Patents by Inventor Xiaofei Xu
Xiaofei Xu 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: 11254612Abstract: A method of preparing a cement hydration product nano-thin film, the method including: (1) preparing a cement hydration product; (2) preparing a water sacrificial layer film; (3) depositing the cement hydration product obtained in (1) on the surface of the water sacrificial layer film obtained in (2) to obtain a cement hydration product film; and (4) immersing the cement hydration product film in a saturated aqueous solution of calcium hydroxide to dissolve the water sacrificial layer film to obtain a nano-thin film of the cement hydration product.Type: GrantFiled: April 23, 2020Date of Patent: February 22, 2022Assignee: WUHAN UNIVERSITYInventors: Shengwen Tang, Wei Zhou, Zhen He, Wenzhi Yu, Hubao A, Jingtao Chen, Xiang Ji, Xiaofei Xu
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Patent number: 11237345Abstract: This application discloses an optical backplane system, which includes a first upper-level optical interconnection module, a first lower-level optical interconnection module, and a second lower-level optical interconnection module. The first upper-level optical interconnection module includes M1 first interfaces and N1 second interfaces in connection relationships. The first lower-level optical interconnection module includes L1 third interfaces and K1 fourth interfaces in connection relationships. The second lower-level optical interconnection module includes L2 third interfaces and K2 fourth interfaces in connection relationships. The first upper-level optical interconnection module is connected to one of the L1 third interfaces of the first lower-level optical interconnection module by using one of the N1 second interfaces.Type: GrantFiled: May 29, 2020Date of Patent: February 1, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Daochun Mo, Qingzhi Liu, Xiaofei Xu, Wenyang Lei, Chuang Wang, Linchun Wang
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Publication number: 20210203588Abstract: This application discloses a data forwarding method and device. The method includes: obtaining a first data unit sequence stream by using a first logical ingress port, where the first data unit sequence stream includes at least one first data unit; determining, according to a preconfigured mapping relationship between at least one logical ingress port and at least one logical egress port, a first logical egress port corresponding to the first logical ingress port, where the at least one logical ingress port includes the first logical ingress port; adjusting a quantity of idle units in the first data unit sequence stream, so that a rate of an adjusted first data unit sequence stream matches a rate of the first logical egress port; and sending the adjusted first data unit sequence stream by using the first logical egress port.Type: ApplicationFiled: March 12, 2021Publication date: July 1, 2021Inventors: Qiwen ZHONG, Xiaojun ZHANG, Xiaofei XU
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Patent number: 11038664Abstract: Embodiments of the present invention disclose a method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes: obtaining, by a transmit end device, an original data stream; inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0; and sending the first data stream.Type: GrantFiled: July 7, 2020Date of Patent: June 15, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Qiwen Zhong, Xiaofei Xu, Xiaojun Zhang
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Publication number: 20210122674Abstract: A method of preparing a cement hydration product nano-thin film, the method including: (1) preparing a cement hydration product; (2) preparing a water sacrificial layer film; (3) depositing the cement hydration product obtained in (1) on the surface of the water sacrificial layer film obtained in (2) to obtain a cement hydration product film; and (4) immersing the cement hydration product film in a saturated aqueous solution of calcium hydroxide to dissolve the water sacrificial layer film to obtain a nano-thin film of the cement hydration product.Type: ApplicationFiled: April 23, 2020Publication date: April 29, 2021Inventors: Shengwen TANG, Wei ZHOU, Zhen HE, Wenzhi YU, Hubao A, Jingtao CHEN, Xiang JI, Xiaofei XU
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Patent number: 10955572Abstract: The present disclosure relates to a data processing method and device. The data processing method comprises steps of: performing detector response calibration based on a detector response obtained by an incidence of rays with known energy into a detector to obtain a detector response model; obtaining a photon counting model of the detector between incident energy spectrum data of the detector and detected energy spectrum data of the detector based on the detector response model; and performing a deconvolution operation on counts of photons in respective energy regions in the detected energy spectrum data of the detector based on the photon counting model of the detector, to obtain real counts of photons in respective energy regions in the incident energy spectrum data of the detector.Type: GrantFiled: September 21, 2018Date of Patent: March 23, 2021Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Li Zhang, Zhiqiang Chen, Sen Wang, Xiaofei Xu, Yuanjing Li, Xin Jin
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Patent number: 10951512Abstract: This application discloses a data forwarding method and device. The method includes: obtaining a first data unit sequence stream by using a first logical ingress port, where the first data unit sequence stream includes at least one first data unit; determining, according to a preconfigured mapping relationship between at least one logical ingress port and at least one logical egress port, a first logical egress port corresponding to the first logical ingress port, where the at least one logical ingress port includes the first logical ingress port; adjusting a quantity of idle units in the first data unit sequence stream, so that a rate of an adjusted first data unit sequence stream matches a rate of the first logical egress port; and sending the adjusted first data unit sequence stream by using the first logical egress port.Type: GrantFiled: November 27, 2018Date of Patent: March 16, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Qiwen Zhong, Xiaojun Zhang, Xiaofei Xu
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Patent number: 10942290Abstract: The present application discloses an X-ray detection system and method. The detection system includes: a beam source generator, first detectors, a second detector, a collimating device and a processor. The first detectors and the second detector are alternately arranged in a transmission direction of an object to be detected. The beam source generator emits a plurality of columns of beam signals, wherein each column of beam signals comprises a plurality of beam signals; the first detectors receive a plurality of columns of transmitted beam signals passing through the object; the collimating device performs a specificity selection from a plurality of columns of scattered beam signals passing through the object; the second detector receives scattered beam signals selected by the collimating device; and the processor determines a detection result of the object according to the plurality of columns of transmitted beam signals and the selected scattered beam signals.Type: GrantFiled: May 16, 2019Date of Patent: March 9, 2021Assignee: Nuctech Company limitedInventors: Li Zhang, Zhiqiang Chen, Yunda Sun, Xin Jin, Ming Chang, Xiaofei Xu
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Patent number: 10848344Abstract: The present disclosure relates to a service sending method and apparatus, and a service receiving method and apparatus. One example service sending method includes obtaining, by a network device, a first data stream and a second data stream, and inserting the first data stream into the second data stream to generate a third data stream. The third data stream includes a first information block and a second information block, the first information block is used to carry the first data stream, the second information block is used to carry a first data stream distribution indication map, the first data stream distribution indication map is used to indicate a location of the first information block, and the second information block is identified by using a preset map block type.Type: GrantFiled: December 31, 2018Date of Patent: November 24, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Qiwen Zhong, Xiaofei Xu, Xiaojun Zhang
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Publication number: 20200336283Abstract: Embodiments of the present invention disclose a method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes: obtaining, by a transmit end device, an original data stream; inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0; and sending the first data stream.Type: ApplicationFiled: July 7, 2020Publication date: October 22, 2020Inventors: Qiwen Zhong, Xiaofei Xu, Xiaojun Zhang
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Publication number: 20200328767Abstract: Embodiments of this application provide a data transmission method, a communications device, and a storage medium to reduce a quantity of cross-connections of an intermediate node in a network. In the embodiments of this application, Q first code block streams that are obtained are multiplexed into one second code block stream for transmission, a coding type of the first code block streams is M1/N1 bit coding, a coding type of the second code block stream is M2/N2 bit coding, and bits corresponding to code blocks in the Q first code block streams are carried in a payload area of a code block in the second code block stream. In other words, in the solutions provided by the embodiments of this application, the code block streams are multiplexed and demultiplexed based on a code block granularity.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Inventors: Qiwen ZHONG, Xiaofei Xu, Xiaojun Zhang, Lehong Niu
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Patent number: 10805107Abstract: The present disclosure relates to registration methods and devices. One example method includes obtaining, by a line card, line card information of the line card, the line card comprising a fabric interface chip optically interconnected to a switch fabric chip in at least one switch fabric card by using an optical fiber, and sending, by the line card, the line card information to the at least one switch fabric card through an optical interconnect path. The at least one switch fabric card registers the line card based on the line card information.Type: GrantFiled: March 27, 2019Date of Patent: October 13, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaofei Xu, Qingzhi Liu, Xiaojun Zhang, Linchun Wang, Jingzhou Yu
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Publication number: 20200292770Abstract: This application discloses an optical backplane system, which includes a first upper-level optical interconnection module, a first lower-level optical interconnection module, and a second lower-level optical interconnection module. The first upper-level optical interconnection module includes M1 first interfaces and N1 second interfaces in connection relationships. The first lower-level optical interconnection module includes L1 third interfaces and K1 fourth interfaces in connection relationships. The second lower-level optical interconnection module includes L2 third interfaces and K2 fourth interfaces in connection relationships. The first upper-level optical interconnection module is connected to one of the L1 third interfaces of the first lower-level optical interconnection module by using one of the N1 second interfaces.Type: ApplicationFiled: May 29, 2020Publication date: September 17, 2020Inventors: Daochun MO, Qingzhi LIU, Xiaofei XU, Wenyang LEI, Chuang WANG, Linchun WANG
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Publication number: 20200259745Abstract: A packet forwarding method and apparatus pertaining to the field of communications technologies are disclosed. The method includes: determining whether a current to-be-sent target packet is a header packet or a following packet in a burst sequence; when the target packet is the following packet in the burst sequence, obtaining port information of an egress port used to send the burst sequence, where the port information of the egress port is determined and stored when the header packet in the burst sequence is sent, and the burst sequence is a sequence including a plurality of packets that belong to a same service flow; and sending the target packet through the obtained egress port.Type: ApplicationFiled: March 5, 2020Publication date: August 13, 2020Inventors: Qiwen ZHONG, Xiaofei XU, Xiaojun ZHANG, Wenyang LEI
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Patent number: 10715306Abstract: A method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes obtaining, by a transmit end device, an original data stream, inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0, and sending the first data stream.Type: GrantFiled: February 22, 2019Date of Patent: July 14, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Qiwen Zhong, Xiaofei Xu, Xiaojun Zhang
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Publication number: 20200200941Abstract: The present application discloses an X-ray detection system and method. The detection system includes: a beam source generator, first detectors, a second detector, a collimating device and a processor. The first detectors and the second detector are alternately arranged in a transmission direction of an object to be detected. The beam source generator emits a plurality of columns of beam signals, wherein each column of beam signals comprises a plurality of beam signals; the first detectors to receive a plurality of columns of transmitted beam signals passing through the object; the collimating device performs a specificity selection from a plurality of columns of scattered beam signals passing through the object; the second detector receives scattered beam signals selected by the collimating device; and the processor determines a detection result of the object according to the plurality of columns of transmitted beam signals and the selected scattered beam signals.Type: ApplicationFiled: May 16, 2019Publication date: June 25, 2020Inventors: Li Zhang, Zhiqiang Chen, Yunda Sun, Xin Jin, Ming Chang, Xiaofei Xu
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Publication number: 20190222436Abstract: The present disclosure relates to registration methods and devices. One example method includes obtaining, by a line card, line card information of the line card, the line card comprising a fabric interface chip optically interconnected to a switch fabric chip in at least one switch fabric card by using an optical fiber, and sending, by the line card, the line card information to the at least one switch fabric card through an optical interconnect path. The at least one switch fabric card registers the line card based on the line card information.Type: ApplicationFiled: March 27, 2019Publication date: July 18, 2019Inventors: Xiaofei XU, Qingzhi LIU, Xiaojun ZHANG, Linchun WANG, Jingzhou YU
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Publication number: 20190190690Abstract: A method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes obtaining, by a transmit end device, an original data stream, inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0, and sending the first data stream.Type: ApplicationFiled: February 22, 2019Publication date: June 20, 2019Inventors: Qiwen Zhong, Xiaofei Xu, Xiaojun Zhang
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Publication number: 20190140861Abstract: The present disclosure relates to a service sending method and apparatus, and a service receiving method and apparatus. One example service sending method includes obtaining, by a network device, a first data stream and a second data stream, and inserting the first data stream into the second data stream to generate a third data stream. The third data stream includes a first information block and a second information block, the first information block is used to carry the first data stream, the second information block is used to carry a first data stream distribution indication map, the first data stream distribution indication map is used to indicate a location of the first information block, and the second information block is identified by using a preset map block type.Type: ApplicationFiled: December 31, 2018Publication date: May 9, 2019Inventors: Qiwen ZHONG, Xiaofei XU, Xiaojun ZHANG
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Publication number: 20190097914Abstract: This application discloses a data forwarding method and device. The method includes: obtaining a first data unit sequence stream by using a first logical ingress port, where the first data unit sequence stream includes at least one first data unit; determining, according to a preconfigured mapping relationship between at least one logical ingress port and at least one logical egress port, a first logical egress port corresponding to the first logical ingress port, where the at least one logical ingress port includes the first logical ingress port; adjusting a quantity of idle units in the first data unit sequence stream, so that a rate of an adjusted first data unit sequence stream matches a rate of the first logical egress port; and sending the adjusted first data unit sequence stream by using the first logical egress port.Type: ApplicationFiled: November 27, 2018Publication date: March 28, 2019Inventors: Qiwen ZHONG, Xiaojun ZHANG, Xiaofei XU