Patent ID: 8837611
Filing Date: 2014-09-16
Classification: H04L

Abstract:
1. A method comprising: storing a first preamble symbol and at least one second preamble symbol of a first frame of an incoming broadcast signal in a memory coupled to a demodulator, wherein an output of the demodulator is coupled to an input of a decoder circuit; detecting a guard interval based on a temporal correlation on live stream data; decoding the first preamble symbol of the first frame using the live stream data of the first frame during synchronization of the demodulator; accessing the stored at least one second preamble symbol of the first frame from the memory via a synchronization logic of the demodulator and replaying the stored at least one second preamble symbol at least a first time to decode the at least one second preamble symbol to determine transmission parameters of the incoming broadcast signal; determining a guard interval from the at least one second preamble symbol, receiving data symbols of the first frame using the live stream data and synchronizing the demodulator based on the received live stream data symbols of the first frame and the determined guard interval from the at least one second preamble symbol.