Abstract: Disclosed is an input device, comprising a touch sensor and a processing system. The touch sensor includes a touch sensing region and a plurality of pixels in the touch sensing region. The processing system is coupled to the touch sensor and comprises circuitry configured to: determine that a touch has occurred on a touch sensor; for each pixel included in the touch, receive touch information from the touch sensor; for each pixel included in the touch, determine a pixel response value for the pixel; and, compute a touch-based metric based on one or more pixel response values, wherein a model is used to perform behavioral authentication based on the touch-based metric.

Abstract: A display driver chip includes interface circuitry, image data processing circuitry, and drive circuitry. The interface circuitry is configured to receive first frame image data for a first frame image. The image data processing circuitry includes a buffer memory configured to store at least part of the first frame image data. The image data processing circuitry is configured to supply, based on the at least part of the first frame image data stored in the buffer memory, first display data for a first display area of a plurality of display areas of a display panel having a zigzag pixel arrangement. The drive circuit is configured to drive a display element in the first display area based on the first display data.

Abstract: A voice-interaction device includes a plurality of input and output components configured to facilitate interaction between the voice-interaction device and a target user. The plurality of input and output components may include a microphone configured to sense sound and generate an audio input signal, a speaker configured to output an audio signal to the target user, and an input component configured to sense at least one non-audible interaction from the target user. A context controller monitors the plurality of input and output components and determines a current use context. A virtual assistant module facilitates voice communications between the voice-interaction device and the target user and configures one or more of the input and output components in response to the current use context. The current use context may include whisper detection, target user proximity, gaze direction tracking and other use contexts.

Abstract: An input-display device includes a display screen on a display substrate and capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen. The input-display device also includes a touch and display driver integration (TDDI) circuit on the display substrate, the TDDI circuit including a source driver circuit driving a subset of display pixels of the display screen based on a processed image signal, and an analog frontend for the capacitive sensing, interfacing with the capacitive sensing electrodes to obtain touch signals. The input-display device also includes an image processing circuit generating the processed image signal based on a received image signal and a display parameter, a touch processing circuit generating a touch output signal by processing the touch signals based on instructions of a touch firmware, and a memory physically separate from the display substrate, the memory storing the display parameter and the touch firmware.

Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.

Abstract: A display driver comprises drop amount calculation circuitry and digital gamma correction circuitry. The drop amount calculation circuitry is configured to calculate a drop amount of a power source voltage supplied to a display panel from a setting value. The digital gamma correction circuitry is configured to perform digital gamma correction on an input image data based on the drop amount.

Abstract: A method and system for securing CSI and DSI links using enhanced authentication and cloud tracking are disclosed. According to one embodiment, a method comprises receiving at the receiving device an encrypted information signal from the transmitting device. The encrypted information signal includes a unique identifier of the transmitting device. The method further comprises testing whether a whitelist at the receiving device includes the unique identifier of the transmitting device. The encrypted information signal is decrypted producing a retrieved information signal only if the whitelist includes the unique identifier of the transmitting device; and otherwise terminating communication with the transmitting device.

Abstract: An input device includes a display substrate and a stack of display layers disposed on the display substrate, the stack of display layers including a conductive layer. The input device further includes at least one capacitive sensing layer in the stack of display layers and a multitude of capacitive sensing electrodes disposed in the at least one capacitive sensing layer, and configured for capacitance sensing. The input device also includes a processing system configured to selectively drive the multitude of capacitive sensing electrodes to emit a first sensing signal while balancing a total current induced in the conductive layer, caused by an electromagnetic emission associated with the first sensing signal.

Abstract: An input device includes a capacitive proximity sensor and a processing system. The capacitive proximity sensor includes a multitude of transmitter electrodes and a multitude of receiver electrodes for proximity sensing in a sensing region. The processing system is configured to obtain a noisy sensor signal from the capacitive proximity sensor, extract a spike train in the noisy sensor signal, synchronize a pulse output of a pulse-generating circuit onto the spike train, and triggered by a first of a multitude of pulses of the pulse output, perform a first capacitive proximity sensing.

Abstract: An input device comprises a plurality of data lines of a display panel, a plurality of sensor electrodes, and a processing system. The processing system drives a sensor electrode with a sensing signal during a first portion of a non-display update period of a display frame. In certain embodiments, a source driver of the processing system drives a data line with a first constant voltage during at least one of a second portion of the non-display update period and a third portion of the non-display update period. In certain embodiments, the source driver outputs a guard signal during the first portion of the non-display update period. The first portion of the non-display update period occurs after the second portion of the non-display update period and before the third portion of the non-display update period.

Abstract: A display driver comprises gamma processing circuitry, compensation circuitry, and driver circuitry. The gamma processing circuitry is configured to process the image data to generate gamma processed image data. The compensation circuitry is configured to process the gamma-processed image data, based on a ratio of a number of display elements that emit light to a total number of display elements of a display panel, to generate compensated image data. The driver circuitry is configured to drive the display panel based on the compensated image data.

Abstract: A force sensing device includes a first force sensor and a second force sensor. The first force sensor is configured to output a first force resulting signal and includes a first strain gauge coupled to a first voltage source and a first trace. The first force sensor further includes a second strain gauge coupled to a second voltage source and the first trace. The second force sensor is configured to output a second force resulting signal having a polarity opposite that of the first force resulting signal. The second force sensor includes a first strain gauge coupled to the second voltage source and a second trace, and a second strain gauge coupled to the first voltage source and the second trace.

Abstract: A processing system comprises interface circuitry and a timing controller. The interface circuitry is configured to receive a vertical sync period indicator that indicates a start of an external vertical sync period. The timing controller is configured to, in response to a change in a display frame rate, control timing of a display drive operation and a proximity sensing operation to maintain a proximity sensing frame rate based on input timing of the vertical sync period indicator to the interface circuitry. The processing system is configured to supply drive signals to display elements of a display panel in the display drive operation and acquire sensing signals from sensor electrodes of the display panel in the proximity sensing operation.

Abstract: One or more embodiments are directed to compensating for a long horizontal blank (LHB) period. Using a first display data value, a compensation amount is determined from a mapping between display data and compensation amounts. The first display data value is for a display row after an LHB period in a display frame of a display panel. A second display data value is adjusted with the compensation amount to obtain revised display data value. The revised display data value is outputted for the display panel.

Abstract: Systems and methods for differential data transmission using an unterminated transmission line comprise a plurality of switches configured to control a differential voltage output on a pair of output lines, wherein the plurality of switches have a first state in which a high voltage is output on a first of the pair of output lines and a low voltage is output on a second of the pair of output lines, and wherein the plurality of switches have a second state in which the low voltage is output on the first of the pair of output lines and the high voltage is output on the second of the pair of output lines. A transition switch with an output impedance equal to that of the output lines will discharge the lines during a state transition so as to reduce to power consumption associated with changing states of the transmission line.

Abstract: An electronic device includes a rotatable interface configured to be placed on an input device, the rotatable interface including a conductor region and an adjacent patterned region. The rotatable device further includes a first set of coupling electrodes configured to be electrically coupled to the conductor region and to receive a reference signal from a first electrode of the input device, and a second set of coupling electrodes configured to be electrically coupled to the patterned region and to be electrically coupled to a second electrode of the input device, the second electrode configured to receive a resulting signal modified by the rotatable interface. In embodiments, at least a portion of each electrode of the first set of coupling electrodes and the second set of coupling electrodes is respectively provided underneath the conductor and patterned regions, and is configured to abut the input device.

Abstract: A display driver includes image processing circuitry and driver circuitry. The image processing circuitry is configured to process image data for a plurality of pixel circuits of a display panel. The image processing circuitry includes a demura table comprising one or more base compensation values associated with each of the plurality of pixel circuits, and a lookup table (LUT) comprising one or more compensation coefficients associated with each of a plurality of frame rates. Processing the image data for the pixel circuits comprises a mura compensation for at least one pixel circuit of the plurality of pixel circuits using the one or more base compensation values and the one or more compensation coefficients. The drive circuitry is configured to update the plurality of pixel circuits based on the processed image data.

Abstract: 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 the peer. The state machine computes a peer response to the challenge using the session key for the peer and a symmetric cipher function.

Abstract: A display driver comprises a first memory configured to store mura correction data image processing circuitry configured to perform mura correction on image data to be displayed on a display panel based on the mura correction data received from the first memory, and control circuitry configured to detect a first error in the mura correction data received from the first memory. The control circuitry is further configured to control a communication with a second memory storing the mura correction data based on the detection of the first error.

Abstract: 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.