JPS524794A - Time interval automatic measuring unit - Google Patents

Time interval automatic measuring unit

Info

Publication number
JPS524794A
JPS524794A JP8009675A JP8009675A JPS524794A JP S524794 A JPS524794 A JP S524794A JP 8009675 A JP8009675 A JP 8009675A JP 8009675 A JP8009675 A JP 8009675A JP S524794 A JPS524794 A JP S524794A
Authority
JP
Japan
Prior art keywords
time interval
measuring unit
automatic measuring
interval automatic
pulse
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
JP8009675A
Other languages
Japanese (ja)
Other versions
JPS5630834B2 (en
Inventor
Shinichi Hirota
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.)
TAIYOU MUSEN KK
Taiyo Musen Co Ltd
Original Assignee
TAIYOU MUSEN KK
Taiyo Musen 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 TAIYOU MUSEN KK, Taiyo Musen Co Ltd filed Critical TAIYOU MUSEN KK
Priority to JP8009675A priority Critical patent/JPS524794A/en
Publication of JPS524794A publication Critical patent/JPS524794A/en
Publication of JPS5630834B2 publication Critical patent/JPS5630834B2/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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
    • G01S1/245—Details of receivers cooperating therewith, e.g. determining positive zero crossing of third cycle in LORAN-C

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Networks Using Active Elements (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

PURPOSE:At every pulse out two rows of pulses, corrective operation is applied to the clock pulse generator and reversible counter, so that the period of the clock pulse is automatically adjusted at high accuracy;and on the other hand, even if one pulse row disappears temporarily, the condition prior to the disappearance can be held.
JP8009675A 1975-06-30 1975-06-30 Time interval automatic measuring unit Granted JPS524794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8009675A JPS524794A (en) 1975-06-30 1975-06-30 Time interval automatic measuring unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8009675A JPS524794A (en) 1975-06-30 1975-06-30 Time interval automatic measuring unit

Publications (2)

Publication Number Publication Date
JPS524794A true JPS524794A (en) 1977-01-14
JPS5630834B2 JPS5630834B2 (en) 1981-07-17

Family

ID=13708651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8009675A Granted JPS524794A (en) 1975-06-30 1975-06-30 Time interval automatic measuring unit

Country Status (1)

Country Link
JP (1) JPS524794A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647561U (en) * 1979-09-20 1981-04-27
JPS59204788A (en) * 1983-05-09 1984-11-20 Marine Instr Co Ltd Propagation time measuring apparatus for ultrasonic wave

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0532014Y2 (en) * 1985-10-29 1993-08-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647561U (en) * 1979-09-20 1981-04-27
JPS59204788A (en) * 1983-05-09 1984-11-20 Marine Instr Co Ltd Propagation time measuring apparatus for ultrasonic wave

Also Published As

Publication number Publication date
JPS5630834B2 (en) 1981-07-17

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