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:
Feb. 20, 2007
Filed:
Jun. 26, 2002
Björn Fermgård, Lund, SE;
Ola Strömberg, Staffanstorp, SE;
Björn Fermgård, Lund, SE;
Ola Strömberg, Staffanstorp, SE;
Anoto AB, Lund, SE;
Abstract
An electronic pen comprises a writing means () which extends into the interior of the pen, a guiding element () for the writing means (), a sensor () for recording images and an image processor () for calculating positions of the pen based on said images. The sensor () is part of an imaging detector unit (). The guiding element () and the detector unit () are arranged in a common mounting part () which is fixedly mounted in the interior of the pen. In such a pen, it is possible to minimize the tolerance chain between the components that convert a pen stroke on a base into a sequence of positions. This enables serial production of the pen with a small number of rejects.