Patents by Inventor WEIHUA DU

WEIHUA DU 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: 20240138010
    Abstract: Provided is a method for retrieving a lost-of-contact mobile terminal. The method is applied to a first control terminal, and includes: receiving a first lost-of-contact distress signal a first mobile terminal forwarded by a server; displaying a help seeking interface; sending, in response to a help-retrieving instruction, a first help-retrieving request to the server; and receiving a first confirmation help message from a second control terminal from the server, wherein the first confirmation help message indicates that the second control terminal agrees to help retrieve the first mobile terminal.
    Type: Application
    Filed: September 19, 2022
    Publication date: April 25, 2024
    Inventors: Qianwen JIANG, Yongzhong ZHANG, Hao ZHANG, Lili CHEN, Peng HAN, Huidong HE, Juanjuan SHI, Weihua DU
  • Publication number: 20240091334
    Abstract: The present disclosure provides a combined vaccine against human respiratory syncytial virus (RSV) infection and a method thereof for inducing immune response. The combined vaccine includes; a first composition including an immunologically effective dosage of a replication-deficient human adenovirus type 26 vector contains a nucleotide encoding an antigenic protein of RSV and a pharmaceutically acceptable vector; and a second composition including an immunologically effective dosage of a replication-deficient chimpanzee adenovirus type 63 vector contains a nucleotide encoding an antigenic protein of RSV and a pharmaceutically acceptable vector. The first composition is a primary immunization composition and the second composition is a booster immunization composition, or vice versa. In the present disclosure, the combined vaccine is used for inducing a protective immunity against RSV infection, and a method is provided for generating the protective immunity against RSV infection.
    Type: Application
    Filed: August 11, 2021
    Publication date: March 21, 2024
    Inventors: Jinsheng HE, Lin DU, Yuanhui FU, Weihua ZHU, Xianglei PENG, Bo GAO, Yanpeng ZHENG, Meiqin LIU
  • Publication number: 20240098270
    Abstract: Provided is a method for processing video data. The method includes: acquiring a second outline of at least one object in an (n+1)th image frame of a to-be-compressed video data group based on a fuzzy algorithm; determining a motion vector of the at least one object according to the second outline and a first outline of the at least one object in an nth image frame of the to-be-compressed video data group; acquiring compressed video data according to the motion vector and a start image frame of to-be-compressed video data; and sending the compressed video data to an apparatus for displaying images.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 21, 2024
    Inventors: Huidong HE, Peng HAN, Hao ZHANG, Lili CHEN, Qianwen JIANG, Ruifeng QIN, Juanjuan SHI, Weihua DU
  • Publication number: 20230403382
    Abstract: Provided are a mixed reality display method, a mixed reality device, and a storage medium. The method includes: after receiving a mixed display signal, tracking the eyeballs of a user by means of an eyeball tracker, and determining a gaze point of the user on a display screen; determining, according to a correspondence between the gaze point and a sub-display region in the display screen, the sub-display region the user gazes; determining at least one first image sensor according to a correspondence between the sub-display region and an image sensor in an image sensor array, and adjusting the at least one first image sensor; and superimposing and rendering an environment image output by the image sensor array and a virtual image, and obtaining and displaying an MR image.
    Type: Application
    Filed: December 21, 2020
    Publication date: December 14, 2023
    Inventors: Qianwen JIANG, Hao ZHANG, Lili CHEN, Peng HAN, Huidong HE, Juanjuan SHI, Weihua DU
  • Patent number: 11842673
    Abstract: A control method for display switching, an electronic device, and a storage medium are provided. The control method for display switching includes: establishing a first buffer and a second buffer at a kernel layer and initializing the first buffer; establishing a first service process and a second service process at a user layer, and controlling the first service process to render a first image according to a display parameter of a first buffer and transmit it to a display screen via the first buffer for display; and initializing the second buffer according to a switching instruction, and controlling the second service process to render a second image according to a display parameter of the second buffer and transmit it to the display screen via the second buffer so as to make the display screen switch to displaying the second image.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: December 12, 2023
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Peng Han, Hao Zhang, Lili Chen, Huidong He, Juanjuan Shi, Qianwen Jiang, Weihua Du
  • Publication number: 20230127640
    Abstract: A micro light-emitting diode (LED) includes an n-type layer, a transitional unit, a light-emitting unit disposed on the transitional unit, and a p-type layer disposed on the light-emitting unit. The transitional unit includes a first transitional layer, a second transitional layer and a third transitional layer that are sequentially disposed on the n-type layer in such order. The n-type layer, the first transitional layer, the second transitional layer, the third transitional layer and the light-emitting unit respectively have a bandgap of Egn, a bandgap of Eg1, a bandgap of Eg2, a bandgap of Eg3 and a bandgap of Ega which satisfy a relationship of Egn?Eg1>Eg2>Eg3>Ega.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Inventors: Shuiqing LI, Weihua DU, Chaohsu LAI, Heqing DENG
  • Publication number: 20230006092
    Abstract: A light-emitting structure includes an n-type layer, an active layer, and a p-type layer. The active layer has N quantum well structure periods, each of the N quantum-well structure periods has a well layer and at least one barrier layer. The N quantum-well structure periods include a first light-emitting section and a second light-emitting section. The first light-emitting section is closer to the n-type layer than the second light-emitting section. A method for producing the light-emitting structure, and a light-emitting device that has the light-emitting structure are also disclosed.
    Type: Application
    Filed: September 7, 2022
    Publication date: January 5, 2023
    Inventors: SHUIQING LI, WEIHUA DU, CHAOHSU LAI, HEQING DENG
  • Publication number: 20220130320
    Abstract: A control method for display switching, an electronic device, and a storage medium are provided. The control method for display switching includes: establishing a first buffer and a second buffer at a kernel layer and initializing the first buffer; establishing a first service process and a second service process at a user layer, and controlling the first service process to render a first image according to a display parameter of a first buffer and transmit it to a display screen via the first buffer for display; and initializing the second buffer according to a switching instruction, and controlling the second service process to render a second image according to a display parameter of the second buffer and transmit it to the display screen via the second buffer so as to make the display screen switch to displaying the second image.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 28, 2022
    Inventors: Peng HAN, Hao ZHANG, Lili CHEN, Huidong HE, Juanjuan SHI, Qianwen JIANG, Weihua DU
  • Publication number: 20170148948
    Abstract: A nitride light emitting diode includes: an n-type nitride layer, a light emitting layer and a p-type nitride layer in sequence, wherein, the light emitting layer is a MQW structure composed of a barrier layer and a well layer, in which, an AlGaN electron tunneling layer is inserted into at least one well layer closing to the n-type nitride layer with barrier height greater than that of the barrier layer; in addition, the barriers of the AlGaN electron tunneling layer and the well layer are high enough so that electrons are difficult to transit towards thermionic emission direction, but mainly transit through tunneling in the InGaN well layers, which confines electron mobility and adjusts electron distribution. Hence, electrons have less chance to spill over into the P-type nitride layer.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 25, 2017
    Applicant: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jinjian ZHENG, Feilin XUN, Zhiming LI, Heqing DENG, Weihua DU, Chen-ke HSU, Mingyue WU, Chilun CHOU, Feng LIN, Shuiqing LI, Junyong KANG
  • Publication number: 20170141261
    Abstract: A light emitting diode (LED) includes quantum dots serving as the quantum well layer in the multiple-quantum well (MQW) structure, which can greatly improve the combination efficiency of electrons and holes due to quantum confinement effect; a nanoscale metal reflective layer is formed between the quantum barrier layer with nanoscale pits to instantly reflect the light emitted downwards from the MQW to the front of epitaxial structure; in addition, the nanoscale metal reflective layer can form surface plasmon to further improve light emitting efficiency.
    Type: Application
    Filed: January 28, 2017
    Publication date: May 18, 2017
    Applicant: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jinjian ZHENG, Feilin XUN, Mingyue WU, Jiansen ZHENG, Zhiming LI, Weihua DU, Heqing DENG, Chilun CHOU, Shuiqing LI, Junyong KANG
  • Patent number: 9559261
    Abstract: A nitride layer with embedded hole structure can be used for fabricating GaN-based LED of high external quantum efficiency through epitaxial growth. The approaches can have advantages such as reducing the complexity chip process for forming hole structure, reducing impacts from the chip process on chip reliability, effective reduction of hole structure size and increase of device stability, crush resistance, and reliability. A fabrication method of an underlayer structure with embedded micro-hole structure is also provided.
    Type: Grant
    Filed: June 14, 2015
    Date of Patent: January 31, 2017
    Assignee: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Dongyan Zhang, Jie Zhang, Weihua Du, Xiaofeng Liu, Duxiang Wang
  • Publication number: 20150280069
    Abstract: A nitride layer with embedded hole structure can be used for fabricating GaN-based LED of high external quantum efficiency through epitaxial growth. The approaches can have advantages such as reducing the complexity chip process for forming hole structure, reducing impacts from the chip process on chip reliability, effective reduction of hole structure size and increase of device stability, crush resistance, and reliability. A fabrication method of an underlayer structure with embedded micro-hole structure is also provided.
    Type: Application
    Filed: June 14, 2015
    Publication date: October 1, 2015
    Applicant: XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: DONGYAN ZHANG, JIE ZHANG, WEIHUA DU, XIAOFENG LIU, DUXIANG WANG
  • Patent number: D890450
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 14, 2020
    Assignee: CIXI COUNTY YIBEISI COMMODITY LTD.
    Inventor: Weihua Du
  • Patent number: D985853
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: May 9, 2023
    Assignee: CIXI EBEST COMMODITY CO., LTD.
    Inventor: WeiHua Du
  • Patent number: D1008568
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: December 19, 2023
    Assignee: CIXI EBEST COMMODITY CO., LTD.
    Inventor: Weihua Du