JPS54143671A - Echo detector - Google Patents

Echo detector

Info

Publication number
JPS54143671A
JPS54143671A JP5256478A JP5256478A JPS54143671A JP S54143671 A JPS54143671 A JP S54143671A JP 5256478 A JP5256478 A JP 5256478A JP 5256478 A JP5256478 A JP 5256478A JP S54143671 A JPS54143671 A JP S54143671A
Authority
JP
Japan
Prior art keywords
transmitter
receiver
control circuit
distance counter
counter 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
JP5256478A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6220507B2 (enrdf_load_stackoverflow
Inventor
Hiroharu 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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5256478A priority Critical patent/JPS54143671A/ja
Publication of JPS54143671A publication Critical patent/JPS54143671A/ja
Publication of JPS6220507B2 publication Critical patent/JPS6220507B2/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
    • G01S15/14—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception

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)
JP5256478A 1978-04-28 1978-04-28 Echo detector Granted JPS54143671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5256478A JPS54143671A (en) 1978-04-28 1978-04-28 Echo detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5256478A JPS54143671A (en) 1978-04-28 1978-04-28 Echo detector

Publications (2)

Publication Number Publication Date
JPS54143671A true JPS54143671A (en) 1979-11-09
JPS6220507B2 JPS6220507B2 (enrdf_load_stackoverflow) 1987-05-07

Family

ID=12918288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5256478A Granted JPS54143671A (en) 1978-04-28 1978-04-28 Echo detector

Country Status (1)

Country Link
JP (1) JPS54143671A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124673A (enrdf_load_stackoverflow) * 1974-02-21 1975-09-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124673A (enrdf_load_stackoverflow) * 1974-02-21 1975-09-30

Also Published As

Publication number Publication date
JPS6220507B2 (enrdf_load_stackoverflow) 1987-05-07

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