G - Physics – 01 – S
Patent
G - Physics
01
S
343/19
G01S 13/78 (2006.01) G01V 3/00 (2006.01) G01V 3/12 (2006.01) G01V 3/14 (2006.01)
Patent
CA 2033304
Abstract An all-dielectric cable which is destined to be buried is provided with at least one electronically resonant marker. After the cable is buried, a tradesperson may locate the cable by causing an electromagnetic signal, which comprises at least one frequency, to be transmitted by a transceiver and to be induced into the electronically resonant marker associated with the cable. A return signal, which is radiated by the electronically resonant marker and which is at a frequency different from the at least one frequency, is received by the transceiver. Characteristics of the return signal provide useful information for the determination of the location of the buried cable.
Davis Donald D.
Pesto William S.
Schepis Al J.
Turner Loyce A.
American Telephone And Telegraph Company
Davis Donald D.
Kirby Eades Gale Baker
Pesto William S.
Schepis Al J.
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