Patent ID: 7075524
Filing Date: 2006-07-11
Classification: G06F

Abstract:
1. A coordinate input apparatus which detects position coordinates of a coordinate input pointing tool, comprising: calculation means for calculating position coordinates in a space defined by first to third axes of the coordinate input pointing tool; comparison means for comparing a value of the first axis of the coordinate values calculated by the calculation means with a predetermined value; determination means for determining whether the coordinate values of the second and third axes of the coordinate values calculated by the calculation means fall within a predetermined range; and output means for outputting the coordinate values calculated by the calculation means in a coordinate output form determined on the basis of a comparison result by the comparison means and a determination result by the determination means, wherein the coordinate output form includes at least an absolute coordinate output form in which the calculated coordinate values are directly output, and a relative coordinate output form in which differential values between the calculated coordinate values and predetermined coordinate values are output, wherein the predetermined coordinate values are first effective coordinate values during a continuous input period in which coordinate input is continuously executed, and the apparatus further comprises storage means for storing the first effective position coordinates calculated by said calculation means during the continuous input period as the predetermined coordinate values.