Multi-endpoint data transport system
Granted: March 7, 2023
Patent Number:
11599487
A time domain duplex (TDD) device is disclosed. The TDD device may include at least a digital interface and a TDD physical interface (PHY). The digital interface may be coupled to a plurality of peripheral devices. The TDD PHY may be coupled to a micro-coaxial cable. The TDD device may aggregate data from the plurality of peripheral devices and transmit the aggregated data through the TDD PHY.
DC-DC converter output regulation systems and methods
Granted: February 28, 2023
Patent Number:
11594964
A circuit includes a controller circuit configured to receive an output voltage of a converter and adjust a switching frequency of the converter in response to a status of an output load and an output load sensing circuit configured to determine the status of the output load and provide the peak current to the controller circuit. The output load sensing circuit may include a first timer configured to provide a delayed first signal to a peak current control in response to the output load…
System and method for touch sensing noise mitigation using sub-burst size
Granted: February 28, 2023
Patent Number:
11592937
A display controller includes a touch sensing controller configured to drive sensing electrodes with a touch sensing waveform that includes multiple modulations. The touch sensing controller is further configured to halt driving the plurality of sensing electrodes when a number of the modulations satisfies a selected sub-burst size. The touch sensing waveform is synchronized to an instance of a horizontal sync signal.
Semiconductor device having a communication bus
Granted: February 28, 2023
Patent Number:
11592927
A semiconductor device for an input device comprises sensor circuitry, a plurality of contacts and a sensor bus. A first contact of the plurality of contacts is configured to be coupled to a first sensor electrode of the plurality of sensor electrodes, a second contact of the plurality of contacts is configured to be coupled to a second sensor electrode of the plurality of sensor electrodes, and a third contact of the plurality of contacts is configured to be coupled to a third sensor…
Low latency input object detection under low ground mass condition
Granted: February 28, 2023
Patent Number:
11592925
A processing system configured to detect an input object proximate the processing system. The processing system includes sensor circuitry configured to make a determination, when the processing system is in a low ground mass (LGM) state, that a large object is proximate to sensor electrodes of the processing system. The sensor circuitry is further configured, in response to a determination that a large object is proximate the sensor electrodes while the processing system is in the LGM…
Deep content tagging
Granted: February 21, 2023
Patent Number:
11589120
A method and apparatus for deep content tagging. A media device receives one or more first frames of a content item, where the one or more first frames spans a duration of a scene in the content item. The media device detects one or more objects or features in each of the first frames using a neural network model and identifies one or more first genres associated with the first frames based at least in part on the detected objects or features in each of the first frames. The media device…
Indication for multi-factor authentication
Granted: February 14, 2023
Patent Number:
11580211
An input device configured for multi-factor authentication. The input device includes a plurality of sensor electrodes, one or more light sources, and an authentication component. The plurality of sensor electrodes is configured for capacitive sensing in a sensing region of the input device. The one or more light sources are configured to illuminate at least a portion of the sensing region of the input device. The authentication component is configured to receive a first authentication…
AR/VR navigation with authentication using an integrated scrollwheel and fingerprint sensor user input apparatus
Granted: January 24, 2023
Patent Number:
11561612
A virtual reality (VR) or augmented reality (AR) system includes: a display configured to display a user interface to a user; an integrated scrollwheel and fingerprint sensor (FPS) user input apparatus, comprising a scrollwheel configured to detect a rotational navigation input from the user and an FPS configured to detect a biometric input from the user; and a processing system configured to: receive the rotational navigation input via the scrollwheel of the integrated scrollwheel and…
AR/VR navigation with authentication using an integrated scrollwheel and fingerprint sensor user input apparatus
Granted: January 24, 2023
Patent Number:
11561612
A virtual reality (VR) or augmented reality (AR) system includes: a display configured to display a user interface to a user; an integrated scrollwheel and fingerprint sensor (FPS) user input apparatus, comprising a scrollwheel configured to detect a rotational navigation input from the user and an FPS configured to detect a biometric input from the user; and a processing system configured to: receive the rotational navigation input via the scrollwheel of the integrated scrollwheel and…
Phase-locked loop with dual input reference and dynamic bandwidth control
Granted: January 17, 2023
Patent Number:
11558170
Disclosed herein are systems and methods for improved performance of phase-locked loop based clock generators, particularly in the context of wireless audio. A PLL clock generator includes a PLL core configured to receive a module reference clock provided by a communications module and generate a subsystem data clock corresponding to a module data clock of the communications module; and a data clock tracker module configured to receive the module data and subsystem data clocks and…
Device and method for capacitive sensing
Granted: January 17, 2023
Patent Number:
11556212
A processing system includes a level shifter, a drive circuit, and a capacitive sensing circuit. The level shifter is configured to generate a first level-shifted output corresponding to a graylevel value and a second level-shifted output corresponding to capacitive sensing control data. The drive circuit is configured to generate an output voltage based at least in part on the first level-shifted output. The capacitive sensing circuit is configured to receive a resulting signal from a…
Input-display device with shared memory
Granted: January 17, 2023
Patent Number:
11556195
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,…
Encoding demura calibration information
Granted: January 10, 2023
Patent Number:
11551614
A system and method for encoding, transmitting and updating a display based on demura calibration information for a display device comprises generating demura correction coefficients based on display color information, separating coherent components from the demura correction coefficients to generate residual information, and encode the residual information using a first encoding technique. Further, the image data may be divided into data streams, compressed and transmitted to from a…
Page-based memory access control
Granted: January 10, 2023
Patent Number:
11550482
A method and apparatus for controlling access to memory is disclosed. In one implementation, a memory controller may receive a memory access request that may include a virtual memory address, a device identifier (ID) and a protected access indicator. Additionally, the memory controller can receive page table entries including a physical memory address based on the virtual memory address and a security attribute associated with the physical memory address. The memory controller may access…
Short-term noise suppression
Granted: January 10, 2023
Patent Number:
11550434
A processing system is configured to drive a transmitter electrode with a repetitive multi-burst pattern. The repetitive multi-burst pattern includes a first multitude of bursts of a sensing waveform and a second multitude of bursts of the sensing waveform. The second multitude of bursts is a repetition of the first multitude of bursts. The processing system is further configured to receive, from a receiver electrode, a resulting signal in response to the repetitive multi-burst pattern,…
Reducing false triggers in motion-activated cameras
Granted: January 3, 2023
Patent Number:
11546514
This disclosure provides methods, devices, and systems for controlling motion-activated cameras. The present implementations more specifically relate to reducing false triggers in motion-activated camera systems. In some implementations, a motion-activated camera system may include a camera, a first motion sensor having a wide field-of-view (FOV), and a second motion sensor having a narrow FOV. In some aspects, the motion-activated camera system may be configured to operate in a wide-FOV…
Process monitor for wafer thinning
Granted: January 3, 2023
Patent Number:
11545366
A system and method for thinning an integrated circuit (IC) wafer. The system includes a support structure to hold the IC wafer and a mechanism to operate on the IC wafer. The support structure includes one or more inductive coils configured to transmit a power signal to the IC wafer and receive a feedback signal from the IC wafer. The system further includes a process controller to control the operation based at least in part on the feedback signal received from the IC wafer.
Multi-frequency-region touch sensing
Granted: December 20, 2022
Patent Number:
11531439
An input device includes transmitter electrodes disposed in a sensing region of the input device, a receiver electrode in the sensing region, and a processing system. The processing system includes demodulators, and is configured to simultaneously drive at least a subset of the transmitter electrodes using a multitude of transmitter signals with unique frequencies. The processing system is also configured to receive, on the receiver electrode, a resulting signal, and demodulate, using…
Inter-band harmonics interference mitigation for multi-frequency-region parallel scan
Granted: December 20, 2022
Patent Number:
11531425
A method for operating an input device, the method involving obtaining a number of non-sinusoidal transmitter signals with unique base frequencies, and selecting a sampling frequency of an analog-to-digital converter (ADC) such that a number of aliasing artifacts associated with higher harmonics of the non-sinusoidal transmitter signals is located at frequencies different from the base frequencies.
Low power baseline tracking for fingerprint sensor
Granted: December 13, 2022
Patent Number:
11527094
Low power consumption baseline tracking systems and methods for automatically tracking a baseline input into a capacitive sensor having a plurality of transmitter electrodes and a plurality of receiver electrodes. A partial baseline scan is captured by driving all or a portion of the plurality of transmitter electrodes simultaneously and detecting receiver signals from a subset of the at least one receiver electrode simultaneously, and the partial baseline scan is compared with a stored…
