Title:
平らな筆記記入面からの情報を光学的に推定するための装置
Document Type and Number:
Japanese Patent JP2007524885
Kind Code:
A
Abstract:
The present invention relates to a jotting implement that infers hand-jotted information from viewing a jotting surface and environmental landmarks. The hand-jotted information is any information marked on the jotting surface as a result of writing, jotting, drawing, sketching or otherwise operating on the jotting surface as well as hand-generated information produced by moving the implement in the air with respect to the jotting surface. The jotting implement has a nib for jotting and an arrangement for determining when the nib is jotting on the jotting surface. Further, the implement has an optical unit for viewing an environmental landmark and the jotting surface. The implement has a processing unit for receiving optical data of the environmental landmark and the jotting surface from the optical unit and determining from the optical data the physical coordinates of the nib with respect to the jotting surface. The environmental landmark is preferably made up several beacons that emit electromagnetic radiation and are affixed to a host structure.
Inventors:
Karl, Stewart Earl
Application Number:
JP2006503827A
Publication Date:
August 30, 2007
Filing Date:
February 24, 2004
Export Citation:
Assignee:
ELECTRONIC SCRIPTING PRODUCTS, INC.
International Classes:
G06F3/042; G06F3/033; G06F3/041
Domestic Patent References:
| JPH08101739A | 1996-04-16 | |||
| JP2002244805A | 2002-08-30 |
Foreign References:
| WO2002052372A2 | 2002-07-04 | |||
| WO2002058029A2 | 2002-07-25 |
Attorney, Agent or Firm:
Yoichi Oshima