Sub-sea fiber optic cable location apparatus with a plurality of transponder means
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United States of America Patent
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Sep 11, 1990
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N/A
app pub date -
Jan 13, 1989
filing date -
Jan 16, 1988
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Expired
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Abstract
A sub-sea fiber-optic cable location indication apparatus wherein a small portion of a light signal carried by a main optical fiber cable is tapped off and is used to trigger or control a parameter of an electromagnetic, or acoustic signal radiated by a transponder carried by the main cable.
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