Address verification system

Details Address verification system Address verification system

1978-07-31

1979-07-17

Claffy, Kathleen H.

Telegraphy

Systems

Printing

179 15AL, 178 2C, 340168B, H04B 346

Patent

active

041616359

ABSTRACT:
An address verification system is described for use in a communications system comprising a transmission path (14) having sequence of remote stations (1, 2, ... n) distributed therealong. After accessing the desired station, a loop-back (32) is established at the addressed station to a second transmission path (15) having a second sequence of stations (1', 2' ... n'). Verification is obtained by transmitting a series of p+1 signal bursts, where p is the total number of stations in the loop-back path. By designing each station so that it deletes one of the signal bursts, a single burst will be received at a verification detector (23) when and if the proper station is addressed. It is an advantage of the invention that it can be used with all types of communication systems. It is a further advantage that it permits the use of identical repeaters at all the remote stations.

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patent: 4025737 (1977-05-01), Brewer
patent: 4069402 (1978-01-01), Mantovani et al.
patent: 4122358 (1978-10-01), Altmann

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