JPS63171833U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the outline of this invention, Fig. 2 is a block diagram showing an embodiment of this invention, Fig. 3 is a flowchart explaining the operating status of the device, and Fig. 4 is an absolute diagram of the position correction. FIG. 4A is an explanatory diagram showing the relationship between position and detected voltage; FIG. 4A shows the positional relationship on the indicating surface, and FIG. 4B shows the potential distribution corresponding to each point in FIG. 4A. 1... Coordinate input section, 2... Data reading section, 3...
...A/D conversion section, 4... Arithmetic processing section, 5... Operation section, 40... Memory.

Claims (1)

[Claims for Utility Model Registration] Coordinate input means; input position detection means for generating a signal corresponding to the coordinate position specified by the coordinate input means; and a plurality of reference points set in advance on the coordinate input means. A storage means for storing a signal generated from the input position detection means in correspondence with an absolute position, and a detected value from the input position detection means corresponding to an input point on the coordinate input means and a stored value in the storage means. A coordinate input device comprising a comparison and selection means for comparing and selecting a reference point at a position surrounding an input point, and a calculation means for calculating an absolute position of the input point based on a stored value of the selected reference point. The coordinate input means includes a pair of sheet resistors facing each other, and the input position detection means applies a voltage to the sheet resistors and extracts the partial pressure value at the input point as position data. Range 1
Coordinate input device as described in section.