JPH0117556B2 - - Google Patents

Info

Publication number
JPH0117556B2
JPH0117556B2 JP8217482A JP8217482A JPH0117556B2 JP H0117556 B2 JPH0117556 B2 JP H0117556B2 JP 8217482 A JP8217482 A JP 8217482A JP 8217482 A JP8217482 A JP 8217482A JP H0117556 B2 JPH0117556 B2 JP H0117556B2
Authority
JP
Japan
Prior art keywords
signal
circuit
output
pulse
counter
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.)
Expired
Application number
JP8217482A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58198780A (ja
Inventor
Sumio Sekikawa
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 JP8217482A priority Critical patent/JPS58198780A/ja
Publication of JPS58198780A publication Critical patent/JPS58198780A/ja
Publication of JPH0117556B2 publication Critical patent/JPH0117556B2/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)
JP8217482A 1982-05-14 1982-05-14 水中探知表示装置 Granted JPS58198780A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8217482A JPS58198780A (ja) 1982-05-14 1982-05-14 水中探知表示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8217482A JPS58198780A (ja) 1982-05-14 1982-05-14 水中探知表示装置

Publications (2)

Publication Number Publication Date
JPS58198780A JPS58198780A (ja) 1983-11-18
JPH0117556B2 true JPH0117556B2 (enrdf_load_stackoverflow) 1989-03-30

Family

ID=13767064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8217482A Granted JPS58198780A (ja) 1982-05-14 1982-05-14 水中探知表示装置

Country Status (1)

Country Link
JP (1) JPS58198780A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8407512D0 (en) * 1984-03-22 1984-05-31 Salubre Investments Processing of reflected signals
JPS62184316A (ja) * 1986-02-07 1987-08-12 Ishida Scales Mfg Co Ltd 計量装置

Also Published As

Publication number Publication date
JPS58198780A (ja) 1983-11-18

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