Patent ID: 9219600
Filing Date: 2015-12-22
Classification: H04L

Abstract:
1. In a communication system, a method of detecting timing of a synchronization sequence included in a data stream transmitted in a noisy channel, the synchronization sequence being a known data sequence purposely injected into the data stream for clock synchronization, the method comprising: a) obtaining a data stream waveform, from a communication channel, the data stream waveform comprising an instance of a synchronization sequence waveform; b) obtaining a plurality of samples of the synchronization sequence waveform; c) obtaining one or more samples of a model synchronization sequence waveform, wherein the model synchronization sequence waveform models an expected waveform for the synchronization sequence being transmitted on the communication channel by applying the synchronization sequence to a model of the communication channel; and d) correlating the instance of the synchronization sequence waveform with the model synchronization sequence waveform by correlating one or more samples of the synchronization sequence waveform with the one or more samples of the model synchronization sequence waveform.