| 摘要 |
PROBLEM TO BE SOLVED: To receive a wireless signal from a desired transmitter with a simple operation. SOLUTION: An antenna switching unit 26 selects according to a selection signal from a control unit 28 an antenna from among a plurality of antennas which are located in different positions so as to respectively receive wireless signals from predetermined one of a plurality of fixed transmitters which are located in different positions transmitting wires signals. A synchronizing unit 29 synchronizes the reception signal of the selected antenna in accordance with the control signal from the control unit 28 for demodulation. A storage unit 46 coordinates with each fixed transmitter to store a plurality of data for transmission. Each data for transmission comprises an antenna required to receive a wireless signal from a corresponding fixed transmitter, and frequency of the wireless signal from the corresponding transmitter. The control unit 28 controls the antenna switching unit 26 and the synchronizing unit 29 based on the data for transmission read from the storage unit 28.
|
