Method and System for Alternative Absolute Profile Determination
Granted: November 19, 2020
Application Number:
20200363951
The invention relates to a processing system. The processing system includes a sensor module performing a first measurement to obtain a combination signal using a first sensor electrode and a second sensor electrode. The first electrode is driven using a first modulated signal with a first driving voltage amplitude and simultaneously the second electrode is driven using a second modulated signal with a second driving voltage amplitude greater than the first driving voltage amplitude,…
HAPTIC TACTILE FEEDBACK WITH BUCKLING MECHANISM
Granted: October 8, 2020
Application Number:
20200319712
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…
Integrated Circuit Device and Electronic Device
Granted: September 3, 2020
Application Number:
20200279828
An integrated circuit device comprises: a resin film that is flexible; a plurality of traces bonded on a surface of the resin film and arrayed in a specific direction; an IC chip bonded on the surface of the resin film, located offset to the traces in a direction perpendicular to the specific direction, and connected to the traces; and a protection pattern formed on the surface of the resin film, located in the specific direction with respect to a disposition region in which the IC chip…
Display Driver
Granted: September 3, 2020
Application Number:
20200279542
A display driver is disclosed. The display driver includes: a memory configured to store control points defining a curve associated with a display panel; and shape calculation circuitry configured to: determine, based on the control points, a first intersection point of the curve and a width of a first line associated with the display panel; and modify image data of an image based on the first intersection point.
Compensation Technology for Display Panel
Granted: September 3, 2020
Application Number:
20200279519
A display driver comprises: digital gamma circuitry configured to generate a voltage data based on an image data for a pixel of interest; compensating circuitry configured to calculate a total current of the display panel; and correction circuitry. The correction circuitry is configured to correct the voltage data, based on the calculated total current.
SYSTEM AND METHOD FOR SUBPIXEL RENDERING AND DISPLAY DRIVER
Granted: August 27, 2020
Application Number:
20200273395
A system and method for rendering subpixels comprising performing an eight-color halftoning process on the second image data to generate third image data which describe a grayscale value of each of an R subpixel, a G subpixel and a B subpixel of each pixel with one bit, generating the third image data by performing a dithering process on the second image data using a dither value selected from elements of the dither table, when the third image data associated with a pixel of interest of…
Transcapacitive and Absolute Capacitive Sensing Profiles
Granted: July 23, 2020
Application Number:
20200233531
A processing system includes a sensor module configured to receive first and second signals from first and second sensor electrodes, respectively, and generate a combination signal. The processing system further includes a determination module configured to determine, using the first sensor electrode, an absolute capacitive coupling to an input object; determine, using the first and second sensor electrodes, a transcapacitive coupling; determine a ratio of the absolute to transcapacitive…
SENSOR PATTERNING WITH REDUCED TRACE VISIBILITY FOR CAPACITANCE SENSING
Granted: May 14, 2020
Application Number:
20200150792
An input device includes a first electrode layer including electrodes, a second electrode layer including electrodes, an insulating layer disposed between the first and the second electrode layers, and capacitive sensing elements organized in rows and columns. Each of the capacitive sensing elements is formed by one of the electrodes in the first electrode layer and one of the electrodes in the second electrode layer. A set of the capacitive sensing elements organized in adjacent rows…
THREE LAYER FORCE PAD
Granted: May 14, 2020
Application Number:
20200154560
A force pad sensor includes a face sheet including a force sensing resister, and a printed circuit board assembly. The printed circuit board assembly includes a proximity sensor layer including a proximity receiver electrode and a proximity transmitter electrode, and a force sensor layer including a force receiver electrode and a force transmitter electrode. The force receiver electrode and the FSR intersect a same vertical plane, the vertical plane being perpendicular to the face sheet.
METHOD AND SYSTEM FOR MEASURING A PHASE BASELINE ESTIMATE OF AN INPUT DEVICE
Granted: May 14, 2020
Application Number:
20200150811
An input device may include various sensor electrodes that define various sensor pixels. The input device may further include a processing system coupled to the sensor electrodes. The processing system may obtain a first resulting signal and a second resulting signal from the sensor electrodes. The processing system may determine, using the first resulting signal, an in-phase estimate of a phase delay at a sensor pixel among the sensor pixels. The processing system may determine, using…
SIGMA-DELTA CONFIGURATIONS FOR CAPACITANCE SENSING
Granted: May 7, 2020
Application Number:
20200141989
An input device includes a clocked comparator configured to actively drive a capacitive sensor electrode at a signal input of the clocked comparator with a first periodic reference voltage, and provide a digital representation of a sensing current resulting from driving the capacitive sensor electrode with the first periodic reference signal. The clocked comparator produces the digital representation of the sensing current based on a comparison of the signal input of the clocked…
BASELINE UPDATE FOR INPUT OBJECT DETECTION
Granted: April 30, 2020
Application Number:
20200133412
Baseline update for input object detection includes determining raw measurements from resulting signals acquired for a sensing region, obtaining a masked region of the sensing region based on the raw measurements, and generating a baseline update value using a subset of the raw measurements corresponding to an unmasked region. A baseline value of the masked region is updated using the baseline update value to obtain an updated baseline. A location of an input object is detected using the…
DEVICE AND METHOD FOR COMPENSATION OF POWER SOURCE VOLTAGE DROP IN DISPLAY PANEL
Granted: April 9, 2020
Application Number:
20200111423
A display driver comprises image processing circuitry, compensation circuitry, voltage data generator circuitry, and drive circuitry. The image processing circuitry is configured to generate a first voltage data based on an image data corresponding to an image to be displayed on a display panel. The compensation circuitry is configured to generate correction values for pixels of the display panel, based on a total current consumed in the pixels of the display panel and positions of the…
Method and System For Securing In-Vehicle Ethernet Links
Granted: March 19, 2020
Application Number:
20200092113
A method and system for securing in-vehicle ethernet links are disclosed. According to one embodiment, a method comprises receiving from an authenticator, via an insecure channel, a public key of the authenticator, a random number, and a challenge. A private key of the peer that was supplied to the peer is accessed from local storage at the peer. A state machine computes a session key for the peer, based on the random number, the public key of the authenticator, and the private key of…
ENGINEERING DISPLACEMENT RESPONSE THROUGH ELECTRODE SHAPE
Granted: December 26, 2019
Application Number:
20190391684
A method includes obtaining a capacitive function of ground plane displacement and gap distance, and optimizing, using the capacitive function, an optimization function to obtain multiple slice lengths. The slice lengths correspond to multiple gap distances between a first sensor electrode and a second sensor electrode. The method further includes defining a sensor electrode shape using slice lengths and gap distances, defining a sensor electrode pattern based on the sensor electrode…
SHORT LATENCY FINGERPRINT SENSING
Granted: December 12, 2019
Application Number:
20190377924
An input device includes sensing pixels, each sensing pixel including a photodiode, and a gate driver circuit controlling operation of the sensing pixels. The gate driver circuit includes a set of cascaded gate driver units. Each of the cascaded gate driver units is associated with a subset of the sensing pixels, controlling an operation of the subset of the sensing pixels. The set of cascaded gate driver units output, during a reset phase of the input device, a global reset gate control…
USING ELECTRICAL RESISTANCE TO ESTIMATE FORCE ON AN ELECTRODE DURING TEMPERATURE CHANGES
Granted: November 7, 2019
Application Number:
20190339313
A processing system including processing circuitry and sensor circuitry configured to obtain first resistance measurements of a plurality of sensor electrodes that compose a surface of an input device. The processing circuitry measures, in a first time interval, first values of electrical resistances of the electrodes. The processing circuitry calculates, from the first values, a first rate of change in the resistances, and measures, in a subsequent second time interval, second values of…
MITIGATING ELECTROMAGNETIC EMISSIONS FROM SENSOR ELECTRODES
Granted: September 12, 2019
Application Number:
20190278396
An input device is disclosed. The input device includes: multiple sensor electrodes; and a processing system configured to: modulate a first sensor electrode of the multiple sensor electrodes with a guard signal; and mitigate electromagnetic emissions resulting from modulating the first sensor electrode with the guard signal by modulating a circuit element with an inverted version of the guard signal.
IMPEDANCE RATIO-BASED CURRENT CONVEYOR
Granted: April 11, 2019
Application Number:
20190107917
An input device associated with a sensing region is disclosed. The input device includes: a first sensor electrode associated with the sensing region and configured to propagate a resulting signal; an first auxiliary component configured to generate an output using a scaled signal; and a first impedance ratio-based current conveyor coupled to the first sensor electrode and including: a staging circuit configured to generate an input signal using the resulting signal and a ratio of a…
METHOD AND SYSTEM FOR SCANNING MATRIX ELECTRODE SUB-REGIONS
Granted: March 21, 2019
Application Number:
20190087030
A method of capacitive sensing may include performing, using the matrix electrode array, a transcapacitive scan to detect an input object in a sensing region of the input device. The method may further include determining, using the transcapacitive scan, positional information regarding a location of the input object in the sensing region. The method may further include determining, using the positional information, a sub-region of the matrix electrode array. The method may further…
