| 摘要 |
<p>An entertainment apparatus (12) for reading a program stored in an optical disk (20) or the like as a detachably storage medium and executing a game based on the read program, charges a secondary cell (121) accommodated in a portable information terminal (14). When the portable information terminal (14) is connected to the entertainment apparatus (12), a charging circuit in the portable information terminal (14) introduces a DC power supply (+E1) from a charging power supply output terminal (74B) of the entertainment apparatus (12) via a charging input terminal (74A), increase the voltage of the DC power supply (+E1), and then charges the secondary cell (121) in the portable information terminal (14) with the DC power supply (+E1).</p> |
