The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2000
Filed:
Jun. 25, 1998
Katsuharu Nagai, Nara, JP;
Hideyuki Hiro, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
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.