| 摘要 |
A portable communication terminal such as a portable telephone with a GPS function, the terminal having enhanced convenience for the user and informing the user's current position even after the power of the terminal is turned off. The portable communication terminal with a GPS function has a GPS reception section (105) for receiving signal data from a GPS satellite, a position measurement section (107) for obtaining the current position of the portable communication terminal based on the signal data, a positional information transmission section (108) for transmitting the positional information etc. obtained by the position measurement section (107), a control section (104) for requesting to the positional information transmission section (108) transmission of positional information, and a timer circuit (102) for turning on the power of the portable communication terminal at predetermined time intervals after the power of the terminal is turned off. While the power of the portable communication terminal is on, it automatically transmits information on its position etc. at predetermined time intervals, and even after the power of the portable communication terminal is turned off, it can automatically transmits information on its position etc. at predetermined time intervals.
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