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    • 7. 发明授权
    • Detection of intended key activation on a mobile device
    • 检测移动设备上预期的密钥激活
    • US08294601B2
    • 2012-10-23
    • US12617993
    • 2009-11-13
    • Colin Mark WernerLawrence Edward KuhlKeizo MaruiChao ChenKen Wu
    • Colin Mark WernerLawrence Edward KuhlKeizo MaruiChao ChenKen Wu
    • H03M11/00
    • H03K17/9622G06F1/3231G06F3/0202H03K2217/960755Y02D10/173
    • A method and device are provided for preventing unintended activation of one or more hard keys on a mobile device. A capacitive sensor senses a capacitance level at a location on the keyboard, to detect whether a hard key is being actuated by a human hand or human skin. If the sensed capacitance level exceeds a key activation capacitance threshold, a key circuit connection is identified as being associated with an intended hard key activation. If the measured capacitance level is within an uncertainty tolerance below the key activation capacitance threshold, a secondary capacitance level is measured at a non-keyboard location. The key circuit connection is identified as being associated with an intended hard key activation when the measured secondary capacitance level exceeds a key activation confirmation threshold. Additional secondary indicators can be obtained based on size and shape capacitance pattern, timing information, and an active application or device state.
    • 提供了一种用于防止移动设备上的一个或多个硬键的意外激活的方法和设备。 电容传感器感测键盘上的位置处的电容电平,以检测硬键是由人的手还是人皮肤致动。 如果感测到的电容电平超过键激活电容阈值,则将键电路连接识别为与预期的硬键激活相关联。 如果测量的电容电平在低于键激活电容阈值的不确定性容限内,则在非键盘位置测量次级电容电平。 当测量的次级电容电平超过键激活确认阈值时,将钥匙电路连接识别为与预期的硬键激活相关联。 可以基于尺寸和形状电容图案,定时信息以及主动应用或设备状态来获得附加的次要指示符。
    • 8. 发明申请
    • SYSTEM AND METHOD OF INTEGRATING A TOUCHSCREEN WITHIN AN LCD
    • 在LCD中集成触摸屏的系统和方法
    • US20080030479A1
    • 2008-02-07
    • US11871264
    • 2007-10-12
    • Robert LowlesJames RobinsonKen Wu
    • Robert LowlesJames RobinsonKen Wu
    • G09G5/00
    • G06F3/044G02F1/13306G02F1/13338
    • A touchscreen liquid crystal display, method for using a liquid crystal display as a user input, and a mobile electronic device are provided. The touchscreen liquid crystal display comprises: a liquid crystal display having a viewing surface and including a plurality of parallel first electrodes located on one side of a liquid crystal containing area and overlapping with a plurality of parallel second electrodes located on an opposite side of the liquid crystal containing area, the first and second electrodes overlapping to form an array of liquid crystal pixel elements, at least some of the first electrodes being displaceable towards the second electrodes in response to external pressure applied to the viewing surface; a driver circuit coupled to the first and second electrodes for driving the electrodes for selectively controlling a display state of the display pixel elements; and a measurement circuit coupled to the electrodes for measuring display pixel element voltages for at least some of the display pixel elements formed by the first electrode, and for each display pixel element for which a display pixel element voltage is measured, comparing the measured voltages to reference voltages and determining a relative force of the external pressure on the viewing surface based on the measured voltages.
    • 提供了触摸屏液晶显示器,使用液晶显示器作为用户输入的方法和移动电子设备。 触摸屏液晶显示器包括:液晶显示器,具有观察表面,并且包括多个平行的第一电极,位于液晶容纳区域的一侧并且与位于液体相对侧的多个平行的第二电极重叠 所述第一电极和所述第二电极重叠以形成液晶像素阵列,所述第一电极中的至少一些可响应于施加到所述观察表面的外部压力而朝向所述第二电极移位; 耦合到所述第一和第二电极的驱动电路,用于驱动所述电极以选择性地控制所述显示像素元件的显示状态; 以及耦合到所述电极的测量电路,用于测量由所述第一电极形成的至少一些所述显示像素元件的显示像素元件电压,并且对于测量显示像素元件电压的每个显示像素元件,将所测量的电压与 基于测量的电压确定观察表面上的外部压力的相对力。