Tennis pal
    1.
    发明授权
    Tennis pal 失效
    网球

    公开(公告)号:US06634548B1

    公开(公告)日:2003-10-21

    申请号:US09813725

    申请日:2001-03-21

    申请人: Robert D. Bowman

    发明人: Robert D. Bowman

    IPC分类号: G07G100

    摘要: A portable tennis scoring device having a flexible strap removably attached to a casing. The casing preferably contains a circuit chip and a battery; and the circuit chip is activated one or more of four activation switches, which cause information to be displayed (“activates”) in one or more of four separate displays. Additionally, two additional activation switches are used to either turn the unit on, turn the unit off, and/or reset one or more of the displays.

    摘要翻译: 一种便携式网球拍设备,其具有可移除地附接到壳体的柔性带。 壳体优选地包含电路芯片和电池; 并且电路芯片被激活四个激活开关中的一个或多个,其导致在四个单独的显示器中的一个或多个中显示(“激活”)信息。 另外,还有两个附加的激活开关用于打开设备,关闭设备和/或复位一个或多个显示器。