System for estimating contact duration between a pair of communication apparatuses

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United States of America Patent

PATENT NO 11394599
APP PUB NO 20210377096A1
SERIAL NO

16980402

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Abstract

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A system for estimating contact duration between a pair of communication apparatuses. The system includes a storage device and a monitoring apparatus connected to the apparatuses to collect ARP packets broadcast in the network by a first communication apparatus, and to add timestamp information to the ARP packets, and to store the ARP packets with the timestamp in the storage device DB. The monitoring apparatus further extracts selected ARP packets from the ARP packets stored in the storage device DB, wherein the selected ARP packets includes destination MAC address which is the same as a MAC address of a second communication apparatus, wherein the timestamp information of the selected ARP packets is within a predetermined time range TM. The monitoring apparatus further estimates contact duration between the first and second communication apparatuses based on timestamp information of the selected ARP packets.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keeni, Glenn Mansfield Miyagi, JP 9 49

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