition unit superposes the specific frequency component signal on the input image signal to generate an image signal embedded with the watermark information.

2. 发明授权

US06952486B2 Digital watermark embedding method and apparatus, and digital watermark 失效
标题翻译：数字水印嵌入方法和装置，以及数字水印
公开(公告)号：US06952486B2
公开(公告)日：2005-10-04
申请号：US10815868
申请日：2004-04-02
申请人： Tomoo Yamakage , Hirofumi Muratani , Hisashi Yamada , Toru Kambayashi , Shinichiro Koto
发明人： Tomoo Yamakage , Hirofumi Muratani , Hisashi Yamada , Toru Kambayashi , Shinichiro Koto
IPC分类号： G06T1/00 , H04N1/32 , H04N1/387 , H04N5/913 , H04N7/025 , H04N7/035 , H04N7/08 , H04N7/081 , H04K1/00
CPC分类号： H04N7/08 , G06T1/005 , G06T1/0064 , G06T2201/0052 , G06T2201/0065 , G06T2201/0083 , H04N1/32149 , H04N1/32154 , H04N1/32165 , H04N1/32187 , H04N1/32203 , H04N1/32229 , H04N5/913 , H04N7/025 , H04N7/035 , H04N2005/91335 , H04N2201/3233 , H04N2201/327
摘要： A specific frequency extraction unit extracts a specific frequency component signal from an input image signal, a phase controller and amplitude controller control at least one of the phase and amplitude of the specific frequency component signal in accordance with watermark information, and a watermark information superposition unit superposes the specific frequency component signal on the input image signal to generate an image signal embedded with the watermark information.
摘要翻译：特定频率提取单元从输入图像信号中提取特定频率分量信号，相位控制器和幅度控制器根据水印信息来控制特定频率分量信号的相位和幅度中的至少一个，以及水印信息叠加单元将特定频率分量信号叠加在输入图像信号上以产生嵌入水印信息的图像信号。

3. 发明授权

US07578000B2 Rendering device, recording device, copy control method, and program 失效
标题翻译：渲染装置，记录装置，复印控制方法和程序
公开(公告)号：US07578000B2
公开(公告)日：2009-08-18
申请号：US10247647
申请日：2002-09-20
申请人： Toru Kambayashi , Tomoo Yamakage , Hisashi Yamada , Hirofumi Muratani
发明人： Toru Kambayashi , Tomoo Yamakage , Hisashi Yamada , Hirofumi Muratani
IPC分类号： G06F7/00
CPC分类号： G11B19/122 , G06F21/10 , G06F2221/0737 , G06T1/0071 , G06T2201/0064 , G11B20/00086 , G11B20/00768 , G11B20/00884 , H04N5/913 , H04N2005/91328 , H04N2005/91335
摘要： A rendering device to render a contents data comprises a reader, an information acquisition unit and a controller. The reader reads the contents data. The information acquisition unit acquires a copy control information. The controller controls rendering of the contents data while updating the acquired copy control information.
摘要翻译：呈现内容数据的呈现装置包括读取器，信息获取单元和控制器。读者读取内容数据。信息获取单元获取复制控制信息。控制器在更新获取的复制控制信息的同时控制内容数据的呈现。

4. 发明授权

US07123744B2 Digital watermark embedding method, digital watermark embedding apparatus, digital watermark detecting method, and digital watermark detecting apparatus 失效
公开(公告)号：US07123744B2
公开(公告)日：2006-10-17
申请号：US10305192
申请日：2002-11-27
申请人： Hirofumi Muratani , Tooru Kambayashi , Tomoo Yamakage , Shinichiro Koto , Tomoya Kodama , Hisashi Yamada
发明人： Hirofumi Muratani , Tooru Kambayashi , Tomoo Yamakage , Shinichiro Koto , Tomoya Kodama , Hisashi Yamada
IPC分类号： G06K9/00
CPC分类号： G06T1/0064 , G06T1/005 , G06T2201/0052 , G06T2201/0065 , G06T2201/0083
摘要： A digital watermark embedding apparatus comprises a digital watermark generating unit which transforms embedding target contents by using a filter having a coefficient with a periodic number sequence to generate a digital watermark, and an embedding unit which superposes the digital watermark on the embedding target contents to generate watermark embedded contents.

5. 发明授权

US6163799A Communication navigation system which easily finds person who is interested in the same topic 失效
标题翻译：通信导航系统，轻松找到对同一主题感兴趣的人
公开(公告)号：US6163799A
公开(公告)日：2000-12-19
申请号：US50073
申请日：1998-03-30
申请人： Toru Kambayashi , Ichiro Tomoda , Yasuhiko Shimomura , Takashi Ida , Hirofumi Muratani , Toshiya Takahashi , Masafumi Kondo , Satoshi Ito , Shuichi Tsujimoto , Akira Morishita , Yoshihiro Ohmori
发明人： Toru Kambayashi , Ichiro Tomoda , Yasuhiko Shimomura , Takashi Ida , Hirofumi Muratani , Toshiya Takahashi , Masafumi Kondo , Satoshi Ito , Shuichi Tsujimoto , Akira Morishita , Yoshihiro Ohmori
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： G06F17/30899 , G06F17/30067
摘要： A navigation communication system in which a plurality of clients access information stored in a server via a network, having a personal information control section provided in the server and controls the personal information of the users of the clients which access the same information and a personal information display section provided in the client and displays the personal information controlled by the personal information control section, a selector for selecting one of the personal information displayed, and a communication application section for communicating with a client corresponding to the selected personal information.
摘要翻译：一种导航通信系统，其中多个客户端经由网络访问存储在服务器中的信息，具有设置在服务器中的个人信息控制部分，并且控制访问相同信息的客户端的用户的个人信息和个人信息显示由个人信息控制部分控制的个人信息，用于选择显示的个人信息之一的选择器和用于与所选择的个人信息相对应的客户端进行通信的通信应用部分。

6. 发明授权

US5832229A Multicast communication system allows user to join or leave multicast groups and specify communication quality using easily comprehensible and operable user terminal display 失效
标题翻译：组播通信系统允许用户使用易于理解和可操作的用户终端显示来加入或离开多播组并指定通信质量
公开(公告)号：US5832229A
公开(公告)日：1998-11-03
申请号：US687627
申请日：1996-07-26
申请人： Ichiro Tomoda , Toru Kambayashi , Satoshi Ito , Takashi Ida , Yasuhiko Shimomura , Toshiya Takahashi , Hirofumi Muratani , Masafumi Kondo
发明人： Ichiro Tomoda , Toru Kambayashi , Satoshi Ito , Takashi Ida , Yasuhiko Shimomura , Toshiya Takahashi , Hirofumi Muratani , Masafumi Kondo
IPC分类号： H04N7/10 , G09G5/00 , G09G5/08 , H04L12/18 , H04L29/06 , G06F13/00
CPC分类号： H04L65/4076 , H04L12/185 , H04L29/06 , H04L29/06027
摘要： The multicast communication scheme which can enable a user to easily comprehend the multicast groups existing on the network, easily carry out an operation to join a desired multicast group, and easily specify a desired communication quality. At each user terminal, a virtual space with a plurality of regions defined therein in correspondence to a plurality of multicast groups is displayed on a screen, while an information indicating a range of each region in the virtual space is stored in correspondence to an address information for a corresponding multicast group. A desired position in the virtual space on the screen is specified by an input device, and joining/leaving to/from multicast groups is controlled by using the address information stored in correspondence to a region in the virtual space which contains the desired position. The display on the screen may include a plurality of zones defined within each region in correspondence to a plurality of different communication qualities, so that a communication quality of a multicast communication to be received can be controlled according to a zone within a region in the virtual space which contains the desired position.
摘要翻译：可以使得用户能够容易地理解存在于网络上的多播组的组播通信方案容易地执行加入所需多播组的操作，并且容易地指定期望的通信质量。在每个用户终端处，在屏幕上显示具有与多个多播组对应地定义的多个区域的虚拟空间，同时根据地址信息存储指示虚拟空间中的每个区域的范围的信息为相应的组播组。屏幕上的虚拟空间中的期望位置由输入设备指定，并且通过使用与包含期望位置的虚拟空间中的区域相对应地存储的地址信息来控制来自/来自多播组的加入/离开。屏幕上的显示可以包括对应于多个不同通信质量在每个区域内定义的多个区域，从而可以根据虚拟的区域内的区域来控制要接收的多播通信的通信质量包含所需位置的空间。

7. 发明申请

US20100049777A1 REPRESENTATION CONVERTING APPARATUS, ARITHMETIC APPARATUS, REPRESENTATION CONVERTING METHOD, AND COMPUTER PROGRAM PRODUCT 失效
标题翻译：代表转换装置，算术装置，代表转换方法和计算机程序产品
公开(公告)号：US20100049777A1
公开(公告)日：2010-02-25
申请号：US12397648
申请日：2009-03-04
申请人： Tomoko Yonemura , Hirofumi Muratani , Kenji Ohkuma , Hanae Ikeda , Taichi Isogai , Kenichiro Furuta , Yoshikazu Hanatani
发明人： Tomoko Yonemura , Hirofumi Muratani , Kenji Ohkuma , Hanae Ikeda , Taichi Isogai , Kenichiro Furuta , Yoshikazu Hanatani
IPC分类号： G06F17/10
CPC分类号： G06F17/10
摘要： When converting an affine representation representing a 2r-th degree algebraic torus T2r(Fq) (r is a prime number, and q is an integer) to a projective representation representing a quadratic algebraic torus T2(Fq̂r), a representation converting apparatus acquires member (c0,c1, . . . ,cr−2), (ci is a member of a finite field Fq, where 0≦i≦r−2) of a 2r-th degree algebraic torus T2r(Fq) represented by the affine representation. The apparatus performs a multiplication operation on the acquired member. The multiplication operation is determined by a condition under which a member of a quadratic algebraic torus T2(Fq̂r) is included in the 2r-th degree algebraic torus T2r(Fq), a modulus and a base of a quadratic extension, and a modulus and a base of an r-th degree extension. The representation converting apparatus then performs an addition and subtraction operation determined by the condition, the moduli, and the bases.
摘要翻译：当代表二次代数圆环T2（Fqr）的投影表示转换代表二阶代数圆环T2r（Fq）（r是素数，q是整数）的仿射表示时，表示转换装置获取成员（c0，c1，...，cr-2），（ci是有限域Fq的成员，其中0和nlE; i＆nlE; r-2）由仿射表示的2r代数圆环T2r（Fq）表示。该装置对获取的成员进行乘法运算。乘法运算由二次代数圆环T2（Fqr）的成员包含在第二级代数圆环T2r（Fq）中的条件，二次扩展的模数和基数以及模数和一个r度延伸的基础。然后，表示转换装置执行由条件，模数和基数确定的加法和减法运算。

8. 发明授权

US07613320B2 Digital watermark embedding apparatus and method, and digital watermark analysis apparatus, method and program 失效
标题翻译：数字水印嵌入装置及方法，数字水印分析装置，方法与程序
公开(公告)号：US07613320B2
公开(公告)日：2009-11-03
申请号：US12246234
申请日：2008-10-06
申请人： Hirofumi Muratani
发明人： Hirofumi Muratani
IPC分类号： G06K9/00
CPC分类号： H04H20/31 , G06T1/005 , G06T1/0071 , G06T2201/0063 , H04N1/32149 , H04N7/1675 , H04N21/8358 , H04N2201/3205 , H04N2201/3236
摘要： A digital watermark embedding apparatus comprises below units. A first generation unit generates a plurality of symbol sequences each of which includes a plurality of symbols including ranks, each of the ranks being uniquely numbered among each of the symbol sequences, each of the symbol sequences uniquely corresponding to each of a plurality of identification information items to be embedded as digital watermark information into each of copies of digital contents. A second generation generates a plurality of to-be-embedded codes corresponding to each of the symbols in each of the symbol sequences. An embedding unit embeds the to-be-embedded codes in each of the copies.
摘要翻译：数字水印嵌入装置包括下面的单元。第一代单元产生多个符号序列，每个符号序列包括多个符号，包括等级，每个符号序列中的每一个都是唯一编号的，每个符号序列唯一地对应于多个识别信息要作为数字水印信息嵌入数字内容的每个副本的项目。第二代产生对应于每个符号序列中的每个符号的多个待嵌入代码。嵌入单元将每个副本中的嵌入代码嵌入。

9. 发明授权

US06985602B2 Electronic watermark detection apparatus and method 失效
公开(公告)号：US06985602B2
公开(公告)日：2006-01-10
申请号：US10927166
申请日：2004-08-27
申请人： Hirofumi Muratani
发明人： Hirofumi Muratani
IPC分类号： G06K9/00
CPC分类号： G06T1/0028 , G06K9/6203 , G06T1/0057 , G06T1/0064 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0081 , G06T2201/0083
摘要： Electronic watermarks in digital documents can be detected, even if the content of the digital documents has been subjected to distortion or other attempts to hide or destroy the watermarks. One method involves inputting the distorted image and comparison information, the comparison information including at least one of the original image or information used for embedding the electronic watermark; dividing a domain of the original image into a plurality of patches, based on the comparison information; inputting affine parameters of a predetermined patch from among the patches in the original image; extracting a patch candidate from the distorted image; using a predetermined electronic watermark detection method, judging whether the patch candidate in the distorted image adequately correlates with a neighboring patch in the original image; when the judging indicates an adequate correlation, outputting a part of the electronic watermark. Another method involves determining a correspondence between patches in an original image having n patches, and patches in a distorted image; more specifically, the method involves inputting predetermining affine parameters of one of the plurality of predetermined patches; setting the input predetermining affine parameters of the one of the plurality of patch as initial affine parameters for investigating a new patch; and investigating a correspondence of the new patch of the distorted image and the new patch of the original image by slightly modifying the set input predetermining affine parameters.

10. 发明申请

US20050086484A1 Identification information embedding apparatus, analysis apparatus, embedding method, analysis method and program 审中-公开
标题翻译：识别信息嵌入装置，分析装置，嵌入方法，分析方法和程序
公开(公告)号：US20050086484A1
公开(公告)日：2005-04-21
申请号：US10935400
申请日：2004-09-08
申请人： Hirofumi Muratani
发明人： Hirofumi Muratani
IPC分类号： H04N7/08 , G06F7/72 , G06T1/00 , G09C5/00 , G11B20/00 , H04L9/30 , H04N1/32 , H04N1/387 , H04N7/081 , H04L9/00
CPC分类号： G06T1/005 , G06F7/724 , G06T2201/0063 , G11B20/00086 , H04L9/3026 , H04L9/3073 , H04L2209/60 , H04L2209/608 , H04N1/32144 , H04N2201/323 , H04N2201/3236
摘要： An identification information embedding apparatus for embedding identification information into an object, comprises a first generator which generates, based on the identification information, an identification information polynomial corresponding to the identification information, an acquisition unit configured to acquire a plurality of remainder polynomials by dividing the identification information polynomial by each of a plurality of relatively prime polynomials, the relatively prime polynomials being pairwise relatively prime, an order of each of the relatively prime polynomials being limited, a second generator which generates, based on the remainder polynomials, a plurality of integers corresponding to the remainder polynomials, respectively, a third generator which generates a plurality of component codes corresponding to the integers, respectively, a fourth generator which generates a collusion-secure code by arranging the component codes in series, and an embedding unit configured to embed the collusion-secure code into the object.
摘要翻译：一种用于将识别信息嵌入到对象中的识别信息嵌入装置，包括：第一生成器，其基于所述识别信息生成与所述识别信息相对应的识别信息多项式;获取单元，被配置为通过将所述多个余数多项式除以通过多个相对主项多项式中的每一个的识别信息多项式，相对主项多项式成对相对素数，每个相对主多项式的顺序被限制;第二生成器，其基于余数多项式生成多个整数分别对应于余数多项式的第三生成器，分别生成与整数相对应的多个分量代码，第四生成器，其通过串联排列分量代码来生成共谋安全代码;嵌入单元confi 用于将共谋安全代码嵌入到对象中。

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