Patents by Inventor Yuwen Zhang
Yuwen Zhang 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: 20240157743Abstract: A sorting vehicle is provided that includes a wire harness structure and at least two vehicle bodies. The at least two vehicle bodies are pivotally connected to one another in sequence, the wire harness structure is connected to the two adjacent vehicle bodies, and the wire harness structure includes an elastic deformation portion located at a junction of the two adjacent vehicle bodies.Type: ApplicationFiled: January 5, 2022Publication date: May 16, 2024Applicant: Beijing Jingdong Qianshi Technology Co., Ltd.Inventors: Wenjun Shan, Li Zhang, Guoku Song, Yuwen Tang, Bin Li
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Publication number: 20240159871Abstract: Unsupervised object detection from lidar point clouds includes forecasting a set of new positions of a set of objects in a geographic region based on a first set of object tracks to obtain a set of forecasted object positions, and obtaining a new LiDAR point cloud of the geographic region. A detector model processes the new LiDAR point cloud to obtain a new set of bounding boxes around the set of objects detected in the new LiDAR point cloud. Object detection further includes matching the new set of bounding boxes to the set of forecasted object positions to generate a set of matches, updating the first set of object tracks with the new set of bounding boxes according to the set of matches to obtain an updated set of object tracks, and filtering, after updating, the updated set of object tracks to remove object tracks failing to satisfy a track length threshold, to generate a training set of object tracks.Type: ApplicationFiled: November 10, 2023Publication date: May 16, 2024Inventors: Lunjun ZHANG, Yuwen XIONG, Sergio CASAS ROMERO, Mengye REN, Raquel URTASUN, Angi Joyce YANG
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Publication number: 20240146949Abstract: A method, device, and storage/recording medium for image encoding, including: obtaining first coding information for a first coding unit, in a first image, indicating a scheme for encoding the first coding unit into a first bitstream of the first image; determining, based on a relative position relationship between a target region in a second image obtained from the first image and a second coding unit in the second image, a reuse mode for the second coding unit regarding the first coding information, the second coding unit corresponding to the first coding unit, the target region indicating a region in the second image different from the first image; determining second coding information for the second coding unit based on the reuse mode; and generating a second bitstream for the second image based on the second coding information. Thereby, reducing computational complexity of transcoding and avoiding degradation of coding performance/quality.Type: ApplicationFiled: March 2, 2022Publication date: May 2, 2024Inventors: Xueqing LI, Li ZHANG, Yuwen HE
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Patent number: 11968368Abstract: A method of video processing includes performing a conversion between a current video block of a second color component of a video and a bitstream of the video using a cross-component prediction with multiple-parameter model (CCPMPM) in which samples of the current video block are predictively coded in the bitstream using a linear combination of samples of a first color component multiplied by linear coefficients and/or one or more offsets. The bitstream conforms to a format rule. The linear coefficients of the CCPMPM are determined using a first rule. The samples of the first color component are determined using a second rule.Type: GrantFiled: June 24, 2022Date of Patent: April 23, 2024Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yuwen He, Yue Wang
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Publication number: 20240129489Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of processing video data includes determining, for a conversion between a video block of a video and a bitstream of the video, a gradient of a prediction vector at a sub-block level for the video block according to a rule, wherein the rule specifies to use a same gradient value is assigned for all samples within a sub-block of the video block; and performing the conversion based on the determining.Type: ApplicationFiled: November 16, 2023Publication date: April 18, 2024Inventors: Kai Zhang, Yuwen He, Li Zhang, Hongbin Liu, Tianliang Fu, Junru Li, Siwei Ma
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Patent number: 11956448Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of processing video data includes determining, for a conversion between a video block of a video and a bitstream of the video, a gradient of a prediction vector at a sub-block level for the video block according to a rule, wherein the rule specifies to use a same gradient value is assigned for all samples within a sub-block of the video block; and performing the conversion based on the determining.Type: GrantFiled: December 7, 2022Date of Patent: April 9, 2024Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.Inventors: Kai Zhang, Yuwen He, Li Zhang, Hongbin Liu, Tianliang Fu, Junru Li, Siwei Ma
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Patent number: 11834381Abstract: Disclosed are a room temperature curable quick-setting high-strength alkali-activated fly ash (AAFA) cementitious material and a preparation method thereof, belonging to the technical field of building materials. The raw materials include: in parts by mass, 30-50 parts of undisturbed fly ash, 50-70 parts of highly reactive ultra-fine fly ash, and 12-18 parts of sodium hydroxide. Specifically, the AAFA with fast setting and high strength for room temperature curing is prepared by pretreatment of fly ash with sodium hydroxide exciter, based on a premise that the raw material system and preparation process are simplified and feasible.Type: GrantFiled: February 28, 2023Date of Patent: December 5, 2023Assignee: XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGYInventors: Hui Li, Huimei Zhu, Yuwen Zhang, Xindong Zhang, Chen Yu, Jia'ni Chen
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Publication number: 20230278920Abstract: Disclosed are a room temperature curable quick-setting high-strength alkali-activated fly ash (AAFA) cementitious material and a preparation method thereof, belonging to the technical field of building materials. The raw materials include: in parts by mass, 30-50 parts of undisturbed fly ash, 50-70 parts of highly reactive ultra-fine fly ash, and 12-18 parts of sodium hydroxide. Specifically, the AAFA with fast setting and high strength for room temperature curing is prepared by pretreatment of fly ash with sodium hydroxide exciter, based on a premise that the raw material system and preparation process are simplified and feasible.Type: ApplicationFiled: February 28, 2023Publication date: September 7, 2023Inventors: Hui LI, Huimei ZHU, Yuwen ZHANG, Xindong ZHANG, Chen YU, Jia'ni CHEN
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Patent number: 11040916Abstract: A waterproofing agent for concrete includes: 1-60 parts by weight of ferric ions; 1-60 parts by weight of carboxylate ions; 1-40 parts by weight of 8-hydroxyquinoline; and 1-50 parts by weight of pyrosulfate ions.Type: GrantFiled: March 25, 2020Date of Patent: June 22, 2021Inventor: Yuwen Zhang
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Publication number: 20200223759Abstract: A waterproofing agent for concrete includes: 1-60 parts by weight of ferric ions; 1-60 parts by weight of carboxylate ions; 1-40 parts by weight of 8-hydroxyquinoline; and 1-50 parts by weight of pyrosulfate ions.Type: ApplicationFiled: March 25, 2020Publication date: July 16, 2020Inventor: Yuwen ZHANG
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Patent number: 10064143Abstract: A system and method for signal backup of active DAS master unit are disclosed. The system includes a state detection unit, a backup processing unit and at least two power distribution units, wherein a backup signal output port and a plurality of backup access ports with a number great than or equal to that of the power distribution units are arranged on the backup processing unit, and a backup signal input port and a plurality of radio frequency access ports with a number great than or equal to that of the power distribution units are arranged on the state detection unit; and each power distribution unit has an input port coupled to one of a plurality of signal sources, and two output ports in which one is coupled to one radio frequency access port and the other is coupled to one backup access port, and the backup signal output port is coupled to the backup signal input port.Type: GrantFiled: May 8, 2015Date of Patent: August 28, 2018Assignee: COMBA TELECOM TECHNOLOGY (GUANGZHOU) CO., LTD.Inventors: Hui Zhang, Song Cao, Hailong Deng, Yuwen Zhang
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Publication number: 20180124714Abstract: A system and method for signal backup of active DAS master unit are disclosed. The system includes a state detection unit, a backup processing unit and at least two power distribution units, wherein a backup signal output port and a plurality of backup access ports with a number great than or equal to that of the power distribution units are arranged on the backup processing unit, and a backup signal input port and a plurality of radio frequency access ports with a number great than or equal to that of the power distribution units are arranged on the state detection unit; and each power distribution unit has an input port coupled to one of a plurality of signal sources, and two output ports in which one is coupled to one radio frequency access port and the other is coupled to one backup access port, and the backup signal output port is coupled to the backup signal input port.Type: ApplicationFiled: May 8, 2015Publication date: May 3, 2018Inventors: Hui Zhang, Song Cao, Hailong Deng, Yuwen Zhang
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Patent number: 9858648Abstract: A method for controlling screen rotation for use in a mobile terminal is provided. The method includes: when the mobile terminal enters a full-screen mode, locking a screen orientation of the mobile terminal, and acquiring an initial posture of the mobile terminal; monitoring a real-time posture of the mobile terminal in real time; and determining a screen rotation direction by comparing the real-time posture with the initial posture.Type: GrantFiled: November 4, 2015Date of Patent: January 2, 2018Assignee: Xiaomi Inc.Inventors: Shen Li, Fan Jin, Yuwen Zhang
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Patent number: 9838886Abstract: An active distributed antenna system and a relay unit thereof are disclosed.Type: GrantFiled: October 23, 2015Date of Patent: December 5, 2017Assignee: Comba Telecom Technology (Guangzhou) Co., Ltd.Inventors: Song Cao, Hailong Deng, Hui Zhang, Yuwen Zhang
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Patent number: 9832736Abstract: A method for gain control of an active DAS relay unit is disclosed, including: acquiring a downlink output power value of a remote unit accessing the active DAS, and acquiring an uplink maximum gain value of a relay unit of the active DAS; obtaining an attenuation adjustment value required to be set for an uplink where the remote unit is, based on a combination of the downlink output power value and the uplink maximum gain value; and setting an adjustable attenuator arranged in the uplink based on the attenuation adjustment value. A device for gain control of an active DAS relay unit and a relay unit are also disclosed. The present disclosure may be compatible with remote units with different power levels, simplify the complexity of the design of the coverage scheme, increase the flexibility of the network construction, and reduce the cost of the network construction.Type: GrantFiled: May 8, 2015Date of Patent: November 28, 2017Assignee: COMBA TELECOM TECHNOLOGY (GUANGZHOU) CO., LTD.Inventors: Hailong Deng, Hui Zhang, Song Cao, Yuwen Zhang
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Publication number: 20170181103Abstract: A method for gain control of an active DAS relay unit is disclosed, including: acquiring a downlink output power value of a remote unit accessing the active DAS, and acquiring an uplink maximum gain value of a relay unit of the active DAS; obtaining an attenuation adjustment value required to be set for an uplink where the remote unit is, based on a combination of the downlink output power value and the uplink maximum gain value; and setting an adjustable attenuator arranged in the uplink based on the attenuation adjustment value. A device for gain control of an active DAS relay unit and a relay unit are also disclosed. The present disclosure may be compatible with remote units with different power levels, simplify the complexity of the design of the coverage scheme, increase the flexibility of the network construction, and reduce the cost of the network construction.Type: ApplicationFiled: May 8, 2015Publication date: June 22, 2017Applicant: Comba Telecom Technology (Guangzhou) Co., Ltd.Inventors: Hailong DENG, Hui ZHANG, Song CAO, Yuwen ZHANG
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Publication number: 20170048724Abstract: An active distributed antenna system and a relay unit thereof are disclosed.Type: ApplicationFiled: October 23, 2015Publication date: February 16, 2017Applicant: Comba Telecom Technology (Guangzhou) Co., Ltd.Inventors: Song Cao, Hailong Deng, Hui Zhang, Yuwen Zhang
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Publication number: 20160062581Abstract: The present disclosure relates to methods and devices for displaying a document, which pertain to the field of computer technology. The method includes: in a state where a target document is displayed on a screen, when it is detected that the screen is subjected to displacement, determining a direction of the displacement; and translating the target document on the screen according to the direction of the displacement.Type: ApplicationFiled: June 25, 2015Publication date: March 3, 2016Applicant: Xiaomi Inc.Inventors: Shen LI, Yuwen ZHANG, Jingwei CAI
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Publication number: 20160055623Abstract: A method for controlling screen rotation for use in a mobile terminal is provided. The method includes: when the mobile terminal enters a full-screen mode, locking a screen orientation of the mobile terminal, and acquiring an initial posture of the mobile terminal; monitoring a real-time posture of the mobile terminal in real time; and determining a screen rotation direction by comparing the real-time posture with the initial posture.Type: ApplicationFiled: November 4, 2015Publication date: February 25, 2016Inventors: Shen Li, Fan Jin, Yuwen Zhang
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Patent number: 5468851Abstract: One, two and three dimensional structures may be synthesized or modified from polynucleotides. A core structure is expanded by cleavage of a loop with a restriction endonuclease and ligating another polynucleotide to the sticky ends so that the recognition site of the restriction enzyme is not reformed. This process is repeated as many times as necessary to synthesize any desired structure. The structures formed have a wide range of uses.Type: GrantFiled: September 2, 1993Date of Patent: November 21, 1995Assignee: New York UniversityInventors: Nadrian C. Seeman, Yuwen Zhang