Method, system, apparatus, and computer program product for...

Electrical computers and digital processing systems: multicomput – Computer conferencing – Demand based messaging

Reexamination Certificate

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Details

C709S201000, C709S204000, C342S359000, C342S419000, C342S457000, C455S423000, C455S446000

Reexamination Certificate

active

07945626

ABSTRACT:
A method that determines a physical location of an unknown position device (UPD) in a communication network including a plurality of known position devices (KDPs), in which a message transmitted by the UPD is received by plural KDPs. The method includes measuring a signal quality of each received message received by the plural KDPs from the UPD, and computing the likely physical location of the UPD based on the physical location of the plural KPDs receiving the message from the UPD and the respective signal quality measured at each KPD.

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