Patent ID: 8737553
Filing Date: 2014-05-27
Classification: H04H,H04L,H04W

Abstract:
1. A method of frame sync detection, comprising: calculating a first and second differential correlation of a data signal, at a plurality of delay and conjugate multipliers; convolving the first and second differential correlations with respective time reversed reference sets of first and second differential correlations at a sign correlator; calculating a correlation peak, at a sync detector, using the convolved differential correlations, to detect a frame sync; storing said calculated first and second differentials in buffers; masking out data from the buffered differentials correlations, at a MASK block, during a blind mode; summing the products of the convolved differentials correlations, at an adder stage; generating the absolute value of the convolved differentials correlations, at an absolute value block; and computing a magnitude of the convolved differentials correlations to determine the correlation peak, at a magnitude block.