Patent ID: 8094070

Claim:
A fast position tracking method using a GPS (Global Positioning System), the fast position tracking method comprising: receiving a satellite signal from a plurality of satellites; demodulating satellite data received from a predetermined satellite from among the plurality of satellites by using a pseudo random noise code and a carrier, which correspond to the satellite signal; estimating information about satellite data which is at a current time and which is from among the demodulated satellite data according to an RTC (real-time clock) counter; and determining a position at the current time according to the information about the satellite data at the current time, wherein the estimating of the information comprises: performing a frame lock by using the demodulated satellite data before a next preamble signal for frame synchronization of the satellite data is received; and with respect to a frame which is of the satellite data and which is generated from the frame lock, estimating information about the frame at the current time.