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    • 11. 发明授权
    • Apparatus, system, and method for electrostatic discharge protection
    • 静电放电保护装置,系统及方法
    • US07567419B2
    • 2009-07-28
    • US11150559
    • 2005-06-10
    • Lin LuAndrew Stephen Poynot
    • Lin LuAndrew Stephen Poynot
    • H01H47/00H02H7/20
    • H05K9/0067H01H2239/008H04M1/23H05K1/0256H05K1/0259
    • An apparatus, system, and method provide electrostatic discharge (ESD) protection in electronic devices by guiding electrostatic charges to a ground through ESD channels within electrical insulation sheet. The ESD channels are positioned within the electrical insulation sheet to provide electrical paths to ground having a lower impedance than electrical paths to protected areas covered by the electrical insulation sheet. Accordingly, an ESD follows the path of least resistance safely to ground rather than to a critical component within the electronic device. In the exemplary embodiment, the ESD channels are openings in a dome contact layer of a keypad where the openings are positioned over one or more ground areas of a printed circuit board (PCB) and the insulting material of the dome contact layer covers areas of the PCB that are protected from ESD. By implementing dedicated GPIO lines, grounded metal domes cover the signal pads in the target discharge area to protect the GPIO lines from ESD. Device components are protected from ESD without additional ports or insulation.
    • 设备,系统和方法通过在电绝缘片内通过ESD通道将静电电荷引导到地面来在电子设备中提供静电放电(ESD)保护。 ESD通道位于电绝缘片内,以提供具有比电绝缘片覆盖的保护区的电路的阻抗低的接地电路。 因此,ESD将安全地遵循最小电阻的路径接地,而不是电子设备内的关键部件。 在示例性实施例中,ESD通道是键盘的圆顶接触层中的开口,其中开口位于印刷电路板(PCB)的一个或多个接地区域上方,并且圆顶接触层的绝缘材料覆盖 受ESD保护的PCB。 通过实现专用GPIO线,接地金属圆顶覆盖目标放电区域中的信号焊盘,以保护GPIO线免受ESD。 器件组件免受ESD保护,无需附加端口或绝缘。
    • 12. 发明授权
    • Stack-up configuration for a wireless communication device
    • 无线通信设备的堆叠配置
    • US07336228B2
    • 2008-02-26
    • US11014541
    • 2004-12-15
    • Lin LuSidney Sitachitt
    • Lin LuSidney Sitachitt
    • H01Q1/24
    • H04B1/3838
    • A stack-up configuration for a wireless communication device includes a display and keypad on a front face of a housing for the device. A battery for providing power to the components of the wireless communication device is stacked behind the display. A circuit board that holds processing and RF circuitry for the wireless communication device is stacked behind the battery, with a top surface of the circuit board adjacent the battery. Noisy circuitry on the circuit board is covered by shielding on a back surface of the circuit board. An external or internal antenna is connected to the circuit board at a feed point. The antenna in one embodiment of the invention is stacked behind the circuit board, that is, between a back face of the housing and the back surface of the circuit board. The location of the battery between the display and the circuit board lowers the amount of energy radiating from the wireless communications device in the concerned near field range.
    • 用于无线通信设备的堆叠配置包括在用于设备的外壳的前面上的显示器和小键盘。 用于向无线通信设备的组件提供电力的电池堆叠在显示器的后面。 保持用于无线通信设备的处理和RF电路的电路板堆叠在电池后面,电路板的顶表面与电池相邻。 电路板上的嘈杂电路被电路板背面的屏蔽覆盖。 外部或内部天线在馈电点连接到电路板。 本发明的一个实施例中的天线堆叠在电路板的后面,即壳体的背面和电路板的后表面之间。 电池在显示器和电路板之间的位置降低了在相关近场范围内从无线通信设备辐射的能量的量。