Coordinate input apparatus and control method therefor

A coordinate input method comprising the steps of:

• determining in which one of a plurality of areas of a coordinate input surface a position is designated;
• selecting less than all of a plurality of coordinate detection means in response to the determination in said determining step;
• and
• calculating each coordinate of an input stoke comprised of a plurality of designated positions using the selected coordinate detection means,
• wherein the input stroke comprises the designated position and a position designated in one other of the plurality of areas.

A computer-readable memory medium storing computer-executable process steps, the steps comprising:

• a determining step to determine in which one of a plurality of areas of a coordinate input surface a position is designated;
• a selecting step to select less than all of a plurality of coordinate detection means in response to the determination in said determining step;
• and
• a calculating step to calculate each coordinate of an input stroke comprised of a plurality of designated positions using the selected coordinate detection means,
• wherein the input stroke comprises the designated position and a position designated in one other of the plurality of areas.