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公开(公告)号：US6019208A
公开(公告)日：2000-02-01
申请号：US974710
申请日：1997-11-19
申请人： Barchuk Vladymir
发明人： Barchuk Vladymir
摘要： A device for validating the authenticity of a document uses changes in capacitance due to the presence of an electrically conductive security thread extending across the document. The device uses a drive arrangement for moving of a document such as a bank note, past a sensing arrangement which senses changes in capacitance due to movement of a security thread therepast. A frequency generator produces a high frequency time varying oscillator signal and provides this signal to an elongate oscillator electrode extending across the path of movement. A lead elongate measuring electrode is electrically conductive and positioned in front of the oscillator electrode and extends across said path and a trailing elongate measuring electrode is positioned behind the oscillator electrode and extends across the path. The signals from the measuring and the oscillator electrode are provided to a signal processing arrangement. The signal processing arrangement processes the signals relative to detect a phase shift between the signals caused by a conductive security thread passing by the electrodes. Sensing of the phase shift reduces sensitivity to variations caused by wobble of the bank note and changes in separation distance of the bank note from the sensor.
摘要翻译： 用于验证文档的真实性的设备使用由于存在延伸穿过文档的导电安全线程而导致的电容变化。 该装置使用用于移动诸如纸币的文件的驱动装置，通过感测装置，其感测由于安全线程的移动而导致的电容变化。 频率发生器产生高频时变振荡器信号，并将该信号提供给延伸穿过移动路径的细长振荡电极。 引线细长测量电极是导电的并且位于振荡器电极的前面并且延伸穿过所述路径，并且尾部细长测量电极位于振荡器电极的后面并且延伸穿过该路径。 来自测量和振荡器电极的信号被提供给信号处理装置。 信号处理装置处理信号以相对于检测由通过电极的导电安全线引起的信号之间的相移。 相移的检测降低了对钞票摆动引起的变化的敏感性以及纸币与传感器间隔距离的变化。
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公开(公告)号：US5672859A
公开(公告)日：1997-09-30
申请号：US388254
申请日：1995-02-13
申请人： Johan Samyn , Walter Van Loock
发明人： Johan Samyn , Walter Van Loock
IPC分类号： G01V3/12 , G01N22/00 , G01V3/00 , G01V15/00 , G03G21/04 , G07D7/00 , G07D7/04 , G07D7/10 , G06K7/10 , G03G21/00 , G06K7/08
CPC分类号： G03G21/046 , G01N22/00 , G07D7/10
摘要： A reproduction apparatus (14) for reproducing documents (12) which comprise a base material. The apparatus comprises a platen (10) for forming a scanning area and for positioning the documents (12) on its one side, scanning means (18) for scanning the scanning area, and means for obtaining a relative movement between the scanning means and the documents in order to allow for the scanning. The scanning means (18) comprise a microwave system which is constituted by microwave transceivers (26) arranged in an array such that they can detect the presence of particles (13) which have electromagnetic properties which are substantially different from the electromagnetic properties of the base material and which are incorporated in at least a part of the documents (12), irrespective of the position of the documents (12) on the scanning area.
摘要翻译： 一种用于再现包括基材的文档（12）的再现设备（14）。 该装置包括用于形成扫描区域并用于在其一侧定位文件（12）的压板（10），用于扫描扫描区域的扫描装置（18），以及用于获得扫描装置和扫描装置 文件为了允许进行扫描。 扫描装置（18）包括微波系统，该微波系统由布置成阵列的微波收发器（26）构成，使得它们能够检测具有与基极的电磁特性基本不同的电磁特性的颗粒（13）的存在 材料，并且其被结合在文档（12）的至少一部分中，而与文档（12）在扫描区域上的位置无关。
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公开(公告)号：US5279403A
公开(公告)日：1994-01-18
申请号：US917367
申请日：1992-07-23
摘要： A security thread detector for verifying the authenticity of banknotes. In the preferred embodiment, the invention comprises a housing with a passage through which banknotes can be passed, wherein the housing also comprises a waveguide, a microwave oscillator for generating microwaves and two resonating slots on a wall of the waveguide, and a microwave detector. After a banknote is inserted through the passageway, the microwave diode produces an analog signal that is proportional to the microwave strength. The diode and the slots are arranged such that the radiated power from each slot is one hundred eighty degrees out-of-phase. If a banknote has no security thread, then the detector receives a balanced signal. If the banknote contains a security thread, the thread interferes with one of the radiating slots. This interference causes an imbalance condition and a corresponding signal is sent from the detector diode. The resulting signal is then sent to a microprocessor which activates an appropriate indicator. This indicator notifies the user of the presence or absence of a security thread; thus, the user can determine whether the banknote is counterfeit.
摘要翻译： 一种用于验证纸币真实性的安全线程检测器。 在优选实施例中，本发明包括具有可以通过钞票的通道的壳体，其中壳体还包括波导，用于产生微波的微波振荡器和波导壁上的两个谐振槽以及微波检测器。 在通过通道插入纸币之后，微波二极管产生与微波强度成比例的模拟信号。 二极管和槽被布置成使得来自每个槽的辐射功率是异相百分之八十度。 如果钞票没有安全线程，则检测器接收到平衡信号。 如果纸币包含安全线程，则线程干扰其中一个辐射槽。 该干扰导致不平衡状况，并且从检测器二极管发送相应的信号。 然后将所得到的信号发送到微处理器，该微处理器激活适当的指示器。 该指示灯通知用户安全线程的存在与否; 因此，用户可以确定纸币是否是伪造的。
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4.发明授权Sheet articles of non-conductive material marked for identification purposes, and method and apparatus for identifying such articles 失效用于识别目的的非导电材料的片材制品，以及用于识别这种制品的方法和装置
公开(公告)号：US4408156A
公开(公告)日：1983-10-04
申请号：US138738
申请日：1980-04-09
申请人： Pierre Veys
发明人： Pierre Veys
IPC分类号： G06K7/01 , D21H21/48 , G01N22/00 , G01V3/12 , G06K7/08 , G06K19/06 , G07D7/00 , G07D7/10 , G01R27/04
摘要： A method of producing an identification signal for a sheet article of non-conductive material, which article is marked for identification purposes by the incorporation therein of a small quantity of very thin conductive fibers which are capable of absorbing and reflecting certain substantial proportions of microwave radiation energy impinging thereon, which comprise placing the part of said article in which the very thin conductive fibers are incorporated in the path of an unguided microwave beam, measuring the excess of microwave radiation energy arrested over the energy reflected and producing an output signal which is representative of the presence of such excess.
摘要翻译： 一种生产用于非导电材料的片状物品的识别信号的方法，该物品通过引入少量非常薄的导电纤维而被标记用于鉴定目的，该导电纤维能够吸收和反射某些相当大比例的微波辐射 冲击其上的能量，其包括将其中非常薄的导电纤维的非导电纤维的一部分放置在非导向微波束的路径中的部分，测量在反射的能量上阻止的微波辐射能量的过量，并产生代表性的输出信号 存在这样的过剩。
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5.发明申请公开(公告)号：US20170122881A1
公开(公告)日：2017-05-04
申请号：US15405036
申请日：2017-01-12
申请人： Fabrica Nacional De Moneda Y Timbre - Real Casa De La Moneda , Consejo Superior De lnvestigaciones Cientificas, C.S.l.C.
发明人： Vicente Garcia JUEZ , Jose Francisco Fernandez LOZANO , Javier Gamo ARANDA , Miguel Angel Rodriguez BARBERO , Juan Jose Romero FANEGO
IPC分类号： G01N22/00 , B42D25/333 , B42D25/355 , B42D25/328 , G06K19/14 , B42D25/23 , G07D7/10 , B41M3/14 , C09D5/32 , B42D25/29 , B42D25/378
CPC分类号： G01N23/06 , B41M3/144 , B42D25/00 , B42D25/23 , B42D25/29 , B42D25/328 , B42D25/333 , B42D25/355 , B42D25/378 , B42D2033/20 , B42D2033/32 , C09D5/32 , C09D7/61 , C09D7/70 , G01N22/00 , G06K7/10009 , G06K19/14 , G07D7/06 , G07D7/10 , G07D7/1205
摘要： The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.
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公开(公告)号：US06949757B2
公开(公告)日：2005-09-27
申请号：US10681129
申请日：2003-10-09
CPC分类号： H04N1/00846 , G03G21/046 , G07D7/10 , G07D7/20 , H04N1/00864 , H04N1/00872 , H04N1/00875
摘要： The present specific document determining apparatus according to the present invention comprises a microwave sensor for irradiating a microwave to and scanning a document, detecting a reflected portion of the irradiated microwave, outputting a first detection signal, again irradiating a microwave and scanning the document after the document is placed on a contact glass, detecting a reflected portion of the irradiated microwave, and outputting a second detection signal; a signal processing section for using the first detection signal as a reference signal and comparing a level of the reference signal to a level of the second detection signal to make determination as to whether metallic fiber is included in the document or not, and a controller for making determination as to whether the document is a specific one or not according to a result of determination by the signal processing section.
摘要翻译： 根据本发明的本具体文件确定装置包括微波传感器，用于向原稿照射微波并扫描原稿，检测被照射的微波的反射部分，输出第一检测信号，再次照射微波并扫描文件 文件放置在接触玻璃上，检测被照射的微波的反射部分，并输出第二检测信号; 信号处理部分，用于使用第一检测信号作为参考信号，并将参考信号的电平与第二检测信号的电平进行比较，以确定金属纤维是否包括在文档中;以及控制器， 根据信号处理部的判断结果，确定文件是否是特定的。
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公开(公告)号：US5661552A
公开(公告)日：1997-08-26
申请号：US543912
申请日：1995-10-17
申请人： Hidefumi Nishigai
发明人： Hidefumi Nishigai
IPC分类号： B42D15/10 , B41M3/14 , G03G15/04 , G03G21/04 , G06K19/067 , G07D7/00 , G07D7/04 , G07D7/10 , G07D7/20 , H04N1/04 , H04N1/40 , G06K9/62
CPC分类号： G06K19/067 , G07D7/10
摘要： Metal fibers are mixed, at a predetermined mixing ratio, into a document for which forgery should be prevented. In reading a document, microwaves are applied to the document via a transmission antenna and reflected microwaves are received via a reception antenna. The document includes a portion in which the microwave reception level falls within a predetermined range and which portion is longer than a predetermined length, the document is regarded as a forgery preventive document and the copying operation is stopped. Further, a registration guide is so formed as to reflect microwaves at a certain reflectance. Influences of variations due to a temperature change and aging are compensated by measuring a reception level corresponding to the registration guide.
摘要翻译： 将金属纤维以预定的混合比混合成要防止伪造的文件。 在读取文件时，通过发送天线将微波应用于文件，经由接收天线接收反射的微波。 文档包括微波接收电平落入预定范围并且哪个部分长于预定长度的部分，该文档被认为是防伪文件，并且复制操作被停止。 此外，配准引导件形成为以一定的反射率反射微波。 通过测量对应于登记指南的接收电平来补偿由于温度变化和老化引起的变化的影响。
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8.发明授权
公开(公告)号：US4566122A
公开(公告)日：1986-01-21
申请号：US481243
申请日：1983-04-08
申请人： Johan Samyn
发明人： Johan Samyn
CPC分类号： G01N22/00 , G06K19/0672 , G07D7/10
摘要： An apparatus for the identification by microwaves of a sheet article composed of an electrically non-conductive material, the article being marked for identification by the incorporation therein of electrically conductive fibers. The apparatus comprises: at least two microwave emitter devices one adjacent the other; detectors of waves reflected by the article when advanced before said devices; a screen placed in front of at least one of the emitters; and, regulating means for raising the sensitivity of the identification signals by setting the distances between the emitter device, screen and support for the interposed article.
摘要翻译： 用于通过微波识别由非导电材料构成的片材制品的装置，所述制品通过引入导电纤维而被标记以进行识别。 该装置包括：至少两个彼此相邻的微波发射器件; 所述物品在所述装置前进行时反射的波的检测器; 放置在至少一个发射器前面的屏幕; 以及调节装置，用于通过设置发射器装置，屏幕和插入物品的支撑件之间的距离来提高识别信号的灵敏度。
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公开(公告)号：US10921264B2
公开(公告)日：2021-02-16
申请号：US16326529
申请日：2017-08-18
摘要： Utilizing microwave reflections to compare a reference device with counterfeit and/or aging devices under test. The reflection from the device under test varies based on certain properties, which results in each device having a unique and intrinsic electromagnetic signature. Comparisons of the electromagnetic signature of the device under test to the electromagnetic signature of a reference device enable evaluating the acceptability of the device under test.
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公开(公告)号：US10319170B2
公开(公告)日：2019-06-11
申请号：US15544379
申请日：2015-07-13
发明人： Guanglu Liu , Jian Chen , Zhuming Xiao , Weirui Zheng
IPC分类号： G07D7/10 , G07D7/183 , G07D7/00 , G01N21/3563 , G06K9/46 , G06K9/62 , G07D7/12 , G07D7/20 , G07D7/202
摘要： A folded bill recognizing method and a folded bill recognizing device are provided. The folded bill recognizing device includes: a bill input port configured to receive a to-be-recognized bill or a sample bill; a signal collecting module configured to collect a CIS image of the bill, to obtain an infrared transmission image T and an infrared reflection image F; a signal recognizing module configured to recognize whether the to-be-recognized bill has a fold; and a receiving/rejecting module configured to perform a receiving or rejecting operation on the to-be-recognized bill. The device can effectively recognize a folded bill.
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