Apparatus for electrically switching between peripheral devices
    2.
    发明授权
    Apparatus for electrically switching between peripheral devices 失效
    用于在外围设备之间电切换的设备

    公开(公告)号:US5258655A

    公开(公告)日:1993-11-02

    申请号:US780606

    申请日:1991-10-23

    摘要: The apparatus allows the connection of two peripherals to a host device through one port and switching between them. The apparatus includes a sensor for sensing a data signal from the second peripheral device and a switch responsive to the sensor. The switch in a default, first state connects the first peripheral device to the host device and in a second state disconnects the first peripheral device therefrom. If a second peripheral device is connected to the apparatus, the sensor senses a data signal from the device and communicates this sensing to the switch. The switch responds by disconnecting the first device from the host device, leaving the second device solely connected to the host device. If the second peripheral device is disconnected from the apparatus, the switch reconnects the first peripheral device to the host device.

    Indicator of battery current for portable devices
    4.
    发明授权
    Indicator of battery current for portable devices 失效
    便携式设备的电池电流指示灯

    公开(公告)号:US5809449A

    公开(公告)日:1998-09-15

    申请号:US739533

    申请日:1996-10-30

    申请人: Steven L. Harper

    发明人: Steven L. Harper

    摘要: Battery current is indicated on a display element of a portable computing apparatus. Real time changes in battery current show the effects on the battery for given operations and configurations of the computing apparatus. The battery current is displayed as an icon. In various embodiments the icon indicates an absolute battery current value (e.g., in ampere or micro-ampere units), or a relative battery current value (e.g., a percentage relative to a predetermined reference current level). The icon appears on a display screen of the computing system or is a built-in dedicated indicator mounted into the apparatus case. A battery charge icon accompanies the battery current icon.

    摘要翻译: 电池电流在便携式计算装置的显示元件上指示。 电池电流的实时变化显示计算装置的给定操作和配置对电池的影响。 电池电流显示为图标。 在各种实施例中,图标表示绝对电池电流值(例如,安培或微安单元)或相对电池电流值(例如,相对于预定参考电流电平的百分比)。 该图标出现在计算系统的显示屏幕上,或者是安装在装置壳体中的内置专用指示器。 电池电量图标附带电池电量图标。