Patents by Inventor Huan Wu

Huan Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250028890
    Abstract: Aspects relate to monitoring timing. In one example an apparatus includes a first sensor array formed in an integrated circuit, sensors of the first sensor array having paths through the integrated circuit and sensors of the first sensor array configured to generate one or more first level indications of a condition of the integrated circuit. A second sensor array is formed in the integrated circuit. Sensors of the second sensor array have paths through the integrated circuit and sensors of the second sensor array are configured to generate one or more second level indications of the condition of the integrated circuit. A monitor controller is coupled to the first sensor array and to the second sensor array and configured to receive the one or more first level indications and to actuate the second sensor array in response to the one or more first level indications.
    Type: Application
    Filed: October 6, 2023
    Publication date: January 23, 2025
    Inventors: Anatoly GELMAN, Michael James SMITH, James Cheng-Huan WU, Olivier ALAVOINE, Amit ANEJA
  • Publication number: 20250028377
    Abstract: Aspects relate to monitoring timing margin of logic paths and its degradation through an integrated circuit. In one example an integrated circuit has a logic path formed in the integrated circuit. A monitor circuit is formed in the integrated circuit near the logic path and configured to monitor a condition of the logic path and to generate a diagnostic code sequence to indicate the condition of the logic path over time. A monitor controller is configured to receive diagnostic codes of the diagnostic code sequence, to determine a condition of the integrated circuit based on the diagnostic code sequence, and to initiate a remedial action in response to the condition of the integrated circuit.
    Type: Application
    Filed: October 6, 2023
    Publication date: January 23, 2025
    Inventors: Anatoly GELMAN, Michael James SMITH, James Cheng-Huan WU, Olivier ALAVOINE, Amit ANEJA
  • Publication number: 20250027996
    Abstract: Aspects relate to monitoring timing margin of logic paths and its degradation through an integrated circuit. In one example an apparatus includes an integrated circuit having a logic path formed in the integrated circuit and a monitor circuit formed in the integrated circuit. The monitor circuit is configured to monitor a condition of the logic path and to generate a diagnostic code sequence to indicate the condition of the logic path over time. A monitor controller is configured to receive diagnostic codes of the diagnostic code sequence, to store the diagnostic codes in a log with a corresponding time stamp and to determine a condition of the integrated circuit based on the diagnostic code sequence.
    Type: Application
    Filed: October 6, 2023
    Publication date: January 23, 2025
    Inventors: Anatoly GELMAN, Michael James SMITH, James Cheng-Huan WU, Olivier ALAVOINE, Amit ANEJA
  • Patent number: 12207024
    Abstract: A method of an image sensor circuit includes: providing an event camera comprising at least one pixel unit; using the event camera to sense at least one current pixel value of the at least one pixel unit to detect whether at least one pixel value changes; when the at least one pixel value changes, using the event camera to trigger the digital processing circuit when the digital processing circuit is in a power saving mode and transmit information of the at least one pixel value to the digital processing circuit.
    Type: Grant
    Filed: February 20, 2023
    Date of Patent: January 21, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: Chih-Huan Wu, Wen-Han Yao
  • Patent number: 12184998
    Abstract: There is provided a global shutter sensor including a pixel array and a processor. The pixel array acquires first pixel data corresponding to a first exposure period and second pixel data corresponding to a second exposure period of different pixel regions using time division or spatial division, wherein the first exposure period is shorter than the second exposure period. The processor calculates a difference between (the second exposure period/the first exposure period)×the first pixel data and the second pixel data to obtain parasitic light sensitivity of the different pixel regions, and determines gains and/or exposure periods corresponding to the different pixel regions to compensate the parasitic light sensitivity.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: December 31, 2024
    Assignee: PIXART IMAGING INC.
    Inventor: Chih-Huan Wu
  • Publication number: 20240371803
    Abstract: A method is provided for forming a redistribution layer (RDL) structure. An RDL feature is formed over a die, and the RDL feature is electrically connected to a contact of the die. A passivation layer is formed over the RDL feature. A patterned etch mask layer is formed over the passivation layer, and has an opening over a portion of the RDL feature. The passivation layer is patterned using the patterned etch mask layer disposed thereon. The patterned etch mask layer is removed after the passivation layer is patterned using the patterned etch mask layer disposed thereon. The passivation layer is etched to form a passivation opening in the passivation layer, and the portion of the RDL feature is exposed through the passivation opening.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 7, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jui-Wen SU, Shi-Hua TZENG, Tsung-Huan WU, Po-Chi WU
  • Publication number: 20240340541
    Abstract: An optical sensor, for sensing a sensing frame corresponding to a flicker period of ambient light, comprising: a pixel array, configured to perform N times of exposure operations via at least one pixel of the pixel array in N exposure time intervals to generate N sub-frames, wherein a summation of the N exposure time intervals equals to a sensing interval and the sensing interval is less than or identical to a first flicker period. The optical sensor adds the N sub-frames to generate a summing sub-frame. The sensing frame comprises the summing sub-frame. The adding operation can also be performed to digital signals generated from the sub-frames. The influences caused by the fluctuation of ambient light can be neutralized, since the frame or portion of the frame is sensed at least twice at different phases of a single flicked period. By this way, the conventional flicker issue can be improved.
    Type: Application
    Filed: June 12, 2024
    Publication date: October 10, 2024
    Applicant: PixArt Imaging Inc.
    Inventor: Chih-Huan Wu
  • Publication number: 20240340553
    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first circuit, a second circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first circuit. Within a second interval, the photodiode detects second light energy to be stored in the second circuit. Within an operation interval, the first circuit outputs a first detection signal according to the first light energy and outputs a second detection signal according to the second light energy for being calculated by the operation circuit.
    Type: Application
    Filed: June 19, 2024
    Publication date: October 10, 2024
    Inventors: REN-CHIEH LIU, CHIH-HUAN WU, YI-HSIEN KO, HAN-CHI LIU
  • Publication number: 20240340528
    Abstract: There is provided a motion sensor including a pixel array and a processor. The motion sensor is embedded with multiple power consumption modes. In one of the multiple power consumption modes, the pixel array outputs image frames having different frame formats. The processor processes the image frames having different frame formats respectively using different algorithms so as to achieve the purposes of low power consumption and high detection sensitivity.
    Type: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Inventor: CHIH-HUAN WU
  • Patent number: 12114063
    Abstract: There is provided a motion sensor including a pixel array and a processor. The motion sensor is embedded with multiple power consumption modes. In one of the multiple power consumption modes, the pixel array outputs image frames having different frame formats. The processor processes the image frames having different frame formats respectively using different algorithms so as to achieve the purposes of low power consumption and high detection sensitivity.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: October 8, 2024
    Assignee: PIXART IMAGING INC.
    Inventor: Chih-Huan Wu
  • Patent number: 12058467
    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: August 6, 2024
    Inventors: Ren-Chieh Liu, Chih-Huan Wu, Yi-Hsien Ko, Han-Chi Liu
  • Patent number: 12058921
    Abstract: The present disclosure provides a cutting method of a display module, including: providing a display module to be cut, the display module to be cut including a display panel and a spacing layer on the display panel, and the display panel including a region to be cut, the spacing layer being provided with a first through hole exposing the region to be cut, and the first through hole being provided therein with an encapsulation adhesive; and performing laser cutting on the display module to be cut at a position of the region to be cut so as to remove the region to be cut to form a cutting groove. In the laser cutting, at least part of the encapsulation adhesive is melted and covers a sidewall of the cutting groove.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: August 6, 2024
    Assignees: BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huan Wu, Meishan Xu, Wanbin Li, Jie Xiang, Ruqin Zhang, Mengyang Xian
  • Publication number: 20240251624
    Abstract: The present disclosure provides a pixel structure, a display substrate and a display device, and relates to the field of display technology. The pixel structure includes a plurality of sub-pixels located in an imaginary quadrilateral, the plurality of sub-pixels include a first color sub-pixel, a second color sub-pixel and at least one third color sub-pixel, the imaginary quadrilateral includes a first inner corner and a second inner corner that are opposite to each other, and a third inner corner and a fourth inner corner that are opposite to each other. The first color sub-pixel is located at the first inner corner c1, the second color sub-pixel 22 is located at the second inner corner c2, and at least one third color sub-pixel is located at the third inner corner c3 and the fourth inner corner c4.
    Type: Application
    Filed: February 18, 2022
    Publication date: July 25, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jianpeng Wu, Jianbo Li, Wenbiao Ding, Qingxian Li, Juan Li, Huan Wu, Ju Mei
  • Patent number: 12047687
    Abstract: An optical sensor, for sensing a sensing frame corresponding to a flicker period of ambient light, comprising: a pixel array, configured to perform N times of exposure operations via at least one pixel of the pixel array in N exposure time intervals to generate N sub-frames, wherein a summation of the N exposure time intervals equals to a sensing interval and the sensing interval is less than or identical to a first flicker period. The optical sensor adds the N sub-frames to generate a summing sub-frame. The sensing frame comprises the summing sub-frame. The adding operation can also be performed to digital signals generated from the sub-frames. The influences caused by the fluctuation of ambient light can be neutralized, since the frame or portion of the frame is sensed at least twice at different phases of a single flicked period. By this way, the conventional flicker issue can be improved.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: July 23, 2024
    Assignee: PixArt Imaging Inc.
    Inventor: Chih-Huan Wu
  • Publication number: 20240196109
    Abstract: There is provided a global shutter sensor including a pixel array and a processor. The pixel array acquires first pixel data corresponding to a first exposure period and second pixel data corresponding to a second exposure period of different pixel regions using time division or spatial division, wherein the first exposure period is shorter than the second exposure period. The processor calculates a difference between (the second exposure period/the first exposure period)×the first pixel data and the second pixel data to obtain parasitic light sensitivity of the different pixel regions, and determines gains and/or exposure periods corresponding to the different pixel regions to compensate the parasitic light sensitivity.
    Type: Application
    Filed: December 7, 2022
    Publication date: June 13, 2024
    Inventor: Chih-Huan WU
  • Patent number: 11983224
    Abstract: Provided are a data presentation system, method and device, and a computer-readable storage medium. The data presentation system includes: a data collection device configured to collect multiple service system data each from a respective data source and store the service system data in a database; a data parsing device configured to obtain the multiple service system data from the database, and parse each service system data through a respective data model to obtain a data block corresponding to the respective data source; a request responding device configured to: in response to a data request sent by a client, obtain the data block matching the data request as a demanded data block; and a data sending device configured to send the demanded data block to the client to enable a display interface of the client to display the demanded data block.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: May 14, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Chunyang Wang, Huan Wu
  • Publication number: 20240107185
    Abstract: There is provided a motion sensor including a pixel array and a processor. The motion sensor is embedded with multiple power consumption modes. In one of the multiple power consumption modes, the pixel array outputs image frames having different frame formats. The processor processes the image frames having different frame formats respectively using different algorithms so as to achieve the purposes of low power consumption and high detection sensitivity.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 28, 2024
    Inventor: Chih-Huan WU
  • Publication number: 20240096135
    Abstract: There is provided a locker with a motion sensor. The motion sensor identifies whether an object is put into or taken out from the locker by calculating coordinates of the object using a motion detection algorithm, by calculating a moving vector of the object using an image time differential algorithm or by comparing a current image frame and a background image frame, and outputs a put-in signal and a taken-out signal to a post control system.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Inventors: CHIH-HUAN WU, Wen-Han Yao, Yl-Hsien Ko
  • Publication number: 20240073359
    Abstract: A motion detection method applied into an image sensor device includes: providing a plurality of regions of interest (ROIs) on at least one monitoring image; for each region of interest (ROI): detecting whether at least one motion event occurs within the each ROI; and determining a priority level of the each ROI according to at least one feature information of the at least one motion event; and determining an alarm schedule of the ROIs for a user according to a plurality of priority levels of the ROIs.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: PixArt Imaging Inc.
    Inventors: Chih-Huan Wu, Yi-Hsien Ko, Wen-Han Yao
  • Publication number: 20240064416
    Abstract: An optical sensor, for sensing a sensing frame corresponding to a flicker period of ambient light, comprising: a pixel array, configured to perform N times of exposure operations via at least one pixel of the pixel array in N exposure time intervals to generate N sub-frames, wherein a summation of the N exposure time intervals equals to a sensing interval and the sensing interval is less than or identical to a first flicker period. The optical sensor adds the N sub-frames to generate a summing sub-frame. The sensing frame comprises the summing sub-frame. The adding operation can also be performed to digital signals generated from the sub-frames. The influences caused by the fluctuation of ambient light can be neutralized, since the frame or portion of the frame is sensed at least twice at different phases of a single flicked period. By this way, the conventional flicker issue can be improved.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 22, 2024
    Applicant: PixArt Imaging Inc.
    Inventor: Chih-Huan Wu