JPS57124270A - Waring device for amount of shoals of fish - Google Patents

Waring device for amount of shoals of fish

Info

Publication number
JPS57124270A
JPS57124270A JP1070281A JP1070281A JPS57124270A JP S57124270 A JPS57124270 A JP S57124270A JP 1070281 A JP1070281 A JP 1070281A JP 1070281 A JP1070281 A JP 1070281A JP S57124270 A JPS57124270 A JP S57124270A
Authority
JP
Japan
Prior art keywords
signal
fish
circuit
depth
pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1070281A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6342758B2 (enrdf_load_stackoverflow
Inventor
Mitsuhiro Inouchi
Takumi Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP1070281A priority Critical patent/JPS57124270A/ja
Publication of JPS57124270A publication Critical patent/JPS57124270A/ja
Publication of JPS6342758B2 publication Critical patent/JPS6342758B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/96—Sonar systems specially adapted for specific applications for locating fish

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP1070281A 1981-01-26 1981-01-26 Waring device for amount of shoals of fish Granted JPS57124270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1070281A JPS57124270A (en) 1981-01-26 1981-01-26 Waring device for amount of shoals of fish

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1070281A JPS57124270A (en) 1981-01-26 1981-01-26 Waring device for amount of shoals of fish

Publications (2)

Publication Number Publication Date
JPS57124270A true JPS57124270A (en) 1982-08-03
JPS6342758B2 JPS6342758B2 (enrdf_load_stackoverflow) 1988-08-25

Family

ID=11757622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1070281A Granted JPS57124270A (en) 1981-01-26 1981-01-26 Waring device for amount of shoals of fish

Country Status (1)

Country Link
JP (1) JPS57124270A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01173890A (ja) * 1987-12-28 1989-07-10 Japan Radio Co Ltd 魚群探知機における魚群探知警報発生装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119062U (ja) * 1991-04-05 1992-10-23 株式会社ジツト 昇降自在な庭園

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01173890A (ja) * 1987-12-28 1989-07-10 Japan Radio Co Ltd 魚群探知機における魚群探知警報発生装置

Also Published As

Publication number Publication date
JPS6342758B2 (enrdf_load_stackoverflow) 1988-08-25

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