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    • 8. 发明申请
    • LOW POWER WAKEUP DETECTION CIRCUIT AND A PORTABLE ELECTRONIC DEVICE HAVING A LOW POWER WAKEUP DETECTION CIRCUIT
    • 低功率唤醒检测电路和具有低功率唤醒检测电路的便携式电子设备
    • US20110080367A1
    • 2011-04-07
    • US12572644
    • 2009-10-02
    • Rene Pierre MARCHANDChristopher Dave BERNARDMarc Edward HOLBEIN
    • Rene Pierre MARCHANDChristopher Dave BERNARDMarc Edward HOLBEIN
    • G06F3/045
    • G06F3/0414G06F1/3215G06F1/324Y02D10/126Y02D50/20
    • The present disclosure provides a low power wakeup detection circuit and a portable electronic device having a low power wakeup detection circuit. In accordance with one embodiment, there is provided a portable electronic device, comprising: a housing; a controller received within the housing; a touch-sensitive display having a touch-sensitive overlay, the touch-sensitive display being mechanically constrained by the housing; at least one force sensing transducer located below the touch-sensitive display on an opposite side to the touch-sensitive overlay, the at least one force sensing transducer being connected to the controller and measuring forces applied to the touch-sensitive display; wherein the controller is configured for: initiating a sleep mode from a full power mode in response to a trigger; when in the sleep mode, reading force data measured by the at least one force sensing transducer at a reduced duty cycle relative to the full power mode, comparing the force data to a wakeup force threshold, and returning to the full power mode from the sleep mode when the force data is greater than the wakeup force threshold.
    • 本公开提供了一种具有低功率唤醒检测电路的低功率唤醒检测电路和便携式电子设备。 根据一个实施例,提供一种便携式电子设备,包括:壳体; 在房屋内接收的控制器; 具有触敏覆盖层的触敏显示器,所述触敏显示器被所述壳体机械地约束; 位于所述触敏显示器下方的至少一个力感测传感器,所述至少一个力感测传感器位于所述触敏覆盖层的相对侧上,所述至少一个力感测换能器连接到所述控制器并且测量施加到所述触敏显示器的力; 其中所述控制器被配置为:响应于触发而从全功率模式启动睡眠模式; 当处于睡眠模式时,以相对于全功率模式的减小的占空比读取由至少一个力感测换能器测量的力力数据,将力数据与唤醒力阈值进行比较,并从睡眠返回到全功率模式 力数据大于唤醒力阈值时的模式。