Patent ID: 8849937
Filing Date: 2014-09-30
Classification: H04J

Abstract:
1. A time synchronization apparatus for performing time synchronization by automatically adjusting a number of synchronization messages that are sent from a master, the apparatus comprising: a synchronization unit configured to perform time synchronization between the master and at least one slave based on the number of synchronization messages that are sent from the master; a state-of-synchronization determiner configured to measure performance of the synchronization to thereby determine the state of the synchronization; and a number-of-messages adjustor configured to adjust the number of synchronization messages based on the state of the synchronization, wherein the state-of-synchronization determiner determines the state of the synchronization to be synchronization stability if the performance of the synchronization is measured to be within a predetermined threshold value, and if the measured performance of the synchronization is not within the predetermined threshold value, the state-of-synchronization determiner determines the state of the synchronization to be synchronization instability.