Patents by Inventor Xiangjun Xu

Xiangjun 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).

  • Publication number: 20250130944
    Abstract: The present disclosure provides a cache status recording method. The method is applied to a probe filter, wherein a host cache record table is configured in the probe filter, the host cache record table is used for recording a status of cache data of a host in a host cache and a peripheral sharing identifier corresponding to the cache data, the peripheral sharing identifier is used for indicating whether the cache data is shared by a peripheral device. The method includes: when the peripheral device shares the cache data in the host cache, updating the peripheral sharing identifier such that the peripheral sharing identifier indicates a corresponding cache data is shared by the peripheral device; and when a processor core exclusively owns the cache data, updating the peripheral sharing identifier such that the peripheral sharing identifier indicates the corresponding cache data is not shared by the peripheral device.
    Type: Application
    Filed: September 1, 2023
    Publication date: April 24, 2025
    Inventors: Xiangjun Xu, Jiaming Wei
  • Publication number: 20250124176
    Abstract: Embodiments of the present disclosure provide a key management method, a data protection method, a system, a chip, and a computer device, and the key management method includes: determining a plurality of memory regions that need to be encrypted and protected in a memory and a memory protocol of each memory region, in which the plurality of memory regions include at least one Compute Express Link (CXL) memory region based on a CXL memory protocol; determining, for each CXL memory region, a device identification and address information of the CXL memory region; generating protection key generation information of the CXL memory region according to the device identification and the address information of the CXL memory region; generating a protection key of the CXL memory region according to a system root key predetermined and the protection key generation information of the CXL memory region; generating a random number for the CXL memory region; and generating a data key of the CXL memory region according to th
    Type: Application
    Filed: September 1, 2023
    Publication date: April 17, 2025
    Inventor: Xiangjun Xu
  • Patent number: 12235183
    Abstract: The present invention relates to a motor braking performance testing device, comprising: a motor positioning mechanism, a linkage mechanism, a power supply, a speed detection module, a timing module, a standard data storage module, a data comparison module, a test result output module, and a control module. The power supply, the speed detection module, the timing module, the standard data storage module, the data comparison module and the test result output module are all electrically connected to the control module. The present invention has the advantages that the device can test the braking performance of high-speed motors such as motors of lawn mowers, and make test results more accurate.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: February 25, 2025
    Assignee: ZHEJIANG LINIX MOTOR CO., LTD
    Inventors: Shengwei Cao, Shan Du, Bingwen Ren, Zhubing Sun, Ganghao Guo, Xiangjun Xu, Hangdong Tang
  • Publication number: 20230349792
    Abstract: The present invention relates to a motor braking performance testing device, comprising: a motor positioning mechanism, a linkage mechanism, a power supply, a speed detection module, a timing module, a standard data storage module, a data comparison module, a test result output module, and a control module. The power supply, the speed detection module, the timing module, the standard data storage module, the data comparison module and the test result output module are all electrically connected to the control module. The present invention has the advantages that the device can test the braking performance of high-speed motors such as motors of lawn mowers, and make test results more accurate.
    Type: Application
    Filed: December 21, 2021
    Publication date: November 2, 2023
    Inventors: SHENGWEI CAO, SHAN DU, BINGWEN REN, ZHUBING SUN, GANGHAO GUO, XIANGJUN XU, HANGDONG TANG
  • Patent number: 11290875
    Abstract: The invention discloses a method for network configuration via Bluetooth, the method comprising: a Bluetooth communication device establishing a connection to a mobile terminal via Bluetooth; the Bluetooth communication device and the mobile terminal negotiating to determine a data encryption mode and a shared key for data decryption; connecting the Bluetooth communication device to an external wireless network; configuring the wireless network via Bluetooth is realized. According to the invention, during the process of network configuration via Bluetooth, a symmetric encryption method is utilized as the encryption mode for message data, and an asymmetric encryption method is utilized to generate the corresponding shared key, ensuring the data security during network configuration via Bluetooth and network communication processes.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 29, 2022
    Assignee: Espressif Systems (Shanghai) Co., Ltd.
    Inventors: Hao Tian, Swee Ann Teo, Xiangjun Xu
  • Publication number: 20210058770
    Abstract: The invention discloses a method for network configuration via Bluetooth, the method comprising: a Bluetooth communication device establishing a connection to a mobile terminal via Bluetooth; the Bluetooth communication device and the mobile terminal negotiating to determine a data encryption mode and a shared key for data decryption; connecting the Bluetooth communication device to an external wireless network; configuring the wireless network via Bluetooth is realized. According to the invention, during the process of network configuration via Bluetooth, a symmetric encryption method is utilized as the encryption mode for message data, and an asymmetric encryption method is utilized to generate the corresponding shared key, ensuring the data security during network configuration via Bluetooth and network communication processes.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 25, 2021
    Inventors: Hao Tian, Swee Ann Teo, Xiangjun XU
  • Patent number: 10561982
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 18, 2020
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Publication number: 20190344216
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10471383
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by ammonia-based process. The apparatus may include a first-stage waste heat recovery system a denitrification system, a dust removal and desulfurization system, a tail gas, exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include as deducting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: November 12, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu
  • Publication number: 20190282957
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu
  • Patent number: 10413865
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 17, 2019
    Assignee: Jiangnan Enviromental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10406478
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 10, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10399033
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 3, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Publication number: 20190209963
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10343110
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: July 9, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu
  • Publication number: 20190076780
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10213739
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 26, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu
  • Publication number: 20190054419
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Application
    Filed: October 23, 2018
    Publication date: February 21, 2019
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu
  • Patent number: 10173171
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 8, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu
  • Publication number: 20180339266
    Abstract: Apparatus and methods for denitrification and desulfurization of and dust removal from an FCC tail gas by an ammonia-based process. The apparatus may include a first-stage waste heat recovery system, a denitrification system, a dust removal and desulfurization system, a tail gas exhaust system, and an ammonium sulfate post-processing system. The dust removal and desulfurization system may include a dedusting tower and an absorption tower disposed separately. The top and the bottom of the absorption tower may be connected respectively to the tail gas exhaust system and the ammonium sulfate post-processing system. The absorption tower may include sequentially, from bottom to top, an oxidation section, an absorption section, and a fine particulate control section. The methods may be implemented with the apparatus.
    Type: Application
    Filed: March 28, 2018
    Publication date: November 29, 2018
    Inventors: Jing Luo, Jun Zhang, Yongying Luo, Qiang Tan, Xiangjun Xu