Broadcast station locator for a local area network

Details Broadcast station locator for a local area network Broadcast station locator for a local area network

1989-02-28

1991-09-10

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 851, H04J 314

Patent

active

050480090

ABSTRACT:
Method and apparatus for determining the location of a broadcasting station in a local area network communications system such as Ethernet that is arranged in a bus topology. An echo module, positioned at one end of a cable, receives a packet broadcast by a station and broadcasts a distinctive echo pulse on the cable during the interframe gap or at another chosen time. A processor module positioned at a second end of the cable receives the originally broadcast packet and the echo pulse, notes the times of receipt t.sub.1 and t.sub.2, respectively, of these signals, and determines the temporal distance T.sub.1 from the broadcasting station to the echo module by the equation

REFERENCES:
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Dono van-Mierop et al., "The 82586 LAN Controller Chip", 1983, pp. 283-296.

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