Handwriting input device
US8780040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2010 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Mar 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A handwriting input device includes a housing and a nib selectively exposed from a bottom side of the housing or hidden in the housing. The device further includes a pressure sensor, a motion sensor, and a microcontroller. The pressure sensor generates pressure signals when the nib is depressed. The motion sensor senses movement of the device. The microcontroller records the sensed movement upon receiving the pressure signals, and processes the recorded movement to obtain track signals of handwritten information when the duration of not receiving the pressure signals exceeds a predetermined time interval. The track signals of handwritten information are then transmitted to an external electronic device communicating with the device to become handwriting shown on a display of the external electronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.