GPS receivers with data ports for the uploading and downloading of absolute position information
US5450344A · kind A · utility
130Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Apr 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A GPS receiver comprises a data input/output port for communication of datum-less position fixes in an earth-centered, earth-fixed (ECEF) coordinate style to avoid the errors associated with not communicating the datum choice with latitude longitude data communication formats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.