Making electronic ink universally legible
US7605947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Jan 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Enhancement of electronic ink is achieved by automatically displaying a contrasting outline for the ink. The outline provides a visual transition between the ink and the underlying background. The outlining color may be chosen independent of the background color(s). Thus, a user may choose any ink color desired, without regard to the background, and the written ink will be legible over the background. Moreover, the user does not need to change ink color based on the background, but instead may maintain the same ink color over the entire background if the user so desires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.