Position data display/control apparatus and methods
US6304212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a position data/display control apparatus and method which uses received position data to display data on the present position. A user selects the nearest area to the user's present position, as determined from received position data, from a storage means which stores a plurality of area names and data for measurement of positions in areas corresponding to the area names. Upon selection, the present position data is converted to position data suitable for measurement of the user's present position based on the data for measurement of a position in an area corresponding to the selected area name. The converted position data is then displayed to the user. Advantageously, a user's present position is displayed relative to the geodetic system in the area corresponding to the selected area name.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.