JPS6223830B2 - - Google Patents

Info

Publication number
JPS6223830B2
JPS6223830B2 JP3578581A JP3578581A JPS6223830B2 JP S6223830 B2 JPS6223830 B2 JP S6223830B2 JP 3578581 A JP3578581 A JP 3578581A JP 3578581 A JP3578581 A JP 3578581A JP S6223830 B2 JPS6223830 B2 JP S6223830B2
Authority
JP
Japan
Prior art keywords
circuit
signal
pulse
switch
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.)
Expired
Application number
JP3578581A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57149977A (en
Inventor
Hideyuki Takahashi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP3578581A priority Critical patent/JPS57149977A/ja
Publication of JPS57149977A publication Critical patent/JPS57149977A/ja
Publication of JPS6223830B2 publication Critical patent/JPS6223830B2/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP3578581A 1981-03-12 1981-03-12 Acoustic distance sounder Granted JPS57149977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3578581A JPS57149977A (en) 1981-03-12 1981-03-12 Acoustic distance sounder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3578581A JPS57149977A (en) 1981-03-12 1981-03-12 Acoustic distance sounder

Publications (2)

Publication Number Publication Date
JPS57149977A JPS57149977A (en) 1982-09-16
JPS6223830B2 true JPS6223830B2 (enrdf_load_html_response) 1987-05-25

Family

ID=12451552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3578581A Granted JPS57149977A (en) 1981-03-12 1981-03-12 Acoustic distance sounder

Country Status (1)

Country Link
JP (1) JPS57149977A (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPS57149977A (en) 1982-09-16

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