Patent application number | Description | Published |
20120075249 | PROXIMITY SENSING FOR CAPACITIVE TOUCH SENSORS - A method and apparatus for operating an input device having an array of capacitive sensor electrodes and a proximity sensor electrode are disclosed herein. The input device includes a processing system communicatively coupled to the array of capacitive sensor electrodes and the proximity sensor electrode and configured to operate in an input mode and a proximity mode. When operating in the input mode, the processing system scans the array of capacitive sensor electrodes to detect input from an object in an active region of the input device. When operating in the proximity mode, the processing system drives a sensing signal on at least one sensor electrode of the array of capacitive sensor electrodes and receives a resulting signal from the proximity sensor electrode. Based on the resulting signal, the processing system generates an indication of an object presence in a second sensing region from the resulting signal. | 03-29-2012 |
20120268143 | CAPACITIVE SENSING PATTERN - A capacitive input device includes a plurality of receiver sensor electrodes oriented substantially parallel to a first axis proximate to a sensing region of the capacitive input device. The capacitive sensing device also includes a plurality of transmitter sensor electrodes oriented substantially parallel to a second axis proximate to the sensing region and configured to be capacitively coupled with the plurality of receiver sensor electrodes. The at least one receiver sensor electrode of the plurality of receiver sensor electrodes is disposed in a configuration forming multiple crossings with a line that is parallel to the second axis, the multiple crossings occurring proximate to the sensing region. | 10-25-2012 |
20120327012 | CAPACITIVE SENSOR PATTERN - A capacitive sensor pattern comprises a first plurality of sensor electrode elements, a second plurality of sensor electrode elements, and a third plurality of sensor electrode elements. The first plurality of sensor electrode elements is disposed in a first layer above a substrate. The second plurality of sensor electrode elements is disposed above the substrate in an additional layer. At least one of the second plurality of sensor electrode elements is physically coupled with at least two of the first plurality of sensor electrode elements. The third plurality of sensor electrode elements is disposed above the substrate in the additional layer. At least one element of the third plurality is ohmically coupled to a single element of said first plurality. | 12-27-2012 |
20130173211 | SYSTEMS AND METHODS FOR DETECTING LOW GROUND MASS CONDITIONS IN SENSOR DEVICES - A processing system for an input device includes a sensor module and a determination module. The sensor module includes sensor circuitry and is configured to acquire a first plurality of measurements of change in capacitive coupling between each sensor electrode of a first set of sensor electrodes and a second set of sensor electrodes. The sensor module is further configured to acquire a second plurality of measurements of change in capacitive coupling between each sensor electrode of the second set of sensor electrodes and an input object. The determination module is configured to determine a first combined measurement based on the first plurality of measurements, determine a second combined measurement based on the second plurality of measurements, and determine positional information for the input object based on a low ground mass parameter. The low ground mass parameter is based on the first combined measurement and the second combined measurement. | 07-04-2013 |
20130181942 | SINGLE LAYER CAPACITIVE IMAGING SENSORS - Embodiments of the invention generally provide an input device that includes a plurality of sensing elements that are interconnected in desired way to acquire positional information of an input object, so that the acquired positional information can be used by other system components to control a display or other useful system components. One or more of the embodiments described herein, utilizes one or more of the techniques and sensor electrode array configuration disclosed herein to reduce or minimize the number of traces and/or electrodes required to sense the position of an input object within a sensing region of the input device. | 07-18-2013 |
20130181943 | SINGLE LAYER CAPACITIVE IMAGING SENSORS - Embodiments of the invention generally provide an input device that includes a plurality of sensing elements that are interconnected in desired way to acquire positional information of an input object, so that the acquired positional information can be used by other system components to control a display or other useful system components. One or more of the embodiments described herein, utilizes one or more of the techniques and sensor electrode array configuration disclosed herein to reduce or minimize the number of traces and/or electrodes required to sense the position of an input object within a sensing region of the input device. | 07-18-2013 |
20140132552 | SYSTEM AND METHOD FOR FINITE ELEMENT IMAGING SENSOR DEVICES - A processing system includes a transmitter module, a receiver module, and a determination module. The transmitter module is configured to drive a first contact, a second contact, and a third contact of a first transmitter electrode, wherein the first contact is disposed between the second contact and the third contact. This produces a first voltage gradient between the first contact and the second contact, and produces a second voltage gradient between the first contact and the third contact. The receiver module receives, with a first receiver electrode, a first resulting signal including effects of the first voltage gradient, and to receive, with a second receiver electrode, a second resulting signal comprising effects of the second voltage gradient. The determination module determines positional information for an input object located within a sensing region based on the first resulting signal and the second resulting signal. | 05-15-2014 |
20150261377 | COMBINED CAPACITIVE SENSING - A processing system comprises a sensor module and a determination module. The sensor module comprises sensing circuitry coupled to sensor electrodes of a sensor electrode pattern. The sensor module is configured to: drive a modulated signal onto a first sensor electrode of the sensor electrode pattern; receive first resulting signals from the first sensor electrode; and receive second resulting signals from a second sensor electrode of the sensor electrode pattern. The second resulting signals comprise effects corresponding to the modulated signal, and the first resulting signals and the second resulting signals are simultaneously received. The determination module configured to determine a change in capacitive coupling between an input object and the first sensor electrode based on the first resulting signals and a change in capacitive coupling between the first and second sensor electrodes based on the second resulting signals. | 09-17-2015 |