HAPTIC TACTILE FEEDBACK WITH BUCKLING MECHANISM
Granted: January 31, 2019
Application Number:
20190033971
A method may include obtaining, using a first set of resulting signals from various proximity sensor electrodes, positional information regarding a location of an input object in a sensing region. The method may include obtaining, using a second set of resulting signals from various force sensor electrodes, force information regarding an input force that is applied to an input surface. The method may include loading, using a loading actuator and in response to the positional information…
BIOMETRIC ENROLLMENT USING A DISPLAY
Granted: December 27, 2018
Application Number:
20180373917
A method, system, and non-transitory computer readable medium for in-display fingerprint enrollment that may include receiving an indication to begin a fingerprint enrollment process on an electronic device with an in-display fingerprint sensor; displaying a first fingerprint enrollment shape over the in-display fingerprint sensor; and receiving, in response to displaying the first fingerprint enrollment shape and via a first user interaction, a first portion of fingerprint data.…
INPUT OBJECT BASED INCREASE IN GROUND MASS STATE
Granted: December 20, 2018
Application Number:
20180364854
Increasing ground mass state of an input device is disclosed. Increasing the ground mass state includes driving sensor electrodes to acquire first measurements of a sensing region of the input device, and driving a first subset of the sensor electrodes while a second subset is coupled to device ground to acquire second measurements of a portion of the sensing region. Increasing the ground mass state further includes determining a location of an input object in the sensing region using…
ELECTRODE COMBINING FOR NOISE DETERMINATION
Granted: December 20, 2018
Application Number:
20180364833
Sensor electrodes are coupled, in a first configuration, to input channels of a processing system. The sensor electrodes are used to acquire a measurement of current. In a second configuration that is different from the first configuration, the sensor electrodes are coupled to the input channels. The sensor electrodes in the second configuration are used to acquire a capacitive resulting signal. Positional information is determined using the current measurement and the capacitive…
INTERFERENCE DETECTION
Granted: November 29, 2018
Application Number:
20180341364
An input device including: a first in-phase touch sensing block including: an analog mixer configured to mix a resulting signal associated with a capacitive sensor electrode with a local oscillator (LO) signal; an analog to digital converter (ADC) configured to convert an output of the analog mixer into a digital signal; and a first decimation filter configured to determine an in-phase component of an interference at a frequency of the LO signal based, at least in part, on the digital…
METHOD AND SYSTEM FOR FORCE SENSITIVE COMPONENTS IN A DISPLAY DEVICE
Granted: September 20, 2018
Application Number:
20180267660
A processing system includes a sensor module and a determination module. The sensor module is configured to perform a capacitive scan using electrodes disposed in a display device in a first area. The determination module is configured to determine, using the capacitive scan, a bending response of an input surface covering the first area and a second area. The bending response results from an input force being applied to the input surface in the second area. The determination module is…
ZERO-DIMENSIONAL BASELINE MANAGEMENT
Granted: July 19, 2018
Application Number:
20180203542
A processing system includes sensor circuitry configured to obtain capacitive sensing signals from sensor electrodes, the sensor electrodes having baseline values, such that each sensor electrode has a corresponding baseline value. The processing circuitry is configured to be connected to the sensor circuitry and configured to determine, for the corresponding baseline value of a sensor electrode, a spatial consistency metric value using the various baseline values, set a baseline…
CAPACITIVE SENSOR DEVICE
Granted: March 8, 2018
Application Number:
20180067155
A capacitive sensor device comprises a first sensor electrode, a second sensor electrode, and a processing system coupled to the first sensor electrode and the second sensor electrode. The processing system is configured to acquire a first capacitive measurement by emitting and receiving a first electrical signal with the first sensor electrode. The processing system is configured to acquire a second capacitive measurement by emitting and receiving a second electrical signal, wherein one…
SYSTEM AND METHOD FOR INPUT SENSING
Granted: January 18, 2018
Application Number:
20180018046
In a method of input sensing and exclusion, an input is detected within a sensing region of an input device. It is determined that the input is along an edge of the input device. It is then determined whether the input satisfies exclusion criteria. Responsive to satisfaction of the exclusion criteria, the input is excluded from consideration as valid input.
UPDATING PROGRAM CODE STORED IN AN EXTERNAL NON-VOLATILE MEMORY
Granted: January 4, 2018
Application Number:
20180004501
In a method of updating program code in an external non-volatile memory, updated program code is received at an Application Specific Integrated Circuitry (ASIC). The updated program code is received from a host device. The updated program code is stored in a volatile memory of the ASIC. The ASIC performs operations. The updated program code is copied from the volatile memory to a non-volatile memory while performing the operations. The non-volatile memory is located external to the ASIC.
LIKELIHOOD DETECTION OF PRESSING FINGER IN TWO-FINGER TOUCH
Granted: October 5, 2017
Application Number:
20170285796
A processing system for a force sensing device, including: sensor circuitry that receives resulting signals from force sensors; and processing circuitry that: determines a first location of a first input object and a second location of a second input object on a surface; determines force values for the force sensors based on the resulting signals; obtains a first plurality of expected force values for the force sensors based on the first location and a second plurality of expected force…
ACTIVE PEN SIGNAL DETECTION
Granted: October 5, 2017
Application Number:
20170285773
In a method of active pen signal detection, a signal is received from an active pen, wherein the active pen is configured for use with a capacitive sensing input device. At least one of downconverting and aliasing is performed on the signal to achieve a resulting signal. Presence of one of a plurality of possible resulting signal frequencies present in the resulting signal is detected. The detected resulting signal frequency is associated with a particular one of a plurality of possible…
DISPLAY NOISE SUBTRACTION VIA SUBSTANTIALLY ORTHOGONAL NOISE TEMPLATES
Granted: July 6, 2017
Application Number:
20170192604
In a method of determining noise templates for use in capacitive sensing, a plurality of changes of capacitance are acquired, which include noise components, from a plurality of sensor electrodes in a sample capacitive sensor. Each of a plurality of substantially orthogonal noise templates is determined based on the acquired plurality of changes in capacitance. Multiple substantially orthogonal noise templates are selected, from the plurality of substantially orthogonal noise templates,…
ELECTRONIC DEVICE KEYBOARD SPACEBAR WITH VISUAL FEEDBACK ASSOCIATED WITH LOCATION SENSING
Granted: July 6, 2017
Application Number:
20170192527
An input device includes a plurality of keys, where at least one key of the plurality of keys may include a first surface configured to contact a plurality of input objects, a sensing region of the first surface configured to sense the plurality of input objects, a capacitive sensor configured to determine positional information of the plurality of input objects on the first surface of the key, and a lighting element configured to provide visual feedback to a user interacting with the at…
VARIABLE TIME ANTI-ALIASING FILTER
Granted: March 30, 2017
Application Number:
20170090669
A processing system for a capacitive sensing input device comprises a charge integrator, a circuit element having a first resistance, and a first switch coupled with the circuit element. The first circuit element is disposed in series with an input of the charge integrator. The first switch is configured to alter the first resistance to a second resistance when selectively closed during at least a portion of an integration phase of the charge integrator. The second resistance is lower…
SENSOR ELECTRODE PATH ERROR DIAGNOSIS
Granted: February 16, 2017
Application Number:
20170045970
A processing system comprises a sensing module, a first internal diagnostic mechanism, and a determination module. The sensing module is configured to couple with a first sensor electrode path of a plurality of sensor electrode paths, wherein the sensing module is configured to drive the first sensor electrode path with a first signal. The first internal diagnostic mechanism configured to couple with a second sensor electrode path and configured to acquire a test signal output while the…
EFFICIENT HIGH VOLTAGE SQUARE WAVE GENERATOR
Granted: January 5, 2017
Application Number:
20170005646
This disclosure generally provides a system, active input device, and method for generating an amplified square wave signal based on an input signal. The method comprises generating a pulse signal based on the input signal, and driving a switching signal based on the pulse signal to control a first switch. A pulse width of the pulse signal is adaptively controlled using a control signal generated based on the amplified square wave signal. An output terminal of the first switch is coupled…
ELECTRODE COMBINING FOR NOISE DETERMINATION
Granted: December 29, 2016
Application Number:
20160378221
In a method of capacitive sensing, a first plurality of sensor electrodes of a sensor electrode pattern is coupled, in a first configuration, to input channels of a processing system. The sensor electrode pattern is associated with a sensing region. The first configuration of the first plurality sensor of electrodes is utilized to acquire a measurement of current. A noise environment is determined through analysis of the measurement of current. At least one subset of the first plurality…
CURRENT-MODE BANDGAP REFERENCE WITH PROPORTIONAL TO ABSOLUTE TEMPERATURE CURRENT AND ZERO TEMPERATURE COEFFICIENT CURRENT GENERATION
Granted: December 1, 2016
Application Number:
20160349786
In a current-mode bandgap reference integrated circuit: a bandgap voltage generator is configured to generate a bandgap voltage, a zero-temperature coefficient current generator configured to generate a zero-temperature coefficient current, and a proportional to absolute temperature current generator configured to generate a proportional to absolute temperature current. The integrated circuit includes a first pair of bipolar junction transistors (BJT) comprising a first BJT and a second…
INPUT SENSING AND EXCLUSION
Granted: September 15, 2016
Application Number:
20160266674
In a method of input sensing and exclusion, an input is detected within a sensing region of an input device. It is determined that the input is along an edge of the input device. It is then determined whether the input satisfies exclusion criteria. Responsive to satisfaction of the exclusion criteria, the input is excluded from consideration as valid input.
