Pen out-of-proximity handwriting-recognition trigger
US7027648B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | May 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/1423
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a computer system that accepts handwritten input, a digitizer tracks the location of a user's pen while the pen is not in contact with the digitizer's writing surface. The digitizer maps the pen's three-dimensional location into a two-dimensional location on the digitizer's writing surface. Handwriting-recognition is triggered for handwriting entered into a handwriting-recognition task area upon detecting that the user has lifted the pen off of the digitizer's writing surface and that the pen has moved out of proximity from the handwriting-recognition task area. The handwriting-recognition triggering may be inhibited when the pen is down and in contact with the digitizer's writing surface in an inking orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.