| 摘要 |
PROBLEM TO BE SOLVED: To warn a battery-powered apparatus user of a low residual amount of battery capacity without need for the user's paying attention thereto. SOLUTION: If the residual amount of a battery is low, the apparatus warning by a beep gives a different warning beep from an ordinary warning beep when a warning beep is made during ordinary operation of the apparatus. An apparatus with a monitor warns the user of a low remaining battery level by changing the indication color of the monitor to an indication color different from a color in regular use. |
