JPS57165777A - Obstacle detection device for ultrasonic wave - Google Patents

Obstacle detection device for ultrasonic wave

Info

Publication number
JPS57165777A
JPS57165777A JP56051474A JP5147481A JPS57165777A JP S57165777 A JPS57165777 A JP S57165777A JP 56051474 A JP56051474 A JP 56051474A JP 5147481 A JP5147481 A JP 5147481A JP S57165777 A JPS57165777 A JP S57165777A
Authority
JP
Japan
Prior art keywords
distance
ultrasonic wave
wave
detected
latch circuit
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
JP56051474A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6343718B2 (enrdf_load_stackoverflow
Inventor
Hideo Shibuya
Fumio Kosuge
Tomoaki Abe
Makoto Otsuki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56051474A priority Critical patent/JPS57165777A/ja
Publication of JPS57165777A publication Critical patent/JPS57165777A/ja
Publication of JPS6343718B2 publication Critical patent/JPS6343718B2/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
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/12—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse

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)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP56051474A 1981-04-06 1981-04-06 Obstacle detection device for ultrasonic wave Granted JPS57165777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56051474A JPS57165777A (en) 1981-04-06 1981-04-06 Obstacle detection device for ultrasonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56051474A JPS57165777A (en) 1981-04-06 1981-04-06 Obstacle detection device for ultrasonic wave

Publications (2)

Publication Number Publication Date
JPS57165777A true JPS57165777A (en) 1982-10-12
JPS6343718B2 JPS6343718B2 (enrdf_load_stackoverflow) 1988-09-01

Family

ID=12887943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56051474A Granted JPS57165777A (en) 1981-04-06 1981-04-06 Obstacle detection device for ultrasonic wave

Country Status (1)

Country Link
JP (1) JPS57165777A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643582A (en) * 1987-06-26 1989-01-09 Kurita Water Ind Ltd Ultrasonic range finder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5041912U (enrdf_load_stackoverflow) * 1973-08-09 1975-04-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5041912U (enrdf_load_stackoverflow) * 1973-08-09 1975-04-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643582A (en) * 1987-06-26 1989-01-09 Kurita Water Ind Ltd Ultrasonic range finder

Also Published As

Publication number Publication date
JPS6343718B2 (enrdf_load_stackoverflow) 1988-09-01

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