Interlock for power sources in data processing apparatus
    1.
    发明授权
    Interlock for power sources in data processing apparatus 失效
    数据处理设备电源联锁

    公开(公告)号:US4214172A

    公开(公告)日:1980-07-22

    申请号:US12399

    申请日:1979-02-15

    申请人: Gary G. See

    发明人: Gary G. See

    摘要: A mechanical interlock for a hand held data processing device which prevents removal of an alternate electric power source when a separate power source is disengaged from the device and the electronic circuitry powered by it.The technical problem addressed by this invention is that of preventing adverse effect on electronic circuitry, such as loss of data stored in memory, due to removal of all electric power therefrom by assuring an uninterrupted source of electric power.

    摘要翻译: 一种用于手持式数据处理装置的机械联锁装置,当单独的电源与装置脱离接合时,防止替代电源的移除以及由其供电的电子电路。 本发明解决的技术问题是防止对电子电路的不利影响,例如存储在存储器中的数据丢失,这是由于通过确保不间断的电力来源而从其中去除所有的电力。

    Portable data entry apparatus including plural selectable functional
configurations
    3.
    发明授权
    Portable data entry apparatus including plural selectable functional configurations 失效
    便携式数据输入装置包括多个可选功能配置

    公开(公告)号:US4279021A

    公开(公告)日:1981-07-14

    申请号:US12400

    申请日:1979-02-15

    IPC分类号: G06F3/023 G06F15/06

    CPC分类号: G06F3/0238

    摘要: There is disclosed herein a data entry device designed for general use, and whose functional configuration may be readily changed to meet the specific needs of a number of different customers, each requiring a special assortment of operational features. The device (10) includes a housing (12) having a keyboard (14) including function control and data entry portions (18 and 20). In one embodiment, a plurality of different overlays (22) may be received over the function control portion of the keyboard. Each overlay carries an array of key labels (26), and is pliant enough to permit an underlying key to be actuated by depressing an appropriate key label. Tabs (30, 32, 34) projecting from the frame (24) carrying the overlay actuate switches (132, 134, 136) in the device to identify which overlay is carried by that frame. Other means of identifying the overlays to the data entry device are also shown. A different, permanent set of keys is provided for data entry in this embodiment. In another embodiment, an interchangeable mylar overlay (154) is also provided for the data entry portion of the keyboard. If the device includes a readout or display, the portion of the device (168) carrying legends for the display can also be changed with the overlay.

    摘要翻译: 这里公开了一种设计用于一般使用的数据输入装置,并且其功能配置可以容易地改变以满足多个不同客户的特定需求,每个需要各种各样的操作特征。 设备(10)包括具有包括功能控制和数据输入部分(18和20)的键盘(14)的壳体(12)。 在一个实施例中,多个不同的重叠(22)可以被接收在键盘的功能控制部分上。 每个覆盖物携带一组键标签(26),并且足够宽容以通过按下适当的键标签来启动底层键。 在装置中从承载覆盖层致动开关(132,134,136)的框架(24)突出的突片(30,32,34),以识别该框架承载哪个覆盖层。 还示出了识别数据输入设备的叠加层的其他方法。 在本实施例中提供用于数据输入的不同的永久的密钥组。 在另一个实施例中,还为键盘的数据输入部分提供了可互换聚酯薄膜叠层(154)。 如果设备包括读出或显示器,则还可以通过覆盖来改变携带用于显示器的图例的设备(168)的部分。