Display interface with foveal compression
Granted: May 26, 2020
Patent Number:
10665209
A method of transporting foveal image data is disclosed. A host device receives image data from an image source and renders a full field-of-view (FFOV) image using the image data. The host device further identifies a foveal region of the FFOV image and renders a foveal image corresponding to the foveal region using the image data. More specifically, the foveal image may have a higher resolution than the foveal region of the FFOV image. The host device may then transmit each of the foveal…
Adaptive bias circuit for power event detection comparator
Granted: May 19, 2020
Patent Number:
10659025
A system includes: a power supply; an adaptively biased power event detection comparator; and an adaptive bias circuit for the adaptively biased power event detection comparator. The adaptively biased power event detection comparator is configured to compare a first input corresponding to a voltage level of the power supply with a second input corresponding to a reference voltage. The adaptive bias circuit is configured to increase a bias current for the adaptively biased power event…
System and method for subpixel rendering and display driver
Granted: May 19, 2020
Patent Number:
10657873
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…
Method and device for display color adjustment
Granted: May 19, 2020
Patent Number:
10657870
Provided is a color adjustment method for a display apparatus. The color adjustment method includes: measuring first luminance coordinate data indicating a luminance and color coordinates of a color displayed on a display device when image data corresponding to a white point is supplied to a drive circuitry; measuring second luminance coordinate data indicating luminances and color coordinates of colors displayed on the display device when image data corresponding to the white color of…
Calculation of degree of similarity between two images
Granted: May 19, 2020
Patent Number:
10657412
An image processing apparatus includes: a first circuit which calculates values f(RPi), f(GPi) and f(BPi) by applying a function f(x) to an R grayscale value RPi, a G grayscale value GPi and a B grayscale value BPi of each pixel i of a first image; a second circuit which calculates values f(RQi), f(GQi) and f(BQi) by applying the function f(x) to an R grayscale value RQi, a G grayscale value GQi and a B grayscale value BQi of each pixel i of a second image; and a similarity calculation…
Finger detection with auto-baseline tracking
Granted: May 19, 2020
Patent Number:
10657350
A device and system for automatically tracking a baseline input into a biometric sensor is provided. The device and system include a processing system with an amplifier having an input terminal and an output terminal for producing an output signal based on the input signal received by the input terminal. The processing system further includes at least one signal conditioning element coupled to the input terminal of the amplifier and configured to condition a compensation signal, and the…
Sensor device scanning techniques to determine fast and/or slow motions
Granted: May 19, 2020
Patent Number:
10656827
A method for performing navigation (NAV) operations using a sensor device comprising a plurality of transmitter electrodes includes: receiving, at an input sensing region of the sensor device, an input object; scanning, by the sensor device, the input object, wherein the scanning comprises driving a first subset of transmitter electrodes for low-resolution scanning and driving a second subset of transmitter electrodes for high-resolution scanning; and determining, by the sensor device,…
Single layer sensor array scan
Granted: May 12, 2020
Patent Number:
10649600
A method of performing a scan of a sensor array is disclosed, as well as an associated processing system and input device. The sensor array comprises a plurality of sensor electrodes in a single layer. A plurality of routing traces is arranged in the single layer. The method comprises, for each sensor electrode of the plurality of sensor electrodes, acquiring, during a first period, an absolute capacitive measurement for the sensor electrode. The method further comprises, for each…
Drive control device for a display having display elements and touch detection electrodes
Granted: May 5, 2020
Patent Number:
10642405
The drive control device includes a display control part and a touch control part. The display control part includes a control circuit operable to control first and second frame modes, and a clock pulse generator operable to produce a display line clock signal in synchronization with a display line switching cycle. The control circuit changes display and non-display drive terms in start timing on an individual display frame period basis in the first frame mode. In the second frame mode,…
Display driver, display device and method of operating display driver
Granted: May 5, 2020
Patent Number:
10643515
A display driver includes: a memory comprising a plurality of memory regions each configured to store image data for one line of an image displayed in a frame; and control circuitry configured to adjust a number of in-use memory regions of the plurality of memory regions used to store the image data. The control circuitry is further configured to control the memory so that image data for respective lines of the image are cyclically stored in the in-use memory regions in a fixed order.
Method and system for detecting and isolating intermittence in multi-circuit connectivity elements
Granted: May 5, 2020
Patent Number:
10641826
Embodiments are directed to identifying intermittent faults in a unit under test (UUT), and to mapping interconnections between connection points in a UUT. In one scenario, a testing apparatus includes an interface for electrically attaching the UUT to a testing module and an input circuit for supplying an individual stimulus signal to each unpowered connection point in the UUT. The testing apparatus also includes an active intermittence detecting circuit electronically connected to each…
Device and method for image correction
Granted: April 28, 2020
Patent Number:
10636365
A display driver comprises correction circuitry configured to correct a first image data for a first line, based on a difference between a first current and a second current. The first current is for displaying the first line and the second current is for displaying a second line after the first line is displayed.
Calibration of multiple analog front-ends
Granted: April 28, 2020
Patent Number:
10635236
Methods and associated processing systems are disclosed for acquiring gain mismatch values and offset mismatch values corresponding to a plurality of analog-to-digital converters (ADCs). One method comprises coupling receiver circuitry of a processing system with a capacitive sensor comprising a plurality of sensor electrodes, the receiver circuitry comprising a plurality of ADCs, each ADC of the plurality of ADCs coupled with one or more respective sensor electrodes of the plurality of…
Method and system for providing haptic feedback using an input device
Granted: April 28, 2020
Patent Number:
10635175
The invention relates to a haptic feedback system. The haptic feedback system includes a mounting frame configured to interface with an assembly chassis, and a mounting plate configured to support a user input device that provides a haptic feedback to a user. The mounting plate is slidably mounted on the mounting frame. The haptic feedback system further includes a guide disposed on the mounting plate, two opposing lever arms that are pivotably mounted on the mounting frame, and an…
Device and method for detecting signal state transition
Granted: April 21, 2020
Patent Number:
10630295
Semiconductor circuitry comprises a plurality of signal transition detectors and dynamic OR circuitry. The plurality of signal transition detectors are configured to respectively output detection signals, each of the detection signals being based on a transition of at least one of a plurality of signals. The dynamic OR circuitry is configured to output a recovered clock signal based on a logical sum of the detection signals.
Active avoidance of display noise in simultaneous touch and display
Granted: April 21, 2020
Patent Number:
10627957
Embodiments described herein include a method for avoiding display noise in a capacitive touch sensing device that includes sensing a touch input in a sensing region of an input device at a first touch sensing frequency. The method also includes analyzing incoming display data for display data noise at the first touch sensing frequency and at a second touch sensing frequency. If the display data noise at the first touch sensing frequency is higher than a threshold, touch sensing…
Method and system for scanning matrix electrode sub-regions
Granted: April 14, 2020
Patent Number:
10620759
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…
Dynamic self-capacitive measurement acquisition
Granted: April 7, 2020
Patent Number:
10613682
Sensor circuitry is configured to perform, for a sensing frame, mutual capacitive sensing to obtain mutual capacitive measurements, and perform, for the sensing frame, first self-capacitive sensing to obtain first self-capacitive measurements, and perform second self-capacitive sensing to obtain a second self-capacitive measurements. Processing circuitry is connected to the sensor circuitry and is configured to detect an inconsistency between the mutual capacitive measurements and the…
Two channel headset-based own voice enhancement
Granted: April 7, 2020
Patent Number:
10614788
Systems and methods for enhancing a headset user's own voice include an outside microphone, an inside microphone, audio input components operable to receive a plurality of time-domain microphone signals, including an outside microphone signal from the outside microphone and an inside microphone signal from the inside microphone, a subband decomposition module operable to transform the time-domain microphone signals to frequency domain subband signals, a voice activity detector operable…
Device and method for driving display panel in response to image data
Granted: April 7, 2020
Patent Number:
10614747
A display driver includes: a receiver configured to receive image data of each line of a display panel from an external device; a line latch circuit having a line latch configured to latch the image data of each line received by the receiver in response to a strobe signal; a driving circuit section which drives the display panel in response to the image data latched by the line latch; and a timing controller configured to generate the strobe signal. The receiver is configured to detect…
