Cursor movement control key and electronic computer keyboard for
computers having a video display
    1.
    发明授权
    Cursor movement control key and electronic computer keyboard for computers having a video display 失效
    具有视频显示的计算机的光标移动控制键和电子计算机键盘

    公开(公告)号:US5278557A

    公开(公告)日:1994-01-11

    申请号:US658793

    申请日:1991-02-19

    摘要: A cursor movement control key and electronic keyboard for a computer having a video display incorporates a force-sensitive resistor having a junction resistance which varies inversely with pressure applied thereto. The external key cap engages an actuator which bears against the force-sensitive resistor. The actuator has a plurality of four pads which bear against respective electrode regions of the force-sensitive resistor. The pads are positioned at the 0.degree., 90.degree., 180.degree., and 270.degree. positions. The actuator mounts relative to a keyboard mounting plate. At least one of the actuator and mounting plate include opposed lateral projections which engage relative to the other of the actuator and mounting plate to both, a) retain the actuator to the mounting plate, and yet b) allow clearance for tilting movement of the actuator relative to the mounting plate. The force-sensitive resistor is comprised of a material which is predictably and consistently responsive to operator proportional force inputs between about 50 grams and 175 grams. The opposing electrode regions are connected with parallel resistances which cause the resulting resistance response to be more linear for operator force inputs below some preset value selected somewhere between about 50 and 175 grams.

    摘要翻译: 用于具有视频显示器的计算机的光标移动控制键和电子键盘包括具有与施加到其上的压力成反比变化的结电阻的力敏电阻器。 外部键帽接合抵靠力敏电阻的致动器。 致动器具有多个四个垫,该四个垫承受力敏电阻的相应电极区。 垫位于0度,90度,180度和270度位置。 执行器相对于键盘安装板安装。 致动器和安装板中的至少一个包括相对的侧向突起,其相对于致动器和安装板中的另一个接合到两个侧面,a)将致动器保持在安装板上,并且b)允许间隙以使致动器 相对于安装板。 力敏电阻器由一种材料构成,该材料可预测地且一致地响应于约50克和175克之间的操作者比例力输入。 相对的电极区域与平行电阻相连接,使得所产生的电阻响应对于操作者的力输入而言更为线性,低于在约50和175克之间选择的预设值。

    Computer keyboard with improved cantilever switch design
    2.
    发明授权
    Computer keyboard with improved cantilever switch design 失效
    电脑键盘具有改进的悬臂开关设计

    公开(公告)号:US5329079A

    公开(公告)日:1994-07-12

    申请号:US17466

    申请日:1993-02-12

    摘要: A computer keyboard has multiple rows of cantilevered keys which are flexibly attached to common mounting strips. The rows of cantilevered keys are arranged to partially overlap adjacent rows such that the keys in one row actuate switch contacts aligned beneath mounting strips in the adjacent row. Each cantilevered key has an elongated member extending between a common mounting strip and a key cap, whereby the elongated members are wider at the point of attachment to the common mounting strips than at a point adjacent to the key cap.

    摘要翻译: 计算机键盘具有多排悬臂键,它们可灵活地连接到普通的安装条上。 悬臂键的排布置成部分地重叠相邻的行,使得一行中的键致动在相邻行中的安装带下方对齐的开关触点。 每个悬臂键具有在公共安装带和钥匙盖之间延伸的细长构件,由此细长构件在与公共安装带的连接点处比在与键帽相邻的点处更宽。