Patent ID: 7130326

Claim:
A correlator for use in a receiver providing gate signals for correlating first and second codes with a composite code that is time division multiplexed on a per chip basis at a chipping rate for spectrum spreading a transmitted signal having an inphase component and a quadrature component, the correlator comprising, first and second mixers for respective quadrature correlating the first code with the inphase component and with the quadrature component for respectively providing inphase and quadrature correlated first code signals, first and second integrators for respective accumulating integrations of the inphase and quadrature correlated first code signals during first integration periods repeated over a first dumping duration for respectively providing first and second accumulated integrations, the first integration periods are repeated at the chipping rate and controlled by the gate signals, third and fourth mixers for respective quadrature correlating the second code with the inphase component and with the quadrature component for respectively providing inphase and quadrature correlated second code signals, and third and fourth integrators for respective accumulating integrations of the inphase and quadrature correlated first code signals during second integration periods repeated over a second dumping duration for respectively providing third and fourth accumulated integrations, the second integration periods are repeated at the chipping rate defined by the gate signals, the first integration periods and the second integration periods are alternating equal periods.