Patent ID: 8290424
Filing Date: 2012-10-16
Classification: H01Q

Abstract:
1. A satellite signal control box, coupled with at least one antenna unit mounted on a vehicle through a driving system to drive the antenna unit to point at at least one of a plurality of satellites in the space, comprising: an operational interface unit generating a scan driving signal representative of a scan pattern and scan coordinates, a processor unit coupled to said operational interface unit to receive said scan driving signal therefrom and generating an activating signal responsive thereto, a driving control circuit coupled to said processor unit to receive said activating signal therefrom, said driving control unit being coupled to a driving unit, said driving control unit activating said driving unit to trigger an antenna unit to perform scan in the space in accordance with said scan pattern and scan coordinates, said antenna unit, simultaneously with said space scanning, capturing satellite signals from at least one of a plurality of satellites in the scanned space upon meeting said scan coordinates, said satellite signals including scan data, wherein said scan data includes peak values of the satellite signals strength. said processing unit being further coupled to said driving control circuit for analyzing the scan data to obtain satellite coordinates of said at least one satellite based on said peak values of said satellite signals strength in correspondence to said scan coordinates; and a memory unit coupled to said processing unit for storing the satellite coordinates of said at least one satellite; wherein said operational interface unit elects a target satellite to be locked on among said plurality thereof, and sends a lock-on signal to said processing unit, wherein, upon receiving said lock-on signal from said operational interface unit, the processing unit captures the satellite coordinates of said target satellite to be locked according to the lock-on signal; wherein, upon capturing said satellite coordinate of said target satellite from said memory unit, the processing unit sends an antenna control signal to the driving control circuit according to said satellite coordinates being captured, and the driving control circuit triggers the driving unit to point the antenna unit at the target satellite.