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1. 发明申请

US20060179407A1 Trusted display device for visual cryptography 审中-公开
标题翻译：用于视觉加密的可信显示设备
公开(公告)号：US20060179407A1
公开(公告)日：2006-08-10
申请号：US10549369
申请日：2004-03-15
申请人： Pim Tuyls , Mark Johnson , Thomas Kevenaar , Geert Schrijen
发明人： Pim Tuyls , Mark Johnson , Thomas Kevenaar , Geert Schrijen
IPC分类号： G06F3/00
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 (1a) having a plurality of independently addressable pixels. A plurality of sensors (1c) are associated with at least a subset of the pixels of said display screen (1a) 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，重建图形消息，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它们在显示器（1,2）叠加时能够检测光学编码信息由不可信显示器（2）的底层像素呈现，并且基于所感测的信息调整其像素的激活。

2. 发明申请

US20060227969A1 Visual cryptography system 审中-公开
标题翻译：视觉加密系统
公开(公告)号：US20060227969A1
公开(公告)日：2006-10-12
申请号：US10548245
申请日：2004-03-01
申请人： Mark Johnson , Pim Tuyls , Thomas Kevenaar
发明人： Mark Johnson , Pim Tuyls , Thomas Kevenaar
IPC分类号： H04N7/167
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。

3. 发明申请

US20060177060A1 Image alignment 审中-公开
标题翻译：图像对齐
公开(公告)号：US20060177060A1
公开(公告)日：2006-08-10
申请号：US10565666
申请日：2004-07-12
申请人： Mark Johnson , Pim Tuyls , Thomas Kevenaar , Geert Schrijen
发明人： Mark Johnson , Pim Tuyls , Thomas Kevenaar , Geert Schrijen
IPC分类号： H04K1/00
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）。相应的对准图像（22）可以布置在屏幕周围（20），或者可以是加密图像的一部分。可以提供手动或自动对准。

4. 发明申请

US20070057886A1 Image decryption system 审中-公开
标题翻译：图像解密系统
公开(公告)号：US20070057886A1
公开(公告)日：2007-03-15
申请号：US10574449
申请日：2004-10-04
申请人： Mark Johnson , Pim Tuyls , Thomas Kevenaar
发明人： Mark Johnson , Pim Tuyls , Thomas Kevenaar
IPC分类号： G09G3/36
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）。

5. 发明申请

US20050117748A1 Secure visual message communication method and device 审中-公开
标题翻译：安全的视讯消息通信方式和设备
公开(公告)号：US20050117748A1
公开(公告)日：2005-06-02
申请号：US10503684
申请日：2003-01-27
申请人： Geert Schrijen , Pim Tuyls , Thomas Kevenaar , Mark Johnson
发明人： Geert Schrijen , Pim Tuyls , Thomas Kevenaar , Mark Johnson
IPC分类号： G02F1/13 , G02F1/133 , G02F1/1333 , G02F1/1335 , G06F21/83 , G06F21/84 , G09G3/20 , G09G3/36 , H04K1/00 , H04N7/167
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。

6. 发明申请

US20070058835A1 Screen image authentication 审中-公开
标题翻译：屏幕图像认证
公开(公告)号：US20070058835A1
公开(公告)日：2007-03-15
申请号：US10576313
申请日：2004-10-14
申请人： Geert Schrijen , Mark Johnson , Pim Tuyls
发明人： Geert Schrijen , Mark Johnson , Pim Tuyls
IPC分类号： G06K9/00
CPC分类号： H04N1/32101 , H04N2201/0418
摘要： A method of verifying the authenticity of an image (1) rendered on a display screen (10) involves using a graphical representation of an authentication code (2) associated with the image. The graphical representation of the authentication code is also rendered on the display screen, while optional guide marks (3) may also be displayed. Both the image (1) and the associated authentication code (2) are read using a scanner (20), preferably a handheld linear scanner. The scanner calculates an authentication code based upon the image and compares the calculated authentication code with the authentication code read from the display.
摘要翻译：验证在显示屏幕（10）上呈现的图像（1）的真实性的方法涉及使用与图像相关联的认证码（2）的图形表示。验证代码的图形表示也显示在显示屏上，而可选择的引导标记（3）也可以显示。使用扫描器（20），优选地是手持式线性扫描器来读取图像（1）和相关联的认证码（2）。扫描仪基于图像计算认证码，并将计算的认证码与从显示器读取的认证码进行比较。

7. 发明申请

US20060008086A1 Image encryption method and visual decryption device 审中-公开
标题翻译：图像加密方法和视觉解密装置
公开(公告)号：US20060008086A1
公开(公告)日：2006-01-12
申请号：US10526870
申请日：2003-08-27
申请人： Thomas Andreas Kevenaar , Mark Johnson , Geert Schrijen , Pim Tuyls
发明人： Thomas Andreas Kevenaar , Mark Johnson , Geert Schrijen , Pim Tuyls
IPC分类号： H04L9/00
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 a 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：一种基于密钥序列将图形消息（220,221）编码为信息单元的编码序列的方法。对于消息的每个像素，所述像素具有标准化强度I，确定导致基本上强度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。作为编码序列的元素，输出关键序列中的总旋转a与相应的旋转之间的差。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。

8. 发明申请

US20050219149A1 Device for reconstructing a graphical message 审中-公开
标题翻译：用于重建图形消息的设备
公开(公告)号：US20050219149A1
公开(公告)日：2005-10-06
申请号：US10510252
申请日：2003-03-20
申请人： Pim Tuyls , Mark Johnson
发明人： Pim Tuyls , Mark Johnson
IPC分类号： G09G3/36 , G09C5/00 , G09F9/46 , G09G3/20 , G09G3/30 , G09G3/34 , G09G3/38 , G09G5/00
CPC分类号： G09C5/00
摘要： A device comprising receiving means for receiving a sequence of information units, a first display arranged for displaying the sequence of information units by activating cells in a first electro-optical layer in dependence on the sequence, a second display arranged for activating cells in a second electro-optical layer in dependence on elements in a key sequence, in which the first and second displays are arranged to be superimposed on each other, and in which one of the first and second displays comprises a light valve, and the other of the first and second displays comprises one of: a transmissive display, an emissive display, a reflective display and a transflective display.
摘要翻译：一种设备，包括：接收装置，用于接收信息单元序列;第一显示器，其被布置为通过根据所述序列激活第一电光层中的单元来显示所述信息单元序列;第二显示器，被布置用于激活第二个电光层，其依赖于键序列中的元件，其中第一和第二显示器被布置为彼此重叠，并且第一和第二显示器中的一个包括光阀，并且第一和第二显示器中的另一个第二显示器包括透射显示器，发射显示器，反射显示器和透反射显示器之一。

9. 发明授权

US10328467B2 Automatic cleaning at a self-service dispensing device 有权
公开(公告)号：US10328467B2
公开(公告)日：2019-06-25
申请号：US13326545
申请日：2011-12-15
申请人： Mark Johnson , Gregg Fallon , Tommy Williams , Kenn Armstrong , Dave Gregerson
发明人： Mark Johnson , Gregg Fallon , Tommy Williams , Kenn Armstrong , Dave Gregerson
IPC分类号： A47L13/17 , B08B1/00 , B08B1/02 , G07F19/00 , G07F7/00 , G07F7/08
摘要： Methods are provided for automatic cleaning of gripper belts and rollers within a self-service dispensing device. In an embodiment, a cleaning station located in a storage bin of the dispensing device is used to perform the automatic cleaning. The cleaning station is retrofitted into an existing storage bin of the dispensing device. In another embodiment, an interactive slot mechanism of the dispensing device is modified to hold a cleaning case and provide cleaning fluid to clean the belts and/or rollers. In another embodiment, a cleaning case contains a reservoir of cleaning fluid and a pad saturated with the cleaning fluid to clean the internal belts and roller. Furthermore the cleaning case may contain an automatic lid to maintain saturation of the pads and to keep debris from the cleaning case itself.

10. 发明授权

US09592633B2 Polymer seaming using diffusion welds 有权
标题翻译：聚合物接缝使用扩散焊缝
公开(公告)号：US09592633B2
公开(公告)日：2017-03-14
申请号：US13302382
申请日：2011-11-22
申请人： Gregory Laue , William Clayton , Mark Johnson , Timothy Wright , Kevin Melton , Garrett Poe
发明人： Gregory Laue , William Clayton , Mark Johnson , Timothy Wright , Kevin Melton , Garrett Poe
IPC分类号： B29C65/00 , B29C65/02 , B29C65/18 , B64G1/22 , B64G1/40 , B64G1/44 , B64G1/54 , C08G73/10 , C08G73/22 , C08L79/04 , C08L79/08 , B29K27/18 , B29K67/00 , B29K71/00 , B29K77/00 , B29K79/00 , B29K81/00 , B29K101/10 , B29K105/00 , B29L9/00 , B29L31/30
CPC分类号： B29C65/006 , B29C65/02 , B29C65/18 , B29C66/0044 , B29C66/1122 , B29C66/1142 , B29C66/21 , B29C66/232 , B29C66/303 , B29C66/344 , B29C66/348 , B29C66/43 , B29C66/435 , B29C66/71 , B29C66/712 , B29C66/723 , B29C66/72321 , B29C66/73111 , B29C66/73112 , B29C66/73115 , B29C66/73921 , B29C66/7394 , B29C66/73941 , B29C66/80 , B29C66/81422 , B29C66/836 , B29C66/8362 , B29C66/91411 , B29C66/91421 , B29C66/919 , B29C66/91935 , B29C66/91941 , B29C66/91943 , B29C66/91945 , B29K2027/18 , B29K2065/00 , B29K2067/00 , B29K2071/00 , B29K2077/00 , B29K2079/08 , B29K2079/085 , B29K2081/04 , B29K2101/10 , B29K2105/0079 , B29L2009/00 , B29L2031/3097 , B64G1/226 , B64G1/407 , B64G1/44 , B64G1/54 , C08G73/1046 , C08G73/105 , C08G73/1067 , C08G73/1071 , C08G73/22 , C08L79/04 , C08L79/08 , Y10T428/19 , Y10T428/197 , B29C65/00 , B29K2079/00
摘要： The present invention is a method for seaming a polymeric material. The method involves forming an interface between a plurality of separate polymeric sheets of materials. Next, heat and pressure are applied to facilitate the diffusion of the polymer molecules at the interface. A diffusion weld is made when the polymer molecules diffuse across the interface.
摘要翻译：本发明是一种聚合材料接缝的方法。该方法包括在多个单独的聚合物材料片之间形成界面。接下来，施加热和压力以促进聚合物分子在界面处的扩散。当聚合物分子在界面上扩散时，进行扩散焊接。

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