Position measuring system and method therefor
US5563608A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a position measuring system, a position of a moving body is derived when data is sufficient for such derivation. On the other hand, when data is insufficient for such derivation, an area which may include the position of the moving body is derived. Accordingly, a user correctly evaluates reliability of information which is displayed. In a position measuring method, a measurement error of the derived position is evaluated. Further, a moving error evaluation is performed to evaluate an increase of the error. By changing the measurement error of the derived position, the area which includes the position of the moving body with high reliability can be displayed to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.