Processing collisions between digitally represented mobile objects and free form dynamically created electronic ink
US6722987B2 · kind B2 · utility
10Cited by
0References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Aug 13, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2300/8094
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A computer user enters free-form electronic ink at run-time of an application program for manipulating the trajectories of mobile objects within the application program. Collisions between mobile objects and ink are processed by determining a collision angle that bisects a first and last intersecting point along a periphery of the first object. After the collision, the first object moves away from the ink as if the first object collided with a flat surface oriented perpendicular to the collision angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.