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JPS5595813A - Integrating distance meter - Google Patents

Integrating distance meter

Info

Publication number
JPS5595813A
JPS5595813A JP178179A JP178179A JPS5595813A JP S5595813 A JPS5595813 A JP S5595813A JP 178179 A JP178179 A JP 178179A JP 178179 A JP178179 A JP 178179A JP S5595813 A JPS5595813 A JP S5595813A
Authority
JP
Japan
Prior art keywords
voltage
memory
data
power source
recovered
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.)
Pending
Application number
JP178179A
Other languages
Japanese (ja)
Inventor
Shigeru Okabayashi
Masami Kiyoto
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP178179A priority Critical patent/JPS5595813A/en
Publication of JPS5595813A publication Critical patent/JPS5595813A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Distances Traversed On The Ground (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE: To decrease the memory using frequency and increase the life time along with a compact design by writing the running distance data into the nonvolatile memory when the reduction of the power voltage is detected and then reading the data when the power voltage is recovered.
CONSTITUTION: In case the voltage of power source 6 is normal, the division voltage of resistances 10 and 10' at command part 4 is higher than the reference level. And the output of differential amplifier 15 becomes negative with no actuation of nonvolatile memory 5. And the running distance data given from integrating part 2 is sent to driving circuit 8 to be displayed at display part 7. With reduction of the voltage of power source 6, capacitor 12 starts discharging. Thus memory 5 and the counter of integrator 2 are driven to avoid discontinuation of operation. At the same time, the data is memorized in memory 5 via timer 17. When the voltage of power source 6 is recovered, capacitor 12 is charged. Thus the data is read out of memory 5 and then added as the preset vaule to be displayed.
COPYRIGHT: (C)1980,JPO&Japio
JP178179A 1979-01-13 1979-01-13 Integrating distance meter Pending JPS5595813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP178179A JPS5595813A (en) 1979-01-13 1979-01-13 Integrating distance meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP178179A JPS5595813A (en) 1979-01-13 1979-01-13 Integrating distance meter

Publications (1)

Publication Number Publication Date
JPS5595813A true JPS5595813A (en) 1980-07-21

Family

ID=11511108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP178179A Pending JPS5595813A (en) 1979-01-13 1979-01-13 Integrating distance meter

Country Status (1)

Country Link
JP (1) JPS5595813A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004381A1 (en) * 1983-04-22 1984-11-08 Hitachi Ltd Electronic odometer
EP0173402B1 (en) * 1984-08-31 1990-09-19 Standard Telefon Og Kabelfabrik A/S Armoured submarine cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004381A1 (en) * 1983-04-22 1984-11-08 Hitachi Ltd Electronic odometer
EP0173402B1 (en) * 1984-08-31 1990-09-19 Standard Telefon Og Kabelfabrik A/S Armoured submarine cable

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