Patent ID: 7230999

Claim:
A method of facilitating data detection for a global positioning system (GPS) receiver, the method comprising: electronically receiving a first in-phase (I) reference signal during a first time interval; electronically receiving a first quadrature (Q) reference signal during the first time interval; electronically receiving a second in-phase (I) reference signal during a second time interval; electronically receiving a second quadrature (Q) reference signal during the second time interval; electronically computing a first sum of the first I reference signal and the second I reference signal; electronically computing a second sum of the first Q reference signal and the second Q reference signal; electronically computing a first difference of the first I reference signal and the second I reference signal; electronically computing a second difference of the first Q reference signal and the second Q reference signal; and determining at least one data bit transition using a first power based upon at least the first sum and the second sum and a second power based upon the first difference and the second difference.