United States Patent Application: 0060208946 - SYSTEM AND METHOD FOR GLOBAL POSITIONING SYSTEM REPEATER
- From: "nickw7coc@xxxxxxxxx" <nickw7coc@xxxxxxxxx>
- Date: 15 Feb 2007 10:31:32 -0800
Abstract
An indoor GPS repeater unit comprising a directional receive aerial
for receiving GPS signals from one or more satellites in a preselected
area of the sky, a transmitting aerial for transmitting the received
GPS signals; and, RF amplification means for enhancing the received
GPS signals before transmitting into an indoor area is disclosed. One
or more such GPS repeater units are used to reproduce the satellite
constellation within buildings or underground to provide GPS coverage
in these environments."
<http://appft1.uspto.gov/netacgi/nph-Parser?
Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO
%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060208946%22.PGNR.&OS=DN/
20060208946&RS=DN/20060208946>
Got this from Nature where the headline was GPS Underground...
.
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