Patents by Inventor Biao Xu

Biao Xu 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: 11914110
    Abstract: The disclosure discloses a photographic optical system, sequentially includes from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. Wherein the first lens has a positive refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The second lens has a negative refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The sixth lens has a negative refractive power. TTL is a distance from the object-side surface of the first lens to an imaging surface of the photographic optical system on the optical axis and ImgH is a half the diagonal length of an effective pixel area on the imaging surface of the photographic optical system, and TTL and ImgH satisfy TTL/ImgH<1.5.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: February 27, 2024
    Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.
    Inventors: Kaiyuan Zhang, Biao Xu, Lin Huang
  • Patent number: 11867880
    Abstract: The present disclosure discloses an optical imaging system, sequentially from an object side to an image side of the optical imaging system along an optical axis, including: a first lens having refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having positive refractive power; a fifth lens having refractive power; a sixth lens having refractive power; and a seventh lens having refractive power, a concave object-side surface, and a concave image-side surface. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging system may satisfy ImgH>6.0 mm. A total effective focal length f of the optical imaging system and an entrance pupil diameter EPD of the optical imaging system may satisfy f/EPD<1.9.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 9, 2024
    Assignee: Zhejiang Sunny Optical Co., Ltd
    Inventors: Xiaofang Wang, Biao Xu, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
  • Patent number: 11862411
    Abstract: A membrane circuit board includes a first membrane substrate, a spacer substrate, a second membrane substrate and a third membrane substrate. The first membrane substrate includes a first gas channel and a first conductive contact. The spacer substrate includes a first gas hole and a second gas hole. The second membrane substrate includes a second gas channel, a second conductive contact, a third gas hole and a fourth gas hole. The second gas channel is in communication with the third gas hole and the fourth gas hole. The second gas channel is in communication with the first gas channel through the first gas hole and the second gas hole. The third membrane substrate includes a third gas channel. The third gas channel is in communication with the second gas channel through the third gas hole and the fourth gas hole.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: January 2, 2024
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Chuang-Shu Jhuang, De-Guang Zhu, Rong-Biao Xu
  • Publication number: 20230395339
    Abstract: A membrane circuit board includes a first membrane substrate, a spacer substrate, a second membrane substrate and a third membrane substrate. The first membrane substrate includes a first gas channel and a first conductive contact. The spacer substrate includes a first gas hole and a second gas hole. The second membrane substrate includes a second gas channel, a second conductive contact, a third gas hole and a fourth gas hole. The second gas channel is communication between the third gas hole and the fourth gas hole. The second gas channel is in communication with the first gas channel through the first gas hole and the second gas hole. The third membrane substrate includes a third gas channel. The third gas channel is in communication with the second gas channel through the third gas hole and the fourth gas hole.
    Type: Application
    Filed: July 15, 2022
    Publication date: December 7, 2023
    Inventors: Chuang-Shu Jhuang, De-Guang Zhu, Rong-Biao Xu
  • Patent number: 11768706
    Abstract: The aspects of the present disclosure provide a method and an apparatus for implementing hardware resource allocation. For example, the apparatus includes processing circuitry. The processing circuitry obtains a first value that is indicative of an allocable resource quantity of a hardware resource in a computing device. The processing circuitry also receives a second value that is indicative of a requested resource quantity of the hardware resource by a user, and then determines whether the second value is greater than the first value. When the second value is determined to be less than or equal to the first value, the processing circuitry requests the computing device to allocate the hardware resource of the requested resource quantity to the user, and subtracts the second value from the first value to update the allocable resource quantity of the hardware resource in the computing device.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: September 26, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Guwu Yi, Biao Xu, Fan Yang, Jue Wang, Rui Yang
  • Patent number: 11768353
    Abstract: An optical imaging system includes an optical lens group including, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens, and a fourth lens; a lens barrel, the optical lens group is accommodated in the lens barrel; and a plurality of spacers including at least two spacers disposed between the third lens and the fourth lens; the diameter D of the lens barrel at an end towards the object side and a maximum effective radius DT11 of an object-side surface of the first lens satisfy 2×DT11/D?0.5.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: September 26, 2023
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Xiaofang Wang, Guijie Zhu, Biao Xu, Qi Chen, Kaiyuan Zhang, Fujian Dai, Liefeng Zhao
  • Publication number: 20230218178
    Abstract: A construction method and an application of a digital human cardiovascular system based on hemodynamics are provided, the construction method comprising: partitioning various parts of a human body according to a distributed hemodynamic monitoring system, and determining granularity of a digital human model system; constructing an arterial blood flow transmission equation based on an elastic tube model for arteries, and defining physiological significance for characteristic values of the equation; inputting signals, characteristic values and hemodynamic parameters acquired by the distributed hemodynamic monitoring system into the digital human model system; and obtaining a dynamic and distributed digital human cardiovascular system through finite element calculation. An individual dynamic digital human model based on hemodynamics is constructed through the distributed characteristic values of various parts of the human body and the calculated hemodynamic parameters.
    Type: Application
    Filed: July 6, 2021
    Publication date: July 13, 2023
    Applicant: NANJING UNIVERSITY
    Inventors: Fei XU, Hengtian ZHU, Ye CHEN, Liuwei ZHAN, Biao XU, Qing DAI
  • Patent number: 11610548
    Abstract: The present application discloses a method, a device, a display device and a medium for improving OLED residual images. The method for improving OLED residual images includes obtaining a life attenuation rate relationship and a life attenuation degree relationship of an OLED display panel, dividing a display area of the display panel into a plurality of sub-areas to monitor temperature change and gray scale change of each sub-area respectively, obtaining a temperature value and a gray scale value of each sub-area at a current moment, calculating a current life attenuation rate according to the temperature value and the gray scale value, and calculating a current luminous time of each sub-area, calculating a life attenuation degree of each sub-area according to the current luminous time of each sub-area, and performing pixel compensation to each sub-area respectively according to the current life attenuation degree of each sub-area.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: March 21, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Biao Xu, Pohsien Wu, Shuang Zhao
  • Patent number: 11598934
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power with a convex object-side surface; a sixth lens having positive refractive power with a convex object-side surface a convex image-side surface; and a seventh lens having negative refractive power, wherein a distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens assembly satisfy ImgH/(TTL/ImgH)>5.0 mm.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: March 7, 2023
    Assignee: Zhejiang Sunny Optical Co., Ltd
    Inventors: Chen Chen, Kaiyuan Zhang, Biao Xu, Fujian Dai, Liefeng Zhao
  • Patent number: 11573398
    Abstract: The present disclosure discloses an optical imaging lens group including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power with a convex object-side surface; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and a sixth lens having negative refractive power with a concave object-side surface and a convex image-side surface. A total effective focal length f of the optical imaging lens group, an entrance pupil diameter EPD of the optical imaging lens group and half of a maximal field-of-view Semi-FOV of the optical imaging lens group satisfy: f/EPD<2, and f*tan(Semi-FOV)>4.5 mm.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: February 7, 2023
    Assignee: Zhejiang Sunny Optical Co., Ltd.
    Inventors: Biao Xu, Kaiyuan Zhang, Xiaofang Wang, Fujian Dai, Liefeng Zhao
  • Patent number: 11550123
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has a positive refractive power, and an object-side surface thereof is a convex surface and an image-side surface thereof is a concave surface; the second lens has a negative refractive power, and an image-side surface thereof is a concave surface; the third lens has a positive refractive power or a negative refractive power; the fourth lens has a negative refractive power; the fifth lens has a positive refractive power, and an image-side surface thereof is a convex surface; the sixth lens has a negative refractive power, and both of an object-side surface and an image-side surface thereof are concave surfaces.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: January 10, 2023
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD.
    Inventor: Biao Xu
  • Patent number: 11532445
    Abstract: A key structure includes a keycap, a base plate and a supporting element. The supporting element includes a first frame and a second frame. The supporting element is connected with the keycap and the base plate. Consequently, the keycap is movable upwardly or downwardly relative to the base plate. When the first frame and a second frame are combined together, a first span and a second span are formed sequentially. The second span is smaller than the first frame.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: December 20, 2022
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: De-Guang Zhu, Rong-Biao Xu
  • Publication number: 20220376524
    Abstract: A charging base with a replaceable terminal element for an electric vehicle includes a fixing component and a replaceable terminal element that cooperate with each other. A DC replaceable terminal assembly includes a plastic sheath, insertion grooves and a sheath base connected to each other. A terminal is connected inside each of the insertion grooves. The sheath base is connected to the fixing component. A lower part of the terminal is provided with a knurled structure, and a lower end of the terminal is connected to the jack socket of the fixing component. A bottom part of the sheath base is provided with a waterproof groove and a terminal protection ring. A sealing gasket is connected in the waterproof groove, and has through holes.
    Type: Application
    Filed: November 30, 2021
    Publication date: November 24, 2022
    Applicants: Wanbang Digital Energy Co., Ltd., Wanbang Star Charge Technology Ltd.
    Inventors: Biao Xu, Chieh-Kai Chen, Pengyun Li
  • Publication number: 20220365317
    Abstract: The disclosure provides an optical imaging lens assembly, wherein the optical imaging lens assembly sequentially includes the followings from an object side to an image side along an optical axis: a first lens having a positive focal power, wherein an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a second lens having a focal power; a third lens having a focal power; a fourth lens having a focal power; a fifth lens having a focal power; a sixth lens having a positive focal power; and a seventh lens having a negative focal power, wherein an object-side surface thereof is a concave surface, and an image-side surface thereof is a concave surface. DT11, DT12 and ImgH meet:2.4<(DT11+DT12)/lmgHx5<2.7.
    Type: Application
    Filed: September 3, 2020
    Publication date: November 17, 2022
    Inventors: Chen CHEN, Kaiyuan ZHANG, Biao XU, Fujian DAI, Liefeng ZHAO
  • Patent number: 11493731
    Abstract: An optical imaging lens assembly from an object side to an image side along an optical axis sequentially includes: a first lens, having a positive refractive power, its object-side surface is convex and its image-side surface is concave; a second lens, having a refractive power, its object-side surface is convex and its image-side surface is concave; a third lens, having a refractive power; a fourth lens, having a refractive power and its object-side surface is concave; a fifth lens, having a positive refractive power, its object-side surface is concave and its image-side surface is convex; and a sixth lens, having a negative refractive power and its object-side surface is concave. A total effective focal length f of the optical imaging lens assembly and a radius of curvature R12 of an image-side surface of the sixth lens satisfy: 0?f/R12?1.5.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 8, 2022
    Inventors: Kaiyuan Zhang, Biao Xu, Bo Song
  • Patent number: 11493733
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens. The first lens has a positive refractive power; the second lens has a negative refractive power; the third lens has a positive or negative refractive power; the fourth lens has a positive refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a convex surface; the fifth lens has a positive or negative refractive power, and an image-side surface thereof is a concave surface; the sixth lens has a positive or negative refractive power; the seventh lens has a positive refractive power; and the eighth lens has a negative refractive power.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 8, 2022
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD.
    Inventors: Biao Xu, Kaiyuan Zhang
  • Patent number: 11422341
    Abstract: A camera lens assembly, sequentially from an object side to an image side along an optical axis, includes: a first lens having a negative refractive power; a second lens having a positive refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a third lens having a positive refractive power, and an object-side surface thereof is a convex surface; a fourth lens having a negative refractive power, and an image-side surface thereof is a concave surface; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power, and at least one of an object-side surface and an image-side surface thereof has an inflection point. Half of a maximal field-of-view HFOV of the camera lens assembly satisfies: HFOV?55°.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: August 23, 2022
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Yuanlin Jia, Kaiyuan Zhang, Biao Xu
  • Publication number: 20220230589
    Abstract: The present application discloses a method, a device, a display device and a medium for improving OLED residual images. The method for improving OLED residual images includes obtaining a life attenuation rate relationship and a life attenuation degree relationship of an OLED display panel, dividing a display area of the display panel into a plurality of sub-areas to monitor temperature change and gray scale change of each sub-area respectively, obtaining a temperature value and a gray scale value of each sub-area at a current moment, calculating a current life attenuation rate according to the temperature value and the gray scale value, and calculating a current luminous time of each sub-area, calculating a life attenuation degree of each sub-area according to the current luminous time of each sub-area, and performing pixel compensation to each sub-area respectively according to the current life attenuation degree of each sub-area.
    Type: Application
    Filed: September 28, 2021
    Publication date: July 21, 2022
    Inventors: Biao XU, Pohsien WU, Shuang ZHAO
  • Patent number: 11385439
    Abstract: The present disclosure discloses an imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. Here, the first lens has a positive refractive power, and an object-side surface thereof is a convex surface, and an image-side surface thereof is also a convex surface; the second lens has a negative refractive power; the third lens has a positive refractive power, and an object-side surface thereof is a concave surface; the fourth lens has a positive refractive power; the fifth lens has a negative refractive power and an object-side surface thereof is a concave surface and an image-side surface thereof is a concave surface; and the imaging lens assembly satisfies 3?T34/T23 ?7.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: July 12, 2022
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD.
    Inventors: Biao Xu, Kaiyuan Zhang, Lin Huang
  • Patent number: RE49789
    Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has a positive refractive power and a convex object-side surface. The second lens has a negative refractive power. The third lens has a positive refractive power. Each of the fourth lens and the fifth lens has a positive refractive power or a negative refractive power. The sixth lens has a positive refractive power. The seventh lens has a negative refractive power, a concave object-side surface and a concave image-side surface. A combined focal length f12 of the first and second lenses and a combined focal length f34 of the third and fourth lenses satisfy:|f12/f34|?0.3.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: January 2, 2024
    Assignee: Zhejiang Sunny Optical Co., Ltd
    Inventors: Biao Xu, Kaiyuan Zhang, Jianke Wenren