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72. 发明专利

JPS59196414A Electronic odometer 失效
标题翻译：电子光度计
公开(公告)号：JPS59196414A
公开(公告)日：1984-11-07
申请号：JP7164383
申请日：1983-04-22
申请人： Hitachi Ltd
发明人： YAMAMURA HIROHISA , NAITOU SHIYOUTAROU , KATOUGI KOUZOU
IPC分类号： G01C22/00 , G01C22/02 , H03K21/40
CPC分类号： H03K21/403 , G01C22/02
摘要： PURPOSE: To make the life of a nonvolatile memory long, by updating memory places at every specified running distance, writing the integrated running distance in the nonvolatile memory, and reading and displaying the value as required
CONSTITUTION: The number of pulse signals from a pulse generator 1 is counted by a counter 3. A program in an ROM5 is executed by an MPU4. A running distance and an integrated running distance are computed in correspondence with the counted number. The results are displayed on a digital display part 8. Addresses are sequentially updated at every 100-m running based on the instruction from the MPU4, and the integrated running distance is written in an integrated-running-data memory part in a nonvolatile memory 7. When a power source is turned ON again and automatic resetting is performed, the data is read and written into an RAM6. The data is used as the integrated running distance data.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了使非易失性存储器的使用寿命长，通过在每个指定的运行距离更新存储器位置，将集成的运行距离写入非易失性存储器，并根据需要读取和显示该值。构成：来自脉冲的脉冲信号数发生器1由计数器3计数。ROM5中的程序由MPU4执行。计算运行距离和集成运行距离与计数值对应。结果显示在数字显示部分8上。基于来自MPU4的指令，每100m运行一次地址被依次更新，并且集成运行距离被写入到非易失性存储器7中的集成运行数据存储器部分当电源再次接通并进行自动复位时，数据被读取并写入到RAM6中。数据用作集成运行距离数据。

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