Navigation system with destination set by longitude and latitude coordinate points
US5544061A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | May 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096894
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A navigation system has stored route information based upon longitude and latitude point coordinates for being retrieved and displayed to guide a user from a present position to a destination. The point coordinates of the destination are input to the navigation system by manual entry of the longitude and latitude point coordinates, by manual entry of a single multiple-digit alphanumeric code (G-code) containing combined longitude and latitude point coordinates, or by receipt of an external radio, optical, telephone or wire transmission of the longitude and latitude point coordinates from an information center or from a data storage medium such as a magnetic or electronic note card. The longitude and latitude point coordinates or the single multiple-digit alphanumeric code for manual entry can be read from a list of places or a map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.