Abstract: Disclosed are techniques and systems for distinguishing between inadvertent contact and an intentional key press on a touch-sensitive input device, such as a keyboard or other like peripheral. In some embodiments, a system may include a first electrode disposed in a first plane, and a second electrode disposed in a second plane substantially parallel to the first plane. The system may also include one of a flexible dielectric material and an air gap spacing the first electrode from the second electrode; and a third electrode disposed in a third plane substantially parallel to the first plane. The third electrode may extend substantially parallel to the first electrode, and may be spaced from the first electrode by the one of the flexible dielectric material and the air gap.

Abstract: Disclosed are techniques and systems for distinguishing between inadvertent contact and an intentional key press on a touch-sensitive input device, such as a keyboard or other like peripheral. In some embodiments, a system may include a first electrode disposed in a first plane, and a second electrode disposed in a second plane substantially parallel to the first plane. The system may also include one of a flexible dielectric material and an air gap spacing the first electrode from the second electrode; and a third electrode disposed in a third plane substantially parallel to the first plane. The third electrode may extend substantially parallel to the first electrode, and may be spaced from the first electrode by the one of the flexible dielectric material and the air gap.