Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2009-05-01
2011-12-20
Hu, Jinsong (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456200, C455S456100, C370S338000, C370S331000
Reexamination Certificate
active
08081991
ABSTRACT:
A system and method is described herein to determine the physical location of a user within an edifice. At least three wireless access points, for example, 802.11 nodes, receives and transmits information to a handheld device in order to determine the location information.
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Males Jared R.
Worrell Gary C.
Ahmad Aisha
Fernandez Benjamin Morales
Hu Jinsong
The Johns Hopkins University
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