Patent ID: 7043360

Claim:
A sensor unit for mounting on a mobile unit, the sensor unit comprising: an antenna section including at least an antenna element for receiving a high-frequency signal from an external positioning system; a sensor section including at least a gyro sensor for detecting an angular velocity of the mobile unit and an acceleration sensor for detecting an acceleration of the mobile unit; a combining circuit including at least a first signal line through which the high-frequency signal output from said antenna section is sent, a second signal line through which a signal output from said sensor section is sent, and a node for generating a composite signal by combining the high-frequency signal from said antenna section and the signal output from said sensor section such that the high-frequency signal and the signal occupy different frequency bandwidths and are output from said node simultaneously, said node being a connection point of said first signal line and said second signal line; and a casing accommodating said antenna section, said sensor section, and said combining circuit.