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    • 3. 发明授权
    • Electronic locking system with an access-control solenoid
    • 具有门禁电磁阀的电子锁定系统
    • US6108188A
    • 2000-08-22
    • US232032
    • 1999-01-15
    • William D. DenisonLawrence C. BrownfieldBradley S. Silvers
    • William D. DenisonLawrence C. BrownfieldBradley S. Silvers
    • E05B47/00G07C9/00H01H9/00
    • E05B47/00G07C9/00142G07C9/00674
    • An electronic locking system with an access-control solenoid for controlling the operation of a locking mechanism is substantially immune to "hot-wiring." The locking system includes an actuating circuit for energizing the access-control solenoid. The actuating circuit is responsive to a modulated drive signal of a selected frequency to apply current through the solenoid to retract its plunger, while blocking externally applied DC voltages from reaching the solenoid. When an access code is entered through an input device, a control circuit of the locking system verifies the access code. When the code is verified, the control circuit generates the modulated drive signal to energize the solenoid to retract the plunger, thereby allowing the locking mechanism to be unlocked. After the plunger is retracted, the frequency of the modulated drive signal is changed to reduce the power consumption for retaining the plunger in its retracted position.
    • 具有用于控制锁定机构的操作的访问控制螺线管的电子锁定系统基本上不受“热接线”的影响。 锁定系统包括用于为访问控制螺线管通电的致动电路。 致动电路响应于所选频率的调制驱动信号,以通过螺线管施加电流来缩回其柱塞,同时阻挡外部施加的DC电压到达螺线管。 当通过输入设备输入访问代码时,锁定系统的控制电路验证访问代码。 当代码被验证时,控制电路产生调制的驱动信号以激励螺线管以使柱塞缩回,从而允许锁定机构解锁。 在柱塞缩回之后,改变调制驱动信号的频率以减小将柱塞保持在缩回位置的功率消耗。
    • 10. 发明授权
    • Electronic access control device
    • 电子门禁控制装置
    • US07741952B2
    • 2010-06-22
    • US11708730
    • 2007-02-21
    • William D. DenisonLawrence C. BrownfieldBradley S. Silvers
    • William D. DenisonLawrence C. BrownfieldBradley S. Silvers
    • H01L29/80
    • G07C9/00571B60R25/102B62H5/20G07C9/00142G07C9/00182G07C9/0069G07C9/00896G07C9/00912G07C2009/00793G07F7/1008G07F7/1025Y10T70/7006Y10T70/7113
    • An electronic lock utilizes two microprocessors remote from each other for enhanced security. The first microprocessor is disposed close to an input device such as a keypad, and the second microprocessor is disposed close to the lock mechanism and well protected from external access. The first microprocessor transmits a communication code to the second microprocessor when it receives via the input device an access code that matches a preset access code. The second microprocessor opens the lock if the transmitted communication code matches a preset communication code. The dual-microprocessor arrangement is advantageously used in a voice controlled access control system and in a motorcycle ignition control system. The present invention further provides an electronic access control system which has a master electronic key having a preset number of access, and an electronic alarm system for a bicycle that has a remote control mounted in the helmet of the rider.
    • 电子锁使用两个彼此远离的微处理器来提高安全性。 第一微处理器设置在诸如键盘的输入设备附近,并且第二微处理器设置在靠近锁定机构并且被良好地保护以防止外部访问。 当第一微处理器经由输入设备接收到与预设的访问代码相匹配的访问代码时,第一微处理器将通信代码发送到第二微处理器。 如果发送的通信代码与预设的通信代码相匹配,则第二个微处理器打开锁定。 双微处理器布置有利地用于语音控制访问控制系统和摩托车点火控制系统中。 本发明还提供一种电子访问控制系统,其具有预定数量的访问的主电子钥匙以及安装在骑手的头盔中的具有遥控器的自行车的电子警报系统。