专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1994022114A1 A CAPACITIVE VERIFICATION DEVICE FOR A SECURITY THREAD EMBEDDED WITHIN CURRENCY PAPER 审中-公开
标题翻译：用于在货币纸上嵌入的安全螺纹的电容验证装置
公开(公告)号：WO1994022114A1
公开(公告)日：1994-09-29
申请号：PCT/US1994002709
申请日：1994-03-14
申请人： AUTHENTICATION TECHNOLOGIES, INC.
发明人： AUTHENTICATION TECHNOLOGIES, INC. , HARBAUGH, Steven, K.
IPC分类号： G07D07/00
CPC分类号： G01V3/088 , G07D7/026
摘要： A verification device for a security thread (142) embedded within currency paper includes two or more sensor channels (102, 104), each channel comprising a sensor plate (106, 108) and a guard plate (110, 112) disposed adjacent to one another. The sensor plate and guard plate of one channel are in a planar relationship with the sensor plate and guard plate of all other channels. A transisstor (116, 118) has its base (120, 122) connected to the sensor plate and its emitter (124, 126) connected to the guard plate, thereby effectively removing any stray capacitance between the sensor and guard plates. The output of the transistor at its emitter (124, 126) is indicative of the amount of the electrical charge on the sensor plate. Signal processing electronics disposed after the transistor convert the sensor plate capacitance into an electrical signal whose pulse width is proportional to the amount of sensor plate capacitance. A valid currency having a security thread embedded therein passes by a sensor plate and varies the amount of capacitance of the plate. The signal processing electronics is responsive to this variation in sensor plate capacitance and provides a signal indicative of the valid security thread.
摘要翻译：嵌入在纸币内的安全线程（142）的验证装置包括两个或更多个传感器通道（102,104），每个通道包括传感器板（106,108）和邻近一个设置的保护板（110,112）另一个。一个通道的传感器板和防护板与所有其他通道的传感器板和防护板处于平面关系。一个跨架（116,118）具有连接到传感器板及其发射器（124,126）的底座（120,122），其连接到防护板，从而有效地去除了传感器和保护板之间的任何杂散电容。晶体管在其发射极（124,126）处的输出表示传感器板上的电荷量。在晶体管将传感器板电容转换成电信号之后设置的信号处理电子器件，其脉冲宽度与传感器板电容量成比例。具有嵌入其中的安全线的有效货币通过传感器板并改变板的电容量。信号处理电子器件响应传感器板电容的这种变化，并提供指示有效安全线程的信号。

2. 发明申请

WO1998019277A1 WIDE EDGE LEAD CURRENCY THREAD DETECTION SYSTEM 审中-公开
标题翻译：宽边缘电流螺纹检测系统
公开(公告)号：WO1998019277A1
公开(公告)日：1998-05-07
申请号：PCT/US1997014880
申请日：1997-08-22
申请人： AUTHENTICATION TECHNOLOGIES, INC.
发明人： AUTHENTICATION TECHNOLOGIES, INC. , HARBAUGH, Steven, K.
IPC分类号： G07D07/00
CPC分类号： G07D7/026
摘要： A document verification device detects the presence of a metal security thread embedded in a document such as currency paper. The device includes a sensor pad arrangement and corresponding signal processing electronics. The arrangement includes a single central sensing pad flanked by an array of twenty-seven pairs of outer pads. Each pair of outer pads in the array is electrically connected together. The document to be verified is transported with respect to the sensor pad arrangement such that the wide edge of the document is the leading edge. As the thread passes over the array, a pattern is sequenced throughout the pads fast enough such that, at a point in time, the thread will bridge the central sensing pad with a pair of outer two pads first having the positive voltage level portion of the square wave signal applied thereto, and then later the thread will bridge the central sensing pad with the same pair of outer pads now having the negative voltage level portion of the square wave signal applied thereto. The electronics senses the signal coupled to the sensing pad and interprets a valid security thread as being present in the currency from certain characteristics of the sensed signal.
摘要翻译：文件验证装置检测嵌入诸如货币纸的文件中的金属安全线程的存在。该装置包括传感器垫布置和对应的信号处理电子装置。该装置包括一个单独的中央传感垫，其侧面是二十七对外垫的阵列。阵列中的每对外部焊盘电连接在一起。要验证的文件相对于传感器垫布置传送，使得文档的宽边缘是前缘。当线程通过阵列时，整个焊盘的图案被顺序地足够快，使得在某个时间点，线将桥接中心感测板与一对外部两个焊盘，其首先具有正的电压电平部分施加到其上的方波信号，然后螺纹将与现在具有施加到其上的方波信号的负电压电平部分的同一对外焊盘桥接中心感测焊盘。电子装置感测耦合到感测板的信号，并将有效的安全线程解释为以感测信号的某些特性存在于货币中。

3. 发明申请

WO1994020932A1 A CAPACITANCE-BASED VERIFICATION DEVICE FOR A SECURITY THREAD EMBEDDED WITHIN CURRENCY PAPER 审中-公开
标题翻译：一种基于电容纸的安全螺纹的验证装置
公开(公告)号：WO1994020932A1
公开(公告)日：1994-09-15
申请号：PCT/US1993007121
申请日：1993-07-29
申请人： AUTHENTICATION TECHNOLOGIES, INC.
发明人： AUTHENTICATION TECHNOLOGIES, INC. , HARBAUGH, Steven, K.
IPC分类号： G07D07/00
CPC分类号： G07D7/026 , G06K7/081 , G06K7/14 , G07D7/0034
摘要： A verification device for a security thread embedded within currency paper includes a pair of capacitive plates having applied thereto time-varying electronic signals that are 180 DEG out of phase. Disposed between the plates is a sensor element comprising a cylindrical wire dimensionally equal to the security thread. A guard electrode surrounds the sensor; the guard, sensor, and plates comprising a capacitance bridge. When the security thread in the currency is adjacent to the sensor and in proximity thereto, a capacitance imbalance occurs in the bridge. Electronic circuitry is responsive to this imbalance and provides an indication of a valid security thread embedded within the proffered currency paper.
摘要翻译：嵌入在纸币内的安全线程的验证装置包括一对电容板，其对其相差180度的时变电子信号应用。设置在板之间的传感器元件包括尺寸上等于安全线的圆柱形线。保护电极围绕传感器; 防护罩，传感器和板包括电容桥。当货币的安全线与传感器相邻并且靠近传感器时，电桥不平衡。电子电路响应于这种不平衡，并提供嵌入提供的纸币内的有效的安全线索的指示。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式