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

H - Electricity

04

L

340/71

H04L 5/14 (2006.01) H04L 12/26 (2006.01)

Patent

CA 2005271

Abstract of the Disclosure 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 t1 and t2, respectively, of these signals, and determines the temporal distance T1 from the broadcasting station to the echo module by the equation T1 = (t2 - t1 -.DELTA.tdp )/2, where .DELTA.tdp is a time delay associated with validation of the echo pulse.

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