Group judgment device

Details Group judgment device Group judgment device

2011-04-12

2011-04-12

Burgess, Barbara N (Department: 2457)

Electrical computers and digital processing systems: multicomput

Computer conferencing

C709S203000, C709S246000, C709S247000, C705S026640, C705S027200

Reexamination Certificate

active

07925697

ABSTRACT:
In a server, an echo-request transmitting unit204transmits echo-request data to a target device, and an echo-reply receiving unit205receives echo-reply data from the target device. A time measuring unit206measures, as the target time, the time required between transmission of the echo-request data and reception of the echo-reply data, and compares the target time with the reference time. In this way, the server judges whether the target device connected to its network belongs to a predetermined group.

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