Electronic odometer
US4803646A · kind A · utility
23Cited by
16References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Aug 26, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C22/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for measuring distance traveled by a vehicle periodically updates the accumulated measurements, displays the updated measurements and electronically stores corresponding accumulations of updated distance data in a non-volatile memory device. The system employs a method of reading through the sequentially ordered storage locations of the non-volatile memory to determine the most recently stored correct data value as a value to be both displayed and used as a base value for subsequent measured distance accumulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.