System, method and apparatus employing tones and/or tone patterns to indicate the message type in wireless sensor networks,申请号US20060607697-传众专利搜索

System, method and apparatus employing tones and/or tone patterns to indicate the message type in wireless sensor networks

申请公布号：US7720465(B2)

申请号：US20060607697

申请日期：2006.11.30

申请公布日期：2010.05.18

申请人：

ROBERT BOSCH GMBH

发明人：KESHAVARZIAN ABTIN;VENKATRAMAN LAKSHMI;LAL DHANANJAY

分类号：H04L12/28;H04L29/08

主分类号：H04L12/28

摘要：A system and method for operating a wireless network provides for sending a wakeup tone, periodically waking up from a sleep mode to listen for the wakeup tone, upon receiving the wakeup tone, listening for at least one second tone, the at least one second tone being one of (i) a tone in a frequency different from the wakeup tone and (ii) a pattern of tones including at least one frequency different from the wakeup tone, and upon receiving the at least one second tone, performing an action based on the at least one second tone.