Handwriting input device
US6104388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Jun 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/373
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A handwriting input device, despite having a simple structure, achieves correct acquisition of handwritten information. This input device has a pen stem housed inside a pen body formed in the shape of a pen, with the tip of the pen stem left sticking out of an opening formed at one end. This input device further has a pen stem holder having a hemispherical projection formed in its middle portion, an omnidirectional pressure sensor having an actuator and an operation shaft formed integrally, a data processor for processing electric signals outputted from the sensor, and a connector for connecting the tail-end cap portion of the pen stem holder to the operation shaft of the sensor. Thus, this input device detects the force applied to the tip of the pen stem by sensing pressure; in addition, it also detects the up/down movement of the pen stem by sensing pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.