Title:
DUAL-FREQUENCY FISH FINDER, AND DUAL-FREQUENCY TRNSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/053713
Kind Code:
A1
Abstract:
The purpose is to provide a dual-frequency fish finder, a dual-frequency transmission method, and a program capable of suppressing noise based on interference waves of other frequencies in an echo image of each frequency when transmission waves of two frequencies are transmitted. A dual-frequency fish finder includes a processing circuitry. The processing circuitry is configured to transmit a first frequency signal during a reception period of the second frequency signal in a second transmission cycle between a transmission timing of the second frequency signal and an ending timing of a reception period of the first frequency signal, and to transmit the second frequency signal, having a different frequency from the first frequency signal, during a reception period of the first frequency signal in a first transmission cycle between a transmission timing of the first frequency signal and an ending timing of a reception period of the second frequency signal.
Inventors:
TAKARIKI KEITA (JP)
NISHIKUBO DAISUKE (JP)
MAEDA MASAHIKO (JP)
NISHIKUBO DAISUKE (JP)
MAEDA MASAHIKO (JP)
Application Number:
PCT/JP2023/032722
Publication Date:
March 14, 2024
Filing Date:
September 07, 2023
Export Citation:
Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
G01S15/96; G01S7/53; G10K11/20
Foreign References:
| CN214097782U | 2021-08-31 | |||
| US9354314B2 | 2016-05-31 |
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