US 11,668,822 B2
Underwater detection apparatus and underwater detection method
Nobuo Suzuki, Kobe (JP); Kohei Kozuki, Kariya (JP); Takeshi Kawajiri, Takarazuka (JP); and Yuji Ebita, Settsu (JP)
Assigned to FURUNO ELECTRIC COMPANY LIMITED, Nishinomiya (JP)
Filed by FURUNO ELECTRIC CO., LTD., Nishinomiya (JP)
Filed on Oct. 14, 2022, as Appl. No. 18/46,712.
Application 18/046,712 is a continuation of application No. 16/846,088, filed on Apr. 10, 2020, granted, now 11,513,217.
Claims priority of application No. 2019-095204 (JP), filed on May 21, 2019.
Prior Publication US 2023/0063174 A1, Mar. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 15/89 (2006.01); G01S 15/96 (2006.01); G01S 7/52 (2006.01); G10K 11/00 (2006.01)
CPC G01S 15/8993 (2013.01) [G01S 7/52019 (2013.01); G01S 7/52023 (2013.01); G01S 15/96 (2013.01); G10K 11/006 (2013.01); G10K 2200/11 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An underwater detection apparatus, comprising:
a transmission transducer configured to transmit a transmission wave within a given fan-shaped transmission space, the fan-shaped transmission space having a first transmission width in a given first plane and a second transmission width in a second plane perpendicular to the first plane;
a reception transducer configured to receive, as a reception wave, a reflection wave of the transmission wave within a given fan-shaped reception space, the fan-shaped reception space having a first reception width in the first plane and a second reception width in the second plane, the second reception width being wider than the second transmission width, and in the second plane, the fan-shaped transmission space being within the fan-shaped reception space; and
a motor configured to rotate the fan-shaped transmission space and the fan-shaped reception space.