| 摘要 |
PURPOSE:To prolong a consecutive using time, by providing a secondary battery and a solar battery as a power source to operate a receiver, and performing the floating charge of a secondary current by a power supplied from the solar battery. CONSTITUTION:Display information received by a reception antenna 2 is displayed on a display unit 4. The secondary battery 6 which constitutes the power source part 5 of a reception part 3 is constituted so as to receive the floating charge by the solar battery 7. The normal operation of the reception part 3 is performed by the power supplied from the secondary battery 6, however, when large power consumption is required in such case as the display of information, etc., the power is also supplied from the solar battery 7. By adopting such constitution, it is possible to extend the consecutive using time compared with the case where the power is supplied from a single power source. |
