Patents by Inventor Dajun Zhou
Dajun Zhou 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).
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Publication number: 20240119566Abstract: This application provides an image processing method and an electronic device. The image processing method includes: acquiring a plurality of frames of original images; adding a reference coordinate image layer to a second field-of-view image; obtaining an image layer set according to a first field-of-view image, the second field-of-view image, and the reference coordinate image layer; processing, by using a deep learning network model, the image layer set to obtain a first enhanced image; and obtaining a second enhanced image according to the first enhanced image. In the method, since the added reference coordinate image layer reflects a mapping relationship between a field of view corresponding to the first field-of-view image and a field of view corresponding to the second field-of-view image, through the addition of the reference coordinate image layer, priori information can be added, so that different adjustments can be made subsequently according to different field-of-view relationships.Type: ApplicationFiled: May 19, 2022Publication date: April 11, 2024Applicant: Honor Device Co., Ltd.Inventors: Bin XIAO, Dajun DING, Xiaolei QIAO, Maosen ZHOU, Yu WANG, Congchao ZHU
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Patent number: 11845122Abstract: A stamping machine configured to shape a sheet material including an upper binder including first teeth, a lower binder including second teeth, and a punch. A first cylinder is positioned between a lower binder and a support surface. A second cylinder is positioned between the upper binder and the lower binder. A cushion pin is positioned at the support surface that is configured to contact and control movement of the lower binder relative to the punch. A force exerted by the second cylinder is greater than that exerted by the first cylinder, and the force exerted by the cushion pin is greater than that exerted by the second cylinder. The first and second cylinders and the cushion pin are used to control when the first and second teeth are permitted to engage the sheet material, which assists in preventing or minimizing spring back of the sheet material through post-stretching.Type: GrantFiled: November 24, 2020Date of Patent: December 19, 2023Assignee: FCA US LLCInventors: Dajun Zhou, Kaiping Li, Robert D Miller, Richard J Siemen, Yongiun Zhou
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Patent number: 11684962Abstract: A stamping apparatus that includes an upper die, a blank-holding binder, and fixed lower die. The fixed lower die features a drawing punch and the upper die features a corresponding cavity. The fixed lower die includes a stake bead and a corresponding depression is present on the upper die. The blank-holding binder includes a draw bead and a corresponding depression is present on the upper die. In the stamping process, the draw bead engages a blank in a first stage, causing the blank to begin to stretch into the shape of the drawing punch with a greater tightened partially finished panel shape. In a second stage, the draw bead disengages the blank as the blank is drawn towards the drawing punch. In a final stage, the stake bead engages the blank to tighten the blank around the drawing punch into a final shape.Type: GrantFiled: June 15, 2021Date of Patent: June 27, 2023Assignee: FCA US LLCInventors: Dajun Zhou, Chunlei Wang, Robert D Miller, Kaiping Li, Yongjun Zhou, Richard J Siemen
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Publication number: 20220395884Abstract: A stamping apparatus that includes an upper die, a blank-holding binder, and fixed lower die. The fixed lower die features a drawing punch and the upper die features a corresponding cavity. The fixed lower die includes a stake bead and a corresponding depression is present on the upper die. The blank-holding binder includes a draw bead and a corresponding depression is present on the upper die. In the stamping process, the draw bead engages a blank in a first stage, causing the blank to begin to stretch into the shape of the drawing punch with a greater tightened partially finished panel shape. In a second stage, the draw bead disengages the blank as the blank is drawn towards the drawing punch. In a final stage, the stake bead engages the blank to tighten the blank around the drawing punch into a final shape.Type: ApplicationFiled: June 15, 2021Publication date: December 15, 2022Inventors: Dajun Zhou, Chunlei Wang, Robert D Miller, Kaiping Li, Yongjun Zhou, Richard J Siemen
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Patent number: 11401565Abstract: A laser beam is scanned along spaced apart side-by-side laser tracks to form corresponding spaced apart side-by-side hardened metal tracks across a binder surface of the forming die. Each hardened metal track is oriented to extend longitudinally in a direction that is normal to the metal flow direction across the binder surface during a sheet metal forming operation. The scanning forms the corresponding hardened metal tracks across the binder surface without needing to perform a post-hardening machining operation on the sheet metal forming die to remove distortion caused by the laser hardening process.Type: GrantFiled: May 17, 2019Date of Patent: August 2, 2022Assignee: FCA US LLCInventors: Dajun Zhou, Yongjun Zhou, Robert D Miller
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Publication number: 20220161307Abstract: A stamping machine configured to shape a sheet material including an upper binder including first teeth, a lower binder including second teeth, and a punch. A first cylinder is positioned between a lower binder and a support surface. A second cylinder is positioned between the upper binder and the lower binder. A cushion pin is positioned at the support surface that is configured to contact and control movement of the lower binder relative to the punch. A force exerted by the second cylinder is greater than that exerted by the first cylinder, and the force exerted by the cushion pin is greater than that exerted by the second cylinder. The first and second cylinders and the cushion pin are used to control when the first and second teeth are permitted to engage the sheet material, which assists in preventing or minimizing spring back of the sheet material through post-stretching.Type: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Inventors: Dajun Zhou, Kaiping Li, Robert D. Miller, Richard J. Siemen, Yongiun Zhou
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Patent number: 11285523Abstract: A metal blank is clamped between upper and lower binders with the metal blank engaging against a protrusion extending from a binder surface of any of the upper binder, the lower binder, and both upper and lower binders, to create a binder gap between the metal blank and the binder surface adjacent the protrusion. The binder gap prevents cooperating springback control binder elements of the binder surface from actively engaging the metal blank. The metal blank is drawn into a cavity, with the protrusion riding on the metal blank until the protrusion falls off an edge of the metal blank, which closes the binder gap between the metal blank and the binder surface causing the cooperating springback control binder elements to actively engage the blank for the post-forming stretching operation.Type: GrantFiled: June 27, 2019Date of Patent: March 29, 2022Assignee: FCA US LLCInventors: Dajun Zhou, Changqing Du, Kaiping Li, Robert D Miller
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Publication number: 20220040747Abstract: A method of forming a metal part that includes placing a metal blank in a stamping apparatus having a first die including a plurality of metal gainers and a second die including a plurality of recesses that correspond to the plurality of metal gainers, and compressing the metal blank such that the metal gainers and the corresponding recesses provide the metal blank with regions of localized stretching. Each of the metal gainers and recesses includes a flat surface such that during the compressing of the metal blank to provide the metal blank with the regions of localized stretching, a strain exerted on the metal blank by the metal gainers and recesses is less than a strain exerted on the metal blank by metal gainers and recesses that do not include the flat surface.Type: ApplicationFiled: August 6, 2020Publication date: February 10, 2022Inventors: Dajun Zhou, Chunlei Wang, Robert D Miller
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Publication number: 20210365782Abstract: In a method causing an electronic device to generate a neural network model that controls a game element, a hyperparameter value in a first neural network model is determined from a hyperparameter value set. A structural layer of the first neural network model includes the hyperparameter value, and an output layer, an input layer, and the structural layer are connected in a target connection. A first model accuracy of a second neural network model is obtained by training the first neural network model, and hyperparameter values of some hyperparameters in the first neural network model are updated to corresponding target hyperparameter values if the first model accuracy is lower than a target accuracy.Type: ApplicationFiled: June 16, 2021Publication date: November 25, 2021Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Ying HUANG, Dajun ZHOU, Xudong LI
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Patent number: 10942529Abstract: The present disclosure discloses an aircraft (e.g., unmanned aerial obstacle detection method and apparatus, to reduce aircraft obstacle detection errors, and improve aircraft obstacle detection precision. The apparatus performs image collection on a target obstacle by using a binocular camera, to obtain a first image and a second image. After determining a first pixel location obtained by projecting the target obstacle in the first image, and a second pixel location obtained by projecting the target obstacle in the second image, the apparatus calculates a disparity between the first pixel location and the second pixel location and a depth value between the binocular camera and the target obstacle according to the disparity and a preset disparity-to-depth mapping matrix, to detect whether a flight direction of the aircraft is blocked by an obstacle.Type: GrantFiled: March 7, 2019Date of Patent: March 9, 2021Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Ying Huang, Dajun Zhou
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Patent number: 10933458Abstract: A stamping press binder assembly for forming a finished stamped product from a blank includes an upper die for at least partially forming the finished stamped product, a stationary punch, an inner lower binder, and an outer lower binder. The inner and outer lower binders are both supported by a single cushion.Type: GrantFiled: December 19, 2018Date of Patent: March 2, 2021Assignee: FCA US LLCInventors: Dajun Zhou, Changqing Du, Robert D Miller, Richard J Siemen
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Publication number: 20200406327Abstract: A metal blank is clamped between upper and lower binders with the metal blank engaging against a protrusion extending from a binder surface of any of the upper binder, the lower binder, and both upper and lower binders, to create a binder gap between the metal blank and the binder surface adjacent the protrusion. The binder gap prevents cooperating springback control binder elements of the binder surface from actively engaging the metal blank. The metal blank is drawn into a cavity, with the protrusion riding on the metal blank until the protrusion falls off an edge of the metal blank, which closes the binder gap between the metal blank and the binder surface causing the cooperating springback control binder elements to actively engage the blank for the post-forming stretching operation.Type: ApplicationFiled: June 27, 2019Publication date: December 31, 2020Inventors: Dajun Zhou, Changqing Du, Kaiping Li, Robert D. Miller
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Publication number: 20200391326Abstract: Segment openings are formed in a metal sheet separated by uncut sections at a first processing station, which define an inner blank portion of the metal flow opening. At a second processing station, the uncut sections and the inner blank portion initially transfer stress around the segment openings and across the interior flow opening during a forming operation. During the forming operation, a protrusion of one mold member contacts a first side of the inner blank portion of the interior flow opening. In addition, another mold member is contact the opposite side of the metal sheet so that the mold members cooperate to separate all but one of the uncut sections by which the inner blank portion remains attached to the metal sheet. In this way, the interior metal flow opening is completed without piercing the metal sheet at the second processing station during the forming operation.Type: ApplicationFiled: June 12, 2019Publication date: December 17, 2020Inventors: Dajun Zhou, Thomas W Cox, Kaiping Li, Yongjun Zhou, Richard Siemen, Robert D Miller
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Publication number: 20200362426Abstract: A laser beam is scanned along spaced apart side-by-side laser tracks to form corresponding spaced apart side-by-side hardened metal tracks across a binder surface of the forming die. Each hardened metal track is oriented to extend longitudinally in a direction that is normal to the metal flow direction across the binder surface during a sheet metal forming operation. The scanning forms the corresponding hardened metal tracks across the binder surface without needing to perform a post-hardening machining operation on the sheet metal forming die to remove distortion caused by the laser hardening process.Type: ApplicationFiled: May 17, 2019Publication date: November 19, 2020Inventors: Dajun Zhou, Yongjun Zhou, Robert D. Miller
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Patent number: 10795379Abstract: Aspects of the disclosure provide a method for flight control and a control apparatus for flight control. In an example, a first aircraft includes the control apparatus for flight control and the control apparatus includes interface circuitry and processing circuitry. The interface circuitry receives a first flight control instruction and a flight parameter. The first flight control instruction and the flight parameter are sent by a mobile terminal device. The flight parameter is indicative of a preset flight altitude. In response to the first flight control instruction, the processing circuitry controls the first aircraft to fly to the preset flight altitude. Further, the processing circuitry detects an existence of a second aircraft within a surrounding of the first aircraft, and adjusts a flight posture of the first aircraft according to the existence detection of the second aircraft within the surrounding of the first aircraft.Type: GrantFiled: June 12, 2018Date of Patent: October 6, 2020Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Dajun Zhou, Junfeng Shen, Bin Wang, Xuefeng Wei
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Patent number: 10786842Abstract: A method of forming a finished stamped product includes positioning a blank on a blank holder between an upper die and a lower die, inserting a movable wedge block between the blank holder and the upper die to establish a first binder gap, and while the movable wedge block is inserted, performing a first strike of the blank by lowering the upper die a first distance to contact and partially form the blank, the movable wedge block limiting downward movement of the upper die relative to the lower die. After the first strike, withdrawing the movable wedge block to establish a second binder gap between the blank holder and the upper die, and while the movable wedge block is withdrawn, performing a second strike of the blank by lowering the upper die a second distance to finally form the blank into the finished product.Type: GrantFiled: September 12, 2018Date of Patent: September 29, 2020Assignee: FCA US LLCInventors: Dajun Zhou, Changqing Du, Robert D Miller
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Publication number: 20200197997Abstract: A stamping press binder assembly for forming a finished stamped product from a blank includes an upper die for at least partially forming the finished stamped product, a stationary punch, an inner lower binder, and an outer lower binder. The inner and outer lower binders are both supported by a single cushion.Type: ApplicationFiled: December 19, 2018Publication date: June 25, 2020Inventors: Dajun Zhou, Changqing Du, Robert D Miller, Richard J Siemen
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Patent number: 10668516Abstract: A sheet metal material is stamped into a formed shape having a side wall between a central portion and a flange portion. The central portion is held between an upper pad and a die, and the flange portion is held between an upper binder and a lower binder. A post-stamping compression force is applied along a length of the side wall of the formed shape. For example, application of the post-stamping compression force includes moving the lower binder relatively toward the upper pad, such as by delaying a return of the upper pad during a portion of a return of the lower binder. During application of the post-stamping compression force, an outward force is applied against an inner surface of the side wall to insure any bowing of the side wall is in an outward direction.Type: GrantFiled: September 1, 2016Date of Patent: June 2, 2020Assignee: FCA US LLCInventors: Dajun Zhou, Changqing Du
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Publication number: 20200078846Abstract: A method of forming a finished stamped product includes positioning a blank on a blank holder between an upper die and a lower die, inserting a movable wedge block between the blank holder and the upper die to establish a first binder gap, and while the movable wedge block is inserted, performing a first strike of the blank by lowering the upper die a first distance to contact and partially form the blank, the movable wedge block limiting downward movement of the upper die relative to the lower die. After the first strike, withdrawing the movable wedge block to establish a second binder gap between the blank holder and the upper die, and while the movable wedge block is withdrawn, performing a second strike of the blank by lowering the upper die a second distance to finally form the blank into the finished product.Type: ApplicationFiled: September 12, 2018Publication date: March 12, 2020Inventors: Dajun Zhou, Changqing Du, Robert D. Miller
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Patent number: 10408296Abstract: A metal stamping tool includes a hybrid magnetorheological-nitrogen spring including a housing having an interior wall defining an interior volume. A fixed divider separates the interior volume into a nitrogen gas chamber and a magnetorheological fluid chamber. A piston extends into both the nitrogen gas chamber and the magnetorheological fluid chamber. The piston defines a magnetorheological fluid gap within the magnetorheological fluid chamber. An electric coil positioned adjacent the fluid gap to apply a magnetic field to magnetorheological fluid within the fluid gap when the electric coil is energized.Type: GrantFiled: February 25, 2016Date of Patent: September 10, 2019Assignee: FCA US LLCInventor: Dajun Zhou