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    • 1. 发明授权
    • Currency verification device
    • 货币验证装置
    • US5434427A
    • 1995-07-18
    • US078687
    • 1993-06-21
    • Timothy T. CraneRobert J. DanekSteven K. HarbaughRichard A. Menelly
    • Timothy T. CraneRobert J. DanekSteven K. HarbaughRichard A. Menelly
    • G06K7/08G06K7/14G07D7/02G07D7/12G06K5/00
    • G07D7/002G06K7/081G06K7/14G07D7/026
    • 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.
    • 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程和货币纸张。 采用额外的光学电路来检测货币表面上的假冒标记。
    • 2. 发明授权
    • Currency paper and banknote verification device
    • 货币纸币和钞票验证装置
    • US5308992A
    • 1994-05-03
    • US814824
    • 1991-12-31
    • Timothy T. CraneRobert J. DanekSteven K. HarbaughRichard A. Menelly
    • Timothy T. CraneRobert J. DanekSteven K. HarbaughRichard A. Menelly
    • G06K7/08G06K7/14G07D7/02G07D7/12G06K5/00
    • G07D7/002G06K7/081G06K7/14G07D7/026
    • 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.
    • 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。
    • 4. 发明授权
    • Security paper verification device
    • 安全纸验证装置
    • US4980569A
    • 1990-12-25
    • US488230
    • 1990-03-05
    • Timothy T. CraneRichard A. MenellyRobert J. Danek
    • Timothy T. CraneRichard A. MenellyRobert J. Danek
    • G07D7/00G07D7/12
    • G07D7/128G07D7/12
    • A photodiode and phototransistor are positioned on one side of a document subjected to verification for authenticity under both transmitted and reflected light. A corresponding photodiode and phototransistor on the opposite side of the document are arranged for receiving the light transmitted through the currency if the security feature is not present. A logic circuit determines the presence or absence of the security feature and correspondingly provides visual or audible indication thereof. The photodiodes, phototransistors and circuit 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.
    • 光电二极管和光电晶体管被放置在经过验证的文件的一侧,在传输和反射光下都具有真实性。 布置在文件相对侧的对应的光电二极管和光电晶体管,用于接收通过货币传输的光,如果不存在安全特征。 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,光电晶体管和电路被布置在附接到诸如收银机的货币接收装置的外壳内。 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。
    • 5. 发明授权
    • Microwave security thread detector
    • 微波安全线检测器
    • US5279403A
    • 1994-01-18
    • US917367
    • 1992-07-23
    • Steven K. HarbaughTimothy T. Crane
    • Steven K. HarbaughTimothy T. Crane
    • G07D7/00G07D7/10G07D7/12
    • G07D7/128G07D7/10
    • 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.
    • 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。