Tracking motion of a writing instrument
US7268774B2 · kind B2 · utility
51Cited by
96References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2003 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Aug 21, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Motion of a writing instrument is tracked from sensors located in the vicinity. The signals generated from the sensors are processed and used in a wide variety of ways.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.