Patent ID: 6965377
Filing Date: 2005-11-15
Classification: G06F

Abstract:
1. A coordinate input apparatus comprising: a coordinate plate having a plurality of pieces of coded coordinate information composed of dots, each corresponding to an X-coordinate value, and having a plurality of pieces of coded coordinate information composed of dots, each corresponding to a Y-coordinate value, said plurality of pieces of coded coordinate information being formed at predetermined intervals on said coordinate plate, wherein the intervals between the pieces of coded coordinate information are wider than intervals between the dots in a piece of the coded coordinate information; input-indicating means for indicating a position of the coordinate plate to be input and for detecting the coordinate information in the vicinity of the position; and processing means for determining X-coordinate values and Y-coordinate values from the coordinate information detected by said input-indicating means and for determining the coordinate of the input position on the basis of the X-coordinate values and Y-coordinate values.