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1. 发明公开

EP0469821A2 Switch mode power supply 失效
标题翻译： Schaltnetzteil。
公开(公告)号：EP0469821A2
公开(公告)日：1992-02-05
申请号：EP91306914.2
申请日：1991-07-29
申请人： International Business Machines Corporation
发明人： Kobayashi, Masaki , Mori, Masaki , Morimoto, Norishige
IPC分类号： H02M3/335 , H02M3/338 , H02M3/28 , H04N3/185
CPC分类号： H04N3/185 , H02M3/33507
摘要： A switch mode power supply comprises a drive circuit (7) for generating first and second switching signals in response to first and second input signals of different frequencies, and a switching regulator (9) for generating one or more regulated power supply output voltages in response to the first and second switching signals. The power supply further comprises a control circuit (3,4,6,10,15) for determining, in response to the first and second input pulse signals, a first frequency range containing the frequencies of the first and second input signals when respectively multiplied by first and second integer multiples that is narrower than a second frequency range containing the frequencies of the first and second input signals when each multiplied by a common integer multiple. The control circuit (3,4,6,10,15) configures the drive circuit (7) to generate the first switching signal at a frequency which is the first integer multiple of the frequency of the first input pulse signal and the second switching signal at a frequency which is the second integer multiple of the frequency of the second input pulse signal in such a manner that the frequencies of the first and second switching signals are within the first range.
摘要翻译：开关模式电源包括用于响应于不同频率的第一和第二输入信号产生第一和第二开关信号的驱动电路（7）和用于响应地产生一个或多个稳压电源输出电压的开关调节器（9）到第一和第二开关信号。电源还包括控制电路（3,4,6,10,15），用于响应于第一和第二输入脉冲信号确定分别乘以第一和第二输入信号的频率的第一频率范围通过第一和第二整数倍，其比每当乘以公共整数倍时包含第一和第二输入信号的频率的第二频率范围窄。控制电路（3,4,6,10,15）将驱动电路（7）配置为以第一输入脉冲信号和第二切换信号的频率的第一整数倍的频率产生第一切换信号以第二输入脉冲信号的频率的第二整数倍的频率，使得第一和第二开关信号的频率在第一范围内。

2. 发明授权

EP0851392B1 Data hiding and extraction method 失效
标题翻译：一种用于数据的隐藏和提取方法
公开(公告)号：EP0851392B1
公开(公告)日：2005-08-17
申请号：EP97309940.1
申请日：1997-12-10
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Shimizu, Shuichi , Koide, Akio , Morimoto, Norishige , Kobayashi, Seiji
IPC分类号： G06T11/00
CPC分类号： G06T1/005 , G06T1/0028 , G06T2201/0065 , G06T2201/0083 , G06T2201/0202 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N2201/3233 , H04N2201/327

3. 发明公开

EP0851392A3 Data hiding and extraction method 失效
标题翻译：一种用于数据的隐藏和提取方法
公开(公告)号：EP0851392A3
公开(公告)日：2000-02-02
申请号：EP97309940.1
申请日：1997-12-10
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Shimizu, Shuichi , Koide, Akio , Morimoto, Norishige , Kobayashi, Seiji
IPC分类号： G06T11/00
CPC分类号： G06T1/005 , G06T1/0028 , G06T2201/0065 , G06T2201/0083 , G06T2201/0202 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N2201/3233 , H04N2201/327
摘要： A data hiding method for embedding message data into media data comprising the steps of obtaining a secondary key by inputting a key having a predetermined value to a specified function; determining hiding positions in which the message data will be embedded according to the obtained secondary key, and selecting one of plural hiding functions according to the secondary key so that the selected hiding function is used for each of the determined hiding positions; and embedding the message data into each of the determined hiding positions according to the selected hiding function corresponding to the hiding position.

4. 发明授权

EP0469821B1 Switch mode power supply 失效
标题翻译：开关电源。
公开(公告)号：EP0469821B1
公开(公告)日：1994-11-30
申请号：EP91306914.2
申请日：1991-07-29
申请人： International Business Machines Corporation
发明人： Kobayashi, Masaki , Mori, Masaki , Morimoto, Norishige
IPC分类号： H02M3/335 , H02M3/338 , H02M3/28 , H04N3/185
CPC分类号： H04N3/185 , H02M3/33507

5. 发明公开

EP0851392A2 Data hiding and extraction method 失效
标题翻译： Verfahren zur Verstecken und Extrahierung von Daten
公开(公告)号：EP0851392A2
公开(公告)日：1998-07-01
申请号：EP97309940.1
申请日：1997-12-10
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Shimizu, Shuichi , Koide, Akio , Morimoto, Norishige , Kobayashi, Seiji
IPC分类号： G06T11/00
CPC分类号： G06T1/005 , G06T1/0028 , G06T2201/0065 , G06T2201/0083 , G06T2201/0202 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N2201/3233 , H04N2201/327
摘要： A data hiding method for embedding message data into media data comprising the steps of obtaining a secondary key by inputting a key having a predetermined value to a specified function; determining hiding positions in which the message data will be embedded according to the obtained secondary key, and selecting one of plural hiding functions according to the secondary key so that the selected hiding function is used for each of the determined hiding positions; and embedding the message data into each of the determined hiding positions according to the selected hiding function corresponding to the hiding position.
摘要翻译：一种用于将消息数据嵌入到媒体数据中的数据隐藏方法，包括以下步骤：通过将具有预定值的密钥输入到指定的功能来获得次级密钥; 根据获得的次级密钥确定消息数据将被嵌入的隐藏位置，以及根据次要密钥选择多个隐藏功能中的一个，使得所选择的隐藏功能用于所确定的每个隐藏位置; 以及根据与所述隐藏位置相对应的所选择的隐藏功能，将所述消息数据嵌入到所确定的隐藏位置中的每一个中。

6. 发明公开

EP0845758A2 Embedding authentication information into an image 失效
标题翻译：维尔法罕zum Einbringen von Authentifizierungsinformation在Bilder
公开(公告)号：EP0845758A2
公开(公告)日：1998-06-03
申请号：EP97309192.9
申请日：1997-11-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Shimizu, Shuichi , Numao, Masayuki , Morimoto, Norishige
IPC分类号： G06T11/00
CPC分类号： G06T1/0028 , G06T2201/0065 , H04N1/32144 , H04N2101/00 , H04N2201/3233 , H04N2201/3236 , H04N2201/327 , H04N2201/3281
摘要： A digital camera has means to authentication information into a photographed image for detecting the identity of the image. The authentication information supplied integrally with the image data, so that, the verifier can verify the image data without saving the authentication information. This is achieved by having a region dividing unit 24 for dividing the image into a first image region and a second image region in response to the digital signal, authentication information generating means 29 for generating authentication information from data in the first image region, encrypting means 30 for encrypting the authentication information, hiding means 25 for embedding the encrypted authentication information into the second image region by operating the data in the second image region, and region combining means 26 for combining the first image region in the image with the second image region in which the authentication information is embedded.
摘要翻译：数码相机具有将信息认证成拍摄图像的手段，用于检测图像的身份。与图像数据一体提供的认证信息，使得验证者可以在不保存认证信息的情况下验证图像数据。这是通过具有区域划分单元24，用于响应于数字信号将图像划分成第一图像区域和第二图像区域的，用于从第一图像区域中的数据生成认证信息的认证信息生成装置29，加密装置 30，用于加密认证信息;隐藏装置25，用于通过操作第二图像区域中的数据将加密的认证信息嵌入第二图像区域;以及区域组合装置26，用于将图像中的第一图像区域与第二图像区域其中嵌入了认证信息。

7. 发明公开

EP0845757A2 Data hiding method and data extracting method 失效
标题翻译：一种用于数据和用于数据Verdeckerung方法的提取处理
公开(公告)号：EP0845757A2
公开(公告)日：1998-06-03
申请号：EP97309191.1
申请日：1997-11-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Ninomiya, Syoiti , Tezuka, Shu , Morimoto, Norishige
IPC分类号： G06T11/00
CPC分类号： G06T1/0071 , G06T2201/0052 , H04N1/32154 , H04N2201/327 , H04N2201/328
摘要： In order to hide message information (m) in media information (M), the frequency transform of the message information (m) and the media information (M) are performed, and frequency spectra f 1 and f 2 are obtained. Next, from the frequency spectrum f 2 of the message information (m), a region containing feature frequency components representative of the features of the message information (m) in real space is extracted as the base region B. Then, n copies of the base region B are generated, and in frequency space, the n copies are dispersedly arranged. Also, by making the frequency components other than that equal to zero, a frequency spectrum f 3 is generated as intermediate information. Finally, the frequency spectrum f 3 and the frequency spectrum f 1 are added, and by performing the inverse frequency transform of the result, the message information (m) can be hidden in the media information (M).
摘要翻译：为了隐藏在媒体信息（M）的报文信息（M），所述频率变换的消息信息（m）和媒体信息（M）被执行，并且频谱f1和f2得到。接着，从报文信息（M）的频谱f2的，含特征频率成分表示实空间中报文信息（M）的特征的区域被提取作为基区域B.然后，将n的碱的副本区域B被生成，并且在频率空间中，n个拷贝分散地布置。所以，通过使频率分量比等于零其他，频谱f3是作为中间信息生成的。最后，频谱f3和频谱F1相加，通过进行逆频率变换的结果的，该消息信息（M）可以被隐藏在媒体信息（M）。

8. 发明公开

EP0469821A3 Switch mode power supply 失效
标题翻译：开关电源
公开(公告)号：EP0469821A3
公开(公告)日：1992-05-06
申请号：EP91306914.2
申请日：1991-07-29
申请人： International Business Machines Corporation
发明人： Kobayashi, Masaki , Mori, Masaki , Morimoto, Norishige
IPC分类号： H02M3/335 , H02M3/338 , H02M3/28 , H04N3/185
CPC分类号： H04N3/185 , H02M3/33507
摘要： A switch mode power supply comprises a drive circuit (7) for generating first and second switching signals in response to first and second input signals of different frequencies, and a switching regulator (9) for generating one or more regulated power supply output voltages in response to the first and second switching signals. The power supply further comprises a control circuit (3,4,6,10,15) for determining, in response to the first and second input pulse signals, a first frequency range containing the frequencies of the first and second input signals when respectively multiplied by first and second integer multiples that is narrower than a second frequency range containing the frequencies of the first and second input signals when each multiplied by a common integer multiple. The control circuit (3,4,6,10,15) configures the drive circuit (7) to generate the first switching signal at a frequency which is the first integer multiple of the frequency of the first input pulse signal and the second switching signal at a frequency which is the second integer multiple of the frequency of the second input pulse signal in such a manner that the frequencies of the first and second switching signals are within the first range.

9. 发明授权

EP0845757B1 Data hiding method and data extracting method 失效
标题翻译：一种用于数据和用于数据Verdeckerung方法的提取处理
公开(公告)号：EP0845757B1
公开(公告)日：2005-08-17
申请号：EP97309191.1
申请日：1997-11-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Ninomiya, Syoiti , Tezuka, Shu , Morimoto, Norishige
IPC分类号： G06T11/00
CPC分类号： G06T1/0071 , G06T2201/0052 , H04N1/32154 , H04N2201/327 , H04N2201/328

10. 发明授权

EP0845758B1 Embedding authentication information into an image 失效
标题翻译：在图像中引入的认证信息的方法
公开(公告)号：EP0845758B1
公开(公告)日：2003-03-19
申请号：EP97309192.9
申请日：1997-11-14
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Shimizu, Shuichi , Numao, Masayuki , Morimoto, Norishige
IPC分类号： G06T11/00
CPC分类号： G06T1/0028 , G06T2201/0065 , H04N1/32144 , H04N2101/00 , H04N2201/3233 , H04N2201/3236 , H04N2201/327 , H04N2201/3281
摘要： A digital camera has means to authentication information into a photographed image for detecting the identity of the image. The authentication information supplied integrally with the image data, so that, the verifier can verify the image data without saving the authentication information. This is achieved by having a region dividing unit 24 for dividing the image into a first image region and a second image region in response to the digital signal, authentication information generating means 29 for generating authentication information from data in the first image region, encrypting means 30 for encrypting the authentication information, hiding means 25 for embedding the encrypted authentication information into the second image region by operating the data in the second image region, and region combining means 26 for combining the first image region in the image with the second image region in which the authentication information is embedded.

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