Methods and system to assist search for lost and submerged objects

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United States of America Patent

PATENT NO 9995824
SERIAL NO

14469825

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Abstract

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Devices and methods for aiding a large area search for submerged objects such as aircraft. A searcher transmits interrogation signals to be received by a device at the target object. The interrogation signals have a long range relative to that of returned signals. The target device responds with a ping signal modified to be more easily found by means of information contained in the interrogation signal. The information may be inherent in the nature of the received signal or data encoded and embedded by the searching device. The target device may use a microprocessor to do complex operations using the information from the interrogation signal and other information. Detection of a weak ping is facilitated by such means as being beamed in the direction of the interrogation, arriving at a predictable time, or having parameters adapted to values requested by the searcher.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harvey, Thomas Danaher Rockville, US 53 557

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