Return route indication device for automotive vehicles
US4563685A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1982 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Dec 6, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3626
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for indicating information on the return route for an automotive vehicle includes a memory and control portion for successively storing the detected direction signals and the detected distance signals on the route to a destination and successively generating indication signals to the extent of a predetermined distance in the forward direction on the return route on the basis of the stored detected direction signals and the distance signals. The device also includes a circuit for correcting the difference between the distance of the vehicle travel on the route to the destination and the return route, so that the correct indication of information of the return route is displayed on a display device such as a CRT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.