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    Distributed analog display noise suppression circuit
    2.
    发明授权
    Distributed analog display noise suppression circuit 有权

    公开(公告)号：US12182366B2

    公开(公告)日：2024-12-31

    申请号：US18402872

    申请日：2024-01-03

    Applicant: Synaptics Incorporated

    Inventor： Chunbo Liu ,  Mihai Bulea

    IPC: G06F3/044

    Abstract: A processing system including an amplifier configured to generate, from multiple spatial-common-mode-processed signals, a spatial common mode estimate and multiple feedback signals. The processing system includes multiple charge integrators configured to obtain resulting signals from the capacitive sensor electrodes, each of the resulting signals including a spatial common mode component and a residual noise component. The charge integrators generate multiple spatial-common-mode-processed signals by mitigating the spatial common mode component and the residual noise component in the resulting signals using the feedback signals. The processing system includes a programmable gain amplifier configured to determine the spatial common mode estimate.

    Inter-integrated circuit sound (I2S) serial bus interface with support for multiple sample rates
    3.
    发明授权
    Inter-integrated circuit sound (I2S) serial bus interface with support for multiple sample rates 有权

    公开(公告)号：US12169468B2

    公开(公告)日：2024-12-17

    申请号：US18051991

    申请日：2022-11-02

    Applicant: Synaptics Incorporated

    Inventor： Shi-Jie Li

    IPC: G06F13/42

    Abstract: This disclosure provides methods, devices, and systems for audio communications. The present implementations more specifically relate to transmitting and receiving audio data at sample rates that are non-integer multiples of a clock frequency. In some aspects, a serial bus interface may generate a word select (WS) signal based on an input clock signal and may dynamically adjust a periodicity of the WS signal so that the WS signal has an effective frequency equal to a non-integer multiple of the clock frequency. In some implementations, the WS signal may be produced by direct digital synthesis (DDS) of the clock signal using a frequency control word (FCW). In such implementations, the periodicity of the WS signal may be dynamically adjusted by biasing the FCW based on errors or differences between the frequency of the WS signal and the desired frequency (such as in a feedback loop).

    SYSTEM TO COLLECT TRAINING DATA FOR IMAGING UNDER DISPLAY
    4.
    发明申请
    SYSTEM TO COLLECT TRAINING DATA FOR IMAGING UNDER DISPLAY 有权

    公开(公告)号：US20240406580A1

    公开(公告)日：2024-12-05

    申请号：US18325420

    申请日：2023-05-30

    Applicant: Synaptics Incorporated

    Inventor： Omar OREIFEJ ,  Karthikeyan SHANMUGA VADIVEL ,  Patrick A. WORFOLK

    IPC: H04N23/81 ,  G06T5/50 ,  H04N23/53 ,  H04N23/695

    Abstract: This disclosure provides methods, devices, and systems for machine learning. The present implementations more specifically relate to automatons that can acquire input images and ground truth images for training neural network models. In some aspects, a system for acquiring training data may include a camera, an electronic display, and an apparatus configured to maintain the camera in a stationary position while moving the electronic display in and out of the camera's field-of-view (FOV). In some aspects, the system may further include a controller configured to acquire training data via the camera based on the positioning of the electronic display. In some implementations, the controller may acquire ground truth images of a scene while the electronic display is covering the camera's FOV. In some other implementations, the controller may acquire input images of the scene while the electronic display is outside the camera's FOV.

    Color compensation for panel display device using light source array for backlighting
    5.
    发明授权
    Color compensation for panel display device using light source array for backlighting 有权

    公开(公告)号：US12142233B1

    公开(公告)日：2024-11-12

    申请号：US18345399

    申请日：2023-06-30

    Applicant: Synaptics Incorporated

    Inventor： Hirobumi Furihata ,  Takashi Nose ,  Masao Orio ,  Kazutoshi Aogaki

    IPC: G09G3/34 ,  G09G3/36

    Abstract: A display device that includes a display panel, a backlight device, and a display driver. The backlight device includes light sources configured such that color of light emitted from the light sources varies with luminance levels. The display driver is configured to: process a first input grey level of a first color for a target pixel based on a specified luminance level of a corresponding light source to determine a first output grey level of the first color for the target pixel; and configured to process a second input grey level of a second color for the target pixel based on the specified luminance level to determine a second output grey level of the second color for the target pixel. The first output grey level and the second output grey level are determined to compensate for a change in color of light emitted from the corresponding light source.

    AUDIO SOURCE SEPARATION FOR MULTI-CHANNEL BEAMFORMING BASED ON PERSONAL VOICE ACTIVITY DETECTION (VAD)
    6.
    发明申请
    AUDIO SOURCE SEPARATION FOR MULTI-CHANNEL BEAMFORMING BASED ON PERSONAL VOICE ACTIVITY DETECTION (VAD) 有权

    公开(公告)号：US20240371386A1

    公开(公告)日：2024-11-07

    申请号：US18310955

    申请日：2023-05-02

    Applicant: Synaptics Incorporated

    Inventor： Saeed MOSAYYEBPOUR KASKARI

    IPC: G10L21/0216 ,  G10L25/78

    Abstract: This disclosure provides methods, devices, and systems for speech enhancement. The present implementations more specifically relate to utilizing personal voice activity detectors (VADs) to suppress audio originating from a distractor audio source without distorting audio originating from a target audio source. In some aspects, a speech enhancement system may receive a multi-channel audio signal via a microphone array and may further generate, based on a neural network, an inference about whether a current frame of the audio signal includes speech from a known audio source. For example, the neural network may be a personal VAD that is trained to detect voice IDs associated with one or more target audio sources. In some implementations, the speech enhancement system may selectively steer a beam associated with a multi-channel beamformer toward a direction-of-arrival (DOA) of the current audio frame based, at least in part, on the inference.

    Capacitive detection of fold angle for foldable devices
    8.
    发明授权
    Capacitive detection of fold angle for foldable devices 有权

    公开(公告)号：US12072741B1

    公开(公告)日：2024-08-27

    申请号：US18172681

    申请日：2023-02-22

    Applicant: Synaptics Incorporated

    Inventor： Tom Vandermeijden ,  Guozhong Shen

    IPC: G06F1/16 ,  G01B7/30 ,  G06F3/044

    CPC classification number: G06F1/1677 ,  G01B7/30 ,  G06F1/1616 ,  G06F3/0446

    Abstract: A system for determining a fold angle of a foldable device includes a plurality of electrodes and a processing system. The processing system is configured to: determine a first detected temperature at a first time; obtain baseline reference absolute capacitance measurements associated with the first detected temperature and associated with a known fold angle of the foldable device; determine a second detected temperature at a second time later than the first time; obtain absolute capacitance measurements associated with the second detected temperature at the second time; generate updated baseline reference absolute capacitance measurements based on the obtained capacitive measurements associated with the second detected temperature at the second time; obtain absolute capacitance measurements at a third time later than the second time; and determine the fold angle of the foldable device based on the absolute capacitance measurements obtained at the third time and the updated baseline reference absolute capacitance measurements.

    HYBRID INTER-FRAME CODING USING AN AUTOREGRESSIVE MODEL
    10.
    发明公开
    HYBRID INTER-FRAME CODING USING AN AUTOREGRESSIVE MODEL 审中-公开

    公开(公告)号：US20240244237A1

    公开(公告)日：2024-07-18

    申请号：US18618936

    申请日：2024-03-27

    Applicant: Synaptics Incorporated

    Inventor： Maciej Sebastian PEDZISZ ,  Timothy John BORER

    IPC: H04N19/30 ,  H04N19/13 ,  H04N19/182

    CPC classification number: H04N19/30 ,  H04N19/13 ,  H04N19/182

    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)−α·x(n−1) and where 0≤α≤1 is a scaling factor representing the degree of contribution by the previous video frame.

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