System and method for tracking the location of multiple...

Details System and method for tracking the location of multiple... System and method for tracking the location of multiple...

2008-01-15

2010-02-02

Nguyen, David Q (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S423000, C455S424000, C455S457000

Reexamination Certificate

active

07657265

ABSTRACT:
An object locating system (100), the system (100) comprising at least first and second mobile devices (120, 130) associated by a relationship defined at least in part by a threshold. The at least first and second mobile devices are operable to be monitored by a communication network as one mobile device (120) or as separate mobile devices (120, 130) as a function of the relationship relative to the threshold.

REFERENCES:
patent: 6618593 (2003-09-01), Drutman et al.
patent: 2002/0169539 (2002-11-01), Menard et al.
patent: 2003/0030561 (2003-02-01), Yafuso et al.
patent: 2003/0233189 (2003-12-01), Hsiao et al.
patent: 2005/0272441 (2005-12-01), Bates et al.
patent: WO 0132480 (2001-05-01), None

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