Patents by Inventor Li Cheng

Li Cheng 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: 20220166241
    Abstract: An electronic device having a universal serial bus (USB) power delivery function includes a connector, an electrostatic discharge (ESD) protection circuit, a power reception notification circuit, and a control circuit. The connector is coupled to a USB host. The connector includes a configuration channel (CC) pin. The power reception notification circuit is configured to turn on, in response to an enable signal, a pull-down path of a pull-down circuit of the ESD protection circuit. The configuration channel pin generates a pull-down voltage through the pull-down path of the pull-down circuit when the pull-down path is turned on. The control circuit is configured to send the enable signal to the power reception notification circuit when a trigger signal that meets a power reception condition is detected. The control circuit controls the connector to draw power from the USB host when the pull-down voltage of the connector is greater than a pull-down threshold.
    Type: Application
    Filed: November 15, 2021
    Publication date: May 26, 2022
    Applicant: REALTEK SEMICONDUCTOR CORP.
    Inventors: Ya-Hsuan Sung, Leaf Chen, Li-Cheng Chu
  • Patent number: 11340393
    Abstract: A backlight module, a method of manufacturing the backlight module, a display device and an illuminating device are disclosed. The backlight module includes: a light guide plate having a first surface and a second surface opposed to each other and at least one side surface between the first surface and the second surface, the side surface being provided with a first light reflecting structure and having an acute angle with respect to the first surface; a light source disposed at a side of the first surface, an orthographic projection of the light source onto the first surface being at an edge portion of the first surface adjacent to the side surface, wherein the light emitted by the light source is at least partially reflected by the first light reflecting structure after entering the light guide plate through the first surface of the light guide plate.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 24, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuezhen Su, Jianming Huang, Dongxi Li, Li Cheng, Weiqiang Li, Yabin Lin, Wanping Pan, Jinshu Wu
  • Patent number: 11320570
    Abstract: A wavelength converting device includes a diffused-reflecting layer, a substrate, and a photoluminescence layer. The diffused-reflecting layer has a first surface and a second surface facing away from the first surface, and the diffused-reflecting layer includes a hydrophilic binder and a lipophilic binder. The substrate is on the first surface of the diffused-reflecting layer. The photoluminescence layer is on the second surface of the diffused-reflecting layer.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 3, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jih-Chi Li, Li-Cheng Yang, Wen-Cheng Huang
  • Patent number: 11316039
    Abstract: A method of manufacturing a semiconductor device is provided. The method includes forming a channel layer and an active layer over a substrate; forming a doped epitaxial layer over the active layer; patterning the doped epitaxial layer, the active layer, and the channel layer to form a fin structure comprising a doped epitaxial fin portion, an active fin portion below the doped epitaxial fin portion, and a channel fin portion below the active fin portion; removing the doped epitaxial fin portion; and forming a gate electrode at least partially extending along a sidewall of the fin structure to form a Schottky barrier between the gate electrode and the fin structure after removing the doped epitaxial fin portion.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 26, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chao-Hsin Wu, Li-Cheng Chang, Cheng-Jia Dai, Shun-Cheng Yang
  • Patent number: 11298764
    Abstract: A circular saw includes a housing, a sawing assembly including a motor and a saw blade located at two opposite sides of the housing and connected together so that the saw blasé can be driven by the motor to saw the workpiece and a saw blade shield secured to the housing and covering a part of the saw blade to prevent the saw blade from cutting the surrounding people, and a prism assembly including a protective cover affixed to the front end of the saw blade shield and a prism located in the protective cover to reflect the image of the saw blade sawing the workpiece through a window of the protective cover to the line of sight of the operator. In this way, the operator can clearly confirm whether the sawing path is skewed with the normal operating posture to improve the efficiency.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: April 12, 2022
    Assignee: DURQ MACHINERY CORP.
    Inventors: Chia-Sheng Liu, Yi-Li Cheng, Wen-Hung Lo
  • Patent number: 11293945
    Abstract: A portable probe stand assembly including a hand-held frame, a gravity tilt unit, and a probe holder. The hand-held frame includes a frame body with a cut-out and two gripping handles. The gravity tilt unit includes a movable part that has a pivot portion rotatably connected to the hand-held frame. The movable part tends to pivot due to gravity to turn the portable probe stand assembly to a hand-held state where a portion of an underside abutting surface of the movable part is disposed out of the cut-out. The portable probe stand assembly is convertible from the hand-held state to a usage state where the movable part is leveled via a pivot movement of the movable part upon engaging the underside abutting surface with a surface of an object.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: April 5, 2022
    Inventors: Kuan-Hung Chen, Li-Cheng Richard Zai
  • Patent number: 11287730
    Abstract: A wavelength device includes a substrate, a photoluminescence layer, a light spot adjusting layer, and a reflecting layer. The photoluminescence layer is disposed over the substrate, and is configured to receive incident light and convert the incident light to excitation light. The light spot adjusting layer is disposed between the substrate and the photoluminescence layer, and is configured to receive the excitation light and the unconverted incident light and to adjust the light path of the excitation light and the unconverted incident light, in which a refractive index of the photoluminescence layer is different from a refractive index of the light spot adjusting layer. The reflecting layer is disposed between the light spot adjusting layer, and is configured to reflect the incident light and the excitation light.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: March 29, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Po-Tsun Kuo, Yen-I Chou, Li-Cheng Yang
  • Patent number: 11287873
    Abstract: A sensing device includes a power supply, a sensing element, a communication element, a controller and a microprocessor. The controller is configured to control the sensing element and the communication element. The microprocessor is configured to be activated from the sleep state periodically according to a time period. The microprocessor is configured to control the power supply to supply power to the controller, the sensing element and the communication element, such that the sensing element senses the environment to acquire a plurality of sensing values. After the communication element transmits the sensing values to a server, the microprocessor controls the power supply to stop supplying power to the controller, the sensing element and the communication element, and also the microprocessor enters the sleep state.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: March 29, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Tsung-Ta Chen, Chien-Li Cheng, Tien-Yu Lin
  • Publication number: 20220087717
    Abstract: The disclosure provides a delivery assistance tool configured to be sleeved on shoulders of a fetus for releasing shoulder dystocia. The delivery assistance tool includes a wrapping part and at least one rope. The wrapping part has two opposite ends fixed to each other so as to form an accommodation space. The accommodation space is configured to accommodate the shoulders, chest, and back of the fetus. The wrapping part has at least one rope channel surrounding the accommodation space. The rope is partially disposed in the rope channel and disposed through two opposite openings of the rope channel so that different parts of the rope are respectively located inside and outside the rope channel. An opening of the accommodation space is adjustable by adjusting the length of the part of the rope in the rope channel.
    Type: Application
    Filed: October 26, 2020
    Publication date: March 24, 2022
    Inventor: Li-Cheng LU
  • Publication number: 20220087716
    Abstract: The disclosure provides a delivery assistance device for vaginal breech delivery. The delivery assistance device is suitable for dealing with a breech fetus delivering from a maternal and configured to be disposed on the fetal head for assisting the fetal head to delivered out of the maternal. The delivery assistance device includes a plurality of segment plates and at least one handle. The segment plates are assembled to become a curved plate configured to be disposed on the fetal head. The handle is disposed at a side of the curved plate and configured to move the curved plate to change a position of the fetal head when an external force is applied thereto, such that the fetus head can be released from the maternal pubis and delivered out of the maternal.
    Type: Application
    Filed: October 21, 2020
    Publication date: March 24, 2022
    Inventor: Li-Cheng LU
  • Patent number: 11278429
    Abstract: An apparatus for controlling a degradation rate of an artificial bone in vitro, a degradation method, and an artificial bone are disclosed. The apparatus includes: a variable resistor; and a wearable component, comprising: a metal wire electrically connected in series with the variable resistor and configured to generate an alternating magnetic field; and an insulating textile layer by which the outside of the metal wire is covered.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: March 22, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Cheng, Jianming Huang, Xiaobo Jia, Wanping Pan, Qiusheng Lin, Ying Wang, Yabin Lin, Weiqiang Li, Aihua Zhu, Xuezhen Su, Hailong Yu, Yifeng Su, Xiaoying Lu
  • Publication number: 20220077347
    Abstract: Disclosed is a multi-quantum well structure including a stress relief layer, an electron-collecting layer disposed on the stress relief layer, and an active layer including a first active layer unit that is disposed on the electron-collecting layer. The first active layer unit includes potential barrier sub-layers and potential well sub-lavers being alternately stacked, in which at least one of the potential barrier sub-layers has a GaN/Alx1Iny1Ga(1-x1-y1)N stack, where 0<x1?1 and 0?y1<1. An LED device including the multi-quantum well structure is also disclosed.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventors: HAN JIANG, YUNG-LING LAN, WEN-PIN HUANG, CHANGWEI SONG, LI-CHENG HUANG, FEILIN XUN, CHAN-CHAN LING, CHI-MING TSAI, CHIA-HUNG CHANG
  • Publication number: 20220058871
    Abstract: Techniques are provided for generating three-dimensional models of objects from one or more images or frames. For example, at least one frame of an object in a scene can be obtained. A portion of the object is positioned on a plane in the at least one frame. The plane can be detected in the at least one frame and, based on the detected plane, the object can be segmented from the plane in the at least one frame. A three-dimensional (3D) model of the object can be generated based on segmenting the object from the plane. A refined mesh can be generated for a portion of the 3D model corresponding to the portion of the object positioned on the plane.
    Type: Application
    Filed: August 20, 2020
    Publication date: February 24, 2022
    Inventors: Ke-Li CHENG, Kuang-Man HUANG, Michel Adib SARKIS, Gerhard REITMAYR, Ning BI
  • Publication number: 20220021382
    Abstract: A PWM-based (pulse width modulation-based) overcurrent protection circuit and an operating method for the same are provided. The PWM-based overcurrent protection circuit includes a pulse-width-modulation circuit that is connected to a charge pump and a load detection circuit of a power-switch circuit. The charge pump outputs a voltage to the power-switch circuit according to a clock-voltage signal. The load detection circuit is used to detect an overcurrent flowing through the power-switch circuit according to a load at an output end of the power-switch circuit. Thus, when the load detection circuit detects the overcurrent, the pulse-width-modulation circuit controls a duty-cycle width of the charge pump, so as to suppress the voltage outputted by the charge pump. Therefore, an output voltage from the power-switch circuit can be corrected for preventing or reducing the overcurrent.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 20, 2022
    Inventor: LI-CHENG CHU
  • Patent number: 11226547
    Abstract: A phosphor wheel includes a substrate and a luminescence layer. The luminescence layer is disposed on the substrate and includes a glue layer, a plurality of scattering particles, and a plurality of first photoluminescence particles. The scattering particles and the first photoluminescence particles are collectively distributed in the glue layer. At least one of the scattering particles is located between the substrate and at least one of the first photoluminescence particles, and at least another of the first photoluminescence particles is located between the substrate and at least another of the scattering particles.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: January 18, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Li-Cheng Yang
  • Patent number: 11214629
    Abstract: The present disclosure discloses a method for preparing short-clustered dextrin, and belongs to the field of bio-modified starch. The method includes: collaboratively modifying to-be-modified starch by adopting Ro-GBE and Gt-GBE. The present disclosure utilizes two starch branching enzymes from different microorganism sources to collaboratively modify corn starch. The Ro-GBE is firstly added for pretreatment, then the Gt-GBE is added. The Ro-GBE catalyzes the to-be-modified starch to form a chain segment structure which is more conducive to further utilization for the Gt-GBE, thin and long starch molecule is transformed into short-clustered structure under the catalysis of Gt-GBE, and thus the slow digestibility of modified products is more obvious.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: January 4, 2022
    Assignee: Jiangnan University
    Inventors: Zhaofeng Li, Zhengbiao Gu, Yang Li, Caiming Li, Li Cheng, Yan Hong
  • Publication number: 20210401017
    Abstract: The disclosure discloses a preparation method of a starch-based double emulsion embedding fat-soluble functional factors, belonging to the technical field of preparation of emulsions. The preparation method of the disclosure includes the following steps: (1) adding a hydrophilic emulsifier into gelatinized starch milk, and uniformly mixing; adding an oil phase containing fat-soluble functional factors and a lipophilic emulsifier, and forming an O1/W starch-based single emulsion embedding fat-soluble functional factors by shearing, where a mass ratio of the hydrophilic emulsifier to the lipophilic emulsifier is 2-3:1-2; and (2) dropwise adding the O1/W starch-based single emulsion embedding fat-soluble functional factors into an oil phase and a lipophilic emulsifier, uniformly mixing, and then allowing the mixture to stand for retrogradation; and obtaining the O1/W/O2 starch-based double emulsion embedding fat-soluble functional factors.
    Type: Application
    Filed: September 6, 2021
    Publication date: December 30, 2021
    Inventors: Yan HONG, Jie YANG, Zhengbiao GU, Li CHENG, Zhaofeng LI, Caiming LI, Xiaofeng BAN
  • Publication number: 20210390789
    Abstract: Systems and techniques are provided for facial image augmentation. An example method can include obtaining a first image capturing a face. Using the first image, the method can determine, using a prediction model, a UV face position map including a two-dimensional (2D) representation of a three-dimensional (3D) structure of the face. The method can generate, based on the UV face position map, a 3D model of the face. The method can generate an extended 3D model of the face by extending the 3D model to include region(s) beyond a boundary of the 3D model. The region(s) can include a forehead region, a region surrounding at least a portion of the face, and/or other region. The method can generate, based on the extended 3D model, a second image depicting the face in a rotated position relative to a position of the face in the first image.
    Type: Application
    Filed: December 1, 2020
    Publication date: December 16, 2021
    Inventors: Peng LIU, Lei WANG, Zhen WANG, Ke-Li CHENG, Ning BI
  • Publication number: 20210390770
    Abstract: Techniques are provided for generating one or more three-dimensional (3D) models. In one example, an image of an object (e.g., a face or other object) is obtained, and a 3D model of the object in the image is generated. The 3D model includes geometry information. Color information for the 3D model is determined, and a fitted 3D model of the object is generated based on a modification of the geometry information and the color information for the 3D model. In some cases, the color information (e.g., determination and/or modification of the color information) and the fitted 3D model can be based on one or more vertex-level fitting processes. A refined 3D model of the object is generated based on the fitted 3D model and depth information associated with the fitted 3D model. In some cases, the refined 3D model can be based on a pixel-level refinement or fitting process.
    Type: Application
    Filed: August 14, 2020
    Publication date: December 16, 2021
    Inventors: Chieh-Ming KUO, Ke-Li CHENG, Michel Adib SARKIS
  • Publication number: 20210379680
    Abstract: A circular includes a housing, a sawing assembly including a motor and a saw blade located at two opposite sides of the housing and connected together so that the saw blasé can be driven by the motor to saw the workpiece and a saw blade shield secured to the housing and covering a part of the saw blade to prevent the saw blade from cutting the surrounding people, and a prism assembly including a protective cover affixed to the front end of the saw blade shield and a prism located in the protective cover to reflect the image of the saw blade sawing the workpiece through a window of the protective cover to the line of sight of the operator. In this way, the operator can clearly confirm whether the sawing path is skewed with the normal operating posture to improve the efficiency.
    Type: Application
    Filed: June 29, 2020
    Publication date: December 9, 2021
    Inventors: Chia-Sheng LIU, Yi-Li CHENG, Wen-Hung LO