Patents by Inventor Chang Xiao
Chang Xiao 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: 11963139Abstract: Embodiments of the application provide a sidelink logical channel multiplexing method and apparatus. After determining a first sidelink logical channel (SL LCH) that meets a first preset condition in at least one SL LCH, a terminal allocates a resource to data of the first SL LCH. Then, when a remaining resource of transmission resources is more than zero, the terminal determines, according to a communication range of the first SL LCH, a second SL LCH that meets a second preset condition, and allocates a resource to data of the second SL LCH. The first SL LCH and the second SL LCH are different. In the method, such a parameter as a communication range is considered in a multiplexing process, and data of SL LCHs with same or different communication ranges is multiplexed into a same transport block.Type: GrantFiled: October 29, 2021Date of Patent: April 16, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chang Yu, Xiao Xiao, Junren Chang, Xiangdong Zhang
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Publication number: 20240077875Abstract: The present disclosure provides a positioning method, including: obtaining a current local topology map established based on objects in an environment currently observed by a robot, obtaining a full topology map pre-established based on objects in a full environment in a preset area, the current local topology map and the full topology map including nodes representing the objects; matching a node pair to be associated constructed by two nodes in the current local topology map and two nodes in the full topology map; if a degree of association of the node pair to be associated is greater than a threshold, determining that the node pair to be associated is an associated node pair; and determining a pose of the robot according to one of a plurality of search ranches, with a largest number of associated node pairs.Type: ApplicationFiled: August 25, 2023Publication date: March 7, 2024Inventors: ZHI-GUANG XIAO, SI-BO LAI, MING-HUI GU, ZHI-CHANG QIU, WEI-LIN LIN
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Publication number: 20240044967Abstract: Provided is a method for determining insulation thermomechanical deterioration of a VPI wire rod of a pumped storage power generator motor. The method includes: periodically performing a cold-heat cycling test on a wire rod, and performing an insulation dielectric dissipation factor testing and a result interpretation of the insulation dielectric dissipation factor testing before and after each period to obtain corresponding data; in response to determining the interpretation result as the data being qualified, continuing to perform the cold-heat cycling test; and in response to determining the interpretation result as the data being unqualified, striking the wire rod with a copper hammer, and using an acoustic acquisition and analysis system to perform signal processing to determine spectral characteristics in a thermomechanical deterioration state as a deterioration criterion.Type: ApplicationFiled: October 27, 2022Publication date: February 8, 2024Applicant: CSG POWER GENERATION CO., LTD. MAINTENANCE AND TEST COMPANYInventors: Xiangdong LIU, Liangliang NIE, Qing LI, Minghao HUANG, Peng LING, Yalin JIA, Yakang ZHAO, Jun JIANG, Shidi TAO, Wenhan HUANG, Xubin CHEN, Chang XIAO, Xuan XIE, Haonan CHEN, Pengchao QI, Dongyang HU, Haixia YANG, Dejiang HU, Yanhong LIU, Na ZHANG, Yifeng HUANG
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Patent number: 11891563Abstract: A pH-sensitive temporary plugging agent and its preparation method, and the use thereof in exploitation of a low-permeability oil reservoir are disclosed. The temporary plugging agent is prepared by raw materials including, in percentages by mass, 3-8% of carboxymethyl chitosan, 0.2-0.7% of gelatin, 0.1-0.6% of an initiator, 5-15% of a toughener, and a balance of water, wherein the initiator is a solution of AgNO3 in ammonia water having a concentration of 0.1-0.3 mol/L, and the toughener is a carboxyl-terminated hyperbranched polyester.Type: GrantFiled: September 8, 2021Date of Patent: February 6, 2024Assignee: YANGTZE UNIVERSITYInventors: Huan Yang, Zhuyang Jiang, Xiaorong Yu, Gaoshen Su, Kailu Wang, Beibei Zhang, Yang Li, Chang Xiao
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Patent number: 11892496Abstract: Provided is a method for determining insulation thermomechanical deterioration of a VPI wire rod of a pumped storage power generator motor. The method includes: periodically performing a cold-heat cycling test on a wire rod, and performing an insulation dielectric dissipation factor testing and a result interpretation of the insulation dielectric dissipation factor testing before and after each period to obtain corresponding data; in response to determining the interpretation result as the data being qualified, continuing to perform the cold-heat cycling test; and in response to determining the interpretation result as the data being unqualified, striking the wire rod with a copper hammer, and using an acoustic acquisition and analysis system to perform signal processing to determine spectral characteristics in a thermomechanical deterioration state as a deterioration criterion.Type: GrantFiled: October 27, 2022Date of Patent: February 6, 2024Assignee: CSG POWER GENERATION CO., LTD. MAINTENANCE AND TEST COMPANYInventors: Xiangdong Liu, Liangliang Nie, Qing Li, Minghao Huang, Peng Ling, Yalin Jia, Yakang Zhao, Jun Jiang, Shidi Tao, Wenhan Huang, Xubin Chen, Chang Xiao, Xuan Xie, Haonan Chen, Pengchao Qi, Dongyang Hu, Haixia Yang, Dejiang Hu, Yanhong Liu, Na Zhang, Yifeng Huang
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Patent number: 11886673Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: detecting physical touch of a touch-sensitive component on a back portion of a client device, the client device displaying a graphical user interface on a touch-sensitive display screen of a front portion of the client device; in response to detecting the physical touch, transmitting an electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device to the touch-sensitive display screen of the front portion of the client device; and causing an operation associated with the graphical user interface to be executed in response to the touch-sensitive display screen receiving the electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device.Type: GrantFiled: December 8, 2022Date of Patent: January 30, 2024Assignee: Snap Inc.Inventors: Shree K. Nayar, Chang Xiao, Changxi Zheng
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Publication number: 20230386143Abstract: A system and methods for providing human-invisible AR markers is described. One aspect of the system and methods includes identifying AR metadata associated with an object in an image; generating AR marker image data based on the AR metadata; generating a first variant of the image by adding the AR marker image data to the image; generating a second variant of the image by subtracting the AR marker image data from the image; and displaying the first variant and the second variant of the image alternately at a display frequency to produce a display of the image, wherein the AR marker image data is invisible to a human vision system in the display of the image.Type: ApplicationFiled: May 25, 2022Publication date: November 30, 2023Inventors: Chang Xiao, Ryan A. Rossi, Eunyee Koh
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Publication number: 20230297625Abstract: The present disclosure relates to systems, methods, and non-transitory computer readable media that utilize a graph neural network to generate data recommendations. The disclosed systems generate a digital graph representation comprising user nodes corresponding to users, data attribute nodes corresponding to data attributes, and edges reflecting historical interactions between the users and the data attributes; Moreover, the disclosed systems generate, utilizing a graph neural network, user embeddings for the user nodes and data attribute embeddings for the data attribute nodes from the digital graph representation. In addition, the disclosed systems generate, utilizing a graph neural network, user embeddings for the user nodes and data attribute embeddings for the data attribute nodes from the digital graph representation.Type: ApplicationFiled: March 15, 2022Publication date: September 21, 2023Inventors: Fayokemi Ojo, Ryan Rossi, Jane Hoffswell, Shunan Guo, Fan Du, Sungchul Kim, Chang Xiao, Eunyee Koh
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Publication number: 20230103517Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: detecting physical touch of a touch-sensitive component on a back portion of a client device, the client device displaying a graphical user interface on a touch-sensitive display screen of a front portion of the client device; in response to detecting the physical touch, transmitting an electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device to the touch-sensitive display screen of the front portion of the client device; and causing an operation associated with the graphical user interface to be executed in response to the touch-sensitive display screen receiving the electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device.Type: ApplicationFiled: December 8, 2022Publication date: April 6, 2023Inventors: Shree K. Nayar, Chang Xiao, Changxi Zheng
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Patent number: 11550435Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: detecting physical touch of a touch-sensitive component on a back portion of a client device, the client device displaying a graphical user interface on a touch-sensitive display screen of a front portion of the client device; in response to detecting the physical touch, transmitting an electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device to the touch-sensitive display screen of the front portion of the client device; and causing an operation associated with the graphical user interface to be executed in response to the touch-sensitive display screen receiving the electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device.Type: GrantFiled: May 12, 2021Date of Patent: January 10, 2023Assignee: Snap Inc.Inventors: Shree K. Nayar, Chang Xiao, Changxi Zheng
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Publication number: 20220333001Abstract: A pH-sensitive temporary plugging agent and its preparation method, and the use thereof in exploitation of a low-permeability oil reservoir are disclosed. The temporary plugging agent is prepared by raw materials including, in percentages by mass, 3-8% of carboxymethyl chitosan, 0.2-0.7% of gelatin, 0.1-0.6% of an initiator, 5-15% of a toughener, and a balance of water, wherein the initiator is a solution of AgNO3 in ammonia water having a concentration of 0.1-0.3 mol/L, and the toughener is a carboxyl-terminated hyperbranched polyester.Type: ApplicationFiled: September 8, 2021Publication date: October 20, 2022Inventors: Huan Yang, Zhuyang Jiang, Xiaorong Yu, Gaoshen Su, Kailu Wang, Beibei Zhang, Yang Li, Chang Xiao
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Publication number: 20220015606Abstract: A sticky mat changing device includes a frame, an unreeling roller, a reeling roller, and a control module. The frame includes a foot board configured for supporting a sticky mat. The unreeling roller is operable to unreel the sticky mat. The reeling roller is operable to reel the sticky mat. The unreeling roller and the reeling roller are disposed inside the frame and located on opposite sides of the foot board, the control module is operable to control each of the reeling roller and the unreeling roller to rotate to change a portion of the sticky mat supported on the foot board.Type: ApplicationFiled: July 14, 2021Publication date: January 20, 2022Inventor: TIE-CHANG XIAO
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Publication number: 20220004260Abstract: Systems and methods are provided that relate to vibrational input elements configured to provide inputs to control an application executed by a mobile computing device. The vibrational input elements may produce distinct vibration patterns that are detectable by a sensor of the mobile computing device. The respective vibration patterns may correspond to one or more actions that may be performed in relation to the application.Type: ApplicationFiled: September 9, 2021Publication date: January 6, 2022Inventors: Chang Xiao, Karl Bayer, Shree K. Nayar, Changxi Zheng
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Publication number: 20210357075Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: detecting physical touch of a touch-sensitive component on a back portion of a client device, the client device displaying a graphical user interface on a touch-sensitive display screen of a front portion of the client device; in response to detecting the physical touch, transmitting an electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device to the touch-sensitive display screen of the front portion of the client device; and causing an operation associated with the graphical user interface to be executed in response to the touch-sensitive display screen receiving the electrical signal representing the physical touch of the touch-sensitive component on the back portion of the client device.Type: ApplicationFiled: May 12, 2021Publication date: November 18, 2021Inventors: Shree K. Nayar, Chang Xiao, Changxi Zheng
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Publication number: 20210351555Abstract: In some implementations, an optical isolator core includes a Faraday rotator and a plurality of birefringent crystal plates. The plurality of birefringent crystal plates may include a first birefringent crystal plate to separate input light into light having a first polarization and light having a second polarization, and a second birefringent crystal plate to combine the light having the first polarization and the light having the second polarization in output light that is laterally displaced by the single stage optical isolator. The Faraday rotator may be provided between the first birefringent crystal plate and the second birefringent crystal plate. In some implementations, the plurality of birefringent crystal plates further include a third birefringent crystal plate provided between the Faraday rotator and the second birefringent crystal plate.Type: ApplicationFiled: February 1, 2021Publication date: November 11, 2021Inventors: Jian CHEN, Chang XIAO, Xia HONG, Fangdong ZHAO
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Patent number: 11126266Abstract: Systems and methods are provided that relate to vibrational input elements configured to provide inputs to control an application executed by a mobile computing device. The vibrational input elements may produce distinct vibration patterns that are detectable by a sensor of the mobile computing device. The respective vibration patterns may correspond to one or more actions that may be performed in relation to the application.Type: GrantFiled: March 27, 2020Date of Patent: September 21, 2021Assignee: Snap Inc.Inventors: Chang Xiao, Karl Bayer, Shree K. Nayar, Changxi Zheng
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Patent number: 10755375Abstract: Disclosed are methods, systems, devices, apparatus, media, and other implementations, including a method that includes obtaining input visual data comprising a sequence of symbols, selected from a symbol set, with each of the symbols associated with a glyph representation. The method also includes obtaining a code message comprising code message symbols, and modifying at least one of the symbols of the input visual data to a different glyph representation associated with a respective at least one of the code message symbols to generate, at a first time instance, a resultant coded visual data.Type: GrantFiled: February 23, 2018Date of Patent: August 25, 2020Inventors: Changxi Zheng, Chang Xiao, Cheng Zhang
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Patent number: 10746933Abstract: A pump laser package may include an input fiber to send signal light on a first optical path inside a package, a source to send pump light on a second optical path inside the package, and an output fiber on a third optical path inside the package. The pump laser package may include a WDM filter inside the package to receive the signal light on the first optical path and send the signal light on the third optical path, and receive the pump light on the second optical path and send the pump light on the third optical path. The pump laser package may include an isolator inside the package to transmit the signal light in a first direction, and block the signal light in a second direction, or a photo-diode to receive a portion of the signal light sent on a fourth optical path.Type: GrantFiled: June 1, 2017Date of Patent: August 18, 2020Assignee: Lumentum Operations LLCInventors: Yonghong Guo, Nicolas Guerin, Chang Xiao, Xia Hong
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Publication number: 20190250336Abstract: A pump laser package may include an input fiber to send signal light on a first optical path inside a package, a source to send pump light on a second optical path inside the package, and an output fiber on a third optical path inside the package. The pump laser package may include a WDM filter inside the package to receive the signal light on the first optical path and send the signal light on the third optical path, and receive the pump light on the second optical path and send the pump light on the third optical path. The pump laser package may include an isolator inside the package to transmit the signal light in a first direction, and block the signal light in a second direction, or a photo-diode to receive a portion of the signal light sent on a fourth optical path.Type: ApplicationFiled: June 1, 2017Publication date: August 15, 2019Inventors: Yonghong GUO, Nicolas GUERIN, Chang XIAO, Xia HONG
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Publication number: 20180247386Abstract: Disclosed are methods, systems, devices, apparatus, media, and other implementations, including a method that includes obtaining input visual data comprising a sequence of symbols, selected from a symbol set, with each of the symbols associated with a glyph representation. The method also includes obtaining a code message comprising code message symbols, and modifying at least one of the symbols of the input visual data to a different glyph representation associated with a respective at least one of the code message symbols to generate, at a first time instance, a resultant coded visual data.Type: ApplicationFiled: February 23, 2018Publication date: August 30, 2018Inventors: Changxi ZHENG, Chang XIAO, Cheng ZHANG