发明名称 Method and system for locating a hand-held terminal
摘要 A system and a method for determining the location of an RFID reader is provided. The system includes a plurality of transmitters which have a known reference point. Each transmitter includes a circuit for transmitting a sequence of unique RFID pseudo tag signals. Each unique RFID pseudo signal in the sequence has a unique range of transmission. Each unique RFID pseudo tag in the sequence has a tag identification indicating the range of transmission of the pseudo tag signal and a transmitter identification value indicating the transmitter from which the pseudo tag signal was transmitted. An RFID reader receives the unique RFID pseudo tag signals and distinguishes between each received unique RFID pseudo tag signal. A location calculator calculates the location of the RFID reader based on the information received.
申请公布号 US8723648(B2) 申请公布日期 2014.05.13
申请号 US20090650087 申请日期 2009.12.30
申请人 ATTEW VERNON JON;PSION INC. 发明人 ATTEW VERNON JON
分类号 H04Q5/22 主分类号 H04Q5/22
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