| 摘要 |
The invention relates to a portable electronic communication device, such as a mobile telephone, in which operation is possible at least for a short period of time even when the rechargeable battery of the device is empty. According to the invention, the above objective is obtained by - in addition to the main rechargeable battery (14) of the device - providing at least one rechargeable back-up battery (16) that is charged by integrated one or more electromechanical generators (22). According to a preferred embodiment, the electromechanical generator, which supplied electrical power during movement of the device, comprises an unbalance rotation generator or a linear generator. By these means, the device can perform its main functions at least for a relatively short period of time, the necessary electronic circuits (12) of the device during this short period of time receiving the necessary electrical power from the one or more back-up batteries (16). In this short period of time, the main rechargeable battery (14) is disconnected from the electronics (12) of the device. |
