Positioning of mobile wireless terminal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 15, 2008
Grant Date -
Feb 15, 2007
app pub date -
Oct 18, 2006
filing date -
Apr 18, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wireless apparatus for determining a phase difference of a received RF signal, and method. The apparatus includes antennas displaced from each other by a predetermined distance for receiving an RF signal. The apparatus also includes an exclusive OR (EXOR) circuit comparing binary signals derived from the received RF signal that are associated with respective antennas. An absolute phase difference is based on a pulse width of the comparison.
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