In one embodiment, a computer-readable non-transitory storage medium embodies logic that is configured when executed to determine a first correlation between first consecutive edges of a synchronization signal and a pre-determined coefficient vector. The logic is further configured when executed to determine a second correlation between second consecutive edges of the synchronization signal and the pre-determined coefficient vector and synchronize one or more timings for communication between a stylus and a device based at least in part on the first and second correlations.