| 摘要 |
A communication apparatus (1) having a main battery (12a) for performing main operations of the communication apparatus (1) so as to connect or remove from the communication apparatus (1) freely. The communication apparatus (1) includes a clock unit (19) and a control unit (11). The clock unit (19) configured to count a current time by using power supplied by the main battery (12a), and configured to acquire the current time from a base station based on the main battery (12a) was connected after the main battery (12a) was removed the communication apparatus (1). And the control unit (11) configured to control so as to set the current time acquired by the clock unit (19) as the current time counted. |
