Patent attributes
Disclosed herein is a time synchronizing apparatus for a mobile WiMAX analyzer. The time synchronizing apparatus includes a Global Positioning System (GPS) receiver and a synchronization control unit. The GPS receiver outputs a GPS signal that is synchronized with the GPS time using information received from a GPS satellite. The synchronization control unit compares the GPS signal and a reference signal, which is generated using an internal clock, and controls synchronization according to the result of the comparison. The synchronization control unit includes an oscillator, a divider, an offset comparison unit and a processor. The oscillator outputs an oscillation signal having a predetermined frequency. The divider divides the oscillation signal into the reference signal. The offset comparison unit compares the differences between the GPS signal and the reference signal, and outputs the result value of the comparison. The processor controls the oscillation frequency of the oscillator until the result value satisfies a predetermined reference value.
