Cost zones
US6026384A · kind A · utility
38Cited by
7References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1997 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Oct 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B15/06
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A cost zone about an origin on an digital map includes the area on the map that can be traveled to, from the origin, which has a cost of travel less than a predetermined cost. The cost can be measured in distance, time of travel, ease of turning, tolls, etc. The steps of creating a cost zone include identifying a set of decision points on the map that are within a predetermined factor of the desired cost, triangulating the decision points to create a set of triangles and interpolating along a subset of the sides of the triangles to estimate the locations along the sides that can be traveled to at the desired cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.