| 摘要 |
A positioning apparatus, an electronic device, and a recording medium storing software program are provided to improve a positioning sensitivity by decreasing a passband of a variable filter, when a signal reception condition is poor. A mobile telephone(1) includes a GPS(Global Positioning System) antenna(10), a GPS receiver, a host CPU(Central Processing Unit)(110), a manipulation unit(120), a display unit(130), a portable wireless communication unit(140), a ROM(Read Only Memory)(150), and a RAM(Random Access Memory)(160). The GPS antenna receives RF(Radio Frequency) signals including GPS satellite signals from a GPS satellite. The GPS antenna outputs the received RF signal to the GPS receiver. The positioning apparatus includes plural filters, memories, and a processor. The filters have different pass bands and extract a specific frequency signal from a GPS satellite signal. The memories correspond to the respective filters and store the output signals from the filters. The processor selects one of the memories and performs a positioning process based on the signal stored in the selected memory.
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