Patents Assigned to Synaptics Incorporated
  • Patent number: 12039120
    Abstract: A processing system includes sensor circuitry and processing circuitry. The sensor circuitry is configured to, using the sensor electrodes, obtain capacitive measurements of a sensing region, and obtain a resistance measurement of the sensing region. The processing circuitry is coupled to the sensor circuitry. The processing circuitry is configured to determine a location of an input object using the capacitive measurements of the sensing region and determine a force value based on the resistance measurement and the location of the input object. Determining the force value mitigates a temperature variation of the sensing region affecting the resistance measurement. The processing circuitry is further configured to report the force value.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: July 16, 2024
    Assignee: Synaptics Incorporated
    Inventor: Tom Vandermeijden
  • Patent number: 12033572
    Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to determine a total current of a display panel and perform an IR-drop compensation using the total current and a first graylevel for a first subpixel of the display panel to determine a first voltage level for the first subpixel. The drive circuitry is configured to update the first subpixel based at least in part on the first voltage level.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: July 9, 2024
    Assignee: Synaptics Incorporated
    Inventors: Masao Orio, Hirobumi Furihata, Takashi Nose
  • Patent number: 12034462
    Abstract: This disclosure provides methods, devices, and systems for data compression. The present implementations more specifically relate to encoding techniques for compressing probability tables used for entropy coding. In some aspects, an entropy encoder may encode a probability table so that one or more contexts are represented by fewer bits than would otherwise be needed to represent the frequency of each symbol as a proportion of the total frequency of all symbols associated with such contexts. For example, if a given row of the probability table (prior to encoding) includes a number (M) of entries each having a binary value represented by a number (K) of bits, the same row of entries may be represented by fewer than M*K bits in the encoded probability table.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: July 9, 2024
    Assignee: Synaptics Incorporated
    Inventor: Scott Liam Ransom
  • Patent number: 12032786
    Abstract: A method is provided. The method comprises: providing, by a control system of an input device, one or more first beacon signals to an input object; based, at least in part, on force data from the input object, detecting, by the control system, noise interference associated with providing at least one of the one or more first beacon signals to the input object; based, at least in part, on detecting the noise interference, altering, by the control system, a timing schedule for providing one or more subsequent beacon signals; and providing, by the control system, the one or more subsequent beacon signals to the input object based, at least in part, on the timing schedule.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: July 9, 2024
    Assignee: Synaptics Incorporated
    Inventors: Tom Vandermeijden, Ching-Hsung Wang
  • Patent number: 12027141
    Abstract: This disclosure provides methods, devices, and systems for data synchronization. The present implementations more specifically relate to adjusting a rate at which display updates are output to a digital display based on an activity level associated with the digital display. For example, digital displays that render images with relatively little motion or user engagement may be associated with lower activity levels, whereas digital displays that render images with more significant motion or user engagement may be associated with higher activity levels. In some aspects, an adaptive display interface may dynamically increase the rate at which display frames are output to a display when the activity level increases and may dynamically decrease the rate at which display frames are output to the display when the activity level decreases.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: July 2, 2024
    Assignee: Synaptics Incorporated
    Inventor: Tony David Lambord
  • Patent number: 12026971
    Abstract: A sensor assembly includes a cover layer and a first sensor apparatus. The cover layer is molded from a first material to have a planar surface and non-uniform thickness, where a thickness of the first material at a first region of the cover layer is less than a thickness of the first material surrounding the first region. The first sensor apparatus is disposed beneath the planar surface of the cover layer, within the first region. The first sensor apparatus is configured to transmit and receive first capacitive sensing signals through a portion of the planar surface coinciding with the first region. For example, the first sensor apparatus may be a fingerprint sensor configured to detect a fingerprint on the portion of the planar surface coinciding with the first region based on changes in the first capacitive sensing signals.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: July 2, 2024
    Assignee: Synaptics Incorporated
    Inventors: Yeh-Cheng Tan, Shengmin Wen
  • Patent number: 12026396
    Abstract: A memory device includes a first word and a second word. The first word has a first subset of a plurality of elements. The first subset of the plurality of elements each have a first set of sequential index values along a first dimension of a tensor, a first single index value for a second dimension of the tensor, and a second single index value for a third dimension of the tensor. The second word has a second subset of the plurality of elements. The second subset of the plurality of elements each have the first set of sequential index values along the first dimension of the tensor that is the same as the first word, the first single index value for the second dimension of the tensor that is the same as the first word, and a third single index value for the third dimension of the tensor that is different than the second single index value for the first word. The second word is adjacent to the first word in memory.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: July 2, 2024
    Assignee: Synaptics Incorporated
    Inventor: Patrick Worfolk
  • Patent number: 12026009
    Abstract: Quadrature clock generation circuits and techniques are disclosed. An example quadrature clock generator includes an in-phase (I) clock generation circuit to generate an I clock signal based on a reference clock signal, the I clock signal and the reference clock signal each having a first frequency, a quadrature phase (Q) clock generation circuit to generate a Q clock signal based on the reference clock signal, a rise time control signal, and a fall time control signal, the Q clock signal having the first frequency, and a control circuit to generate the rise time control signal and the fall time control signal based on the I clock signal and the Q clock signal.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: July 2, 2024
    Assignee: Synaptics Incorporated
    Inventors: Chandra Shekar Reddy Ayya, Jae Won Choi
  • Publication number: 20240212333
    Abstract: This disclosure provides methods, devices, and systems for machine learning. The present implementations more specifically relate to techniques for reducing the computational load of a convolutional neural network (CNN) when processing successive video frames. In some aspects, a machine learning system may cache or store the outputs (also referred to as “activations”) produced by one or more layers of a CNN so that one or more cached activations can be substituted for respective activations that would otherwise be computed by the CNN when processing a subsequent video frame. For example, the machine learning system may compare each video frame with a preceding frame of the video to detect pixels that undergo significant changes between successive frames (also referred to as “motion pixels”). In some aspects, the CNN may only perform neural network operations that involve one or more motion pixels or features derived from a motion pixel.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 27, 2024
    Applicant: Synaptics Incorporated
    Inventors: Dmitri LVOV, Maor SHLIEFER
  • Patent number: 12020666
    Abstract: A display driver that includes image processing circuitry and a source driver. The image processing circuitry is configured to perform a burn-in compensation to determine a first compensated luminance value for a first pixel in a first area of a display panel based at least in part on a first accumulated luminance value for the first pixel. The first area has a first pixel layout. The image processing circuitry is further configured to scale a second accumulated luminance value for a second pixel in a second area of the display panel to determine a scaled accumulated luminance value. The second area has a second pixel layout different from the first pixel layout. The image processing circuitry is further configured to perform a burn-in compensation to determine a second compensated luminance value for the second pixel based at least in part on the scaled accumulated luminance value.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: June 25, 2024
    Assignee: Synaptics Incorporated
    Inventors: Kazutoshi Aogaki, Takashi Nose, Hirobumi Furihata
  • Patent number: 12019832
    Abstract: Low ground mass mitigation for pens includes sensing circuitry configured to transmit, during a first frame, a beacon signal on a first subset of sensing electrodes, the first subset being along a first axis of an input device, transmit, during a second frame, the beacon signal on a second subset of the sensing electrodes, the second subset being along the first axis and different from the first subset, and receive a pen signal transmitted responsive to the beacon signal. The processing circuitry is configured to detect a location of a capacitive pen using the pen signal.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: June 25, 2024
    Assignee: Synaptics Incorporated
    Inventors: Tom Vandermeijden, Kirk Hargreaves, Robert Bolender
  • Publication number: 20240203368
    Abstract: A display driver includes a display panel, a backlight array, and backlight control circuitry. The backlight array includes a plurality of light sources and is configured to illuminate the display panel. The backlight control circuitry is configured to determine first base luminance for a first light source of the plurality of light sources based at least in part on pixel data for a first set of pixels associated with the first light source. The backlight control circuitry is further configured to determine first compensated luminance for the first light source by modifying the first base luminance based at least in part on a position of the first light source in the backlight array. The backlight control circuitry is further configured to control light emission of the first light source based at least in part on the first compensated luminance.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 20, 2024
    Applicant: Synaptics Incorporated
    Inventors: Masao Orio, Takashi Nose, Hirobumi Furihata, Tomoo Minaki, Kazutoshi Aogaki
  • Patent number: 12010332
    Abstract: This disclosure provides methods, devices, and systems for video compression. The present implementations more specifically relate to video compression techniques that account for spatial-temporal changes in pixel values. In some aspects, an encoder may determine a change importance factor (CIF) for each image tile of a current image to be encoded. The encoder may calculate the CIF for an image tile of the current image (the “current image tile”) based on a degree of variation among the pixel values in the current image tile, a degree of change between the current image tile and a respective image tile of a previously-encoded image (the “previous image tile”), and a degree of variation among the pixel values in the previous image tile. In some implementations, the encoder may determine whether to transmit each of the current image tiles to a receiving device based on the CIF associated with the respective image tile.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: June 11, 2024
    Assignee: Synaptics Incorporated
    Inventor: Maciej Sebastian Pedzisz
  • Publication number: 20240184737
    Abstract: This disclosure provides methods, devices, and systems for transmitting and receiving image data. The present implementations more specifically relate to repurposing non-video interfaces to receive image data. In some aspects, an image processing device may be coupled to an image source via an audio interface. For example, the audio interface may be an inter-IC sound (I2S) serial bus interface having at least a serial data input and a word select (WS) input. In some implementations, the serial data input may be coupled to receive image data from the image source and the WS input may be coupled to receive a WS signal that tracks a horizontal synchronization (HSYNC) signal associated with the image data. Accordingly, the image processing device may capture (or store) frames of received image data, where the beginning of each frame is aligned with an edge of the WS signal (and thus, the HSYNC signal).
    Type: Application
    Filed: February 12, 2024
    Publication date: June 6, 2024
    Applicant: Synaptics Incorporated
    Inventors: Shi-Jie LI, Thavatchai MONTREEVAT
  • Publication number: 20240169478
    Abstract: This disclosure provides methods, devices, and systems for image scaling. The present implementations more specifically relate to downscaling techniques that preserve a subset of pixel values in a digital image so that all reconstructed pixel values in the upscaled image can be interpolated based on two or more preserved pixel values. In some aspects, an image downscaler may partition a digital image into a number of image tiles based on a base tile size and one or more scaling factors associated with a downscaling operation used to downscale each image tile. The base tile size indicates the dimensions of the downscaled tiles. The one or more scaling factors indicate distances between the pixel values preserved as a result of one or more iterations, respectively, of the downscaling operation, where each iteration preserves a smaller subset of the pixel values from the original image (as a lower resolution tile).
    Type: Application
    Filed: November 21, 2022
    Publication date: May 23, 2024
    Applicant: Synaptics Incorporated
    Inventors: Scott Liam RANSOM, Paul JAMES, Timothy John BORER
  • Publication number: 20240170008
    Abstract: A method of training neural networks may include receiving a sequence of audio frames, and mapping a first audio frame in the sequence of audio frames to a first output frame based on a neural network. The first output frame may represent a noise-invariant component of the first audio frame. The method may also include determining a first loss value based on differences between the first output frame and a first ground truth frame. The method may include mapping the first audio frame to a second output frame based on the neural network. The second output frame may represent a noise-variant component of the first audio frame. The method may further include determining a second loss value based on differences between the second output frame and a second ground truth frame, and updating the neural network based at least in part on the first and second loss values.
    Type: Application
    Filed: November 11, 2022
    Publication date: May 23, 2024
    Applicant: Synaptics Incorporated
    Inventors: Saeed MOSAYYEBPOUR KASKARI, Atabak POUYA
  • Publication number: 20240169969
    Abstract: An audio processing system, such as an active noise cancellation system, and method suppresses tonal howling in a feedback system based on a gain enhancement system that emphasizes the howling signal and deemphasizes non-howling signals. The howling signal is extracted from an error signal generated from sound from a speaker sensed by an error sensor. The gain enhancement signal is generated based on a first power ratio between a filtered reference signal, generated based on sound sensed from external noise by a reference sensor, and a filtered error signal and/or a second power ratio between two filtered error signals with different passbands. Using the gain enhancement signal and the howling signal, a howling suppression gain signal is generated and used to amplify the error signal. A feedback signal produced based on the amplified error signal is provided to the speaker as an anti-noise signal with suppressed howling.
    Type: Application
    Filed: November 23, 2022
    Publication date: May 23, 2024
    Applicant: Synaptics Incorporated
    Inventors: Pei-Wen Hsieh, Chuan-Yau Chan, Saeed Mosayyebpour Kaskari
  • Patent number: 11991371
    Abstract: An apparatus for remote processing of raw image data receives the raw image data from a camera, such as a security camera. The apparatus includes a detection module to detect portions of the image data that contain possible regions of interest. Information indicating the portions that contain the possible regions of interest is then used during a compression process so that the portions that contain the possible regions of interest are compressed using one or more compression algorithms to facilitate further analysis and the remainder are treated differently. The compressed image data is then transmitted to a central system for decompression and further analysis. In some cases, the detection system may detect possible regions of interest which appear to be faces, but without performing full facial recognition. These parts of the image data are then compressed in such a way as to maintain as much facial detail as possible, so as to facilitate the facial recognition when it is carried out at the central server.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: May 21, 2024
    Assignee: Synaptics Incorporated
    Inventors: Sebastian Matysik, Peter Burgers
  • Patent number: 11983338
    Abstract: A system for using a transparent conductive material layer for a knob interface is provided. The system comprises: the knob interface comprising a fixed base and one or more knob interface electrodes; the transparent conductive material layer configured to electrically couple the subset of the plurality of grid electrodes to the one or more knob interface electrodes; and a processing system. The processing system is configured to: drive the plurality of grid electrodes with one or more signals; receive one or more resulting signals based on driving the plurality of grid electrodes with the one or more signals; and perform one or more actions based on the one or more resulting signals.
    Type: Grant
    Filed: February 9, 2023
    Date of Patent: May 14, 2024
    Assignee: Synaptics Incorporated
    Inventors: Kelvin Fong, Danny Joseph
  • Patent number: 11979587
    Abstract: This disclosure provides methods, devices, and systems for video coding. The present implementations more specifically relate to hybrid coding techniques that combine aspects of inter-frame coding with aspects of intra-frame coding. In some aspects, a video encoder may perform inter-frame coding in a weighted manner so that the coded video frames (also referred to as “residual frames”) may include contributions from the current video frame to be transmitted over a communication channel and also may include contributions from the previous video frame transmitted over the communication channel. More specifically, any pixel value (r(n)) in the residual frame can be expressed as a weighted combination of a respective pixel value (x(n)) in the current video frame and a co-located pixel value (x(n?1)) in the previous video frame, where r(n)=x(n)??·x(n?1) and where 0???1 is a scaling factor representing the degree of contribution by the previous video frame.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: May 7, 2024
    Assignee: Synaptics Incorporated
    Inventors: Maciej Sebastian Pedzisz, Timothy John Borer