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    • 5. 发明授权
    • Dual-mode fuel gauge for display in battery-powered equipment
    • 双模式燃油表可显示在电池供电设备中
    • US06191557B1
    • 2001-02-20
    • US09435164
    • 1999-11-05
    • James M. GrayDavid L. Schieble
    • James M. GrayDavid L. Schieble
    • H02J700
    • G01R31/3682H01M2/1022H01M10/4257H01M10/488H02J7/0047
    • A method and an apparatus for informing a system user of the remaining battery terminal voltage as the battery approaches the fully discharged condition. One horizontal fuel gauge icon for each battery is displayed on the host system display panel. The fuel gauge is displayed as two overlapping rectangles which are left justified. The first layer is a solid outline, always the same width, representing the full charge capacity of the battery. The second layer is a filled-in rectangle representing the present (actual) charge capacity as a percentage of the full charge capacity in a charge depletion mode and representing the battery terminal voltage in a voltage mode. The fuel gauging switches from the charge depletion mode to the voltage mode is response to detection of a battery terminal voltage threshold greater than a shutdown voltage threshold.
    • 一种用于在电池接近完全放电状态时向系统用户通知剩余电池端电压的方法和装置。 主机系统显示面板上显示每个电池的一个水平电量计图标。 燃油表显示为两个重叠的矩形,左对齐。 第一层是固体轮廓,总是相同的宽度,代表电池的完全充电容量。 第二层是表示当前(实际)充电容量的填充矩形,其占电荷耗尽模式下的完全充电容量的百分比,并且表示电压模式下的电池端子电压。 燃料测量从电荷耗尽模式切换到电压模式响应于检测到大于关断电压阈值的电池端子电压阈值。
    • 6. 发明授权
    • 3-Wire multiplexer
    • 3线多路复用器
    • US4569045A
    • 1986-02-04
    • US501661
    • 1983-06-06
    • David L. SchiebleWalter L. RutchikMerle R. Swinehart
    • David L. SchiebleWalter L. RutchikMerle R. Swinehart
    • H04B3/54H04J7/02H04L5/20H04J3/02
    • H04J7/02H04B3/542H04L5/20H04B2203/5408H04B2203/5425H04B2203/5458H04B2203/5483H04B2203/5495
    • The invention provides a 3-wire multiplexing system exhibiting high noise immunity, particularly suitable for industrial control applications. A master station provides AC power, and clocking and synchronization information, for a plurality of remote transmitter and receiver stations. A 3-wire cable links the master station and the remote stations. Two wires of the cable are power lines L1 and L2 and are isolated from each station by respective transformers. The third wire is a data line and is optically coupled to the remote stations. The remote stations are thus completely isolated from the cable, yet powered, clocked and synchronized therefrom without the need for local power supplies or local clocks. The signaling method switches the data line onto the power lines, and provides a high degree of data security by recognizing both the polarity and the position of a pulse on the data line within an AC cycle. The system further provides diagnostics in remote receivers including half cycle polarity and position decoding, error detection, fail state selection to fail OFF or fail ON or remain in the last valid state, and two scans alike detection.
    • 本发明提供了具有高抗噪声性的3线复用系统,特别适用于工业控制应用。 主站为多个远程发射机和接收机站提供AC电力和时钟和同步信息。 3线电缆连接主站和远程站。 电缆的两条电线是电力线L1和L2,并且通过相应的变压器与每个电站隔离。 第三条线是数据线,并且光耦合到远程站。 因此,远程站与电缆完全隔离,但由电源供电,定时和同步,无需本地电源或本地时钟。 信令方法将数据线切换到电力线上,并且通过在AC周期内识别数据线上的脉冲的极性和位置来提供高度的数据安全性。 该系统进一步提供了远程接收器的诊断功能,包括半周期极性和位置解码,错误检测,故障状态选择失效关闭或故障开启或保持在最后的有效状态,并且两次扫描相似。