发明名称 ASSET RECOVERY SYSTEM
摘要 An asset location, tracking, and recovery system and method includes a network of VHF towers and a control center receiving signals from and transmitting sig-nals to the VHF towers. Primary locating units each include a transmitter, a receiver, and a transponder activated when a signal is transmitted by the control center via the VHF tow-ers to the receiver. Auxiliary locating units include at least a transmitter emitting a signal received by at least one pri-mary locating unit receiver which relays that signal to the control center via the VHF towers from the primary locat-ing unit transmitter.
申请公布号 CA2715377(C) 申请公布日期 2013.10.15
申请号 CA20092715377 申请日期 2009.02.12
申请人 LOJACK OPERATING COMPANY, LP 发明人 ARPIN, CLAUDE;DUVALL, WILLIAM R.;LIPOWSKI, JOSEPH T.;RAMADORAI, ARVIND K.;WOOTERS, THOMAS A.
分类号 G01S13/75;H04W64/00 主分类号 G01S13/75
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