US 12,276,723 B2
Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments
Carlos Alberto Fonts, Dallas, TX (US); Carlos Ernesto Fonts, Dallas, TX (US); Mark Allen O'Hair, Santa Fe, NM (US); John Richard O'Hair, Ruskin, FL (US); and Richard Dolan Randall, Rowlett, TX (US)
Assigned to HG Partners, LLC, Dallas, TX (US)
Filed by HG Partners, LLC, Dallas, TX (US)
Filed on May 23, 2024, as Appl. No. 18/672,741.
Application 18/672,741 is a continuation of application No. 18/200,930, filed on May 23, 2023, granted, now 12,007,471.
Application 18/200,930 is a continuation of application No. 17/830,035, filed on Jun. 1, 2022, granted, now 11,662,458, issued on May 30, 2023.
Application 17/830,035 is a continuation of application No. 17/498,420, filed on Oct. 11, 2021, granted, now 11,353,576, issued on Jun. 7, 2022.
Application 17/498,420 is a continuation of application No. 17/033,046, filed on Sep. 25, 2020, granted, now 11,150,341, issued on Oct. 19, 2021.
Claims priority of provisional application 62/978,021, filed on Feb. 18, 2020.
Prior Publication US 2024/0319363 A1, Sep. 26, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 13/89 (2006.01); B63B 21/20 (2006.01); B63B 21/56 (2006.01); B63B 35/00 (2020.01); G01S 7/04 (2006.01); G01S 13/32 (2006.01); G01V 9/00 (2006.01)
CPC G01S 13/89 (2013.01) [B63B 21/56 (2013.01); B63B 35/00 (2013.01); G01S 7/04 (2013.01); G01S 13/32 (2013.01); G01V 9/00 (2013.01); B63B 21/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna system for detecting metals in an underwater environment, comprising:
at least one signal generator, at least one transmitter (Tx) antenna, at least one receiver (Rx) antenna, and at least one signal processor;
wherein the at least one signal generator is operable to emit at least one transmission signal to a target area through the at least one Tx antenna;
wherein the at least one transmission signal is an extremely low frequency (ELF) signal;
wherein the at least one Rx antenna is operable to receive at least one return signal from the target area;
wherein the at least one signal processor is operable to analyze the at least one return signal;
wherein the at least one signal processor is operable to detect at least one target object in the target area based on the at least one return signal.