JPS5684512A - Electronic odometer for vehicle - Google Patents
Electronic odometer for vehicleInfo
- Publication number
- JPS5684512A JPS5684512A JP16034979A JP16034979A JPS5684512A JP S5684512 A JPS5684512 A JP S5684512A JP 16034979 A JP16034979 A JP 16034979A JP 16034979 A JP16034979 A JP 16034979A JP S5684512 A JPS5684512 A JP S5684512A
- Authority
- JP
- Japan
- Prior art keywords
- nonvolatile memory
- mileage
- turned
- data
- pulse signal
- 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
Links
Landscapes
- Measurement Of Distances Traversed On The Ground (AREA)
Abstract
PURPOSE: To prolong the lifetime of a nonvolatile memory through reduction of the times of writing therein and to unnecessitate an operation circuit by storing a counted value of a preset counter in the nonvolatile memory only when a power supply switch is turned OFF.
CONSTITUTION: When an ignition switch 1 is turned ON, the data of integrated mileage stored in the nonvolatile memory 4 are preset in the presettable counter 3. With these data being used as an initial value, a mileage pulse signal SD inputted by one pulse per mileage of 0.1km after the start of traveling is further counted, and the counted value thereof is indicated as the integrated mileage as it is in a digital indicator 6. Next, when the power suppy siwtch 1 is turned OFF, the nonvolatile memory 4 memorizes the data of integrated mileage of the presettable counter 3 by a pulse signal Ps outputted from a timing control circuit 2 capable of being operated by the voltage a point a of a voltage retainer 7.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16034979A JPS5684512A (en) | 1979-12-12 | 1979-12-12 | Electronic odometer for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16034979A JPS5684512A (en) | 1979-12-12 | 1979-12-12 | Electronic odometer for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5684512A true JPS5684512A (en) | 1981-07-09 |
Family
ID=15713052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16034979A Pending JPS5684512A (en) | 1979-12-12 | 1979-12-12 | Electronic odometer for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5684512A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870120A (en) * | 1981-10-21 | 1983-04-26 | Toyota Motor Corp | Traveling locus display device |
| JPS5910808A (en) * | 1982-07-12 | 1984-01-20 | Hitachi Ltd | Odometer for automobile |
| JPS59192914A (en) * | 1983-04-15 | 1984-11-01 | Matsushita Electric Ind Co Ltd | Recording device of travel distance |
| US5103411A (en) * | 1989-05-31 | 1992-04-07 | Nippon Seiki Co., Ltd. | Electronic odometer wherein medium order digit data addresses locations which store high and low order digit data |
| JP2002340568A (en) * | 2001-05-16 | 2002-11-27 | Sony Corp | Navigation system, running-data control system, server, program and running-distance transmitter |
-
1979
- 1979-12-12 JP JP16034979A patent/JPS5684512A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870120A (en) * | 1981-10-21 | 1983-04-26 | Toyota Motor Corp | Traveling locus display device |
| JPS5910808A (en) * | 1982-07-12 | 1984-01-20 | Hitachi Ltd | Odometer for automobile |
| JPS59192914A (en) * | 1983-04-15 | 1984-11-01 | Matsushita Electric Ind Co Ltd | Recording device of travel distance |
| US5103411A (en) * | 1989-05-31 | 1992-04-07 | Nippon Seiki Co., Ltd. | Electronic odometer wherein medium order digit data addresses locations which store high and low order digit data |
| JP2002340568A (en) * | 2001-05-16 | 2002-11-27 | Sony Corp | Navigation system, running-data control system, server, program and running-distance transmitter |
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