Patents by Inventor Chao Han

Chao Han 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: 11922617
    Abstract: The present application provides a method and system for defect detection. The method includes: acquiring a two-dimensional (2D) picture of an object to be detected; inputting the acquired 2D picture to a trained defect segmentation model to obtain a segmented 2D defect mask, where the defect segmentation model is trained based on a multi-level feature extraction instance segmentation network with intersection over union (IoU) thresholds being increased level by level, and the 2D defect mask includes information about a defect type, a defect size, and a defect location of a segmented defect region; and determining the segmented 2D defect mask based on a predefined defect rule to output a defect detection result.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: March 5, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Annan Shu, Chao Yuan, Lili Han
  • Publication number: 20240045904
    Abstract: A system and method and for searching for an element in and replacement a portion of a video is conducted by retrieving the video and generating a video index for the video, the video index indexing a plurality of elements of the video such as text, audio and video. To search in the vide, a search query is received that includes at least one of a text element, an audio element, an image element, or a video element. Features and embeddings are extracted from the search query before comparing the search query features with the video index to identify a portion of the video that includes one of the text element, audio element, image element or video element of the search query. The identified portion is then automatically replaced with a replacement portion to generate a revised video.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 8, 2024
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Nidhi TIWARI, Chao HAN
  • Publication number: 20240020072
    Abstract: A method of displaying real-time images includes utilizing a document camera for capturing a raw image corresponding to a full range of a target document; detecting an object between the document camera and the target document; determining whether the object is an instruction from a user; and adjusting the raw image to be displayed on a display device according to the instruction.
    Type: Application
    Filed: November 7, 2022
    Publication date: January 18, 2024
    Applicant: Nextedge Labs, Inc.
    Inventor: Chao-Han Chang
  • Publication number: 20230375358
    Abstract: A guide line display method includes: obtaining a first guide line generated at an ith moment and a second guide line generated at an (i+1)th moment; pairing positioning points on the first guide line and the second guide line to obtain k matching point pairs; generating a transition guide line by concatenating k intermediate points of the k matching point pairs, the transition guide line being a guide line that transitions from the first guide line displayed at the (i+1)th moment to the second guide line displayed at an (i+2)th moment; and displaying the transition guide line between the (i+1)th moment and the (i+2)th moment.
    Type: Application
    Filed: July 14, 2023
    Publication date: November 23, 2023
    Inventors: Chao HAN, Lei FENG
  • Publication number: 20230301506
    Abstract: The exemplified systems and methods disclosed herein involve the contemporaneous and concurrent stimulation of both eyes of a patient with dissimilar visual scenes that substantially span an expected or normal visual field of both eyes. During an assessment via the exemplified system and methods, a test eye (i.e., eye being assessed) is presented a visual scene that is rich in contours (e.g., a scene with rich texture patterns) that substantially span an expected or normal visual field of a person while the non-tested eye is presented an impoverished visual scene (e.g., a contour-free or non-distinguishing-contour scene, e.g., with a homogeneous color, with respect to the contour-rich scene). Defects in the visual field can be detected by assessing for breaks or discontinuity in the observation of the contour-rich scene by the person.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 28, 2023
    Inventors: Teng Leng OOI, Chao HAN
  • Patent number: 11730357
    Abstract: The exemplified systems and methods disclosed herein involve the contemporaneous and concurrent stimulation of both eyes of a patient with dissimilar visual scenes that substantially span an expected or normal visual field of both eyes. During an assessment via the exemplified system and methods, a test eye (i.e., eye being assessed) is presented a visual scene that is rich in contours (e.g., a scene with rich texture patterns) that substantially span an expected or normal visual field of a person while the non-tested eye is presented an impoverished visual scene (e.g., a contour-free or non-distinguishing-contour scene, e.g., with a homogeneous color, with respect to the contour-rich scene). Defects in the visual field can be detected by assessing for breaks or discontinuity in the observation of the contour-rich scene by the person.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 22, 2023
    Assignee: Ohio State Innovation Foundation
    Inventors: Teng Leng Ooi, Chao Han
  • Patent number: 11735273
    Abstract: Apparatus and methods for recovery after an abort event are described. A data storage system may comprise a non-volatile memory device, having one or more wordlines configured to receive a read level voltage, and a controller. The controller is configured to detect whether a write abort event occurred for the data storage system. The controller is configured to determine a first voltage offset based on one or more of a wear-level indication of the non-volatile memory device, or one or more voltage parameters of the non-volatile memory device. The controller is configured to determine, based on the first voltage offset, an adjusted read level voltage. The controller is configured to apply the adjusted read level voltage to a wordline of the non-volatile memory device. The controller is configured to read data, based on the applied adjusted read level voltage, from the wordline of the non-volatile memory device.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: August 22, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Mohsen Purahmad, Chao-Han Cheng, Dongxiang Liao, Bo Lei
  • Publication number: 20230255450
    Abstract: The present invention provides a magnetic control device and a magnetically controlled capsule endoscope system. The magnetic control device comprises a mounting base, a base, a magnetic component, a first motor and a second motor. The mounting base is for hoisting the magnetic control device, the base is connected to the mounting base, the magnetic component comprises a magnet for driving the capsule endoscope to rotate, the first motor drives the magnetic component to rotate around a first axis, and the first motor passes through the mounting base and is arranged on the base along a first direction, the second motor drives the magnetic component to rotate around a second axis, the second motor is arranged on the base, and the first axis intersects the second axis. By reasonably utilizing a mounting space of the magnetic control device, the structure is more compact, small and convenient to move.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 17, 2023
    Applicants: Ankon Medical Technologies(Shanghai) Co., LTD., ANX IP HOLDING PTE. LTD.
    Inventors: Chao HAN, Shaobang ZHANG, Xiaodong Duan
  • Publication number: 20230246297
    Abstract: Disclosed is a lithium battery separator including a porous PVDF-based resin coating, wherein the porous PVDF-based resin coating is located on at least one surface of a base film, and the porous PVDF-based resin coating on a single side has a thickness of 0.5-3.5 ?m, and has a ratio of a bonding strength (N/m) to coating air permeability increment (s/100 cc) of greater than or equal to 0.25, and a ratio of a bonding strength (N/m) to a surface density per unit coating (g/m2/?m) of greater than or equal to 10, resulting in a porous PVDF-based resin coating with excellent thickness, coating air permeability increment, bonding strength and thermal shrinkage; and the formed lithium battery separator is also excellent in cycling performance and heat resistance.
    Type: Application
    Filed: December 31, 2021
    Publication date: August 3, 2023
    Applicant: SINOMA LITHIUM BATTERY SEPARATOR CO., LTD.
    Inventors: Yaozong BAI, Pingchuan MA, Gaojun LIU, Feifei GAO, Jingran DU, Xujie ZHANG, Yang ZHOU, Mengmeng ZHAI, Chao HAN, Ming WEI, Sen ZHANG, Yuan SUN
  • Publication number: 20230219100
    Abstract: A coarse coal slime classifying system and method are disclosed. The system includes: a coal slime bucket, an arc-shaped sieve, a hydraulic classifying cyclone, a coal slime centrifuge, and a coal slime chute. The coal slime bucket is connected to a coal slime water incoming pipe. The hydraulic classifying cyclone is connected to the arc-shaped sieve and the coal slime bucket. The arc-shaped sieve is connected to the coal slime bucket and the coal slime centrifuge. The coal slime centrifuge is connected to the coal slime chute and the coal slime bucket. The coal slime bucket, arc-shaped sieve, hydraulic classifying cyclone, coal slime centrifuge, and coal slime chute are arranged to classify coarse coal slime, which improves the product quality and the yield. The system is simple in overall structure, convenient to maintain, and low in cost.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 13, 2023
    Inventors: Jitu Yu, Chao Han, Changzeng Sheng, Xuexin Qu, Guofeng Ran
  • Publication number: 20230210075
    Abstract: The present invention relates to nucleic acid sequences for detecting soybean plant DBN8002 and detection methods thereof, wherein said nucleic acid sequences comprise SEQ ID NO: 1 or a complementary sequence thereof, and/or SEQ ID NO: 2 or a complementary sequence thereof. The soybean plant DBN8002 of the present invention has good resistance against Lepidoptera insects as well as good tolerance to glufosinate herbicide without compromising the yield, and the detection methods can accurately and rapidly identify whether a biological sample contains the DNA molecule of the transgenic soybean event DBN8002.
    Type: Application
    Filed: August 9, 2019
    Publication date: July 6, 2023
    Inventors: Chao Han, Caihong Yu, Xiangting Xie, Dengyuan Wang, Shujing Yang, Guangdong Cui, Yuejing Kang, Xiaoming Bao
  • Publication number: 20230156063
    Abstract: Methods, systems, and computer storage media for providing a tailored meeting-video segment associated with a meeting-video management engine of a meeting-video management system. The tailored meeting-video segment corresponds to a portion of meeting-video content that is programmatically generated based on features associated with video data, meeting data, and user data. A tailored meeting-video segment—or a plurality of tailored meeting-video segments—can be generated by employing a meeting-video tailoring machine learning model of the meeting-video management engine. In particular, the features—associated with video data comprising the plurality of clips, meeting data of the meeting, and user data of the user—are meeting-video tailoring features used by the meeting-video tailoring machine learning model to generate the tailored meeting-video segment.
    Type: Application
    Filed: November 16, 2021
    Publication date: May 18, 2023
    Inventors: Nidhi TIWARI, Chao HAN, Krish GURDASANI
  • Publication number: 20230147801
    Abstract: A facial tracking device including an illuminator and a photon detector. The illuminator configured to project a light toward a first portion of a head of a user and the photon detector configured to detect light reflected from a second portion of the head of the user. The facial tracking device further including a processor that is connected to the illuminator and photon detector and configured to cause the illuminator to project the light toward the head of the user, receive information from the photon detector, and determine a facial expression of the user.
    Type: Application
    Filed: October 10, 2022
    Publication date: May 11, 2023
    Inventors: Manoj Bikumandla, Chao Han
  • Patent number: 11619074
    Abstract: A security device for mounting over the neck of a bottle having an exterior lip has outer cap structure including an annular housing portion (16) for location about the neck of a bottle and an end cap portion (18) at one end of the annular housing portion. A claw member (14) is slidably mounted to the outer cap structure for movement in a direction parallel to a longitudinal axis of the annular housing portion between operative and inoperative positions. A latch mechanism (60) releasably secures the claw member in the operative position. The claw member has a plurality of resiliently deformable elongate claws (52a, 52b) for engagement with the neck of a bottle to which the device is mounted when the claw member is in the operative position. The claw member comprises at least two sets of claws (52a, 52b) of different lengths. The latch mechanism (60) may be a magnetically-releasable latch enabling the device to be removed using a magnetic key. The device may incorporate a RF or RFID tag.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: April 4, 2023
    Inventors: Omar Yasin, Chao Han
  • Publication number: 20230018285
    Abstract: Embodiments of the present disclosure relate to device, method, device and computer readable storage media of beam-forming scheme in higher rank transmission for massive multiple input multiple output system. The method comprises determining a target beam for carrying a transmission of a reference signal from the base station to the user equipment; determining a target arrangement of the plurality of ports formed at an antenna array of the base station; and transmitting, to the user equipment, different portions of the target beam through a plurality of ports based on the target arrangement. In this way, a new beamforming method when Massive-MIMO choose higher rank transmission in multi ports communication system is proposed. The gNB would only select the best beam with different halves in the same polarization to keep the QCL principles.
    Type: Application
    Filed: September 1, 2020
    Publication date: January 19, 2023
    Inventors: Di LIU, Chao HAN, Pengpeng SONG, Lili WANG
  • Publication number: 20220407987
    Abstract: A camera module includes an image sensor, a lens assembly, a printed circuit board, and a substrate. The image sensor has edges that define a two-dimensional footprint substantially parallel to a surface of the image sensor. The lens assembly is coupled to a top surface of the image sensor and focuses light onto the top surface of the image sensor. Edges of the lens assembly do not extend beyond the footprint. The printed circuit board is below the image sensor and controls the image sensor. The substrate is coupled to a bottom surface of the image sensor and to a top surface of the printed circuit board. The substrate electrically couples the image sensor to the printed circuit board. Edges of the substrate do not extend beyond the footprint.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 22, 2022
    Inventors: Chao Han, Eddie Alex Azuma, Manoj Bikumandla, Rajendra D. Pendse, Cina Hazegh
  • Patent number: 11467659
    Abstract: A facial tracking device including an illuminator and a photon detector. The illuminator configured to project a light toward a first portion of a head of a user and the photon detector configured to detect light reflected from a second portion of the head of the user. The facial tracking device further including a processor that is connected to the illuminator and photon detector and configured to cause the illuminator to project the light toward the head of the user, receive information from the photon detector, and determine a facial expression of the user.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Manoj Bikumandla, Chao Han
  • Publication number: 20220148659
    Abstract: Apparatus and methods for recovery after an abort event are described. A data storage system may comprise a non-volatile memory device, having one or more wordlines configured to receive a read level voltage, and a controller. The controller is configured to detect whether a write abort event occurred for the data storage system. The controller is configured to determine a first voltage offset based on one or more of a wear-level indication of the non-volatile memory device, or one or more voltage parameters of the non-volatile memory device. The controller is configured to determine, based on the first voltage offset, an adjusted read level voltage. The controller is configured to apply the adjusted read level voltage to a wordline of the non-volatile memory device. The controller is configured to read data, based on the applied adjusted read level voltage, from the wordline of the non-volatile memory device.
    Type: Application
    Filed: January 20, 2022
    Publication date: May 12, 2022
    Inventors: Mohsen PURAHMAD, Chao-Han CHENG, Dongxiang LIAO, Bo LEI
  • Patent number: 11316052
    Abstract: A junction barrier schottky (JBS) diode is provided and includes: a bottom metal layer, a N+-type substrate layer and a N?-type epitaxial layer sequentially arranged in that order from bottom to top, P-type ion injection regions are disposed on an upper surface of the N?-type epitaxial layer, distances of the P-type ion injection regions are gradually increased along a direction from an edge to a center of the JBS diode; an isolation dielectric layer is arranged on a periphery of the upper surface of the N?-type epitaxial layer, an top metal layer is arranged on the upper surface of the N?-type epitaxial layer and an upper surface of the isolation dielectric layer and further is in contact with the P-type ion injection regions. The JBS diode can effectively inhibit an occurrence of local electromigration and improve a device reliability.
    Type: Grant
    Filed: May 9, 2020
    Date of Patent: April 26, 2022
    Assignee: XIDIAN UNIVERSITY
    Inventors: Qingwen Song, Xiaoyan Tang, Yuming Zhang, Hao Yuan, Chao Han
  • Patent number: D1013017
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: January 30, 2024
    Assignee: Nextedge Labs, Inc.
    Inventor: Chao-Han Chang