Calibrating digital pens

Details Calibrating digital pens Calibrating digital pens

2005-07-22

2010-02-02

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Stylus

C345S156000, C345S166000

Reexamination Certificate

active

07656396

ABSTRACT:
A method of calibrating a digital pen (100) comprises the steps of:i) acquiring calibration data indicative of parameters indicative of an offset between a nib (108) of the pen (100) and a field of view (124) of a camera (114) whilst the pen is in use; andii) using the calibration data to compensate for the offset in subsequently acquired pen usage data.A digital pen, digital paper and software for calibrating a digital pen and a network comprising a digital pen are also disclosed.

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patent: 2390216 (2003-12-01), None
patent: WO 99/32958 (1999-07-01), None

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