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339 条记录 (耗时 0.023 秒)

    Secure encoding method and associated products
    121.
    发明公开
    Secure encoding method and associated products 失效
    SicheresVerschlüsselungsverfahrenund verwandte Produkte。

    公开(公告)号：EP0260815A1

    公开(公告)日：1988-03-23

    申请号：EP87307275.5

    申请日：1987-08-18

    申请人： SPECTRON PRINT PTY. LIMITED

    发明人： O'Brien,Kevin Arthur ,  Rowley,Kenneth David ,  Paykin,Alex

    IPC分类号： G09C5/00

    CPC分类号： G09C5/00 ,  A63F3/065

    摘要： Means for producing visual information, characterised by a base surface 5 having an area coloured in two distinct colours, the first of said colours being the background colour and the second of said colours being applied in a random pattern of macro-pixels 6 of definite uniform shape, and a mask 8 which is transparent over at least an area identical to the first mentioned area and is arranged so the tranparent portion has pixels 11 which are identical in size with said first-mentioned pixels in a pattern 9 generally identical with the pattern on the base surface except in that portion where the information is desired to appear, in which portion the pixels 11 are displaced with respect to those on the base surface, so that in that portion the pixels produce the desired visual information when the pattern on the mask is placed directly over the pattern on the base surface and on the remainder of the area the random pattern is maintained.

    摘要翻译： 用于产生视觉信息的装置，其特征在于具有以两种不同颜色着色的区域的基面5，所述颜色中的第一颜色是背景颜色，并且所述颜色中的第二颜色以确定均匀的宏观像素6的随机图案 形状，以及至少在与第一提及区域相同的区域上透明的掩模8，并且布置成使得透明部分具有与图案9大致相同的图案9中与所述第一提到的像素大小相同的像素11 在基本表面上，除了需要出现信息的部分之外，像素11相对于基面上的像素移位的部分，使得在该部分中，当在该部分上的图案时，像素产生期望的视觉信息 掩模直接放置在基面上的图案上，并且在该区域的其余部分上保持随机图案。

    ELECTRONIC WRITING DEVICE, SYSTEM AND METHOD FOR SECURING A DOCUMENT IN A DIGITAL FORM WITH THE USE OF A HAND-WRITTEN SIGNATURE
    123.
    发明授权
    ELECTRONIC WRITING DEVICE, SYSTEM AND METHOD FOR SECURING A DOCUMENT IN A DIGITAL FORM WITH THE USE OF A HAND-WRITTEN SIGNATURE 审中-公开

    公开(公告)号：EP3224825B1

    公开(公告)日：2018-12-26

    申请号：EP15801932.3

    申请日：2015-10-19

    申请人： Tabor, Michal

    发明人： TABOR, Michal

    IPC分类号： G09C5/00 ,  H04L9/32

    CPC分类号： H04L9/3231 ,  G09C5/00 ,  H04L9/3247 ,  H04L2209/805

    摘要： The object of the invention is an electronic writing device, a system and a method for securing a document in a digital form with the use of a hand-written signature submitted by means of said writing device, i.e. an e-pen. The invention is particularly applicable in running business or in public administration. The electronic writing device (1) for securing a document in a digital form with the use of a hand-written signature (B), comprising a housing, a power source (12), a transceiver unit adapted for communication with an external device, a cryptographic component (9), at least one internal sensor (7) capable of collecting data on the process of placing a signature, means for gathering a digital characteristic feature of the document being secured, is characterised in that it further comprises means (5) for stimulating, in the external device (2), a detector of the process of placing a signature, means (15) for simultaneously gathering data (B") on the process of placing a hand-written signature (B), sent from the external device (2), and data (Β') from at least one internal sensor (7), and in that the cryptographic component (9) is adapted to generate an electronic seal and provide it at least in the data (Β') and (B") obtained from the process of placing a signature and a digital characteristic feature (C) of the document being secured.

    IMAGE ENCRYPTION/DECRYPTION DEVICE, METHOD, AND PROGRAM
    128.
    发明授权
    IMAGE ENCRYPTION/DECRYPTION DEVICE, METHOD, AND PROGRAM 有权

    公开(公告)号：EP2079228B1

    公开(公告)日：2018-06-27

    申请号：EP07736874.4

    申请日：2007-03-13

    申请人： Fujitsu Limited

    发明人： NAKAGATA, Shohei ,  KURAKI, Kensuke ,  ANAN, Taizo

    IPC分类号： H04N1/387 ,  G09C5/00 ,  H04N1/44

    CPC分类号： G09C5/00 ,  H04N1/4486

    摘要： In order to encrypt a part of an input image in such a manner that the encrypted part can be located for decryption, means for regularly converting pixel values in the area to be encrypted and generating a pattern unique to the pixel value conversion in order to encrypt the area to be encrypted; means for setting a specified positioning marker for locating an encryption position at two or more of the four corners of the area to be encrypted; and means for setting one or more checking marks for verifying appropriateness of a decrypted image in the encrypted area before the decryption are included.

    TEXT OBFUSCATION
    130.
    发明公开
    TEXT OBFUSCATION 审中-公开
    文本混淆

    公开(公告)号：EP3319007A1

    公开(公告)日：2018-05-09

    申请号：EP17199639.0

    申请日：2017-11-02

    申请人： BlackBerry Limited

    发明人： KOMINAR, Jeremy Lawson

    IPC分类号： G06F21/84 ,  G06F21/62 ,  G09C5/00

    CPC分类号： G06F17/214 ,  G06F3/017 ,  G06F3/04847 ,  G06F3/0485 ,  G06F21/6245 ,  G06F21/84 ,  G06F2221/032 ,  G09C5/00

    摘要： Text may be obfuscated by manipulating (pre-processing) the text to, thereby, generate obfuscated text before presenting the obfuscated text on the display of a computing device. The manipulation of the text may obfuscate the text in such a manner that the meaning of the text is clear only to the reader that understands the manner of obfuscation. The text may be rasterized and manipulated to have a greater height. The rasterized text may be further manipulated to have a decreased width. The obfuscated text may be scrolled across a display.

    摘要翻译： 可以通过操控（预处理）文本来将文本模糊化，从而在将混淆文本呈现在计算设备的显示器上之前生成模糊文本。 对文本的操纵可能会以这样的方式对文本进行混淆，即文本的含义只对理解混淆方式的读者明确。 文本可以被栅格化并被操纵以具有更高的高度。 栅格化文本可以被进一步操纵以具有减小的宽度。 混淆的文本可能会滚动显示。