Patents by Inventor Tao Qian
Tao Qian 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: 11979436Abstract: A communication method comprises that if a policy control device does not support setup of an Internet Protocol (IP) multimedia subsystem (IMS) default bearer during setup of an IMS default bearer for a terminal, the control plane gateway sends second indication information to a user plane gateway, where the second indication information indicates the control plane gateway bypasses the policy control device. When the user plane gateway receives an IMS session request from the terminal and determines that the control plane gateway bypasses the policy control device, the user plane gateway sends first indication information to the control plane gateway, and the first indication information indicates the control plane gateway to send, to the policy control device, a first request to request to establish a mapping relationship between the terminal and the control plane gateway such that an IMS session can be set up between terminals.Type: GrantFiled: June 30, 2022Date of Patent: May 7, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zexu Huang, Guojun Wu, Fan Yang, Wenge Zhang, Tao Qian, Ridong Xu, Shubing Zhang
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Publication number: 20240135008Abstract: Computer-implemented methods, apparatuses and systems for obtaining data authorization are described. In an example method, a first computing node in a trusted computing center receives an authentication request from a first provider. Authentication information is returned to the first provider, where the authentication information comprises a first code hash of a first computing logic running in the first computing node. A channel establishment request sent by the first provider is received after determining that the first computing node passes trusted authentication and the first code hash passes correctness verification. A first trusted channel is established between the first provider and the first computing node according to the channel establishment request. A target encryption key is received through the first trusted channel, thereby authorization to perform computation on a target encrypted shard corresponding to the target encryption key based on the first computing logic is obtained.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Applicant: Alipay (Hangzhou) Information Technology Co., Ltd.Inventors: Wuqiong Pan, Tao Wei, Tingting Li, Zhongtian Qian, Tianyi Li, Zhenqiang Wei
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Publication number: 20240132120Abstract: A power decentralized electric locomotive apparatus includes an electric locomotive and a plurality of muck trucks. The electric locomotive and the plurality of muck trucks are connected in sequence, and a mater drive motor is fixedly mounted on the electric locomotive. A slave drive motor is fixedly mounted on at least one of the muck trucks; a torque of the slave drive motor is smaller than a torque of the mater drive motor; and the slave drive motor cooperates with the mater drive motor, to enable the muck truck to travel on rails and reduce drive power and self-weight of the electric locomotive.Type: ApplicationFiled: November 12, 2021Publication date: April 25, 2024Applicant: China Railway Engineering Services Co., Ltd.Inventors: Yuanshun Zhuang, Yang Deng, Caihong Li, Yuanyuan Mei, Wenju Chen, Longguan Zhang, Kaifu Li, Rui Han, Heng Li, Chuan Li, Jun Zheng, Yang Qian, Tao Du, Xudong Gao, Yuchen Wang, Chuanying Jiang, Jie Li
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Publication number: 20240115713Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.Type: ApplicationFiled: July 21, 2021Publication date: April 11, 2024Inventors: Gaoquan LI, Nian LIU, Yongchen PENG, Xiafan ZENG, Gang MEI, Sheng GUAN, Yang GAO, Shuai YANG, Yifeng YIN, Jie LOU, Huiyu CHEN, Kun QIAN, Yusong WEI, Qian ZHANG, Dajun LI, Xiaoling DING, Xiangwei YANG, Liqun HUANG, Xi LIU, Liwei LIU, Zhenwei LI, Kaixiong HU, Hua LIU, Tao TU
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Publication number: 20240092729Abstract: The present invention relates to a method for purifying key intermediates of Citalopram, i.e. 4-[4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl]-3-hydroxymethylbenzonitrile and a salt thereof. The method comprises dissolving crude 4-[4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl]-3-hydroxymethylbenzonitrile (compound of formula I containing formaldehyde impurity) with an organic solvent, adding a washing solution, controlling the temperature, stirring, leaving to stand for layering, and removing the aqueous layer, so as to obtain a purified organic solution of 4-[4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl]-3-hydroxymethylbenzonitrile. The method provided by the present invention can effectively remove aldehyde group-containing impurities in the intermediate. The method of the present invention has the advantages of simple operation, cheap raw materials and mild conditions, and is suitable for large-scale industrial production.Type: ApplicationFiled: December 28, 2021Publication date: March 21, 2024Applicants: ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD., Zhejiang Huahai LiCheng Pharmaceutical Co., Ltd.Inventors: Jian ZHANG, Jichao WANG, Xiangqian YOU, Liangwei QIAN, Tao ZHOU, Jiaxing HU, Wenfeng HUANG
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Patent number: 11933138Abstract: A sliding sleeve device has an outer cylinder, a circulation hole being provided in the wall of the outer cylinder; and an inner cylinder provided in an inner cavity of the outer cylinder. In an initial state, the inner cylinder and the outer cylinder are fixed to each other to seal the circulation hole. In a first state, the inner cylinder is movable relative to the outer cylinder, thereby unsealing the circulation hole. A protection mechanism is provided in the circulation hole, which has an inner member located on the radially inner side and an outer member located on the radially outer side.Type: GrantFiled: June 10, 2021Date of Patent: March 19, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC SOUTHWEST OIL & GAS COMPANYInventors: Zhimin Hou, Dan Hu, Qiang Wang, Yijun Zhou, Jiang Qian, Chen Chen, Tao Liu, Jianfa Ci, Wenfeng Pang, Wenjiang Teng
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Publication number: 20220337637Abstract: A communication method comprises that if a policy control device does not support setup of an Internet Protocol (IP) multimedia subsystem (IMS) default bearer during setup of an IMS default bearer for a terminal, the control plane gateway sends second indication information to a user plane gateway, where the second indication information indicates the control plane gateway bypasses the policy control device. When the user plane gateway receives an IMS session request from the terminal and determines that the control plane gateway bypasses the policy control device, the user plane gateway sends first indication information to the control plane gateway, and the first indication information indicates the control plane gateway to send, to the policy control device, a first request to request to establish a mapping relationship between the terminal and the control plane gateway such that an IMS session can be set up between terminals.Type: ApplicationFiled: June 30, 2022Publication date: October 20, 2022Inventors: Zexu Huang, Guojun Wu, Fan Yang, Wenge Zhang, Tao Qian, Ridong Xu, Shubing Zhang
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Patent number: 11163869Abstract: A method, a system and a computer program product are provided for identity authentication. A personal identity information indicative of an identity is received. A plurality of questions, is presented, each of the questions being related to an aspect of features of the password associated with the personal identity information. The A responsive answer is received to the questions including individual answers to the questions. The identity is authenticated in response to determining that the responsive answer is correct.Type: GrantFiled: October 27, 2017Date of Patent: November 2, 2021Assignee: International Business Machines CorporationInventors: Xin He, Qu Jiang, Tao Qian, Tan Sheng
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Patent number: 10452422Abstract: A method, a corresponding apparatus and device for deploying a virtual machine instance in order to lower requirements for a communication capability of a virtualized value-added server (VAS) and improve processing efficiency of a service chain, where the method includes obtaining communication relationships between a VAS instances and a service switch (SSW) instances from a service template, where the VAS instances and the SSW instances provide services in a service chain, and the service chain and the communication relationships between the VAS instances and the SSW instances are defined in the service template, and deploying, according to the communication relationships, an SSW instance and a VAS instance that need to communicate with each other in the SSW instances and the VAS instances on a same physical machine.Type: GrantFiled: June 29, 2017Date of Patent: October 22, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yueyun Lou, Jidong Zhang, Tao Qian, Meisheng Liu, Chuntao Wang
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Patent number: 10375703Abstract: Embodiments of the present invention disclose a resource allocation apparatus. The apparatus includes: a determining unit, configured to determine a quantity of resource blocks required by user equipment that needs to perform uplink transmission, where a quantity of resource blocks required by first user equipment that needs to perform uplink transmission and a quantity of resource blocks required by second user equipment that needs to perform uplink transmission are both M. The apparatus also includes an allocation unit, configured to allocate a resource block in a first subgroup in a first resource group to the first user equipment and allocate a resource block in a second subgroup in the first resource group to the second user equipment, where the first resource group includes multiple subgroups including the first subgroup and the second subgroup, and each subgroup includes M resource blocks.Type: GrantFiled: April 24, 2017Date of Patent: August 6, 2019Assignee: Huawei Technologies Co., Ltd.Inventor: Tao Qian
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Publication number: 20190130093Abstract: A method, a system and a computer program product are provided for identity authentication. A personal identity information indicative of an identity is received. A plurality of questions, is presented, each of the questions being related to an aspect of features of the password associated with the personal identity information. The A responsive answer is received to the questions including individual answers to the questions. The identity is authenticated in response to determining that the responsive answer is correct.Type: ApplicationFiled: October 27, 2017Publication date: May 2, 2019Inventors: Xin He, Qu Jiang, Tao Qian, Tan Sheng
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Patent number: 10104193Abstract: In one embodiment, a method of serving media includes receiving a request to serve a cacheable media content to a user equipment at a second media server deployed in a second layer2 access network. The request is received around when the user equipment is handed-off from a first layer2 node in a first layer2 access network to a second layer2 node in the second layer2 access network and when a streaming session of the cacheable media content to the user equipment from a first media server is terminated. The method further includes determining if the cacheable media content is stored in a cache of the second media server, and serving the cacheable media content from the cache of the second media server to the user equipment if the media content is stored in the cache of the second media server.Type: GrantFiled: August 12, 2016Date of Patent: October 16, 2018Assignee: Futurewei Technologies, Inc.Inventors: Sanqi Li, Tao Qian, Houxiao Han, Hongbo Tian, Kui Lin
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Publication number: 20170300352Abstract: A method, a corresponding apparatus and device for deploying a virtual machine instance in order to lower requirements for a communication capability of a virtualized value-added server (VAS) and improve processing efficiency of a service chain, where the method includes obtaining communication relationships between a VAS instances and a service switch (SSW) instances from a service template, where the VAS instances and the SSW instances provide services in a service chain, and the service chain and the communication relationships between the VAS instances and the SSW instances are defined in the service template, and deploying, according to the communication relationships, an SSW instance and a VAS instance that need to communicate with each other in the SSW instances and the VAS instances on a same physical machine.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Inventors: Yueyun Lou, Jidong Zhang, Tao Qian, Meisheng Liu, Chuntao Wang
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Publication number: 20170237798Abstract: In one embodiment, a method of serving media includes receiving a delivery log of traffic use after every first time interval for an user equipment. The user equipment is part of a hot billing class of users. The traffic use comprises data usage by the user equipment during communication with a media server in a layer2 access network. A user traffic information computed from the delivery log is transmitted to a billing center. A account status information is received from the billing center. The account status information is received if the user equipment exceeds a user account metric. A session termination information based on the account status information is transmitted.Type: ApplicationFiled: March 3, 2017Publication date: August 17, 2017Inventors: Sanqi Li, Tao Qian, Houxiao Han, Hongbo Tian, Kui Lin
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Publication number: 20170230987Abstract: Embodiments of the present invention disclose a resource allocation apparatus. The apparatus includes: a determining unit, configured to determine a quantity of resource blocks required by user equipment that needs to perform uplink transmission, where a quantity of resource blocks required by first user equipment that needs to perform uplink transmission and a quantity of resource blocks required by second user equipment that needs to perform uplink transmission are both M. The apparatus also includes an allocation unit, configured to allocate a resource block in a first subgroup in a first resource group to the first user equipment and allocate a resource block in a second subgroup in the first resource group to the second user equipment, where the first resource group includes multiple subgroups including the first subgroup and the second subgroup, and each subgroup includes M resource blocks.Type: ApplicationFiled: April 24, 2017Publication date: August 10, 2017Inventor: Tao Qian
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Patent number: 9723096Abstract: In one embodiment, a method of serving media includes receiving a request to serve media content to an user equipment, and receiving caching information regarding the media content. The caching information includes information regarding whether the media content requested by the user equipment is cacheable. A first media server is assigned from a hierarchical set of media servers to serve the user equipment if the media content to be served is cacheable. The hierarchical set of media servers includes a plurality of first type of media servers deployed in a plurality of layer2 (L2) access networks. The user equipment is coupled to the content delivery network through a layer2 access network of the plurality of L2 access networks.Type: GrantFiled: February 16, 2015Date of Patent: August 1, 2017Assignee: Futurewei Technologies, Inc.Inventors: Sanqi Li, Tao Qian, Houxiao Han, Hongbo Tian, Kui Lin
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Publication number: 20170201466Abstract: The present invention relates to a data packet processing apparatus located in a value-added-service (VAS) network. A transceiver module of the data packet processing apparatus receives a first data packet; a processing module determines, according to a load status of each VAS instance corresponding to each VAS type in a service chain that the first data packet is to go through, a service path that the first data packet is to go through the transceiver module sends the first data packet carrying a service path identifier to a data packet routing apparatus in the network, to instruct the data packet routing apparatus to route the first data packet according to the service path identified by the service path identifier. Load on each VAS instance is considered to avoid that load on devices in a same VAS type is uneven.Type: ApplicationFiled: March 28, 2017Publication date: July 13, 2017Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Wei LU, Han Zhou, Tao Qian
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Patent number: 9628579Abstract: In one embodiment, a method of serving media includes receiving a delivery log of traffic use after every first time interval for an user equipment. The user equipment is part of a hot billing class of users. The traffic use comprises data usage by the user equipment during communication with a media server in a layer2 access network. A user traffic information computed from the delivery log is transmitted to a billing center. A account status information is received from the billing center. The account status information is received if the user equipment exceeds a user account metric. A session termination information based on the account status information is transmitted.Type: GrantFiled: May 11, 2011Date of Patent: April 18, 2017Assignee: Futurewei Technologies, Inc.Inventors: Sanqi Li, Tao Qian, Houxiao Han, Hongbo Tian, Kui Lin
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Patent number: D861924Type: GrantFiled: June 15, 2018Date of Patent: October 1, 2019Assignee: ICAN Inc.Inventor: Tao Qian
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Patent number: D864425Type: GrantFiled: June 15, 2018Date of Patent: October 22, 2019Assignee: ICAN Inc.Inventor: Tao Qian