Method and apparatus for drawing and erasing calligraphic ink objects on a display surface
US9207858B2 · kind B2 · utility
4Cited by
19References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2010 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Dec 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of generating a calligraphic ink object, comprising sampling contact coordinates generated by a coordinate input device during writing thereon using a pointer to generate an ink trajectory generally representing the writing; generating an ink envelope, the ink envelope comprising line segments joining pointer instances at the sampled contact coordinates; generating a smoothed ink envelope at least by fitting curves to points on the ink envelope; and drawing the smoothed ink envelope on a display thereby to generate the calligraphic ink object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.