Method of and apparatus for ensuring correct operation of a
microcomputer in the event of power outage
    2.
    发明授权
    Method of and apparatus for ensuring correct operation of a microcomputer in the event of power outage 失效
    在断电的情况下确保微机的正确操作的方法和装置

    公开(公告)号:US4402057A

    公开(公告)日:1983-08-30

    申请号:US1168

    申请日:1979-01-05

    摘要: A reference check bit pattern is stored in a nonvolatile storage medium of a vehicle-mounted microcomputer. A portion of a volatile storage medium is allocated for the purpose of storing the reference check bits. The microcomputer is programmed to compare the check bits stored in both the volatile and nonvolatile storage mediums. In response to a command signal, a mismatch is detected between the reference check bits of the volatile and nonvolatile mediums to indicate that data stored in the volatile memory have failed due to a power outage. The failed check data of the volatile memory is rewritten with the reference check data in the nonvolatile memory for later comparison. At the same time all data stored in the remaining portion of the volatile memory is erased so the remaining portion can accept a set of fresh input data. When a match occurs the computer proceeds with the normal computing functions.

    摘要翻译: 参考校验位模式存储在车载微型计算机的非易失性存储介质中。 分配易失性存储介质的一部分用于存储参考校验位。 微型计算机被编程为比较存储在易失性和非易失性存储介质中的校验位。 响应于命令信号,在易失性和非易失性介质的参考校验位之间检测到失配,以指示存储在易失性存储器中的数据由于断电而失败。 易失性存储器的故障检查数据用非易失性存储器中的参考校验数据重新写入以供稍后比较。 同时,存储在易失性存储器的剩余部分中的所有数据被擦除,使得剩余部分可以接受一组新的输入数据。 当匹配发生时,计算机进行正常的计算功能。

    Temperature responsive reed switch
    3.
    发明授权
    Temperature responsive reed switch 失效
    温度响应簧片开关

    公开(公告)号:US4023128A

    公开(公告)日:1977-05-10

    申请号:US659937

    申请日:1976-02-20

    IPC分类号: H01H37/58 H01H37/32

    CPC分类号: H01H37/585

    摘要: A temperature responsive reed switch having magnetic reed pieces, a permanent magnet disposed near a contact of the reed switch and being magnetized in an axial direction of the reed switch, two temperature responsive magnetic materials disposed adjacent the ends of the permanent magnet in the axial direction of the reed switch and a magnetic yoke disposed adjacent the outer surfaces of the temperature responsive magnetic material.

    摘要翻译: 具有磁簧片的温度响应簧片开关,设置在舌簧开关的接触附近并沿簧片开关的轴向被磁化的永久磁铁,两个温度响应磁性材料,沿着轴向设置在永磁体的端部附近 的簧片开关和邻近温度响应磁性材料的外表面设置的磁轭。