作者: Kevin Daniel Kaschke , Patrick J. Walsh
DOI:
关键词: Wireless 、 Wi-Fi array 、 Information system 、 Engineering 、 Fixed wireless 、 Computer network 、 Communication channel
摘要: The present application is directed to location information systems for wireless communication devices. In one implementation, a system sends device in predetermined area facility over short-range channel. informs the of facility. from other than