Node location by differential time measurements

Details Node location by differential time measurements Node location by differential time measurements

1989-05-25

1993-09-21

Clark, David L.

Boots, shoes, and leggings

364569, 34082549, 370 17, 379 24, 379 25, G01B 702

Patent

active

052474640

ABSTRACT:
A system for determining the physical location of nodes on a network. The system includes two stations each of which has a clock. Each station uses its clock to determine the arrival times at the station of a packet transmitted over the network from a first node to a second node and of a reply packet sent by the second node to the first node. The arrival times of the packets and the corresponding reply packets are then used to calculate the distance along the network which separates the first and second node. Measurement of packet arrival times for all of the nodes yields the position of all of the nodes on the network.

REFERENCES:
patent: 4890278 (1989-12-01), Felker et al.
patent: 4901004 (1990-02-01), King
patent: 4916444 (1990-04-01), King
patent: 4939718 (1990-07-01), Servel et al.

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