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1. 发明申请

WO2005053322A1 STEREOSCOPIC VIEWING 审中-公开
标题翻译：立体视野
公开(公告)号：WO2005053322A1
公开(公告)日：2005-06-09
申请号：PCT/IB2004/052560
申请日：2004-11-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M.
发明人： JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M.
IPC分类号： H04N13/04
CPC分类号： H04N13/359 , H04N13/302 , H04N13/305 , H04N13/31 , H04N13/341 , H04N13/363 , H04N13/395
摘要： A device (1) for stereoscopic viewing comprises a first LCD screen (10), a second LCD screen (20), a first polarizer (12) arranged in front of the first LCD screen and a second polarizer (22) arranged behind the second LCD screen (20). There are no polarizers between the first LCD screen and the second LCD screen. Each pair of pixels consisting of a pixel (11) of the first LCD screen and a pixel (21) of the second LCD screen may define a pixel of the stereoscopic image, their combined rotation of the polarized light determining the gray value of the pixel.
摘要翻译：用于立体观看的装置（1）包括第一LCD屏幕（10），第二LCD屏幕（20），布置在第一LCD屏幕前面的第一偏振器（12）和布置在第二LCD屏幕之后的第二偏振器液晶屏（20）。第一个液晶屏和第二个液晶显示屏之间没有偏光板。由第一LCD屏幕的像素（11）和第二LCD屏幕的像素（21）组成的每对像素可以定义立体图像的像素，它们的组合旋转决定像素的灰度值。

2. 发明申请

WO2004023694A1 IMAGE ENCRYPTION METHOD AND VISUAL DECRYPTION DEVICE 审中-公开
标题翻译：图像加密方法和视觉分解设备
公开(公告)号：WO2004023694A1
公开(公告)日：2004-03-18
申请号：PCT/IB2003/003842
申请日：2003-08-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , KEVENAAR, Thomas, A., M. , JOHNSON, Mark, T. , SCHRIJEN, Geert, J. , TUYLS, Pim, T.
发明人： KEVENAAR, Thomas, A., M. , JOHNSON, Mark, T. , SCHRIJEN, Geert, J. , TUYLS, Pim, T.
IPC分类号： H04K1/00
CPC分类号： G09C5/00
摘要： A method of encoding a graphical message (220, 221) based on a key sequence as an encoded sequence of information units. For each pixel of the message, said pixel having a normalized intensity I, a total rotation α which results in a liquid crystal display in a pixel with substantially the intensity I is determined. The key sequence contains arbitrary rotations. The difference between the total rotation α and a corresponding rotation in the key sequence is output as an element of the encoded sequence. A device (201) presents pixels with rotations indicated by the encoded sequence on a first display (701) and pixels with rotations indicated by the key sequence on a second display (211). Superimposing the two displays reveals the graphical message. The method can be repeated for red, green and blue intensities of color pixels, allowing colored graphical messages to be encoded and reconstructed.
摘要翻译：一种基于密钥序列编码图形消息（220,221）作为编码信息单元序列的方法。对于消息的每个像素，所述像素具有归一化强度I，确定导致具有基本上强度I的像素中的液晶显示的总旋转α。关键序列包含任意旋转。键序列中的总旋转α与相应的旋转之间的差异被输出为编码序列的元素。设备（201）在第一显示器（701）上呈现由编码序列指示的旋转的像素，并且在第二显示器（211）上呈现由键序列指示的旋转的像素。叠加两个显示屏显示图形信息。该方法可以重复红色，绿色和蓝色强度的彩色像素，允许彩色图形消息进行编码和重构。

3. 发明申请

WO2005034402A1 IMAGE DECRYPTION SYSTEM 审中-公开
标题翻译：图像分解系统
公开(公告)号：WO2005034402A1
公开(公告)日：2005-04-14
申请号：PCT/IB2004/051957
申请日：2004-10-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M.
发明人： JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M.
IPC分类号： H04K1/00
CPC分类号： G09C5/00
摘要： A decryption device (2) is arranged for visually decrypting an encrypted image displayed on a display device (1) emitting polarized light. The decryption device (2) comprises a polarizing element (21), a liquid crystal display (23), and a further polarizing element (22), arranged such that the polarized light received from the display device (1) and incident on the polarizing element (21) may pass through the liquid crystal display (23) and the further polarizing element (22). The polarizing element (21) comprises a switchable polarizer capable of switching between a first, polarizing state and a second, nonpolarizing state. This allows the decryption device to be used as a stand-alone device which can also be used for other applications. The display device (1) is preferably also provided with a switchable polarizer (12).
摘要翻译：解密装置（2）被布置用于视觉解密在发射偏振光的显示装置（1）上显示的加密图像。解密装置（2）包括偏振元件（21），液晶显示器（23）和另外的偏振元件（22），其布置成使得从显示装置（1）接收并入射到偏振光元件（21）可以通过液晶显示器（23）和另一偏振元件（22）。偏振元件（21）包括可在第一偏振状态和第二非极化状态之间切换的可切换偏振器。这允许解密装置用作独立装置，其也可以用于其他应用。显示装置（1）优选地还设置有可切换偏振器（12）。

4. 发明申请

WO2004081870A1 VISUAL CRYPTOGRAPHY SYSTEM 审中-公开
标题翻译：视觉摄影系统
公开(公告)号：WO2004081870A1
公开(公告)日：2004-09-23
申请号：PCT/IB2004/050175
申请日：2004-03-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M.
发明人： JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M.
IPC分类号： G06T1/00
CPC分类号： G09G5/005 , G06T1/00 , G09C5/00 , G09G3/36 , G09G5/006 , G09G5/12 , G09G2300/023
摘要： The present invention relates to a visual cryptography system. The system comprises a first and a second display device (1, 2), arranged for, upon being superimposed on each other, reconstructing a graphical message from two respective shares. At least one of said display devices (1, 2) comprise means for facilitating determination of the resolution and pixel size of the other. At least one, preferably both, of, said display devices (1, 2) is arranged to scale the resolution and pixel size of its share to a mutually supported resolution and pixel size, and preferably to a mutually supported smallest common multiple resolution and pixel size.
摘要翻译：本发明涉及视觉密码系统。该系统包括第一和第二显示设备（1,2），被布置为在彼此叠加之后重建来自两个相应股份的图形消息。所述显示设备（1,2）中的至少一个包括用于便于确定另一个的分辨率和像素大小的装置。布置所述显示设备（1,2）的至少一个，优选两个，以将其共享的分辨率和像素大小缩放到相互支持的分辨率和像素尺寸，并且优选地相互支持的最小公共多分辨率和像素尺寸。

5. 发明申请

WO2005009026A1 IMAGE ALIGNMENT 审中-公开
标题翻译：图像对齐
公开(公告)号：WO2005009026A1
公开(公告)日：2005-01-27
申请号：PCT/IB2004/051195
申请日：2004-07-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M. , SCHRIJEN, Geert, J.
发明人： JOHNSON, Mark, T. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M. , SCHRIJEN, Geert, J.
IPC分类号： H04N1/44
CPC分类号： G09C5/00 , H04N1/3876 , H04N1/44 , H04N1/448 , H04N1/4493
摘要： An image decryption device (1) comprises a screen (10) on which a decrypted image may be visible. The decrypted image may the combination of two partial images, an encrypted image (A) displayed by a display device (2) and a key image or decrypting image (B) superimposed on the encrypted image by the decryption device. To properly align the encrypted image (A) and the key image (B), the decryption device is provided with sensors (11) capable of sensing the position of the decryption device relative to the display device. Corresponding alignment images (22) may be arranged around the screen (20 of the display device, or may be part of the encrypted image. Manual or automatic alignment may be provided.
摘要翻译：图像解密装置（1）包括其上可以看到解密的图像的屏幕（10）。解密图像可以由解密装置组合两个部分图像，由显示装置（2）显示的加密图像（A）和叠加在加密图像上的密钥图像或解密图像（B）。为了正确对准加密图像（A）和密钥图像（B），解密装置设置有能够感测解密装置相对于显示装置的位置的传感器（11）。对应的对准图像（22）可以围绕屏幕（20）显示，或者可以是加密图像的一部分。可以提供手动或自动对准。

6. 发明申请

WO2004040903A1 IMAGE DECRYPTION DEVICE AND METHOD 审中-公开
标题翻译：图像分解装置和方法
公开(公告)号：WO2004040903A1
公开(公告)日：2004-05-13
申请号：PCT/IB2003/004449
申请日：2003-10-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M. , SCHRIJEN, Geert, J. , JOHNSON, Mark, T. , GIRALDO, Andrea
发明人： TUYLS, Pim, T. , KEVENAAR, Thomas, A., M. , SCHRIJEN, Geert, J. , JOHNSON, Mark, T. , GIRALDO, Andrea
IPC分类号： H04N1/44
CPC分类号： H04N7/167 , G09C5/00 , H04N1/32219 , H04N1/32272 , H04N1/44 , H04N1/4486 , H04N1/4493 , H04N21/2347 , H04N21/4405 , H04N21/4753 , H04N2201/327 , H04N2201/3273
摘要： A device (1) for decrypting an encrypted image (B) displayed on a display device (2) has sensor elements (21) for sensing the encrypted image (B) and display elements (22) for displaying the decrypted image (C). The decryption is carried out by electrical or optical connections (13) between the sensor elements (21) and the display elements (22) and may involve a permutation of the image elements. A method of decrypting an encrypted image (B) displayed on a display device (2) involves using a decryption device (1) for carrying out a permutation to produce a decrypted image (C).
摘要翻译：用于解密在显示装置（2）上显示的加密图像（B）的装置（1）具有用于感测加密图像（B）的传感器元件（21）和用于显示解密图像（C）的显示元件（22）。解密由传感器元件（21）和显示元件（22）之间的电气或光学连接（13）进行，并且可能涉及图像元件的置换。对显示在显示装置（2）上的加密图像（B）进行解密的方法涉及使用解密装置（1）进行排列以产生解密图像（C）。

7. 发明申请

WO2003067797A1 SECURE VISUAL MESSAGE COMMUNICATION METHOD AND DEVICE 审中-公开
标题翻译：安全视觉信息通信方法和设备
公开(公告)号：WO2003067797A1
公开(公告)日：2003-08-14
申请号：PCT/IB2003/000261
申请日：2003-01-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHRIJEN, Geert, J. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M. , JOHNSON, Mark, T.
发明人： SCHRIJEN, Geert, J. , TUYLS, Pim, T. , KEVENAAR, Thomas, A., M. , JOHNSON, Mark, T.
IPC分类号： H04K1/00
CPC分类号： G09C5/00 , G06F21/83 , G06F21/84
摘要： A method of and a device (501) for reconstructing a graphical message (520) using visual cryptography. Cells (303, 304) in a first liquid crystal display (701) are activated if a bit in a message sequence represents '1', and not activated if said bit represents '0'. Cells (303, 304) in a second liquid crystal display (511) are activated if a bit in a key sequence represents '0', and not activated if said bit represents '1'. The first and second displays (701, 511) are then superimposed so as to visually reconstruct the graphical message (520). Preferably a portion of a polarization filter (305) in an area of the first liquid crystal display (701), and a corresponding portion of a polarization filter (302) in an area of the second liquid crystal display (511) have been omitted to allow superimposition of the first and second liquid crystal displays (701, 511) at said areas.
摘要翻译：一种用于使用可视密码学重建图形消息（520）的方法和装置（501）。如果消息序列中的位表示“1”，则第一液晶显示器（701）中的单元（303,304）被激活，并且如果所述位表示“0”，则不激活。如果键序列中的位表示“0”，则第二液晶显示器（511）中的单元（303,304）被激活，如果所述位表示“1”，则不激活。然后叠加第一和第二显示器（701,511），以便可视地重建图形消息（520）。优选地，省略了在第一液晶显示器（701）的区域中的偏振滤光器（305）的一部分和第二液晶显示器（511）的区域中的偏振滤光器（302）的对应部分，允许第一和第二液晶显示器（701,511）在所述区域处叠加。

8. 发明申请

WO2004083993A2 TRUSTED DISPLAY DEVICE FOR VISUAL CRYPTOGRAPHY 审中-公开
标题翻译： TRUSTED显示设备用于视觉图形
公开(公告)号：WO2004083993A2
公开(公告)日：2004-09-30
申请号：PCT/IB2004/050258
申请日：2004-03-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , TUYLS, Pim, T. , JOHNSON, Mark, T. , KEVENAAR, Thomas, A., M. , SCHRIJEN, Geert, J.
发明人： TUYLS, Pim, T. , JOHNSON, Mark, T. , KEVENAAR, Thomas, A., M. , SCHRIJEN, Geert, J.
IPC分类号： G06F
CPC分类号： G09C5/00 , G09G2300/023
摘要： A trusted display device (1) for, upon being superimposed on an untrusted display (2), reconstructing a graphical message, said device comprising a display screen (la) having a plurality of independently addressable pixels. A plurality of sensors (l c) are associated with at least a subset of the pixels of said display screen (l a) and arranged such that they, when the displays (1, 2) are superimposed, are able to detect optically encoded information presented by an underlying pixel of the untrusted display (2) and adapt the activation of its pixels based on said information sensed.
摘要翻译：一种可信任的显示设备（1），用于在叠加在不可信的显示器（2）上时，重构图形消息，所述设备包括具有多个可独立寻址的像素的显示屏幕（1a）。多个传感器（1c）与所述显示屏（1a）的像素的至少一个子集相关联并且被布置成使得当显示器（1,2）叠加时，它们能够检测由不可信显示器（2）的底层像素，并且基于所感测的所述信息来调整其像素的激活。

9. 发明申请

WO2007072426A3 METHOD OF MANUFACTURING A POLARIZATION RETARDATION FILM 审中-公开
公开(公告)号：WO2007072426A3
公开(公告)日：2007-06-28
申请号：PCT/IB2006/054953
申请日：2006-12-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , JOHNSON, Mark, T. , TUYLS, Pim, T. , REIJME, Mireille, A. , VAN DER ZANDE, Bianca, M., I. , LUB, Johan
发明人： JOHNSON, Mark, T. , TUYLS, Pim, T. , REIJME, Mireille, A. , VAN DER ZANDE, Bianca, M., I. , LUB, Johan
IPC分类号： G02B5/30
摘要： The present invention relates to a method of manufacturing a polarization retardation film, the method comprising the steps of coating a surface (112) with a polymerizable mesogenic composition comprising a polymerizable mesogenic compound (113) and an isomerizable compound, inducing isomerization of non-mesogenic isomers in the composition, creating an anisotropic and an isotropic region in the coating by inducing phase separation of the polymerizable mesogenic composition, and polymerizing the coating in order to obtain a polarization retardation film. The invention also relates to a polarization retardation film generated thereby for use in security applications. The invention further relates to a system for identification/authentication using a polarization retardation film of objects associated with a polarization retardation film according to the present invention.

10. 发明申请

WO2007072251A2 SECURITY ELEMENT AND METHODS FOR MANUFACTURING AND AUTHENTICATING THE SAME 审中-公开
标题翻译：安全元件及其制造方法及其认证
公开(公告)号：WO2007072251A2
公开(公告)日：2007-06-28
申请号：PCT/IB2006/054501
申请日：2006-11-29
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , WOLTERS, Robertus, A., M. , JOHNSON, Mark, T. , TUYLS, Pim, T.
发明人： WOLTERS, Robertus, A., M. , JOHNSON, Mark, T. , TUYLS, Pim, T.
IPC分类号： G07D7/00 , G07F7/08 , G06K19/067
CPC分类号： G07F7/12 , G06K19/0672 , G06K19/10 , G07D7/01 , G07F7/08
摘要： A security element comprises at least one oscillating circuit (Ol-On) and a digital signature (2). Each oscillating circuit (Ol-On) comprises a capacitor (Cl-Cn) as resonance frequency setting element wherein the capacitor (Cl-Cn) consists of two electrodes (8, 10) which are spaced apart from each other and a dielectric (9) that is sandwiched between the two electrodes (8, 10). The capacitor (Cl-Cn) of each oscillating circuit has a random capacitance value which randomness is caused by a non-uniform thickness (d) of the dielectric (9) and/or by an inhomogeneous dielectric material. The digital signature (2) comprises reference values indicative for the resonance frequencies (fl - fh) of the oscillating circuits wherein the reference values are digitally signed with a secret key.
摘要翻译：安全元件包括至少一个振荡电路（Ol-On）和数字签名（2）。每个振荡电路（Ol-On）包括作为谐振频率设定元件的电容器（C1-Cn），其中电容器（C1-Cn）由彼此间隔开的两个电极（8,10）和电介质（9 ）夹在两个电极（8,10）之间。每个振荡电路的电容器（C1-Cn）具有由电介质（9）的不均匀厚度（d）和/或由不均匀的电介质材料引起的无规性的随机电容值。数字签名（2）包括指示振荡电路的谐振频率（fl-fh）的参考值，其中参考值用秘密密钥进行数字签名。

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