Coordinate input apparatus, its control method, and program

Details Coordinate input apparatus, its control method, and program Coordinate input apparatus, its control method, and program

2005-03-09

2008-10-28

Shankar, Vijay (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S175000, C345S176000, C178S018010, C178S018040

Reexamination Certificate

active

07443387

ABSTRACT:
A signal change range, which is generated due to a pointing operation of a pointer on a coordinate input region, with respect to an initial detection signal distribution of a detection unit in an initial state in which no pointing operation is made on the coordinate input region, is specified. End portion information of the specified signal change range is detected. Coordinates of the pointed position of the pointer are calculated using at least one of a plurality of pieces of detected end portion information.

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