Patent ID: 8773398
Filing Date: 2014-07-08
Classification: B41J,G06F

Abstract:
1. A data input system comprising: electronic paper comprising a transparent display substrate on which a number of optically readable code patterns have been formed, the optically readable code patterns representing positional information on a display surface, a rear surface substrate opposing the display substrate, and coloring particles that are enclosed between the display substrate and the rear surface substrate and that are movable by applying an electric field or a magnetic field, the electronic paper displaying an image by motion of the coloring particles; and a stylus writing device comprising a writing head provided at the end of the stylus for writing an image by applying an electric field or a magnetic field to the electronic paper by contact with the electronic paper, and an optical reading device for optically reading the code patterns formed on the display surface where the end of the stylus contacts, the code patterns read by the optical reading device representing the positional information of the stylus writing device on the display surface, wherein the optically readable code pattern is a code pattern obtained by selectively arranging a plurality of a certain number of dots within blocks that are information units, each block contains a same number of said certain number of dots, and the transparent display substrate does not include a special dot pattern that indicates either: i) a boundary between blocks, or ii) a block direction within the optically readable code pattern.