| 摘要 |
In a case where a touch position is a peripheral portion, when spatial characteristics which correspond to an area and a length of a touch region exceed a first condition corresponding to a predetermined area and length, it is determined that the touch region is caused by a palm. When the spatial characteristics do not exceed the first condition, it is determined that the touch region is caused by a finger. In a case where a touch position is a central portion, when the spatial characteristics exceed a second condition corresponding to an area and a length that are larger than those of the first condition, it is determined that the touch region is caused by a palm. When the spatial characteristics do not exceed the second condition, it is determined that the touch region is caused by a finger. |
| 主权项 |
1. A touch pad comprising:
an operation surface; a detection unit configured to output a variable signal based on proximity of an object with respect to the operation surface; and a control unit configured to calculate a touch region and a touch position of the object on the basis of the variable signal, and to perform palm determination to determine whether the object is a finger or a palm based, on spatial characteristics of the touch region, the spatial characteristics corresponding to an area or a length of the touch region, wherein the control unit determines: when the touch position is in a peripheral portion of the operation surface, that the object is a palm if the spatial characteristics exceed a first condition, and that the object is a finger if the spatial characteristics do not exceed the first condition; and when the touch position is in a central portion of the operation surface, that the object is a palm if the spatial characteristics exceed a second condition greater than the first condition, and that the object is a finger if the spatial characteristics do not exceed the second condition, |
