Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987186 | Method and system for wavelet-based representation and use of cartographic data | — | 2011-07-26 |
| 7805442 | Method and system for representation of geographical features in a computer-based system | Ole Henry Dorum, Vijaya S. Israni | 2010-09-28 |
| 7730049 | Method for representing the vertical component of road geometry and computing grade or slope | — | 2010-06-01 |
| 7152022 | Application of the ψ-s curve to road geometry extraction and modeling | — | 2006-12-19 |
| 7007011 | Method for representing the vertical component of road geometry and computing grade or slope | — | 2006-02-28 |
| 6985639 | Method for quantifying relative accuracy of database segments | Narayanan Alwar | 2006-01-10 |
| 6862523 | Bowing coefficient representation of curvature of geographic features | — | 2005-03-01 |
| 6732046 | Application of the hough transform to modeling the horizontal component of road geometry and computing heading and curvature | — | 2004-05-04 |
| 6728392 | Shape comparison using a rotational variation metric and applications thereof | — | 2004-04-27 |
| 6681177 | Bowing coefficient representation of curvature of geographic features | — | 2004-01-20 |
| 6636804 | Method for associating the features of two geographic databases | — | 2003-10-21 |
| 6571173 | Three-dimensional space curve comparison using spatial angle variance metric and applications thereof | — | 2003-05-27 |
| 6560531 | Multi-resolution trend metric for shape comparison and applications thereof | — | 2003-05-06 |
| 6473690 | Three-dimensional space curve comparison using spatial angle variance metric and applications thereof | — | 2002-10-29 |