Writeboard method and apparatus
US7224347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2002 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jan 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F9/33
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writeboard according to an embodiment of the invention includes plural display cells capable of controlling light within a visible-light spectrum, the display cells being arranged over a display surface of the writeboard. The writeboard also typically includes plural memory cells coupled with the display cells, and plural first receivers arranged with the display cells and the memory cells over the display surface. The first receivers typically are configured to receive transmitted writing information and to communicate the transmitted writing information to corresponding memory cells for storage. Corresponding display cells thus may be selectively activated in accordance with the transmitted writing information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.