Patents by Inventor Chao LEI

Chao LEI 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: 20250247403
    Abstract: A signature generator has been designed that can create a malicious campaign signature with substantial coverage of malicious campaign behavior without impeding benign traffic. The malicious campaign signature generator uses data of multiple, known malicious campaigns to identify abused, benign network entities. The signature generator builds a graph data structure for each malicious campaign that represents the abused network entities. The relationships encoded in the graph data structure indicate the use of the combination of abused network entities in the campaign. The signature generator aggregates the graph data structures and identifies a combination of the benign network entities that were highly abused across the multiple malicious campaigns with respect to all of the abused network entities represented in the graph data structures. A signature is then created from the identifiers of this combination of highly abused network entities.
    Type: Application
    Filed: January 30, 2024
    Publication date: July 31, 2025
    Inventors: Zhanhao Chen, Chao Lei, Chien-Hua Lu, Daiping Liu
  • Patent number: 12367106
    Abstract: Embodiments are disclosed that provide space reclamation in immutable deduplication systems, and can include selecting a unit of data of a backup image, determining whether a duplicate unit of data is stored in an existing data storage construct (the duplicate unit of data is a duplicate of the unit of data and the existing data storage construct is stored in immutable storage), and in response to a determination that the duplicate unit of data exists in the existing data storage construct, determining whether the existing data storage construct is designated as being available to be referenced, in response to the existing data storage construct being designated as being available to be referenced, updating a reference to the duplicate unit of data, and in response to the existing data storage construct being designated as being unavailable to be referenced, storing the unit of data in a new data storage construct.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: July 22, 2025
    Assignee: Cohesity, Inc.
    Inventor: Chao Lei
  • Patent number: 12271357
    Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication. Such methods, computer program products, and computer systems can include, in response to receiving a request to perform a lookup operation, performing the lookup operation and, in response to the signature not being found, forwarding the request to a remote node. Further, in response to receiving an indication that the signature was not found at the remote node, processing the subunit of data as a unique subunit of data.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: April 8, 2025
    Assignee: Cohesity Inc.
    Inventors: Yong Yang, Xianbo Zhang, Weibao Wu, Chao Lei, Yafeng Wang, Haigang Wang, Lulu Wei
  • Publication number: 20250008444
    Abstract: The present disclosure provides a control method for a terminal device, a terminal device, and a storage medium, and belongs to the field of communication technologies. The method may include: determining whether there is an overlapping control channel unit between a to-be-detected control channel unit set and a target control channel unit set, wherein an aggregation level of the target control channel unit set is lower than an aggregation level of the to-be-detected control channel unit set; and if there is an overlapping control channel unit between the to-be-detected control channel unit set and the target control channel unit set, and that energy of the target control channel unit set is not higher than a predetermined energy threshold, then there being no need to perform energy detection on the to-be-detected control channel unit set.
    Type: Application
    Filed: August 25, 2022
    Publication date: January 2, 2025
    Inventors: Minggang GAO, Xuemei DING, Chao LEI, Hongli SUN
  • Publication number: 20240422044
    Abstract: Disclosed are a data transmitting method, a data receiving method, a network device and a non-transitory computer-readable storage medium. The data transmitting method may include: acquiring first data information and second data information; performing encoding processing on the first data information according to a first resource priority tag to obtain first encoded information, and performing encoding processing on the second data information according to a second resource priority tag to obtain second encoded information; performing signal modulation processing on the first encoded information to obtain first service information, and performing signal modulation processing on the second encoded information to obtain second service information, wherein the first service information comprises the first resource priority tag, and the second service information comprises the second resource priority tag; and transmitting the first service information and the second service information.
    Type: Application
    Filed: July 6, 2022
    Publication date: December 19, 2024
    Inventors: Minggang GAO, Xuemei DING, Chao LEI, Weiping LÜ
  • Publication number: 20240244519
    Abstract: Disclosed are a cell selection method, an electronic device, and a storage medium. The method may include: a list of resource blocks of a cell is obtained; the list of resource blocks is traversed, whether the current resource block is occupied is detected according to the energy of a reference signal in the current resource block and the energy of a time-frequency resource unit in the current resource block, and the number of occupied resource blocks in the cell is obtained; and a cell is selected according to the number of the occupied resource blocks and a signal measurement value of the cell.
    Type: Application
    Filed: March 21, 2022
    Publication date: July 18, 2024
    Inventors: Minggang GAO, Xuemei DING, Chao LEI, Mingye WEI
  • Publication number: 20240174700
    Abstract: Layered super-hydrophilic Ti—Cu-MOFs and a preparation method and use thereof provided, which relates to the technical field of composite materials. According to the present application, copper ions and titanium ions are used as bimetallic centers to have a coordination reaction with rigid aromatic amine ligands, and layered super-hydrophilic Ti—Cu-MOFs with a lamellar structure is efficiently synthesized. Compared with the prior technology, the preparation method of the present application is simple, and the morphology and structure are controllable; the surface of the prepared layered super-hydrophilic Ti—Cu-MOFs are rich in hydroxyl groups, and have high adsorption capacity for phospholipid co-extracts in clinical biological samples, and thus can be used for the analysis of phenothiazine drugs and metabolites thereof in biological samples and realize one-step separation and purification, thus greatly improving the pretreatment efficiency of clinical biological samples and shortening the analysis time.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Inventors: Yin LU, Yonggang ZHAO, Chao LEI, Mingli YE, Taziana SAVISKAYA, Andrei IVANIC
  • Patent number: 11834750
    Abstract: The present disclosure provides a method for generating ethylene by electrochemical selective hydrogenation of acetylene, including the following steps: continuously feeding acetylene gas into an organic solvent at a flow rate of 1 sccm to 50 sccm to obtain a solution; adding an electrolyte in the form of a solution or a solid such that the solution has an electrolyte concentration of 0.1 M to 3 M, a conductivity of 100 ?s·cm?1 to 500 ?s·cm?1, and a current density of 10 mA·cm?2 to 300 mA·cm?2; adding a hydrogen source such that the solution has a proton concentration of 0.1 M to 28 M; turning on an electrochemical treatment unit, and conducting constant-current or constant-potential electrolysis such that the acetylene gas is continuously and efficiently converted into ethylene gas after the electrolysis is stably conducted. The method has simple operations, low energy consumption, and quick response.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: December 5, 2023
    Assignee: HUNAN UNIVERSITY
    Inventors: Binbin Huang, Xuxu Wang, Xiaojia Lei, Chao Lei
  • Publication number: 20230350863
    Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication. Such methods, computer program products, and computer systems can include, in response to receiving a request to perform a lookup operation, performing the lookup operation and, in response to the signature not being found, forwarding the request to a remote node. Further, in response to receiving an indication that the signature was not found at the remote node, processing the subunit of data as a unique subunit of data.
    Type: Application
    Filed: July 5, 2023
    Publication date: November 2, 2023
    Inventors: Yong Yang, Xianbo Zhang, Weibao Wu, Chao Lei, Yafeng Wang, Haigang Wang, Lulu Wei
  • Publication number: 20230313390
    Abstract: The present disclosure provides a method for generating ethylene by electrochemical selective hydrogenation of acetylene, including the following steps: continuously feeding acetylene gas into an organic solvent at a flow rate of 1 sccm to 50 sccm to obtain a solution; adding an electrolyte in the form of a solution or a solid such that the solution has an electrolyte concentration of 0.1 M to 3 M, a conductivity of 100 µs·cm-1 to 500 µs·cm-1, and a current density of 10 mA·cm-2 to 300 mA·cm-2; adding a hydrogen source such that the solution has a proton concentration of 0.1 M to 28 M; turning on an electrochemical treatment unit, and conducting constant-current or constant-potential electrolysis such that the acetylene gas is continuously and efficiently converted into ethylene gas after the electrolysis is stably conducted.
    Type: Application
    Filed: March 13, 2023
    Publication date: October 5, 2023
    Applicant: Hunan University
    Inventors: Binbin Huang, Xuxu Wang, Xiaojia Lei, Chao Lei
  • Patent number: 11741060
    Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication in an efficient and effective manner. For example, such methods, computer program products, and computer systems can include receiving a data object at an assigned node, determining whether the data object includes a sub-data object, and processing the sub-data object. The assigned node is a node of a plurality of nodes of a cluster, where the data object includes a data segment, and a signature. The signature is generated based, at least in part, on data of the data segment. The processing includes sending the sub-data object to a remote node. The remote node is another node of the plurality of nodes of the cluster.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 29, 2023
    Assignee: Veritas Technologies LLC
    Inventors: Yong Yang, Xianbo Zhang, Weibao Wu, Chao Lei, Yafeng Wang, Haigang Wang, Lulu Wei
  • Publication number: 20220243339
    Abstract: Method for forming a membrane electrode assembly, include for example, providing a first layer membrane, a second layer membrane, an anode electrode, and a cathode electrode. The first layer membrane has a first thickness, the second layer membrane has a thickness less than the first thickness, and the second layer membrane contains a catalyst content that is greater than a catalyst content in the first layer membrane. The first layer membrane, the second layer membrane, the anode electrode, and the cathode electrode are formed into a membrane electrode assembly (MEA) comprising an exchange membrane having an interface between the first layer membrane and the second layer membrane. In some embodiments, may include a first and second lamination process, a single laminating process, a roll-to-roll process, and/or a casting process.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Applicant: PLUG POWER INC.
    Inventors: Fan YANG, Chao LEI, Arthur GRIFFITH, Robert STONE, Cortney MITTELSTEADT
  • Publication number: 20220243344
    Abstract: An exchange membrane includes, for example, a first layer membrane having a first thickness, a second layer membrane having a thickness less than the first thickness, and the second layer membrane containing a catalyst, a catalyst content in the second layer membrane being greater than a catalyst content in the first layer membrane, and the exchange membrane having an interface between the first layer membrane and the second layer membrane. In some embodiments, the membrane electrode assembly (MEA) includes the first layer membrane without a catalyst, and/or the exchange membrane includes a bi-layer exchange membrane.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Applicant: PLUG POWER INC.
    Inventors: Fan YANG, Chao LEI, Arthur GRIFFITH, Robert STONE, Cortney MITTELSTEADT
  • Publication number: 20210157777
    Abstract: Methods, computer program products, computer systems, and the like are disclosed that provide for scalable deduplication in an efficient and effective manner. For example, such methods, computer program products, and computer systems can include receiving a data object at an assigned node, determining whether the data object includes a sub-data object, and processing the sub-data object. The assigned node is a node of a plurality of nodes of a cluster, where the data object includes a data segment, and a signature. The signature is generated based, at least in part, on data of the data segment. The processing includes sending the sub-data object to a remote node. The remote node is another node of the plurality of nodes of the cluster.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Yong Yang, Xianbo Zhang, Weibao Wu, Chao Lei, Yafeng Wang, Haigang Wang, Lulu Wei
  • Patent number: 10915260
    Abstract: Disclosed herein are methods, systems, and processes to perform dual-mode deduplication based on backup history. A fingerprint of a data segment of a data stream is calculated and a determination is made as to whether the fingerprint of the data segment matches a corresponding fingerprint in a cache. If the fingerprint matches the corresponding fingerprint, another fingerprint of a subsequent data segment of the data stream is calculated. If the fingerprint does not match the corresponding fingerprint, a segment boundary of the data stream is calculated based on a hash value, a determination is made that a new fingerprint calculated based on the segment boundary does not match the corresponding fingerprint, segment boundaries and new fingerprints are calculated, and a determination is made that a first fingerprint matches another corresponding fingerprint in the cache.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 9, 2021
    Assignee: Veritas Technologies LLC
    Inventors: Chao Lei, Hui Yuan, Qing Fu Dong
  • Patent number: 10274215
    Abstract: Disclosed is a hybrid refrigeration full fresh air-conditioning unit, which achieves multistage cooling by means of the combination of a surface cooler cooling system, a refrigerant air-conditioning system and a direct expansion type air-conditioning system. The unit has an outdoor side mainly for cool water supply to a cooler (115) and conducting heat dissipation on a condenser (212) and an indoor side mainly for conducting multistage treatment of air entering a room. The indoor side and the outdoor side are connected to form a whole and are isolated via a panel. The refrigerant air-conditioning system cooperates with one or two of the other systems. Each system can independently operate or simultaneously operate together so that temperature and humidity control for all-weather can be provided, and their operation can be conducted in the most economical and environmental friendly manner under different temperature and humidity condition.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: April 30, 2019
    Assignee: Huizhou Hicool Climate Equipment Co., Ltd.
    Inventors: Ning Lei, Chao Lei, Baoqiang Li
  • Patent number: 9959179
    Abstract: The disclosed computer-implemented method for repairing corrupted data segments may include (1) detecting a corrupted data segment in a backup stored in a data storage system, (2) identifying at least one additional backup stored in the data storage system that exceeds a predetermined threshold for probability of comprising an uncorrupted version of the corrupted data segment, (3) matching at least a portion of a data segment in the additional backup with at least a portion of a data segment adjacent to the corrupted data segment in the backup, (4) locating, at least in part by examining data adjacent to the matched data segment in the additional backup, the uncorrupted version of the corrupted data segment, and (5) repairing the corrupted data segment in the backup by using the uncorrupted version of the corrupted data segment located in the additional backup. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: May 1, 2018
    Assignee: Veritas Technologies LLC
    Inventors: Junheng Yu, Chao Lei
  • Patent number: 9788246
    Abstract: A measurement initiation method for inter-frequency/inter-system cell reselection and UE thereof are described. A signal quality value of a current serving cell is obtained for many times, and a signal quality value smaller than or equal to a threshold of measurement initiation of a neighboring inter-frequency/inter-system cell is stored storing until L signal quality values are obtained; a mean signal quality value is obtained by calculation according to the obtained L signal quality values, and when the mean signal quality value is greater than a signal quality reference threshold, UE initiates the measurement of the neighboring inter-frequency/inter-system cell. By using the method and UE, the problem that UE frequently initiates measurement of a neighboring inter-frequency/inter-system cell even when UE does not move or moves a little can be solved, the power of the UE can be saved, and the radiation produced by the UE on a mobile user can be reduced.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: October 10, 2017
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO. LTD.
    Inventors: Lei Zhao, Tao Wan, Minggang Gao, Chao Lei, Hairong Ma
  • Patent number: 9619477
    Abstract: A computer-implemented method for accelerating backup operations may include (1) identifying a volume of data that may be stored by a computing system attached to a network and that may be designated for a backup to a deduplicated data store, (2) monitoring traffic on the network for at least one data object destined for the volume of data, (3) copying the data object from the traffic on the network and (4) seeding the deduplicated data store with the data object before the backup to the deduplicated data store. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 11, 2017
    Assignee: Veritas Technologies
    Inventors: Yong Tian, Yingsong Jia, Chao Lei, William Browning
  • Patent number: 9495379
    Abstract: The present disclosure provides for implementing a two-level fingerprint caching scheme for a client cache and a server cache. The client cache hit ratio can be improved by pre-populating the client cache with fingerprints that are relevant to the client. Relevant fingerprints include fingerprints used during a recent time period (e.g., fingerprints of segments that are included in the last full backup image and any following incremental backup images created for the client after the last full backup image), and thus are referred to as fingerprints with good temporal locality. Relevant fingerprints also include fingerprints associated with a storage container that has good spatial locality, and thus are referred to as fingerprints with good spatial locality. A pre-set threshold established for the client cache (e.g., threshold Tc) is used to determine whether a storage container (and thus fingerprints associated with the storage container) has good spatial locality.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: November 15, 2016
    Assignee: Veritas Technologies LLC
    Inventors: Xianbo Zhang, Haibin She, Chao Lei, Xiaobing Song, Shuai Cheng