On-board navigation system having audible tone indicating remaining distance or time in a trip
US5394332A · kind A · utility
85Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1992 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Feb 26, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3629
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to an on-board navigation system which continuously informs a driver of the degree of approach of a vehicle to a destination by outputting a sound suited to the driver's actual running feeling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.