Title:
表示面上の位置を求める方法及び対話型ディスプレイシステム
Document Type and Number:
Japanese Patent JP2007510966
Kind Code:
A
Abstract:
An interactive display system includes a pixel-based display surface and a light pen. A sequence of patterns is projected onto the display surface. The sequence of patterns has a unique sequence of light intensities for each location of the display surface. Intensities of light at an arbitrary location are sensed by the light pen while projecting the sequence of patterns. The intensities of light are decoded to determine coordinates of the arbitrary location.
Inventors:
Diets, Paul H
Lee, Darren El
Lasker, Ramesh
Lee, Johnny Chan
Lee, Darren El
Lasker, Ramesh
Lee, Johnny Chan
Application Number:
JP2006519005A
Publication Date:
April 26, 2007
Filing Date:
November 02, 2004
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G06F3/042; G01B11/00; G06F3/00; G06F3/033; G06K9/00; G09G5/00
Domestic Patent References:
| JP2003233460A | 2003-08-22 | |||
| JP2003091366A | 2003-03-28 | |||
| JPS63192169A | 1988-08-09 | |||
| JPH06506080A | 1994-07-07 |
Foreign References:
| US5227622A | 1993-07-13 | |||
| WO2003017076A1 | 2003-02-27 |
Attorney, Agent or Firm:
Michiteru Soga
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order