摘要:
The invention is a structure and method for creating areas of non-conducting or isolated conducting surfaces within an area of conducting surfaces such that the capacitance of said conducting surface is reduced relative to a proximate, essentially parallel, conducting surface.
摘要:
A method includes utilizing a plurality of electrodes of a capacitive touch-sensitive display to detect touches on the touch-sensitive display, concurrently driving a first group of the plurality of electrodes, and detecting an object spaced from the touch-sensitive display utilizing a second group of the plurality of electrodes while concurrently driving the first group of the plurality of electrodes.
摘要:
A repeated pattern of sensing elements can be used to indicate an unambiguous position along an axis in a sensing region. For example, different-sized sensing elements can be arranged in a repeating pattern, and the relative measures of their respective output signals can be used to identify a position in the sensing region.
摘要:
One type of capacitive sensing apparatus has a sensing element that includes a first portion and a second portion adjacent opposite edges of a sensing region. Signals from the first and second portions are combined. Another type of apparatus includes: a first sensing element including first and second portions; a second sensing element including third and fourth portions; and a third sensing element including fifth and sixth portions. The first, third and fifth portions form a first pattern, and the second, fourth and sixth portions form a second pattern. The patterns are bilaterally symmetrical about a median of a sensing region. In another type of apparatus, an electrical conductor coupled to a first sensing element passes through a gap in a second sensing element. An electrical conductor coupled to the second sensing element is dimensioned such that a capacitive coupling to the second sensing element is compensated for the gap.
摘要:
A method includes detecting a touch on a touch-sensitive display of an electronic device, determining a distance between a first filtered touch location established based on a first detected touch location at a first time, and a second detected touch location at a second time, filtering noise from the second detected touch location to determine a second filtered touch location, wherein the filtering is based on the distance.
摘要:
Patterns of sensor elements that can be used in capacitance sensing devices are described. A plurality of sensor elements extends in a radial direction from a shared center. A first subset of the sensor elements extend like spirals in a clockwise direction, and a second subset of the sensor elements extend like spirals in a counterclockwise direction.
摘要:
A touch-sensitive input device includes a first set of conductors and a second set of conductors. The first set of conductors include a first conductor including a plurality of first fingers extending from a first spine, and a second conductor including a plurality of second fingers extending from a second spine, wherein the first fingers are interleaved with the second fingers. The second set of conductors are separated from the first set of conductors by a dielectric material and include a third conductor including a plurality of third fingers extending from a third spine, and a fourth conductor including a plurality of fourth fingers extending from a fourth spine, wherein the third fingers are interleaved with the fourth fingers.
摘要:
The invention is a system for reducing finger-coupling capacitance of a touch-sensor panel such that finger-coupled noise signals do not overwhelm the sensing circuit and render the panel unable to detect the finger position.
摘要:
The structure disclosed reduces the number of bonding pads and interconnect traces in the opaque portion of a single-layer touch panel. By sharing and multiplexing the bonding pads in the opaque portion of panel, half as many pads are needed to provide the interconnection bases for the traces in the opaque portion of the panel that extend to the control electronics subsystem. Further, by connecting the ground plane structures that are adjacent to each TCO column electrode, all ground planes are made part of a common ground-plane electrode. That single common ground-plane electrode can be connected to the appropriate trace and control electronic subsystem using a single pad, rather than several individual ground-plane pads.
摘要:
A device includes a touch sensor, and at least one electrode spaced from touch sensor by an air gap, wherein a change in capacitance between the touch sensor and the electrode is utilized to determine a value related to a force imparted on the device.