Method and apparatus for selecting information in multi-dimensional space
First Claim
1. A method of selecting information in a multi-dimensional space, the method comprising the steps of:
- (a) sensing the motion of a user for information selection;
(b) determining, using the amount of the sensed motion, whether the sensed motion is an effective motion of the intended information selection and returning to step (a) if it is determined that the motion is not the effective motion;
(c) determining whether the amount of the sensed motion exceeds a predetermined amount after step (a) and going to step (b) if it is determined that the amount of the motion does not exceed the predetermined amount;
(d) if it is determined that the motion is the effective motion in step (b), determining the information selected by the effective motion as effective information;
wherein step (b) comprises the sub-steps of;
(b1) extracting as a feature amount a portion having a change in the size of the sensing result;
(b2) determining whether the feature amount is at least of a predetermined threshold and turning to step (a) if it is determined that the feature amount is less than the predetermined threshold; and
(b3) if it is determined that the feature amount is at least of the predetermined threshold, determining that the motion is the effective motion and going to step (d).
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Accused Products
Abstract
Method and apparatus for selecting information in a multi-dimensional space are provided. The method includes the steps of sensing the motion of a user intending to select information, and determining whether the sensed motion is an effective motion intended for information selection and returning to the sensing step if it is determined that the motion is not the effective one. Accordingly, difficulty in setting a predetermined threshold to a single value can be overcome. In addition, even a very slight motion can be accurately detected without being influenced by gravity and offsets. Moreover, it can be accurately determined whether a user'"'"'s two- or three-dimensional motion is an effective motion for selecting information and which motion unit among at least two motion units has generated the effective motion, so that a high correct recognition rate for information and high reliability can be achieved, and a user is allowed to easily select information.
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Citations
54 Claims
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1. A method of selecting information in a multi-dimensional space, the method comprising the steps of:
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(a) sensing the motion of a user for information selection; (b) determining, using the amount of the sensed motion, whether the sensed motion is an effective motion of the intended information selection and returning to step (a) if it is determined that the motion is not the effective motion; (c) determining whether the amount of the sensed motion exceeds a predetermined amount after step (a) and going to step (b) if it is determined that the amount of the motion does not exceed the predetermined amount; (d) if it is determined that the motion is the effective motion in step (b), determining the information selected by the effective motion as effective information; wherein step (b) comprises the sub-steps of; (b1) extracting as a feature amount a portion having a change in the size of the sensing result; (b2) determining whether the feature amount is at least of a predetermined threshold and turning to step (a) if it is determined that the feature amount is less than the predetermined threshold; and (b3) if it is determined that the feature amount is at least of the predetermined threshold, determining that the motion is the effective motion and going to step (d). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An apparatus for selecting information in a multi-dimensional space, the apparatus comprising:
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at least one motion unit moved by a user intending to select information; at least one sensing unit for sensing the motion of the motion unit and outputting the result of sensing; at least one effective signal detection unit for checking whether the motion of the motion unit is an effective motion intending to select the information based on the result of sensing and outputting the result of checking as an effective signal; a motion amount detection unit for detecting the amount of the motion from the result of sensing; a first comparator for comparing the amount of the motion received from the motion amount detection unit with a predetermined amount and outputting the result of comparison, wherein the effective signal detection unit checks whether the motion of the motion unit is the effective motion in response to the result of comparison performed the first comparator; an effective information determination unit for determining information selected by the motion as effective information in response to the effective signal received from the effective signal detection unit; wherein the effective signal detection unit comprises; a feature amount detector for extracting as a feature amount a portion having a change in the size of the sensing result input from the sensing unit and outputting the extracted feature amount; a second comparator for comparing the feature amount received from the feature amount detector with a predetermined threshold and outputting the result of comparison; and an effective signal generator for generating the effective signal in response to the result of comparison received from the second comparator, and wherein the sensing unit senses the motion of the motion unit in response to the result of comparison received from the second comparator. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification