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    • 8. 发明授权
    • Electromagnetic joystick using varying overlap of coils and conductive
elements
    • 电磁操纵杆使用线圈和导电元件的不同重叠
    • US5911627A
    • 1999-06-15
    • US956840
    • 1997-10-23
    • Julien PiotPatrick FavreMarc BidivilleFlorian KehlstadtAntoine Merminod
    • Julien PiotPatrick FavreMarc BidivilleFlorian KehlstadtAntoine Merminod
    • G05G9/047A63F9/22
    • G05G9/047G05G2009/0474G05G2009/04755
    • A joystick having an electromagnetic element coupled to a movable stick, with at least a pair of orthogonal coils on an underlying substrate. Alternately, the coils and electromagnetic elements can be reversed. The movement of the stick is detected by the amount of overlap of the electromagnetic element and the coils in each direction. The quality factor of the coil changes as more or less of the coil is overlapped, which can be measured by an electric circuit to determine the direction of movement and the amount of movement of the joystick. The electromagnetic element could be, for instance, a conductive steel plate, or a piece of another metal or of another conductive material, or ferrite particles. The coil could be wound (preferably on air only or, if needed to reach a higher value of inductance, on a magnetic core, provided this is small enough to not hide the effect of the mobile electromagnetic element). Or the coils could be made from traces on a printed circuit board (PCB), provided the use of a high enough (greater than 1 MHz) driving frequency, eliminating the need for a large, expensive wound coil.
    • 具有耦合到可移动棒的电磁元件的操纵杆,在下面的衬底上具有至少一对正交线圈。 或者,线圈和电磁元件可以相反。 棒的移动通过电磁元件和线圈在每个方向上的重叠量来检测。 线圈的质量因素随着线圈的多或少重叠而变化,这可以通过电路来测量以确定操纵杆的运动方向和移动量。 电磁元件可以是例如导电钢板,或另一种金属或其它导电材料的片,或铁氧体颗粒。 线圈可以被卷绕(优选仅在空气上,或者如果需要达到较高的电感值,则在磁芯上,只要这足够小以至不能隐藏移动电磁元件的影响)。 或者线圈可以由印刷电路板(PCB)上的迹线制成,只要使用足够高(大于1 MHz)的驱动频率,就不需要大型,昂贵的绕线线圈。
    • 9. 发明授权
    • Dual mode touchpad with a low power mode using a proximity detection mode
    • 使用接近检测模式的低功耗模式的双模式触摸板
    • US08743083B2
    • 2014-06-03
    • US13273167
    • 2011-10-13
    • Jean-Daniel ZanoneMathieu MeisserSimone ArrigoJulien Piot
    • Jean-Daniel ZanoneMathieu MeisserSimone ArrigoJulien Piot
    • G06F3/045
    • G06F3/044G06F1/3231G06F1/3262G06F3/0416G06F3/045G06F2203/04108Y02D10/173
    • A system includes a touchpad sensor array, a touch circuit, and a proximity circuit. The touch circuit executes a touch mode configured to track the position of a user or conductive object on the touchpad sensor array by detecting a change in an electrical property of the touchpad. The proximity circuit executes a proximity detection mode configured to track the position of a user or conductive object near or proximate to the touchpad sensor array by detecting a change in an electrical property of the touchpad. The system is configured to switch from the touch mode to the proximity detection mode after a predetermined period of inactivity, where the proximity detection mode can operate at one or more reduced polling rates, resulting in a reduced overall power dissipation. The system is configured to switch back to the touch mode when activity is detected by the proximity circuit.
    • 系统包括触摸板传感器阵列,触摸电路和接近电路。 触摸电路执行触摸模式,其被配置为通过检测触摸板的电气特性的变化来跟踪触摸板传感器阵列上的用户或导电物体的位置。 接近电路执行接近检测模式,其被配置为通过检测触摸板的电气特性的变化来跟踪触摸板传感器阵列附近或靠近触摸板传感器阵列的用户或导电物体的位置。 该系统被配置为在预定的不活动时间段之后从触摸模式切换到接近检测模式,其中接近检测模式可以以一个或多个降低的轮询速率操作,导致整体功率消耗的降低。 该系统配置为在接近电路检测到活动时切换回触摸模式。
    • 10. 发明申请
    • Dual Mode Touchpad with a Low Power Mode Using a Proximity Detection Mode
    • 使用接近检测模式的低功耗模式双模触摸板
    • US20120127124A1
    • 2012-05-24
    • US13273167
    • 2011-10-13
    • Jean-Daniel ZanoneMathieu MeisserSimone ArrigoJulien Piot
    • Jean-Daniel ZanoneMathieu MeisserSimone ArrigoJulien Piot
    • G06F3/045G06F3/044
    • G06F3/044G06F1/3231G06F1/3262G06F3/0416G06F3/045G06F2203/04108Y02D10/173
    • A system includes a touchpad sensor array, a touch circuit, and a proximity circuit. The touch circuit executes a touch mode configured to track the position of a user or conductive object on the touchpad sensor array by detecting a change in an electrical property of the touchpad. The proximity circuit executes a proximity detection mode configured to track the position of a user or conductive object near or proximate to the touchpad sensor array by detecting a change in an electrical property of the touchpad. The system is configured to switch from the touch mode to the proximity detection mode after a predetermined period of inactivity, where the proximity detection mode can operate at one or more reduced polling rates, resulting in a reduced overall power dissipation. The system is configured to switch back to the touch mode when activity is detected by the proximity circuit.
    • 系统包括触摸板传感器阵列,触摸电路和接近电路。 触摸电路执行触摸模式,其被配置为通过检测触摸板的电气特性的变化来跟踪触摸板传感器阵列上的用户或导电物体的位置。 接近电路执行接近检测模式,其被配置为通过检测触摸板的电气特性的改变来跟踪触摸板传感器阵列附近或靠近触摸板传感器阵列的用户或导电物体的位置。 该系统被配置为在预定的不活动时间段之后从触摸模式切换到接近检测模式,其中接近检测模式可以以一个或多个降低的轮询速率操作,导致整体功率消耗的降低。 该系统配置为在接近电路检测到活动时切换回触摸模式。