Method, apparatus, and manufacture for document writing and annotation with virtual ink
US8971568B1 · kind B1 · utility
10Cited by
28References
30Claims
0Family size
Inventor
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/376
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and manufacture for writing and annotation is provided. An image is provided on a surface. Each time invisible ink is deposited on the surface, the location of the invisible ink deposited on the surface is detected before the invisible ink vanishes from the surface. The invisible ink automatically vanishes from the surface in less than one minute from the time that the invisible ink is deposited on the surface. Location information is stored based on each detected location. The projected image is modified based, at least in part, on the stored location information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.