Patent ID: 8712364
Filing Date: 2014-04-29
Classification: G07C,H04B,H04H,H04W,Y02D

Abstract:
1. An in-vehicle communication system configured to receive signals from a transmitter configured to transmit periodically a time-reference signal and receiver specific information, wherein an information transmission time of receiver specific information is timed relative to a reference transmission time of the time-reference signal, said system comprising: a receiver characterized as having a receiver identification value, said receiver configured to operate from an off-state to an on-state during an information-expected time interval to receive receiver specific information, wherein the information-expected time interval is determined based on a reception time of the time-reference signal and the receiver identification value, wherein the receiver is configured to operate during a synchronization time interval to receive the time-reference signal, and operate during the information-expected time interval to receive receiver-specific information, wherein the receiver is configured to operate repeatedly only during the information-expected time interval after an initial synchronization time interval, and before a subsequent synchronization time interval, wherein the initial synchronization time interval is longer than the subsequent synchronization time interval.