JPS5716371A - Underwater sound generator - Google Patents

Underwater sound generator

Info

Publication number
JPS5716371A
JPS5716371A JP9055880A JP9055880A JPS5716371A JP S5716371 A JPS5716371 A JP S5716371A JP 9055880 A JP9055880 A JP 9055880A JP 9055880 A JP9055880 A JP 9055880A JP S5716371 A JPS5716371 A JP S5716371A
Authority
JP
Japan
Prior art keywords
output
circuit
pattern signal
sound generator
receiver
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.)
Pending
Application number
JP9055880A
Other languages
Japanese (ja)
Inventor
Takeyasu Iga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9055880A priority Critical patent/JPS5716371A/en
Publication of JPS5716371A publication Critical patent/JPS5716371A/en
Pending 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
    • G01S15/74—Systems using reradiation of acoustic waves, e.g. IFF, i.e. identification of friend or foe

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To make one underwater sound generator perform functions of plural under water sound generators by composing to generate any pattern signal as necessary. CONSTITUTION:A control symbol signal wave 1 is received by a receiver 2. Output of the receiver 2 is inputted to a discriminating circuit 4, after intensified by an intensifier 3. The discriminating circuit 4 determines the type of the control symbol signal, and sends the discriminated results to a pattern signal generating circuit 6. The pattern signal generating circuit 6 sends the specified frequency and specified time length pulse corresponding to the output of the discriminating circuit 4 to an output circuit 8, and generates sound through a transmitter 9 as an output signal wave 10.
JP9055880A 1980-07-04 1980-07-04 Underwater sound generator Pending JPS5716371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9055880A JPS5716371A (en) 1980-07-04 1980-07-04 Underwater sound generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9055880A JPS5716371A (en) 1980-07-04 1980-07-04 Underwater sound generator

Publications (1)

Publication Number Publication Date
JPS5716371A true JPS5716371A (en) 1982-01-27

Family

ID=14001735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9055880A Pending JPS5716371A (en) 1980-07-04 1980-07-04 Underwater sound generator

Country Status (1)

Country Link
JP (1) JPS5716371A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61218974A (en) * 1985-03-25 1986-09-29 Matsushita Electric Works Ltd Ultrasonic type tracking device
JPH0243674U (en) * 1988-09-19 1990-03-26

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028753B1 (en) * 1968-11-30 1975-09-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028753B1 (en) * 1968-11-30 1975-09-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61218974A (en) * 1985-03-25 1986-09-29 Matsushita Electric Works Ltd Ultrasonic type tracking device
JPH0243674U (en) * 1988-09-19 1990-03-26

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