COMMUNICATION SYSTEM, AND TIME SYNCHRONIZATION METHOD IN IT

摘要

PROBLEM TO BE SOLVED: To provide a communication system capable of time synchronizing among a plurality of communication devices with the exception of a delay by a communication.

SOLUTION: A host PC 1 transmits a time T_adjust to the communication devices 2 to 5 by a radio communication. A vibration source 30 propagates vibrations generated by a hand or an electronically controlled vibration device into a vibration medium 20. The communication devices 2 to 5 are set in a time synchronous mode when the time T_adjustis received from the host PC 1, and detect the vibrations of the vibration medium 20 by an acceleration sensor 14. The communication devices 2 to 5 set a time T_internal at a time when the time T_adjust is received in the time T_adjust when the vibrations of the vibration medium 20 are detected.

COPYRIGHT: (C)2007,JPO&INPIT