| 摘要 |
PURPOSE: To make a user to affix a standard for the next period of battery replacement by storing the date of battery replacement in electronic equipment itself, and indicating it to the user as occasion demands. CONSTITUTION: This memory of battery replacement date is equipped with a battery 12, which supplies power, a timer 11, which has a calendar table where data are disposed, a memory 5, which stores the data read out of this calendar table, a controller 4, which performs information processing, and a voltage monitor 14, which measures the voltage of the said battery 12 by the instruction of this controller 4, and this stores the date of the voltage rise by the instruction of the controller when the voltage of the battery measured with the voltage monitor 14 has risen after replacement of the battery. The next battery replacement date is settled by indicating the date of the memory 5, which enables the user to affix the standard of the date of the next battery replacement. |
