发明授权
- 专利标题: Real-time locating system and method using timing signal
- 专利标题(中): 实时定位系统和方法使用定时信号
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申请号: US10138795申请日: 2002-05-03
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公开(公告)号: US07212563B2公开(公告)日: 2007-05-01
- 发明人: Robert W. Boyd , Donald K. Belcher , Michael A. Wohl , David S. Wisherd
- 申请人: Robert W. Boyd , Donald K. Belcher , Michael A. Wohl , David S. Wisherd
- 申请人地址: US CA Santa Clara
- 专利权人: Wherenet Corp
- 当前专利权人: Wherenet Corp
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 主分类号: H04B1/00
- IPC分类号: H04B1/00
摘要:
A location system includes a plurality of signal readers for receiving signals from a wireless transmitter to be located. The signals include a wideband, spread spectrum signal and a timing marker appended a predetermined time in front of the wideband, spread spectrum signal for indicating the presence of the wideband, spread spectrum signal. A location processor is operatively coupled to the signal readers for detecting the timing markers of signals and responsive to a detection of a timing marker, correlating a signal as a first-to-arrive signal and conducting differentiation of first-to-arrive signals to locate a wireless transmitter.
公开/授权文献
- US20020181565A1 Real-time locating system and method using timing signal 公开/授权日:2002-12-05