Patents by Inventor Jianhua Chen

Jianhua Chen 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: 20250070546
    Abstract: A terminal assembly, arranged for an automobile harness, comprising: a substrate; a modified terminal, arranged as a plate structure that is arranged on the substrate and extends perpendicularly with respect to a plane of the substrate; and a resettable fuse component, the resettable fuse component comprising a polymer positive temperature coefficient (PPTC) material, and coupled in series with the modified terminal.
    Type: Application
    Filed: August 22, 2024
    Publication date: February 27, 2025
    Applicant: Littelfuse, Inc.
    Inventors: Yan Fang, Jianhua Chen, Jun Gang Wang
  • Publication number: 20250062090
    Abstract: The present disclosure relates to a fast mechanical switch and an operating method, wherein the fast mechanical switch comprises: a closed housing; a vacuum interrupter; an electromagnetic repulsion mechanism disposed below the vacuum interrupter, wherein the electromagnetic repulsion mechanism has: a first repulsion unit electrically connected to a first electrical terminal; a second repulsion unit electrically connected to a second electrical terminal independent of the first electrical terminal and comprising a third repulsion disk located below and spaced apart from the second repulsion disk, wherein the second electrical terminal is constructed to operatively control the third repulsion disk responsive to the first repulsion unit such that the third repulsion disk applies a resistance to the second repulsion disk when the second repulsion disk is moved downwardly for opening and applies an thrust to the second repulsion disk when it is moved upwardly for closing.
    Type: Application
    Filed: August 13, 2024
    Publication date: February 20, 2025
    Inventors: Shunfeng Guo, Hui Zhou, Wenzhe Fan, Jianhua Chen, Zhengning Hu
  • Patent number: 12224633
    Abstract: A auxiliary device for bonding a casing and magnets, comprising a press (10) and a housing positioning seat (2), the press (10) including a press block (12). A vertically arranged raising and lowering rod (3) is provided below the press block (12), the raising and lowering rod (3) being supported on the housing positioning seat (2) by means of an elastic piece. A plurality of push plates (4) are provided on the circumferential side of the raising and lowering rod (3), the push plates (4) being slidingly mated on the housing positioning seat (2) along the radial direction of the raising and lowering rod (3). The raising and lowering rod (3) moves up and down in order to cause the push plates (4) to move in the radial direction of the raising and lowering rod (3), and the sides of the push plates (4) away from the raising and lowering rod (3) are provided with contact faces used to make contact with magnets.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 11, 2025
    Assignee: HENGDIAN GROUP INNUOVO ELECTRIC CO., LTD.
    Inventors: Zhonghua Wei, Kedi Shan, Junjian Lu, Jianhua Chen, Hangdong Tang
  • Publication number: 20250014788
    Abstract: A self-limiting heater and method for building the self-limiting heater are disclosed. The self-limiting heater consists of a resistor and a PTC resistor coupled together in series with a power supply. Both resistive devices have good thermal coupling. The resistor has a low temperature coefficient while the resistance of the PTC resistor increases with an increase in temperature. The ohmic resistance ratio between the resistor and the PTC may be used to adjust the heater characteristics and limit the characteristic sharpness.
    Type: Application
    Filed: September 20, 2024
    Publication date: January 9, 2025
    Applicant: Littelfuse, Inc.
    Inventors: Efrem Fesshaie, Paulius Kabisius, Jianhua Chen, Rimantas Misevicius
  • Publication number: 20240413586
    Abstract: An electrical connector assembly includes an electrical connector and a liquid cooling plate. The electrical connector includes a metal shielding cage. The liquid cooling plate includes a cooling liquid inlet and a cooling liquid outlet. The liquid cooling plate includes a liquid cooling base plate and a cover plate fixed on the liquid cooling base plate. The liquid cooling base plate includes a first inlet flow channel, a second inlet flow channel and an outlet flow channel. The first inlet flow channel and the second inlet flow channel are arranged in parallel, and communicate with the cooling liquid inlet. The first inlet flow channel and the second inlet flow channel converge into the outlet flow channel. The outlet flow channel communicates with the cooling liquid outlet. As a result, the heat dissipation performance of the electrical connector assembly is improved.
    Type: Application
    Filed: January 30, 2024
    Publication date: December 12, 2024
    Applicant: LUXSHARE THERMAL TECHNOLOGIES (HUIZHOU) CO., LTD
    Inventors: Tao SUN, Jun ZHAO, Jianhua CHEN, Jiarong LI
  • Patent number: 12150276
    Abstract: Disclosed is an immersed cabinet, which includes a cabinet body and a heat sink assembly, wherein the heat sink assembly is in sealed connection with the cabinet body and configured to seal an opening of the cabinet body. The cabinet body accommodates a plurality of devices to be cooled, and cooling liquid is put in the cabinet body and used for immersing the plurality of devices to be cooled. The cooling liquid absorbs heat generated by the plurality of devices to be cooled and then is vaporized. The heat sink assembly exchanges heat with the vaporized cooling liquid, so that the vaporized cooling liquid condenses and flows back to the cabinet body for circulation, and the heat sink assembly dissipates the heat into the atmosphere. Therefore, the heat dissipation structure design of the immersed cabinet is effectively simplified.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: November 19, 2024
    Assignee: DONGGUAN LUXSHARE TECHNOLOGIES CO., LTD
    Inventors: PengFei Wang, JianHua Chen, Jun Zhao, WenHe Li, JiaRong Li
  • Publication number: 20240371549
    Abstract: A pre-charge circuit. The precharge circuit may include a switching device for controlling a voltage to be supplied to a battery; and a heterogeneous thermistor circuit, coupled to the switching device. The heterogeneous thermistor circuit may include a negative temperature coefficient (NTC) component; and a polymer positive temperature coefficient (PPTC) component, arranged in electrical series with the NTC component and the switching device.
    Type: Application
    Filed: May 1, 2024
    Publication date: November 7, 2024
    Applicant: Littelfuse, Inc.
    Inventors: Tao Guo, TongKiang Poo, Jianhua Chen, Sky Chen
  • Patent number: 12125619
    Abstract: A self-limiting heater and method for building the self-limiting heater are disclosed. The self-limiting heater consists of a resistor and a PTC resistor coupled together in series with a power supply. Both resistive devices have good thermal coupling. The resistor has a minimal resistance change over changes in temperature while the resistance of the PTC resistor increases with an increase in temperature. The ohmic resistance ratio between the resistor and the PTC may be used to adjust the heater characteristics and limit the characteristic sharpness.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: October 22, 2024
    Assignee: Littelfuse, Inc.
    Inventors: Efrem Fesshaie, Paulius Kabisius, Jianhua Chen, Rimantas Misevicius
  • Publication number: 20240340415
    Abstract: A time-domain filtering method is provided, including: determining a to-be-filtered image frame in a group of pictures; extracting a relative motion feature of the to-be-filtered image frame, where the relative motion feature represents relative motion complexity between image contents of the to-be-filtered image frame and image contents of the remaining image frames in the group of pictures; and determining a target filtering magnitude corresponding to the relative motion feature, and performing time-domain filtering on the to-be-filtered image frame by using the target filtering magnitude.
    Type: Application
    Filed: April 3, 2024
    Publication date: October 10, 2024
    Inventors: Shengyang XU, Jianhua CHEN, Yan YE
  • Publication number: 20240333958
    Abstract: A motion compensation method, includes acquiring a motion vector of an initial search point in a reference frame of an adjacent block to a to-be-processed block in a to-be-processed image and a motion vector of the adjacent block; determining a search range in the reference frame based on the motion vector of the initial search point and the motion vector of the adjacent block; determining a target pixel in the search range; and performing motion compensation on the to-be-processed block based on the motion vector of the target pixel.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Inventors: Shuqing Fang, Jianhua Chen, Yan YE
  • Publication number: 20240333939
    Abstract: A motion compensation method, includes: acquiring a plurality of matching costs between a to-be-processed block and a plurality of first pixel blocks, the plurality of first pixel blocks corresponding to a plurality of integer pixels within a search range in a reference frame; based on the plurality of matching costs, estimating matching costs between the to-be-processed block and a plurality of second pixel blocks to obtain a plurality of approximate matching costs, the plurality of second pixel blocks corresponding to a plurality of sub-pixels within the search range in the reference frame; and performing motion compensation on the to-be-processed block according to the plurality of matching costs and the plurality of approximate matching costs.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Inventors: Shuqing Fang, Jianhua Chen, Yan YE
  • Publication number: 20240323369
    Abstract: Embodiments of the present disclosure provide a loop filtering method, including: determining a reference image block corresponding to a to-be-processed image block in an adjacent reference frame in a time domain, and predicting the loop filtering enabling probability of the to-be-processed image block based on the result of loop filtering of the reference image block; determining spatial coding information of the to-be-processed image block, the spatial coding information being used to characterize texture complexity of the to-be-processed image block; and making a loop filtering decision for the to-be-processed image block in response to the spatial coding information and the loop filtering enabling probability meeting preset filtering conditions.
    Type: Application
    Filed: March 11, 2024
    Publication date: September 26, 2024
    Inventors: Liangwei Yu, Jianhua Chen, Yan Ye
  • Publication number: 20240323452
    Abstract: Embodiments of the present disclosure provide a pixel value mapping method, including: determining a to-be-processed image and a mapping table corresponding to the to-be-processed image; performing a table lookup on pixel values of multiple pixels in the to-be-processed image according to the mapping table in parallel to obtain mapped values each corresponding to a pixel of the multiple pixels; and determining a mapped image corresponding to the to-be-processed image according to the mapped values obtained based on the table lookup.
    Type: Application
    Filed: March 12, 2024
    Publication date: September 26, 2024
    Inventors: Zhiwei Huang, Jianhua Chen, Yan Ye
  • Publication number: 20240312211
    Abstract: A method for frame extraction processing of a video includes obtaining an encoded image of a video sequence; obtaining presentation time stamps (PTSes) and non-reference frame flags of the encoded image, wherein the encoded image has an encoding structure with time domain levels; determining frame dropping positions of the video sequence based on the time domain levels, the PTSes, and the non-reference frame flags; and performing a frame extraction operation on the video sequence based on the frame dropping positions.
    Type: Application
    Filed: February 9, 2024
    Publication date: September 19, 2024
    Inventors: Jianhua CHEN, Yan YE
  • Publication number: 20240300082
    Abstract: A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The switch fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the switch fork relative to the selector switch into a neutral position.
    Type: Application
    Filed: May 14, 2024
    Publication date: September 12, 2024
    Applicant: BLACK & DECKER INC.
    Inventors: Brent A. KUEHNE, Jianhua CHEN, Jian GAO, Wen ZHU, Guoquing WANG
  • Publication number: 20240298001
    Abstract: Embodiments of the present disclosure provide a method, an electronic device and a computer storage medium for determining the size of group of pictures. The method includes: determining a plurality of candidate sizes; computing motion complexity of picture sets corresponding to the plurality of candidate sizes; and performing preset operation based on the motion complexity of each of the picture sets, and selecting a target size from the plurality of candidate sizes as the GOP size according to the operation result, the GOP including continuous to-be-encoded picture frames in the picture set corresponding to the target size.
    Type: Application
    Filed: February 28, 2024
    Publication date: September 5, 2024
    Inventors: Shengyang XU, Jianhua CHEN, Yan YE
  • Patent number: 12011814
    Abstract: A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The switch fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the switch fork relative to the selector switch into a neutral position.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: June 18, 2024
    Assignee: BLACK & DECKER INC.
    Inventors: Brent A. Kuehne, Jianhua Chen, Jian Gao, Wen Zhu, Guoquing Wang
  • Publication number: 20240170242
    Abstract: A polymer positive temperature coefficient (PPTC) material is provided. The PPTC material may include a polymer matrix that defines a PPTC body, and further includes a high temperature polymer. The PPTC material may include a conductive filler component, disposed in the polymer matrix, an arc suppressant, and a high temperature antioxidant, disposed in the polymer matrix.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 23, 2024
    Applicant: Dongguan Littelfuse Electronics Company Limited
    Inventors: Qingbei Li, Jianhua Chen, Flory Zhou, Wilson Zheng
  • Patent number: D1056583
    Type: Grant
    Filed: August 29, 2024
    Date of Patent: January 7, 2025
    Inventor: Jianhua Chen
  • Patent number: D1068268
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: April 1, 2025
    Assignee: SHENZHEN YUANDAOYUAN INDUSTRY CO., LTD
    Inventor: Jianhua Chen