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Patent Searching and Data


Title:
ELECTRONIC PEN WITH INK ON/OFF FUNCTION AND PAPER TOUCH SENSING
Document Type and Number:
WIPO Patent Application WO2001061636
Kind Code:
A3
Abstract:
A method and system for electonic entry of information uses an electronic reading device that includes an optical detector for detecting a portion of an address pattern on a specially formatted surface that is adjacent to the electonic reading device. The address pattern is designed such that an exact position of the electronic reading device with respect to the specially formatted surface can be determined by detecting only a small portion of the overall address pattern. The electronic reading device can include a sensor for detecting contact between a tip of the electronic reading device and the specially formatted surface. In addition, a processor in the electonic reading device receives the detected positional data at least when the sensor detects contact between the tip of the electonic reading device and the specially formatted surface. In addition or as an alternative, the electronic reading device can include a writing means that can be selectively activated and deactivated, wherein positions are detected regardless of whether the writing means is in an activated or deactivated mode.

Inventors:
RYDBECK NILS (US)
Application Number:
PCT/EP2001/001404
Publication Date:
January 24, 2002
Filing Date:
February 09, 2001
Export Citation:
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Assignee:
ERICSSON TELEFON AB L M (SE)
RYDBECK NILS (US)
International Classes:
B41J2/315; B41J3/36; B41J29/393; G06F3/00; G06F3/01; G06F3/03; G06F3/0354; G06F3/038; G06F9/46; G06F17/30; G06K15/02; H04N1/00; H04N1/047; H04Q7/22; H04N1/107; (IPC1-7): G06K11/08
Domestic Patent References:
WO1994010652A11994-05-11
Foreign References:
US5477012A1995-12-19
GB2306669A1997-05-07
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