Electronic pencil and method for indicating color of electronic pencil
US8803849B2 · kind B2 · utility
2Cited by
2References
17Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | May 22, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Nov 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic pencil reads color information from a first color signal wirelessly sent from a drawing board, controls a color unit in the electronic pencil to indicate a corresponding color according to the read color information, and transmits a second color signal as a reply to the first color signal to the drawing board. The drawing board displays track having the corresponding color when a user draws on the drawing board using the electronic pencil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.