Portable map display apparatus
US4570227A · kind A · utility
181Cited by
5References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 11, 1982 |
| Grant date | Feb 11, 1986 |
| Priority date | — |
| Expiry date | Aug 11, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable map display apparatus stores, in a memory, features of a plurality of points on a given map and features of routes connecting such points and, on receiving input signals concerning a given point of start and a given destination, sequentially displays, on an output device, the information on the optimum route to be followed in reaching the destination from the point of start.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.