SWITCHABLE AREA ENHANCEMENT FOR FLEXIBLE CAPACITIVE SENSING
Granted: February 26, 2015
Application Number:
20150054752
Embodiments of the invention generally provide an input device having a plurality of sensor electrodes that can be configured to be scanned in a first direction or a second direction. The input device includes a set of sensor electrodes and first and second sets of buses. The first buses are oriented in a first direction and the second buses are oriented in a second direction. The input device also includes a set of switching elements that are each configured to couple one of the sensor…
CHARGE DISTRIBUTION
Granted: February 19, 2015
Application Number:
20150049060
A processing system for an input device includes a receiver module and a charge distributor. The receiver module includes a first charge integrator coupled to a first sensor electrode and configured to integrate a charge on the first sensor electrode. The charge distributor includes a current conveyor and a plurality of output stages coupled to the current conveyor, wherein a first output stage of the plurality of output stages comprises a plurality of current mirrors and is configured…
CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN
Granted: February 12, 2015
Application Number:
20150042600
An electrode matrix that is used for capacitive sensing may be integrated into a display panel of an input device. In one embodiment, source drivers may be mounted on the display panel which drive the display signals and capacitive sensing signals into the display panel. In one embodiment, the capacitive sensing signals may be routed on traces or lines that are interleaved on the same layer as the source lines used for setting a voltage on the pixels in the display panel during display…
CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN
Granted: February 12, 2015
Application Number:
20150042599
An electrode matrix that is used for capacitive sensing may be integrated into a display panel of an input device. In one embodiment, source drivers may be mounted on the display panel which drive the display signals and capacitive sensing signals into the display panel. In one embodiment, the capacitive sensing signals may be routed on wires or lines that are interleaved on the same layer as the source lines used for setting a voltage on the pixels in the display panel during display…
FACE DETECTION WITH TRANSCAPACITIVE SENSING
Granted: January 29, 2015
Application Number:
20150029128
A processing system configured to detect large objects includes a sensor module with sensor circuitry coupled to transmitter electrodes and receiver electrodes, and configured to transmit transmitter signals with the transmitter electrode and receive resulting signals with the receiver electrodes, the resulting signals including effects corresponding to transmitter signals. The processing system further includes a determination module configured to determine a transition condition is…
UTILIZING CHIP-ON-GLASS TECHNOLOGY TO JUMPER ROUTING TRACES
Granted: January 22, 2015
Application Number:
20150022989
A chip-on-glass device comprises a chip-on-glass substrate, a metal layer, and a plurality of chip-on-glass connection bumps. The metal layer comprises a plurality of passive jumper routing traces. The plurality of chip-on-glass connection humps is coupled with passive jumper routing traces of the plurality of passive jumper routing traces.
HYBRID CAPACITIVE IMAGE DETERMINATION AND USE
Granted: January 15, 2015
Application Number:
20150015528
In a method of determining a hybrid capacitive image a transcapacitive image, a first absolute capacitive profile, and a second absolute capacitive profile are acquired with a plurality of sensor electrodes. An absolute capacitive image is determined as a function of the first absolute capacitive profile and the second absolute capacitive profile. A hybrid capacitive image is determined as a function of the absolute capacitive image and the transcapacitive image.
DISPLAY DEVICE HAVING AN INTEGRATED SENSING DEVICE WITH IMPROVED PROXIMITY SENSING
Granted: January 8, 2015
Application Number:
20150009171
Embodiments described herein include a method and apparatus for capacitive sensing in input devices integrated with a display device. In one embodiment, a processing system for a display device comprising an integrated capacitive sensing device is provided that includes a display driver module, a transmitter module, and a receiver module. The display driver and transmitter modules are configured to operate in a display update mode and a sleep mode. The receiver module is configured to,…
REDUCING DISPLAY ARTIFACTS WHEN RESUMING DISPLAY UPDATING IN AN INTEGRATED INPUT DEVICE
Granted: December 18, 2014
Application Number:
20140368462
Embodiments of the present invention generally provide a display line selection system. The display line selection system includes a first register element configured to select a first gate electrode to update a first display line during a first display update period and transfer charge to a second register element during the first display update period. The second register element is configured to select a second gate electrode to update a second display line during a second display…
NON-LINEAR FEEDBACK CAPACITANCE SENSING
Granted: November 27, 2014
Application Number:
20140347310
A processing system for an input device includes a comparator, a digital-to-analog converter (DAC), and a feedback path coupling the DAC to the comparator. The comparator generates a first comparison signal associated with a resulting signal and a first output signal of the DAC; and generates a second comparison signal associated with the resulting signal and a second output signal of the DAC. The processing system also includes a control module and a determination module. The control…
CHARGE DISTRIBUTION
Granted: November 13, 2014
Application Number:
20140333368
A charge distributor comprises a charge generator configured to output a charge, a current conveyor, and a plurality of output stages. The current conveyor is configured to receive the charge from the charge generator as an input and to couple this charge to a plurality of output stages. A first output stage, of the plurality of output stages, comprises a plurality of current mirrors. The plurality of current mirrors is configured to mirror and scale the charge received from the current…
ADAPTIVE FREQUENCY COMPENSATION FOR HIGH SPEED LINEAR VOLTAGE REGULATOR
Granted: October 9, 2014
Application Number:
20140300332
In a linear voltage regulator, a first stage outputs an output signal. The first stage is configured with a first switchable bias current, and is configured to receive a feedback signal. A second stage provides a regulated voltage output. A decoupling capacitor is coupled to the regulated voltage output. A feedback circuit is coupled with the second stage and configured to generate the feedback signal. A frequency compensation circuit includes a second switchable bias current. The…
SYSTEM AND METHOD FOR PRE-TOUCH GESTURES IN SENSOR DEVICES
Granted: September 18, 2014
Application Number:
20140267061
A processing system for an input device is configured to communicate with a host system and comprises a sensor module and a determination module. The sensor module comprises sensor circuitry and is configured to transmit transmitter signals with a plurality of transmitter electrodes and receive resulting signals comprising effects corresponding to the transmitter signals. The determination module is configured to determine, based on the resulting signals and a touch threshold, first…
SYSTEM AND METHOD FOR A TRANSCAPACITIVE PROXIMITY SENSING DEVICE
Granted: September 18, 2014
Application Number:
20140267143
A processing system for a transcapacitive input device configured to detect input objects in a sensing region of the input device includes a transmitter module including transmitter circuitry, a receiver module, and a determination module. The transmitter module is configured to simultaneously transmit, using a plurality of transmitter electrodes, a plurality of transmitter signals according to a plurality of significantly non-orthogonal digital codes. At least two codes of the plurality…
PROXIMITY SENSING USING DRIVEN GROUND PLANE
Granted: September 18, 2014
Application Number:
20140267137
A method and apparatus for operating an input device having an array of capacitive sensor electrodes disposed on a substrate with a ground plane, and a proximity sensor electrode are disclosed herein. The input device includes a processing system configured to operate in an input mode and a proximity mode. When operating in the input mode, the processing system drives the ground plane to a grounding voltage and scans the array of capacitive sensor electrodes to detect input from an…
SHEAR FORCE DETECTION USING CAPACITIVE SENSORS
Granted: September 18, 2014
Application Number:
20140267134
An input device having a sensing region overlapping an input surface includes a first substrate, a second substrate physically coupled to the first substrate, and a sensor electrode disposed on the first substrate and configured to detect input objects in the sensing region. A first force sensor includes a first electrode disposed on the first substrate and a first conductive portion of the second substrate capacitively coupled with the first electrode. The first conductive portion is…
PROXIMITY SENSING
Granted: September 18, 2014
Application Number:
20140267131
A processing system for capacitance sensing includes a sensor module and a determination module. The sensor module includes sensor circuitry coupled to sensor electrodes, the sensor module configured to generate sensing signals received with the sensor electrodes. The determination module is connected to the sensor electrodes and configured to obtain, for a predetermined timeframe, a profile from the sensing signals, obtain, for the predetermined timeframe, a noise statistic, and…
DEVICE AND METHOD FOR LOCALIZED FORCE AND PROXIMITY SENSING
Granted: September 18, 2014
Application Number:
20140267128
Methods, systems and devices are described for operating an electronic system which includes a first plurality of sensor electrodes disposed in a first layer and configured to detect input objects at an input surface of the input device, the first plurality of sensor electrodes including a first subset of transmitter electrodes; a second plurality of sensor electrodes configured to detect a force imparted to the input surface and configured for capacitive coupling with the first subset…
SINGLE-LAYER CAPACITIVE SENSOR AND CAPACITIVE SENSING INPUT DEVICE
Granted: September 18, 2014
Application Number:
20140267127
A single-layer capacitive sensor comprises a user input region and a border region proximate to and outside of the user input region. The user input region includes a plurality of transmitter electrodes that are disposed within the user input region. The user input region also comprises a plurality of receiver electrodes disposed in a common stackup layer with the plurality of transmitter electrodes within the user input region such that the transmitter electrodes and the receiver…
SYSTEMS AND METHODS FOR IMAGE FILTERING IN SENSOR DEVICES
Granted: September 18, 2014
Application Number:
20140267080
A processing system for an input device includes a sensor module, a filter module, and a determination module. The sensor module is configured to drive a plurality of transmitter electrodes with transmitter signals; receive, with a plurality of receiver electrodes, resulting signals comprising effects corresponding to the transmitter signals; and produce a first sensor image based on the resulting signals. The filter module is configured to produce a transformed sensor image by applying…
