Patent ID: 8767778
Filing Date: 2014-07-01
Classification: H04J,H04N

Abstract:
1. A signal synchronization system comprising: a plurality of slave reference signal generators; a master reference time generator; and a packet network connecting said master reference time generator to at least one of said plurality of slave reference signal generators; said master reference time generator comprising a master reference time counter and a master sampling device configured to sample an output of said master reference time counter; said master reference time generator configured to encode time data in master reference time packets and output the packets to said packet network, wherein the master reference time packets comprise a future network time count; said at least one slave reference signal generator configured to accept the encoded time data and the future network time count as inputs to generate a signal having a phase calculated based upon an elapsed time measured from an initial time point; said at least one slave reference signal generator comprising a slave reference time counter configured to generate time data elapsed from the initial time point and a slave sampling device configured to sample the time data; said master reference time counter and said slave reference time counter being sampled at time points derived from a time base synchronized on said master reference time generator and said at least one slave reference signal generator.