发明名称 |
Containerized cargo/high value asset tracking method, device and system |
摘要 |
A cargo, containerized cargo, high value asset monitoring and tracking communication system including a local area network (LAN) transmitter that transmits a first message having a first frequency spectrum, and a wide area network (WAN) uplink device that receives the first message from the local area network radio transmitter, whereby both WAN and LAN share the same spectrum. Further, the WAN uplink device transmits a second message having a second frequency spectrum overlapping the first frequency spectrum to a WAN receiver using an orbital satellite. At least one of the LAN transmitter and the WAN uplink device transmits with a transmission characteristic different from a transmission characteristic of the other. A communication device and method include similar features.
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申请公布号 |
US7787409(B2) |
申请公布日期 |
2010.08.31 |
申请号 |
US20050045314 |
申请日期 |
2005.01.31 |
申请人 |
SOUTHERN FOCUS INVESTMENTS, LLC |
发明人 |
SANDERFORD, JR. H. BRITTON |
分类号 |
H04B7/216;H04L12/28 |
主分类号 |
H04B7/216 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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