| 摘要 |
<p>A mobile telephone includes a first memory (1), a second memory (2), a first CPU (3), a second CPU (4), an interface (5), an antenna (6), a battery (7), and a switch (8). When a building is destroyed and an owner of the mobile telephone is left under wreckage, a rescue staff uses a transmitter to transmit an urgent signal to the destruction site. This urgent signal includes key information. This signal is received by the mobile telephone and transmitted via the antenna (6) and the interface (5) to the first CPU (3). The first CPU (3) compares the key information contained in the received signal to the key information stored in the first CPU (3). After matching of the both key information is confirmed, a rescue signal is transmitted via the antenna (6) and the interface (5). This rescue signal is received by the rescue staff and the position of the mobile telephone is identified.</p> |
