Patent ID: 8724744

Claim:
A method for wide dynamic range phase conversion in a digital communication device, the method comprising: converting an inphase signal component and a quadrature signal component of a complex input signal to a single quadrant to produce a first signal representation having a reduced dynamic range; performing a scaling operation on said first signal representation by an amount derived from a common number of leading zeroes in said inphase signal component and said quadrature signal component of said complex input signal in said first signal representation to produce a second signal representation; determining a complex signal magnitude from said first signal representation and obtaining squelch information based on a squelch threshold; converting said second signal representation into a phase domain representation using a single quadrant phase lookup table to derive phase information, the lookup table using a most significant bit of the inphase signal component and a most significant bit of the quadrature signal component, wherein complex signal magnitude is determined by summing a maximum of the absolute values of the inphase signal component and the quadrature signal component with a fraction of a minimum of the absolute values of the inphase signal component and the quadrature signal component; comparing said complex signal magnitude to the squelch threshold to generate the squelch information which comprises one bit of information; and retaining amplitude data in the one bit of information for a signal symbol stream correlation operation.