Display unit of speedometer for automobile
US4631513A · kind A · utility
7Cited by
4References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 13, 1983 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Apr 13, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A display unit for a speedometer for an automobile, wherein car speed is sensed and displayed in at least two modes including a standard scale mode when car speed is above a set standard speed, and an enlarged scale mode when car speed falls below a lower set speed. The display unit includes a bar graph display, and a scale display, both of which are controlled in correspondence with car speed to operate in either the standard scale mode or the enlarged scale mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.