发明名称 BUS INFORMATION ANNOUNCEMENT SYSTEM USING AN RF COMMUNICATION TECHNIQUE, PARTICULARLY FOR ANNOUNCING THE ARRIVAL TIME OF A BUS AT A BUS STATION
摘要 PURPOSE: A bus information announcement system using an RF communication technique is provided to enhance the user convenience in the use of a bus at a bus station by accurately notifying clients the bus arrival time. CONSTITUTION: An RF(Radio Frequency) chip(100) is installed at a bus, and stores bus route information. Plural RF antennas(110) are installed at every bus station. When the plural RF antennas are placed near the RF chip, the antennas receive the bus route number information from the RF chip.
申请公布号 KR20100107894(A) 申请公布日期 2010.10.06
申请号 KR20090026236 申请日期 2009.03.27
申请人 KIM, ZOO YOUNG;KIM, MIN YOU 发明人 KIM, ZOO YOUNG;KIM, MIN YOU
分类号 H04W4/04;G06Q50/30;G08G1/123 主分类号 H04W4/04
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