Electrical computers and digital processing systems: multicomput – Distributed data processing – Client/server
Reexamination Certificate
2006-11-28
2006-11-28
Wiley, David (Department: 2154)
Electrical computers and digital processing systems: multicomput
Distributed data processing
Client/server
C709S243000, C701S213000, C701S220000, C701S208000
Reexamination Certificate
active
07143130
ABSTRACT:
A method and system for multi-tracking among independent individuals without a monitoring center, where an individual is a person, a vehicle, or any other property, enables the individuals to be networked in a group and each individual to search and track other individuals of interest. The portable multi-tracking system is also capable of tracking personnel inside a building, where a self-contained positioning device provides continuous carrier's position information. In the open area a GPS (Global Positioning System) unit is activated to provide precision absolute position data which can be blended with the self-contained data to improve the accuracy and robustness of the positioning services. Thus the present invention provides excellent position tracking outside a building.
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Chan Raymond Y.
David and Raymond Patent Group
Nguyen Dustin
Wiley David
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