Method and system for identifying a security document
    41.
    发明授权
    Method and system for identifying a security document 有权
    识别安全文件的方法和系统

    公开(公告)号:US09563999B2

    公开(公告)日:2017-02-07

    申请号:US14412576

    申请日:2013-07-01

    发明人: Robert Whiteman

    摘要: A method is provided of identifying a security document using an identifying device. The identifying device is provided with a capacitance sensor and a second sensor. The method includes capacitively coupling a first element of the security document with the capacitance sensor and obtaining first data from the first element using the capacitance sensor. Second data is also obtained from the security document using the second sensor. Output data is then generated based upon the first and second data. A corresponding device and system are also presented.

    摘要翻译: 提供了一种使用识别装置识别安全文档的方法。 识别装置设置有电容传感器和第二传感器。 该方法包括将安全文件的第一元件电容耦合到电容传感器,并使用电容传感器从第一元件获得第一数据。 也可以使用第二传感器从安全文档获得第二数据。 然后基于第一和第二数据生成输出数据。 还提出了相应的设备和系统。

    Checking objects including bistable magnetic devices, to be checked for
authenticity
    45.
    发明授权
    Checking objects including bistable magnetic devices, to be checked for authenticity 失效
    检查包括双稳态磁性装置的物体,以检查其真实性

    公开(公告)号:US5583333A

    公开(公告)日:1996-12-10

    申请号:US461247

    申请日:1995-06-05

    摘要: A number of bistable magnetic devices are dispersed in a scanning region of a checking object. Each bistable magnetic device is formed of a nonmagnetic material which undergoes a drastic flux reversal attributable to the Large Barkhausen effect when subjected in succession to first and second external magnetic fields of opposite directions. A processing apparatus comprises magnetic generators for generating magnetic fields of opposite directions, a transportation mechanism for moving the checking object at constant speed, and a coil for detecting magnetic pulses, which are generated as the bistable magnetic devices are subjected to the flux reversal, as changes of electromagnetic induction voltage. A detection signal for the scanning region detected by the apparatus is converted into a cipher code and then recorded in a code indicator section of the checking object. In checking the authenticity of the object, the detection signal obtained by scanning the scanning region and a code for collation obtained by decoding the cipher code recorded in the code indicator section are compared, and it is concluded that the checking object is real when the detection signal and the collation code correspond to each other.

    摘要翻译: 多个双稳态磁性器件分散在检查对象的扫描区域中。 每个双稳态磁性器件由非磁性材料形成,当受到相反方向的第一和第二外部磁场的影响时,它会经受大的巴克豪森效应引起的急剧的磁通反转。 一种处理装置包括用于产生相反方向的磁场的磁力发生器,用于以恒定速度移动检查对象的传送机构和用于检测磁脉冲的线圈,其作为双稳态磁性装置产生的磁通反转,作为 电磁感应电压的变化。 由该装置检测的扫描区域的检测信号被转换成密码,然后记录在检查对象的代码指示部分中。 在检查对象的真实性时,比较通过扫描扫描区域获得的检测信号和通过对记录在代码指示器部分中的密码进行解码获得的核对代码,并且得出结论,当检测对象为真时 信号和对照码对应。

    Detector for a security thread having at least two security detection
features
    46.
    发明授权
    Detector for a security thread having at least two security detection features 失效
    具有至少两个安全检测功能的安全线程的检测器

    公开(公告)号:US5535871A

    公开(公告)日:1996-07-16

    申请号:US520374

    申请日:1995-08-29

    摘要: A security thread for documents such as currency and banknote paper comprises a plastic substrate coated with a plurality of discrete metallic patterns of electrically-conductive material, such as aluminum. The metallic patterns are arranged on the surface of the thread to indicate the particular denomination of the currency paper. The thread is typically embedded entirely with the currency paper. A first embodiment of a verification device determines the authenticity and denomination of the currency paper by counting the number of conductive metallic patterns on the thread and comparing the count to various count ranges. A second embodiment of the verification device scans the thread in a narrow-edge direction such that it simultaneously encounters all of the conductive thread segments. Capacitive coupling of an oscillator signal into one or more sensing pads result in an electrical signal having a distinct pattern. This signal is compared to a plurality of signals stored in memory that are indicative of valid thread denominations.

    摘要翻译: 用于诸如货币和钞票纸的文件的安全线包括涂覆有诸如铝的导电材料的多个离散金属图案的塑料基板。 金属图案布置在线的表面上以指示货币纸的特定面额。 线程通常用纸币完全嵌入。 验证装置的第一实施例通过对线程上的导电金属图案的数量进行计数并将计数与各种计数范围进行比较来确定货币纸的真实性和面额。 验证装置的第二实施例在窄边缘方向扫描线,使得它同时遇到所有的导电线段。 将振荡器信号电容耦合到一个或多个传感垫中导致具有不同图案的电信号。 该信号与存储在存储器中的指示有效线程面值的多个信号进行比较。

    Currency paper security thread verification device
    48.
    发明授权
    Currency paper security thread verification device 失效
    货币纸张安全线程验证装置

    公开(公告)号:US5419424A

    公开(公告)日:1995-05-30

    申请号:US234292

    申请日:1994-04-28

    IPC分类号: G07D7/00 G07D7/02

    CPC分类号: G07D7/026

    摘要: A currency paper has a security thread embedded therein. The thread comprises a plastic substrate having a plurality of alphanumeric, metallic, electrically-conductive characters formed thereon. The characters have predetermined heights and widths and spacings therebetween. The verification device comprises an oscillator electrode and associated horizontal and vertical electrodes. A time-varying oscillator signal is coupled to the oscillator electrode. The spacing of the horizontal and vertical electrodes in relation to the oscillator electrode is determined by the spacing between the metallized characters on the thread. A valid security thread capacitively couples the oscillator signal into the horizontal electrode but not the vertical electrode. On the other hand, a counterfeit security thread will couple the oscillator signal into both the horizontal and vertical electrodes. Signal processing electronics is provided to sense these valid and counterfeit conditions.

    摘要翻译: 货币纸具有嵌入其中的安全线程。 螺纹包括塑料基板,其上形成有多个字母数字的,金属的导电字符。 这些字符之间具有预定的高度,宽度和间距。 验证装置包括振荡电极和相关联的水平和垂直电极。 时变振荡器信号耦合到振荡器电极。 水平和垂直电极相对于振荡器电极的间距由线上金属化字符之间的间距决定。 有效的安全线程将振荡器信号电容耦合到水平电极,而不是垂直电极。 另一方面,假冒安全线程将振荡器信号耦合到水平和垂直电极。 提供信号处理电子设备来感测这些有效和假冒的条件。

    Currency paper and banknote verification device
    49.
    发明授权
    Currency paper and banknote verification device 失效
    货币纸币和钞票验证装置

    公开(公告)号:US5308992A

    公开(公告)日:1994-05-03

    申请号:US814824

    申请日:1991-12-31

    摘要: A photodiode and a phototransistor are positioned on opposite sides of a document subjected to verification for authenticity under transmitted light. A logic circuit determines the presence or absence of the security feature and correspondingly provides visual or audible indication thereof. The photodiode, phototransistor and related circuitry are arranged within an enclosure that is attached to a currency receiving device such as a cash register. The visual or audible indicators are mounted on the cash register for immediate indication of the currency verification to the cashier. A simplified capacitive proximity sensor can be employed, per se, for inexpensive applications or for redundant verification in combination with an optical detector. The shape of the capacitive sensor is configured to that of the security thread to discriminate between the security thread and the currency paper. Additional optical circuits are employed to detect counterfeit markings on the currency surface.

    摘要翻译: 光电二极管和光电晶体管位于经过验证的文件的相对两侧,在透射光下的真实性。 逻辑电路确定安全特征的存在或不存在,并且相应地提供其可视或可听见的指示。 光电二极管,光电晶体管和相关电路被布置在附接到货币接收装置(例如收银机)的外壳内。 视觉或听觉指标安装在收银机上,以便立即向收银员显示货币验证。 简单的电容式接近传感器本身可以用于廉价的应用或与光学检测器组合的冗余验证。 电容传感器的形状被配置为安全线程的形状,以区分安全线和钞票。 采用额外的光学电路来检测货币表面上的假冒标记。