Patents by Inventor Chengxi LI
Chengxi LI 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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Patent number: 11951461Abstract: A solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, a ratio of macropore specific volume to specific length of catalyst particles of about 1.0-2.5 ml/(g·mm), and a ratio of specific surface area to length of catalyst particles of about 3.40-4.50 m2/mm. The macropore refers to pores having a diameter of more than 50 nm. An alkylation catalyst is based on the solid acid catalyst and can be used in alkylation reactions. The solid acid catalyst and alkylation catalyst show an improved catalyst service life and/or trimethylpentane selectivity when used in the alkylation of isoparaffins with olefins.Type: GrantFiled: January 20, 2020Date of Patent: April 9, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Yongxiang Li, Xuhong Mu, Chengxi Zhang, Hexin Hu, Qiang Fu, Xingtian Shu
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Publication number: 20230298330Abstract: Systems and methods for detecting objects in photon-limited environments is disclosed for use in, for example, security, defense, life science, autonomous vehicles, and various consumer and medical applications. At least one embodiment integrates a non-local feature aggregation method and a knowledge distillation method with state-of-the-art detector networks. The two methods offer better feature representations for photonlimited images. In comparison with baseline systems, detectors according to embodiments of the present disclosure demonstrate superior performance in synthetic and real environments. When embodiments are applied to the latest photon counting devices, object detection can be achieved at a photon level of 1 photon per pixel or lower, significantly surpassing the capabilities of existing CMOS image sensors and algorithms.Type: ApplicationFiled: October 11, 2022Publication date: September 21, 2023Inventors: Stanley H. CHAN, Chengxi LI, Abhiram GNANASAMBANDAM, Xiangyu QU
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Patent number: 11702891Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member made of a first woven material. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that a cutting profile of the force modulation system is variable. There can also be a second force member of a second woven material to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member, including the first woven material and the second woven material being the same material.Type: GrantFiled: July 19, 2021Date of Patent: July 18, 2023Assignees: CNPC USA Corporation, Beijing Huamei Inc. CNPCInventors: Lei Zhao, Ming Zhang, Chris Cheng, Jiaxiang Ren, Chengxi Li
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Patent number: 11544935Abstract: A system and method for risk object identification via causal inference that includes receiving at least one image of a driving scene of an ego vehicle and analyzing the at least one image to detect and track dynamic objects within the driving scene of the ego vehicle. The system and method also include implementing a mask to remove each of the dynamic objects captured within the at least one image. The system and method further include analyzing a level of change associated with a driving behavior with respect to a removal of each of the dynamic objects. At least one dynamic object is identified as a risk object that has a highest level of influence with respect to the driving behavior.Type: GrantFiled: June 30, 2020Date of Patent: January 3, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Yi-Ting Chen, Chengxi Li
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Patent number: 11460856Abstract: Systems and methods for driver behavior recognition is provided. In one embodiment a computer implemented method includes receiving image data associated with a general objects. The method also includes identifying a reactive object and an inert object from the general objects based on the image data. An ego reactive graph is generated for the reactive object based on a reactive feature of the reactive object and a reactive position vector. An ego inert graph is generated for the inert object based on an inert feature of the inert object and an inert distance. The method further includes performing interaction modeling based on the ego reactive graphs and the ego inert graphs to generate updated features. The method also includes performing temporal modeling on the updated features. The method further includes determining an egocentric representation of a tactical driver behavior based at least in part on the updated features.Type: GrantFiled: December 27, 2019Date of Patent: October 4, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Yi-Ting Chen, Chengxi Li, Yue Meng
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Patent number: 11458987Abstract: A system and method for predicting driving actions based on intent-aware driving models that include receiving at least one image of a driving scene of an ego vehicle. The system and method also include analyzing the at least one image to detect and track dynamic objects located within the driving scene and to detect and identify driving scene characteristics associated with the driving scene and processing an ego-thing graph associated with the dynamic objects and an ego-stuff graph associated with the driving scene characteristics. The system and method further include predicting a driver stimulus action based on a fusion of representations of the ego-thing graph and the ego-stuff graph and a driver intention action based on an intention representation associated with driving intentions of a driver of the ego vehicle.Type: GrantFiled: August 28, 2020Date of Patent: October 4, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Chengxi Li, Yi-Ting Chen
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Publication number: 20220192182Abstract: A specimen transporter includes a housing and a lid attached so as to enable a transition of the specimen transporter from a closed configuration, in which an internal cavity of the housing is thermally isolated from an exterior of the specimen transporter, to an open configuration, in which the internal cavity is accessible via an opening of the housing. The specimen transporter includes a thermal shunt positioned within the internal cavity so as to evenly distribute heat within the internal cavity. The specimen transporter includes a carrier to support one or more specimen containers each carrying a respective biological sample to be transported.Type: ApplicationFiled: December 15, 2021Publication date: June 23, 2022Inventors: Brian Joseph Bixon, Chengxi Li
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Publication number: 20220184625Abstract: A specimen holder includes a body, a sleeve, and a wireless transponder. The body has distal and proximal portions, the distal portion including a surface that carries a specimen upon engagement of the body with the specimen, and the proximal portion including a first pair of parallel surfaces. The sleeve has distal and proximal portions, a side wall, and an internal cavity at least partially enclosed by the side wall. The distal portion of the sleeve includes a second pair of parallel surfaces. The wireless transponder is sized to be positioned within the internal cavity of the sleeve. The sleeve is attachable to the body by capturing one of the first and second pairs of parallel surfaces between the other of the first and second pairs of parallel surfaces.Type: ApplicationFiled: December 9, 2021Publication date: June 16, 2022Inventors: Brian Joseph Bixon, Chengxi Li, Alan Murray
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Publication number: 20220162915Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member made of a first woven material. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that a cutting profile of the force modulation system is variable. There can also be a second force member of a second woven material to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member, including the first woven material and the second woven material being the same material.Type: ApplicationFiled: July 19, 2021Publication date: May 26, 2022Inventors: Lei ZHAO, Ming ZHANG, Chris CHENG, Jiaxiang REN, Chengxi LI
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Publication number: 20220147738Abstract: A method for processing images of animals obtains first training data, which includes first images of animals and first annotation data including first location data for predefined feature points on at least one animal in each image in the first images, and trains a first machine learning-based model (MLM) by use of the first training data to generate a first trained MLM. The method obtains second images of animals, operates the first trained MLM on the second images to generate second annotation data comprising second location data for the predefined feature points on at least one animal in each image in the second images, and aggregates at least a subset of the first and second images, and a corresponding subset of the first and second annotation data, into second training data, which thereby is expanded in relation to the first training data.Type: ApplicationFiled: September 29, 2021Publication date: May 12, 2022Inventors: Sangxia HUANG, Chengxi LI
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Publication number: 20220122087Abstract: A computer-implemented method for authenticating an online user includes steps including receiving, from a requestor server in communication with a merchant website, an authentication request message including authentication data collected from a user computing device during an online interaction with the merchant website. The steps also include extracting the authentication data from the authentication request message, and applying a risk-based authentication (RBA) engine to the authentication data to obtain RBA result data including a reason code that includes no more than three bytes of data. The steps further include causing the reason code to be embedded in an authorization request message generated during the online interaction and routed to a decisioning server via a payment network.Type: ApplicationFiled: December 31, 2021Publication date: April 21, 2022Inventors: Julia Sharon Gosset, Warda Zahid Khan, Felix Johannes Flory, Adam Kenneth Hosp, Chengxi Li, Christopher John Merz
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Publication number: 20220108146Abstract: An interrogation device and/or system includes a body and an antenna, the body has an aperture or elongated receiver with an opening and an internal perimeter or inner wall sized and/or shaped to receive a portion of a container therein, either with or without a cap of the container. The container may, for example, be used to store biological specimens a cryogenic temperatures. One or more alignment features of the body align wireless transponders (e.g., RFID transponders) of tagged specimen containers and/or carriers with the antenna to enhance interrogation. Alignment may be along a longitudinal or Z-axis, and/or alignment in an XY plane, perpendicular to the Z-axis. Shielding may reduce or even eliminate cross-talk with neighboring wireless tagged specimen containers and/or carriers.Type: ApplicationFiled: September 30, 2021Publication date: April 7, 2022Inventors: Brian Joseph Bixon, Alan Murray, Chengxi Li
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Patent number: 11213529Abstract: A salt of a substituted urea derivative of formula (I) and use thereof in the pharmaceutical field. Also, a pharmaceutical composition containing the salt or a combination thereof, and use of the salt or the pharmaceutical composition in the manufacture of a medicament for treating, remitting or preventing a disorder related to tyrosine kinase activity.Type: GrantFiled: July 11, 2018Date of Patent: January 4, 2022Assignee: SUNSHINE LAKE PHARMA CO., LTD.Inventors: Liang Chen, Chengxi Li, Bing Liu, Yingjun Zhang, Changchung Cheng
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Publication number: 20210261148Abstract: A system and method for predicting driving actions based on intent-aware driving models that include receiving at least one image of a driving scene of an ego vehicle. The system and method also include analyzing the at least one image to detect and track dynamic objects located within the driving scene and to detect and identify driving scene characteristics associated with the driving scene and processing an ego-thing graph associated with the dynamic objects and an ego-stuff graph associated with the driving scene characteristics. The system and method further include predicting a driver stimulus action based on a fusion of representations of the ego-thing graph and the ego-stuff graph and a driver intention action based on an intention representation associated with driving intentions of a driver of the ego vehicle.Type: ApplicationFiled: August 28, 2020Publication date: August 26, 2021Inventors: Chengxi Li, Yi-Ting Chen
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Publication number: 20210264167Abstract: A system and method for risk object identification via causal inference that includes receiving at least one image of a driving scene of an ego vehicle and analyzing the at least one image to detect and track dynamic objects within the driving scene of the ego vehicle. The system and method also include implementing a mask to remove each of the dynamic objects captured within the at least one image. The system and method further include analyzing a level of change associated with a driving behavior with respect to a removal of each of the dynamic objects. At least one dynamic object is identified as a risk object that has a highest level of influence with respect to the driving behavior.Type: ApplicationFiled: June 30, 2020Publication date: August 26, 2021Inventors: Yi-Ting Chen, Chengxi Li
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Publication number: 20210080971Abstract: Systems and methods for driver behavior recognition is provided. In one embodiment a computer implemented method includes receiving image data associated with a general objects. The method also includes identifying a reactive object and an inert object from the general objects based on the image data. An ego reactive graph is generated for the reactive object based on a reactive feature of the reactive object and a reactive position vector. An ego inert graph is generated for the inert object based on an inert feature of the inert object and an inert distance. The method further includes performing interaction modeling based on the ego reactive graphs and the ego inert graphs to generate updated features. The method also includes performing temporal modeling on the updated features. The method further includes determining an egocentric representation of a tactical driver behavior based at least in part on the updated features.Type: ApplicationFiled: December 27, 2019Publication date: March 18, 2021Inventors: Yi-Ting Chen, Chengxi Li, Yue Meng
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Publication number: 20200121690Abstract: A salt of a substituted urea derivative of formula (I) and use thereof in the pharmaceutical field. Also, a pharmaceutical composition containing the salt or a combination thereof, and use of the salt or the pharmaceutical composition in the manufacture of a medicament for treating, remitting or preventing a disorder related to tyrosine kinase activity.Type: ApplicationFiled: July 11, 2018Publication date: April 23, 2020Applicant: NORTH & SOUTH BROTHER PHARMACY INVESTMENT COMPANY LIMITEDInventors: Liang CHEN, Chengxi LI, Bing LIU, Yingjun ZHANG, Changchung CHENG