Coordinate input apparatus, control method thereof, and program
First Claim
1. A coordinate input apparatus for detecting a plurality of point positions on a coordinate input region, comprising:
- a plurality of detection means for detecting pointing means on the coordinate input region;
specifying means for specifying a range where a detection signal from each of said plurality of detection means is changed; and
determination means for determining whether an input transition state exists when a first detection means of the plurality of detection means has detected two ranges and a second detection means of the plurality of detection means has detected one range.
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Abstract
A signal change range generated by a pointing operation of a pointer on a coordinate input region is specified in correspondence with the initial detection signal distribution of a detection unit in an initial state without pointing on the coordinate input region. Pieces of end information of the specified signal change range are detected. The validity of a detection state in the end information detection step is determined by using the plurality of pieces of detected end information. On the basis of the determination result, the coordinates of the point position of the pointer are calculated from the plurality of pieces of end information.
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Citations
16 Claims
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1. A coordinate input apparatus for detecting a plurality of point positions on a coordinate input region, comprising:
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a plurality of detection means for detecting pointing means on the coordinate input region; specifying means for specifying a range where a detection signal from each of said plurality of detection means is changed; and determination means for determining whether an input transition state exists when a first detection means of the plurality of detection means has detected two ranges and a second detection means of the plurality of detection means has detected one range. - View Dependent Claims (2, 3, 11)
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4. A coordinate input apparatus for detecting a plurality of point positions on a coordinate input region, comprising:
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a plurality of detection means for detecting pointing means on the coordinate input region; specifying means for specifying a range where a detection signal from each of said plurality of detection means is changed; and determination means for determining whether an input transition state exists when one of said plurality of detection means has detected the range, on a basis of whether or not a width of the range corresponds to a predetermined value. - View Dependent Claims (5, 6, 12)
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7. A control method of a coordinate input apparatus which includes a plurality of detection units to detect pointing means on a coordinate input region and to detect a point position on the coordinate input region, comprising:
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a specifying step of specifying a range where a detection signal from each of said plurality of detection units is changed; and a determination step of determining whether an input transition state exists when a first detection unit of the plurality of detection units has detected two ranges and a second detection unit of the plurality of detection units has detected one range. - View Dependent Claims (13)
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8. A control method of a coordinate input apparatus which includes a plurality of detection units to detect pointing means on a coordinate input region and to detect a point position on the coordinate input region, comprising:
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a specifying step of specifying a range where a detection signal from each of said plurality of detection units is changed; and a determination step of determining whether an input transition state exists when one of said plurality of detection means has detected the range, on a basis of whether or not a width of the range corresponds to a predetermined value. - View Dependent Claims (14)
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9. A computer-readable medium on which is stored a program which implements control of a coordinate input apparatus which includes a plurality of detection units to detect pointing means on a coordinate input region and to detect a point position on the coordinate input region, comprising:
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a program code for a specifying step of specifying a range where a detection signal from each of said plurality of detection units is changed; and a program code for a determination step of determining whether an input transition state exists when a first detection unit of the plurality of detection units has detected two ranges and a second detection unit of the plurality of detection units has detected one range. - View Dependent Claims (15)
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10. A computer-readable medium on which is stored a program which implements control of a coordinate input apparatus which includes a plurality of detection units to detect pointing means on a coordinate input region and to detect a point position on the coordinate input region, comprising:
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a program code for a specifying step of specifying a range where a detection signal from each of said plurality of detection units is changed; and a program code for a determination step of determining whether an input transition state exists when one of said plurality of detection means has detected the range, on a basis of whether or not a width of the range corresponds to a predetermined value. - View Dependent Claims (16)
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Specification