A phase assisted synchronization detector

摘要

A synchronization detector including a phase detector (250) and a distance metric calculator (252). The phase detector (250) uses the preamble readback signal to estimate the bit periods and outputs a signal indicative of this estimate. This signal is sued by the distance metric calculator (252) to limit its search for the synchronization mark to every mth bit position, where m is a predetermined integer greater than one (1). <IMAGE>