JPH0132473B2 - - Google Patents

Info

Publication number
JPH0132473B2
JPH0132473B2 JP58032575A JP3257583A JPH0132473B2 JP H0132473 B2 JPH0132473 B2 JP H0132473B2 JP 58032575 A JP58032575 A JP 58032575A JP 3257583 A JP3257583 A JP 3257583A JP H0132473 B2 JPH0132473 B2 JP H0132473B2
Authority
JP
Japan
Prior art keywords
distance
signal
vehicle
ultrasonic
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.)
Expired
Application number
JP58032575A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59159081A (ja
Inventor
Shuji Oota
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.)
NEC Home Electronics Ltd
Original Assignee
NEC Home Electronics 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 NEC Home Electronics Ltd filed Critical NEC Home Electronics Ltd
Priority to JP58032575A priority Critical patent/JPS59159081A/ja
Publication of JPS59159081A publication Critical patent/JPS59159081A/ja
Publication of JPH0132473B2 publication Critical patent/JPH0132473B2/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
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles

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)
JP58032575A 1983-02-28 1983-02-28 自動車用後方監視装置 Granted JPS59159081A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58032575A JPS59159081A (ja) 1983-02-28 1983-02-28 自動車用後方監視装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58032575A JPS59159081A (ja) 1983-02-28 1983-02-28 自動車用後方監視装置

Publications (2)

Publication Number Publication Date
JPS59159081A JPS59159081A (ja) 1984-09-08
JPH0132473B2 true JPH0132473B2 (fr) 1989-06-30

Family

ID=12362681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58032575A Granted JPS59159081A (ja) 1983-02-28 1983-02-28 自動車用後方監視装置

Country Status (1)

Country Link
JP (1) JPS59159081A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4821347B2 (ja) * 2006-02-07 2011-11-24 トヨタ自動車株式会社 脇見運転防止装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5674675A (en) * 1979-11-24 1981-06-20 Matsushita Electric Ind Co Ltd Obstacle detection device

Also Published As

Publication number Publication date
JPS59159081A (ja) 1984-09-08

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