Method and system for scrolling a map display in a navigation application
US6163749A · kind A · utility
258Cited by
42References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for implementing a smooth scrolling function in a map display tool used with a navigation system and a map database. The system includes a map processing layer in the map display tool having a multi-tasking abstraction layer and a synchronization object for allowing portability between different platforms. The method includes the steps of updating a display from a first graphics buffer while executing a look-ahead process in the background and filling a second graphics buffer with map information on a predicted future position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.