发明名称 Wireless communication apparatus
摘要 The disclosed invention provides a wireless communications terminal apparatus that calculates its accurate position, eliminating the influence of a repeater on the calculation without using complicated processing. The terminal apparatus receives signals transmitted from a plurality of radio stations and calculates its position, using the received signals. The terminal apparatus comprises repeater detection means for detecting a signal from a repeater which transmits signals that are generated on the basis of signals transmitted from one of the radio stations and indistinguishable from the signals transmitted from that radio station from among the received signals and position calculation means for calculating its position. When the repeater detection means has detected a signal from a repeater, the position calculation means ignores the detected signal from the repeater and calculates the terminal position, using the received signals from other radio stations.
申请公布号 US7013111(B2) 申请公布日期 2006.03.14
申请号 US20020206047 申请日期 2002.07.29
申请人 HITACHI, LTD. 发明人 KUWAHARA MIKIO;MIZUGAKI KENICHI;OGINO ATSUSHI;FUJISHIMA KENZABURO
分类号 H04B7/15;G01S5/02;H04W64/00 主分类号 H04B7/15
代理机构 代理人
主权项
地址