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    • 2. 发明授权
    • Printed circuit reader/exciter coil for vehicle security system
    • 用于车辆安全系统的印刷电路读取器/励磁线圈
    • US5532522A
    • 1996-07-02
    • US254717
    • 1994-06-06
    • George J. DietzRandall E. HammerStephen M. BascheKevin J. Hawes
    • George J. DietzRandall E. HammerStephen M. BascheKevin J. Hawes
    • E05B49/00B60R25/04G07C9/00H04B1/59B60R25/00
    • G07C9/00182B60R25/04B60R25/2063B60R25/24G07C2009/00777
    • A transponder embedded in a key and a reader/exciter coil surrounding the lock cylinder are inductively linked to provide energization to the transponder, causing it to emit a digital identification code. A control circuit associated with the coil supplies energizing coil current and analyzes the emitted code to verify the authenticity of the key. The coil and control circuit are contained in a planar multi-layer hardboard printed circuit having high circuit integrity and being very thin for accommodation in the lock assembly. Alternatively, the coil and control circuit are contained in a flexible printed circuit. There the coil includes two opposed elongated legs which are positioned on opposite sides of the lock cylinder and folded in a way to conform to the cylinder surface, forming in effect a very thin cylindrical coil. An extension on the printed circuit form a path to the control circuit which is remote from the cylinder.
    • 嵌入钥匙中的应答器和围绕锁芯的读取器/激励器线圈被感应地链接以向应答器提供通电,从而使其发射数字识别码。 与线圈相关联的控制电路为线圈电流供电并分析发射的代码以验证密钥的真实性。 线圈和控制电路包含在具有高电路完整性并且非常薄以用于在锁组件中容纳的平面多层硬纸板印刷电路中。 或者,线圈和控制电路包含在柔性印刷电路中。 在那里,线圈包括两个相对的细长支腿,其位于锁芯的相对侧上,并以与圆筒表面相符的方式折叠,实际上形成非常薄的圆柱形线圈。 印刷电路上的延伸部分形成了远离气缸的控制电路的路径。