Patent ID: 7994970

Claim:
A positioning system comprising: a position information transmitter including a transmitting part that transmits a position information signal as a signal compatible with a satellite positioning signal that is a radio signal for positioning transmitted from an artificial satellite, the position information signal being a radio signal containing position information that is information indicative of a position; and a communication terminal including: a positioning processing part that when receiving the satellite positioning signal, finds a current position of the communication terminal by finding a position of the artificial satellite from the satellite positioning signal, the positioning processing part upon receipt of the position information signal finding a current position of the communication terminal based on the position information contained in the position information signal, and a plurality of correlators each capable of independently receiving the radio signals, the transmitting part transmitting to the communication terminal the position information signal containing operation mode determination information that is information for use in determining which of the satellite positioning signal or the position information signal each of the correlators is to receive, at least one correlator of a plurality of the correlators being set to receive the satellite positioning signal, the communication terminal selecting which of the satellite positioning signal and the position information signal that another or other correlators, other than the at least one correlator, are to receive based on the operation mode determination information contained in the received position information signal.