Patents by Inventor Gang Hua

Gang Hua 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).

  • Patent number: 12266507
    Abstract: The present disclosure provides an impedance-matching method applied to a semiconductor process apparatus, an impedance-matching device, and the semiconductor process apparatus. The impedance-matching method includes adjusting a parameter value of an adjustable element of an impedance-matching device to a preset initial value at beginning of a process, when a radio frequency (RF) power supply is powered on, adjusting the parameter value of the adjustable element according to a pre-stored optimal matching path corresponding to the process, and adjusting the parameter value of the adjustable element using an automatic matching algorithm after reaching end time of the preset matching period until impedance-matching is achieved. The optimal matching path includes parameter values of the adjustable element corresponding to different moments in a preset matching period.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: April 1, 2025
    Assignee: BEIJING NAURA MICROELECTRONICS EQUIPMENT CO., LTD.
    Inventors: Jing Wei, Gang Wei, Yueping Hua
  • Publication number: 20250104660
    Abstract: A driving method for a display panel (100), a driving apparatus (200) for a display panel, and a display apparatus. The driving method includes: when in a first driving mode, determining a refresh region and a non-refresh region in a display panel (100) (S10); and inputting a first clock signal to a gate drive circuit (110) according to the refresh region and the non-refresh region, such that the gate drive circuit (110) outputs a first gate scan signal to a gate line in the non-refresh region, and outputs a second gate scan signal to a gate line in the refresh region (S20). The duration in which an active level of a first gate scan signal is maintained is less than the duration in which an active level of a second gate scan signal is maintained.
    Type: Application
    Filed: April 17, 2023
    Publication date: March 27, 2025
    Inventors: Liguang DENG, Dong WANG, Gang HUA, Shaobo LI, Min WANG, Jintang HU, Liangliang PAN, Jinghao LIU, Jiahao BAI, Zhining LIN, Xinyu CHEN
  • Patent number: 12253754
    Abstract: The embodiments of the present disclosure provide a display substrate, a display panel, and a display device. The display substrate includes: a first base substrate, wherein a plurality of sub-pixel regions arranged in an array are provided on the first base substrate; and a reflective layer provided on one side of the first base substrate, wherein a surface of the reflective layer away from the first base substrate is formed to include a plurality of first bumps and a plurality of second bumps, and the first bump has a size greater than that of the second bump.
    Type: Grant
    Filed: March 4, 2024
    Date of Patent: March 18, 2025
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jian Lin, Yong Zhang, Jian Wang, Wei Zhao, Gang Hua, Limin Zhang, Xianglei Qin, Zhichao Yang, Zepeng Sun, Yashuai An, Honggui Jin, Lingfang Nie, Zhilong Duan, Liangzhen Tang, Li Tian, Xinli Ma, Tianyu Xu, Bingyang Liu, Xueqiang Qian, Dongchuan Chen, Kaixuan Wang
  • Publication number: 20250080868
    Abstract: In an advanced driver-assistance system (ADAS), RAW sensor image processing for a machine vision (MV) application is important. Due to different color, e.g., red/green/blue (RGB), color components, being focused by the lens at different locations in image plane, the lateral chromatic aberration phenomenon may sometimes be observed, which causes false color around edges in the final image output, especially for high contrast edges, which can impede MV applications. Disclosed herein are low-latency, efficient, optimized designs for chromatic aberration correction (CAC) components.
    Type: Application
    Filed: November 21, 2024
    Publication date: March 6, 2025
    Inventors: Gang HUA, Rajasekhar Reddy ALLU, Mihir Narendra MODY, Niraj NANDAN, Mayank MANGLA, Pandy KALIMUTHU
  • Patent number: 12244979
    Abstract: Various embodiments disclosed herein relate to defective pixel detection and correction, and more specifically to using threshold functions based on color channels to compare pixel values to threshold values. A method is provided herein that comprises identifying a color channel of an image pixel in a frame and identifying a threshold function based at least on the color channel. The method further comprises applying the threshold function to one or more nearest-neighbor values to obtain a threshold value and determining whether a corresponding sensor pixel is defective based at least on a comparison of the image pixel to the threshold value.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: March 4, 2025
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jing-Fei Ren, Hrushikesh Garud, Rajasekhar Allu, Gang Hua, Niraj Nandan, Mayank Mangla, Mihir Narendra Mody
  • Patent number: 12244937
    Abstract: Disclosed herein are improvements to pixel pattern conversion, upsampling, and IR decontamination processes. An example includes an image processing pipeline comprising an upstream component, a pattern conversion component downstream with respect to the upstream component in the image processing pipeline, and a downstream component relative to the pattern conversion component. The pattern conversion component is configured to obtain RGB-IR pixel data produced by the upstream component of the image processing pipeline and convert the RGB-IR pixel data into RGB pixel data and IR pixel data using a conversion engine. The conversion engine is configured to demosaic the RGB-IR pixel into the RGB pixel data and the IR pixel data, remosaic the RGB pixel data into an RGB pattern and the IR pixel data into an IR pattern and remove IR contamination from the RGB pixel data of the RGB pattern for use by the downstream component.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: March 4, 2025
    Assignee: Texas Instruments Incorporated
    Inventors: Hrushikesh Garud, Rajasekhar Allu, Gang Hua, Pandy Kalimuthu
  • Patent number: 12236715
    Abstract: Described are systems and methods for determining an agent that performed an event within a materials handling facility. A series of overhead images that include representations of the event location and one or more agents are processed to determine a motion or movement of the agent over a period of time. For example, a motion model representative of a motion of the agent over a period of time is generated from the images. A distance between the motion model and the event location is also determined. An association between the agent and the event may be determined based on the motion model and the distance between the motion model and the event location.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: February 25, 2025
    Assignee: Amazon Technologies, Inc.
    Inventor: Gang Hua
  • Patent number: 12236562
    Abstract: A method for error handling in a geometric correction engine (GCE) is provided that includes receiving configuration parameters by the GCE, generating, by the GCE in accordance with the configuration parameters, output blocks of an output frame based on corresponding blocks of an input frame, detecting, by the GCE, a run-time error during the generating, and reporting, by the GCE, an event corresponding to the run-time error.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: February 25, 2025
    Assignee: Texas Instruments Incorporated
    Inventors: Gang Hua, Rajasekhar Reddy Allu, Niraj Nandan, Mihir Narendra Mody
  • Patent number: 12227837
    Abstract: Forming a protective coating ex situ in an atomic layer deposition process to coat one or more chamber components subsequently installed in a reaction chamber provides a number of benefits over more conventional coating methods such as in situ deposition of an undercoat. In certain cases the protective coating may have a particular composition such as aluminum oxide, aluminum fluoride, aluminum nitride, yttrium oxide, and/or yttrium fluoride. The protective coating may help reduce contamination on wafers processed using the coated chamber component. Further, the protective coating may act to stabilize the processing conditions within the reaction chamber, thereby achieving very stable/uniform processing results over the course of processing many batches of wafers, and minimizing radical loss. Also described are a number of techniques that may be used to restore the protective coating after the coated chamber component is used to process semiconductor wafers.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: February 18, 2025
    Assignee: Lam Research Corporation
    Inventors: Damodar Rajaram Shanbhag, Guangbi Yuan, Thadeous Bamford, Curtis Warren Bailey, Tony Kaushal, Krishna Birru, William Schlosser, Bo Gong, Huatan Qiu, Fengyuan Lai, Leonard Wai Fung Kho, Anand Chandrashekar, Andrew H. Breninger, Chen-Hua Hsu, Geoffrey Hohn, Gang Liu, Rohit Khare
  • Publication number: 20250054192
    Abstract: Techniques for image processing including receiving input image data, wherein the input image data includes data associated with a clear color channel, receiving a color offset value associated with a color channel, wherein color values for the color channel are not provided in the input image data, based on the color offset value, generating intermediate estimated color values for the color channel, wherein generating the intermediate estimated color values includes: clipping color values that have a magnitude greater than the color offset value, and adjusting color values that have a magnitude less than the color offset value based on the color offset value, applying a color correction function to the intermediate estimated color values based on the color offset value to determine color corrected estimated color values, and outputting the color corrected estimated color values.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Inventors: Gang HUA, Mihir Narendra MODY, Niraj NANDAN, Shashank DABRAL, Rajasekhar Reddy ALLU, Denis Roland BEAUDOIN
  • Patent number: 12222626
    Abstract: A display substrate, including: a base substrate; a plurality of gate lines and a plurality of data lines that intersect to surround a plurality of pixels; wherein each pixel includes a first thin film transistor, a second thin film transistor and a pixel electrode. A first electrode of the first thin film transistor is electrically connected to a pixel conductive layer of the pixel electrode, a second electrode of the first thin film transistor is electrically connected to a first electrode of the second thin film transistor, and a second electrode of the second thin film transistor is electrically connected to the data line. An orthographic projection of a combination of the second electrode of the first thin film transistor and the first electrode of the second thin film transistor on the base substrate at least partially overlaps with an orthographic projection of the pixel conductive layer on the base substrate.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: February 11, 2025
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chao Tian, Gang Hua, Zhiyong Wang, Qi Sun, Dong Wang, Meng Gong, Min Wang, Liguang Deng, Zhe Wang, Shaobo Li, Jintang Hu, Pengkai Fan, Shilong Liang
  • Publication number: 20250030951
    Abstract: A technique for image processing, comprising: receiving input image data, wherein the image data is companded into a first bit depth, wherein the image data includes incomplete color values for pixels of the image data, and wherein the image data is associated with a first color space, interpolating the image data to generate color values for the incomplete color values for pixels of the image data, expanding the image data from the first bit depth to a second bit depth, wherein the color values of the expanded image data have a linear dynamic range, and wherein the second bit depth is higher than the first bit depth, converting the color values for pixels of the expanded image data from the first color space to a second color space, and compressing the color values for pixels of the image data to a third bit depth, the third bit depth lower than the second bit depth, and wherein the compressed color values have a nonlinear dynamic range.
    Type: Application
    Filed: October 8, 2024
    Publication date: January 23, 2025
    Inventors: Gang HUA, Mihir Narendra MODY, Niraj NANDAN, Shashank DABRAL, Rajasekhar Reddy ALLU, Denis Roland BEAUDOIN
  • Publication number: 20250030952
    Abstract: Local automatic white balance (AWB) of wide dynamic range (WDR) images is provided. Methods and systems include collecting, by an image signal processor (ISP), statistics for local AWB from at least one wide dynamic range (WDR) image received by the ISP; generating, by a processor, based on the statistics, local gain lookup tables (LUTs), one for each color channel represented in the WDR image(s), each local gain LUT providing a correlation between gain and intensity; and storing the local gain LUTs. Further processing includes, for each of multiple pixels of a WDR image to be output calculating an intensity value, accessing the local gain LUT for the color channel corresponding to that pixel using the calculated intensity value to identify a corresponding local gain value, and applying the local gain value to that pixel.
    Type: Application
    Filed: October 7, 2024
    Publication date: January 23, 2025
    Inventors: Gang Hua, Shashank Dabral, Mihir Narendra Mody, Rajasekhar Reddy Allu, Niraj Nandan
  • Patent number: 12192653
    Abstract: In an advanced driver-assistance system (ADAS), RAW sensor image processing for a machine vision (MV) application is important. Due to different color, e.g., red/green/blue (RGB), color components, being focused by the lens at different locations in image plane, the lateral chromatic aberration phenomenon may sometimes be observed, which causes false color around edges in the final image output, especially for high contrast edges, which can impede MV applications. Disclosed herein are low-latency, efficient, optimized designs for chromatic aberration correction (CAC) components.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: January 7, 2025
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Gang Hua, Rajasekhar Reddy Allu, Mihir Narendra Mody, Niraj Nandan, Mayank Mangla, Pandy Kalimuthu
  • Patent number: 12143729
    Abstract: A technique for image processing, comprising: receiving input image data, wherein the image data is companded into a first bit depth, wherein the image data includes incomplete color values for pixels of the image data, and wherein the image data is associated with a first color space, interpolating the image data to generate color values for the incomplete color values for pixels of the image data, expanding the image data from the first bit depth to a second bit depth, wherein the color values of the expanded image data have a linear dynamic range, and wherein the second bit depth is higher than the first bit depth, converting the color values for pixels of the expanded image data from the first color space to a second color space, and compressing the color values for pixels of the image data to a third bit depth, the third bit depth lower than the second bit depth, and wherein the compressed color values have a nonlinear dynamic range.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: November 12, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Gang Hua, Mihir Narendra Mody, Niraj Nandan, Shashank Dabral, Rajasekhar Reddy Allu, Denis Roland Beaudoin
  • Patent number: 12140835
    Abstract: The embodiments of the present disclosure provide a display substrate, a display panel, and a display device. The display substrate includes: a first base substrate, wherein a plurality of sub-pixel regions arranged in an array are provided on the first base substrate; and a reflective layer provided on one side of the first base substrate, wherein a surface of the reflective layer away from the first base substrate is formed to include a plurality of first bumps and a plurality of second bumps, and the first bump has a size greater than that of the second bump.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: November 12, 2024
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jian Lin, Yong Zhang, Jian Wang, Wei Zhao, Gang Hua, Limin Zhang, Xianglei Qin, Zhichao Yang, Zepeng Sun, Yashuai An, Honggui Jin, Lingfang Nie, Zhilong Duan, Liangzhen Tang, Li Tian, Xinli Ma, Tianyu Xu, Bingyang Liu, Xueqiang Qian, Dongchuan Chen, Kaixuan Wang
  • Patent number: 12143733
    Abstract: Local automatic white balance (AWB) of wide dynamic range (WDR) images is provided. Methods and systems include collecting, by an image signal processor (ISP), statistics for local AWB from at least one wide dynamic range (WDR) image received by the ISP; generating, by a processor, based on the statistics, local gain lookup tables (LUTs), one for each color channel represented in the WDR image(s), each local gain LUT providing a correlation between gain and intensity; and storing the local gain LUTs. Further processing includes, for each of multiple pixels of a WDR image to be output calculating an intensity value, accessing the local gain LUT for the color channel corresponding to that pixel using the calculated intensity value to identify a corresponding local gain value, and applying the local gain value to that pixel.
    Type: Grant
    Filed: April 3, 2023
    Date of Patent: November 12, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Gang Hua, Shashank Dabral, Mihir Narendra Mody, Rajasekhar Reddy Allu, Niraj Nandan
  • Patent number: 12131504
    Abstract: Techniques for image processing including receiving input image data, wherein the input image data includes data associated with a clear color channel, receiving a color offset value associated with a color channel, wherein color values for the color channel are not provided in the input image data, based on the color offset value, generating intermediate estimated color values for the color channel, wherein generating the intermediate estimated color values includes: clipping color values that have a magnitude greater than the color offset value, and adjusting color values that have a magnitude less than the color offset value based on the color offset value, applying a color correction function to the intermediate estimated color values based on the color offset value to determine color corrected estimated color values, and outputting the color corrected estimated color values.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 29, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Gang Hua, Mihir Narendra Mody, Niraj Nandan, Shashank Dabral, Rajasekhar Reddy Allu, Denis Roland Beaudoin
  • Publication number: 20240355301
    Abstract: An electronic paper display device includes a first base substrate, and a plurality of sub-pixels on the first base substrate. Each sub-pixel includes: a first electrode on the first base substrate; a second electrode on the first electrode and including a plurality of grooves passing through thereof, the orthographic projection of the grooves on the first base substrate falling within the orthographic projection of the first electrode on the first base substrate; a microstructure on the side of the second electrode away from the first base substrate and including a paper film microcavity and a plurality of charged particles in the paper film microcavity, where the plurality of charged particles include a plurality of first color charged particles and a plurality of second color charged particles with opposite electrical properties; and a third electrode on the side of the microstructure away from the second electrode.
    Type: Application
    Filed: November 23, 2021
    Publication date: October 24, 2024
    Inventors: Zhe WANG, Guangquan WANG, Liguang DENG, Gang HUA, Dong WANG, Min WANG, Shaobo LI, Jintang HU, Shaokai SU, Jinghao LIU, Liangliang PAN, Jiahao BAI, Zhining LIN, Xinyu CHEN, Zixi QI
  • Publication number: 20240274609
    Abstract: A display substrate includes a base substrate, the base substrate including a display region, and the display region including a plurality of pixel regions; and at least four conductive layers arranged in a stacked manner, located on the base substrate, wherein any two adjacent conductive layers are arranged in an insulated manner, each of the conductive layers includes conductive patterns located in the pixel regions, the conductive patterns of any two adjacent conductive layers in the same pixel region form a storage capacitor (e.g., Cst1, Cst2 and Cst3), and in a direction perpendicular to the base substrate, projections of the at least four conductive layers on the base substrate overlap. A manufacturing method of a display substrate and a display device are further provided.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 15, 2024
    Inventors: Min WANG, Zhe WANG, Gang HUA, Liguang DENG, Dong WANG, Shaobo LI, Jintang HU, Jinghao LIU, Shaokai SU, Liangliang PAN, Jiahao BAI, Zhining LIN, Xinyu CHEN, Zixi QI, Pengqu ZHANG