Mobile station
    1.
    发明授权
    Mobile station 有权
    双功能移动台与横向旋转键盘

    公开(公告)号:US06798882B2

    公开(公告)日:2004-09-28

    申请号:US09770334

    申请日:2001-01-26

    Inventor: Juhani Kupiainen

    Abstract: A dual function mobile station is constructed with first input and first display, which are used in the first functional mode, and second input and second display that are used in the second functional mode. The orientation of the mobile station in the second mode of operation is transverse to the orientation of the mobile station in the first mode of operation.

    Abstract translation: 双功能移动台由在第一功能模式中使用的第一输入和第一显示以及在第二功能模式中使用的第二输入和第二显示构成。 移动台在第二操作模式中的方向横向于移动台在第一操作模式中的方位。

    Controlled source of current
    2.
    发明授权
    Controlled source of current 失效
    受控电流源

    公开(公告)号:US4668904A

    公开(公告)日:1987-05-26

    申请号:US601952

    申请日:1984-04-19

    Inventor: Juhani Kupiainen

    CPC classification number: H03K3/57 G01R33/3852 H03K17/6871

    Abstract: The invention relates to a controlled source of current (1) having an inductive load (3), particularly a gradient coil adaptable to a nuclear spin imaging assembly. In order to cut down the reversal time of a current flowing in the load, the circuit is provided, according to the invention, with controlled energy storage instruments (2) connected in series with source of current (1) and inductive load (3) for increasing the rate of conversion of energy stored in said inductive load (3). Said instruments (2) preferably comprise capacitor means (C1, C2) and switch means (F1 . . . F4) for controlling the capacitors, facilitating a quick transfer of energy into or out of load (3). Said switch means (F1 . . . F4) are controlled by means of instruments (6) sensing a current flowing in inductive load (3), the conversion of energy being thus accurately controlled.

    Abstract translation: 本发明涉及具有感性负载(3)的电流(1)的受控源,特别是适用于核旋转成像组件的梯度线圈。 为了减少在负载中流动的电流的反转时间,根据本发明,提供了与电流源(1)和电感负载(3)串联连接的受控储能装置(2) 用于增加存储在所述感性负载(3)中的能量的转换速率。 所述仪器(2)优选地包括用于控制电容器的电容器装置(C1,C2)和开关装置(F1 ... F4),从而有助于将能量快速传输到负载(3)中。 所述开关装置(F1 ... F4)通过感应在感性负载(3)中流动的电流的仪器(6)进行控制,从而精确控制能量的转换。

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