Patents by Inventor Haitao Tu
Haitao Tu 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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Publication number: 20230381856Abstract: A method for preparing an aluminum carbon composite by using a foam aluminum includes the following steps. Electromagnetic stirring and drying are performed on the foam aluminum and a carbon material to obtain a foam aluminum preform; an aluminum block is melted into aluminum liquid, the aluminum liquid is adjusted to qualified aluminum liquid, the qualified aluminum liquid is cooled to a temperature of 620˜650° C. and keeping the temperature to make the qualified liquid aluminum become a semi-solid state, then the foam aluminum preform is pressed into the qualified liquid aluminum and performing electromagnetic stirring. A mold is heated to a certain temperature and extrusion molding is performed to obtain a carbon reinforced aluminum matrix composite material. The method overcomes a problem that the carbon material and the aluminum matrix have poor wettability and are not easy to be added into the aluminum matrix.Type: ApplicationFiled: May 6, 2023Publication date: November 30, 2023Inventors: Haitao Duan, Yinhua Li, Jiesong Tu, Xiaoming Wang, Lijun Zong, Dan Jia, Shengpeng Zhan, Tian Yang
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Publication number: 20230353393Abstract: The present disclosure discloses methods, apparatus, and storage medium for processing blockchain-based data. The method includes: creating a first world state corresponding to an initial block; updating the first world state according to transactions in the initial block to obtain an initial update state, and performing processing of constructing a clean state tree on the initial update state based on a world state chain to obtain an updated first world state including a clean present world state tree; writing a first world state root corresponding to the clean present world state tree into the initial block to obtain a to-be-on-chained block, writing the to-be-on-chained block into a blockchain when the to-be-on-chained block is approved by consensus, committing the updated first world state to a latest on-chain world state step by step via the world state chain, and determining the updated first world state as a new consensus root world state.Type: ApplicationFiled: July 6, 2023Publication date: November 2, 2023Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Haoming FENG, Zheming YAN, Haitao TU, Libao HE, Jiabao CHEN
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Publication number: 20230334009Abstract: A data archiving method includes: finding, in local space when an archiving task for a target block header exists, current state trees of block headers, the current state trees including a current state tree that the target block header points to and a current state tree that a first block header before the target block header points to; reconstructing new state trees according to the found current state trees, node reuse information between the current state trees, and target state data corresponding to a second block header after the target block header; and archiving the current state trees stored in the local space to a target archiving server, and deleting the current state trees in the local space after successful archiving.Type: ApplicationFiled: June 22, 2023Publication date: October 19, 2023Inventors: Haoming FENG, Haitao TU, Libao HE, Qiuping CHEN, Jiabao CHEN, Peng REN, Shuiping ZHOU, Yong ZHAO, He WANG
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Patent number: 11792006Abstract: A method for electing a representative node device is performed at a blockchain system, including: obtaining voting transaction data from the node devices, the voting transaction data being used for voting for one or more node devices of the blockchain system as representative node devices; generating and storing the voting transaction data into a target blockchain of the blockchain system when a plurality of node devices of the blockchain system verify the voting transaction data by consensus; and when a quantity of blocks in the target blockchain generated using the voting transaction data reaches a preset quantity, determining an election result according to quantities of votes of the node devices determined from the voting transaction data, the election result identifying a plurality of representative node devices in the blockchain system being configured to generate new blocks for the target blockchain and perform verification on the new blocks by consensus.Type: GrantFiled: October 1, 2020Date of Patent: October 17, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui Guo, Maocai Li, Zongyou Wang, Haitao Tu, Li Kong, Kaiban Zhou, Changqing Yang, Nan Wang, Yong Ding, Yifang Shi
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Patent number: 11775377Abstract: The present disclosure discloses a client device having a digital signature. The client device includes processing circuitry configured to send a message to be stored in nodes after the nodes reach a consensus on the message. The message includes the digital signature of the client device. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. The nodes are in a first consensus mode for reaching the consensus on the message. After verifying the digital signatures, the processing circuitry determines whether one or more of the nodes has malfunctioned based on the results. Based on a determination that the one or more of the nodes has malfunctioned, the processing circuitry triggers the nodes to switch from the first consensus mode to a second consensus mode for reaching the consensus on the message.Type: GrantFiled: December 6, 2021Date of Patent: October 3, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui Guo, Maocai Li, Qi Zhao, Jianjun Zhang, Haitao Tu, Zongyou Wang, Jun Liang, Dawei Zhu, Lisheng Chen, Binhua Liu
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Patent number: 11739424Abstract: A graphene reinforced aluminum matrix composite with high electrical conductivity and a preparation method thereof. The method includes: obtaining aluminum coated graphene powder by plating aluminum on a graphene surface, melting aluminum block into aluminum liquid, heating a mold to be lower than an aluminum melting point, alternately pouring the aluminum liquid and the aluminum coated graphene powder into the mold for layered casting to obtain a sandwich structure; extruding the sandwich structure into a rectangular test block and then heating to 500˜600° C., performing heat preservation for a preset time and performing forging treatment, and performing longitudinal cold deformation under inert gas to obtain the graphene reinforced aluminum matrix composite. The method can solve a problem that poor wettability of graphene and aluminum matrix, the graphene is evenly dispersed in the aluminum matrix, which can improve strength of the aluminum matrix and keep its high electrical conductivity.Type: GrantFiled: June 17, 2022Date of Patent: August 29, 2023Assignee: WUHAN RESEARCH INSTITUTE OF MATERIALS PROTECTIONInventors: Haitao Duan, Yinhua Li, Jiesong Tu, Jian Li, Xingeng Li, Zhibin Fan, Dan Jia, Shengpeng Zhan, Tian Yang, Yunhu Ding, Lixin Ma
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Patent number: 11702609Abstract: A method for improving lubricating performance of lubricating oils is provided and includes: adding copper phosphate with a porous structure into a base oil, a mass percent of the copper phosphate with the porous structure to the base oil is 0.0001% ˜50%, the porous structure is one of a foam porous structure and a porous nanoflower structure. The copper phosphate with the porous structure is obtained by adding a divalent copper salt solution into an alkaline disodium hydrogen phosphate solution or alkaline phosphoric acid buffer solution and then separating a precipitate. When a ratio of a concentration of a divalent copper ion to that of a phosphate ion is 1:0.1 to 400, the porous structure is porous foam or nanoflower. The porous structure can be well dispersed in the lubricating oil for 1 hour. After adding the lubricating oil, excellent friction reduction and anti-wear is achieved.Type: GrantFiled: June 21, 2022Date of Patent: July 18, 2023Assignee: WUHAN RESEARCH INSTITUTE OF MATERIALS PROTECTIONInventors: Haitao Duan, Linlin Duan, Dan Jia, Shengpeng Zhan, Tian Yang, Jiesong Tu
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Patent number: 11700113Abstract: This application discloses an audit result data storage method and device, an audit result data query method and device, an audit item storage method and device, an electronic device and a medium. The method includes obtaining a first hash value of audit result data of a first user; signing the first hash value according to a private key of the first user to obtain first signature data; and transmitting the first signature data to an audit result data storage subsystem, the audit result data storage subsystem being configured to store data in the form of a blockchain.Type: GrantFiled: March 21, 2022Date of Patent: July 11, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Dongyan Wang, Maocai Li, Bo Li, Haitao Tu
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Publication number: 20230214824Abstract: A second blockchain system receives a first consensus message from a first blockchain system, the first blockchain system includes first nodes that provide services to at least a first account, and the second blockchain system includes second nodes that provide services to at least a second account. The first consensus message indicates a first plurality of the first nodes reaches a consensus for transferring a resource from the first account to the second account. The second blockchain system transfers the resource in the task to the second account. The transferring includes that a node in the second nodes adds the resource to the second account and generates a fourth block that records a completion of a transfer event. A second consensus message is transmitted from the second blockchain system to the first blockchain system in response to a second plurality of the second nodes completing the transfer event.Type: ApplicationFiled: February 24, 2023Publication date: July 6, 2023Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui GUO, Maocai LI, Jun LIANG, Jianjun ZHANG, Zongyou WANG, Haitao TU, Qi ZHAO, Binhua LIU, Dawei ZHU, Qing QIN
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Patent number: 11645649Abstract: An apparatus including processing circuitry and a method are described. When receiving a cross-chain transaction request to transfer a resource from a first account to a second account, the processing circuitry is configured to generate a task corresponding to the first account. The task can indicate conditions for implementing events in transferring the resource. A first blockchain system provides services for the first account, and a second blockchain system different from the first blockchain system provides services for the second account. The processing circuitry transfers the resource to the second account based on the task when a first plurality of first nodes in the first blockchain system reaches a consensus on a generation event of the task and updates a task status of the task to being finished when a plurality of second nodes in the second blockchain system reaches a consensus on a transfer event of the resource.Type: GrantFiled: July 26, 2019Date of Patent: May 9, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui Guo, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Haitao Tu, Qi Zhao, Binhua Liu, Dawei Zhu, Qing Qin
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Publication number: 20230090296Abstract: A transaction transmitted by a user node in a blockchain network and transaction verification information corresponding to the to-be-verified transaction are acquired. The transaction verification information includes a state read set, a state write set, an initial transaction execution result, and a block identifier of a target block. A first block header of the target block includes the block identifier. A second block header is determined from a block header chain of a light node in the blockchain network. The state read set and the state write set are checked based on a first state snapshot in the second block header. The transaction service is executed to obtain a target transaction execution result corresponding to the transaction service and to-be-written state data. Legitimacy of the to-be-verified transaction is checked based on the initial transaction execution result, the target transaction execution result, the state write set, and the to-be-written state data.Type: ApplicationFiled: November 30, 2022Publication date: March 23, 2023Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Haoming FENG, Haitao TU, Libao HE, Qiuping CHEN, Jiabao CHEN, Peng REN, Shuiping ZHOU, Yong ZHAO, He WANG
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Patent number: 11570006Abstract: A transaction data processing method includes: receiving a first transaction document from a device of a transaction initiator, the first transaction document being associated with identity labels of a plurality of transaction participants; separately performing identity authentication on the plurality of transaction participants according to the identity labels of the plurality of transaction participants, to obtain an identity authentication result.Type: GrantFiled: April 27, 2020Date of Patent: January 31, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui Guo, Dongyan Wang, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Binhua Liu, Haitao Tu, Qing Qin, Bo Li
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Patent number: 11456864Abstract: The present disclosure discloses an information storage method performed at a server.Type: GrantFiled: March 15, 2019Date of Patent: September 27, 2022Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui Guo, Maocai Li, Wenwei Zou, Jianjun Zhang, Haitao Tu, Qi Zhao, Zongyou Wang, Jun Liang, Dawei Zhu, Binhua Liu
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Publication number: 20220216986Abstract: This application discloses an audit result data storage method and device, an audit result data query method and device, an audit item storage method and device, an electronic device and a medium. The method includes obtaining a first hash value of audit result data of a first user; signing the first hash value according to a private key of the first user to obtain first signature data; and transmitting the first signature data to an audit result data storage subsystem, the audit result data storage subsystem being configured to store data in the form of a blockchain.Type: ApplicationFiled: March 21, 2022Publication date: July 7, 2022Inventors: Dongyan WANG, Maocai LI, Bo LI, Haitao TU
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Patent number: 11316669Abstract: This application discloses an audit result data storage method and device, an audit result data query method and device, an audit item storage method and device, an electronic device and a medium. The method includes obtaining a first hash value of audit result data of a first user; signing the first hash value according to a private key of the first user to obtain first signature data; and transmitting the first signature data to an audit result data storage subsystem, the audit result data storage subsystem being configured to store data in the form of a blockchain.Type: GrantFiled: October 16, 2020Date of Patent: April 26, 2022Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Dongyan Wang, Maocai Li, Bo Li, Haitao Tu
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Publication number: 20220091918Abstract: The present disclosure discloses a client device having a digital signature. The client device includes processing circuitry configured to send a message to be stored in nodes after the nodes reach a consensus on the message. The message includes the digital signature of the client device. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. The nodes are in a first consensus mode for reaching the consensus on the message. After verifying the digital signatures, the processing circuitry determines whether one or more of the nodes has malfunctioned based on the results. Based on a determination that the one or more of the nodes has malfunctioned, the processing circuitry triggers the nodes to switch from the first consensus mode to a second consensus mode for reaching the consensus on the message.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui GUO, Maocai LI, QI ZHAO, Jianjun ZHANG, Haitao TU, Zongyou WANG, Jun LIANG, Dawei ZHU, Lisheng CHEN, Binhua LIU
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Publication number: 20220067730Abstract: A data processing method is provided for a processing node. The method includes: transmitting a data acquisition request to a data node to cause the data node performing a preprocessing operation on source data according to the data acquisition request, generating target data, and recording operation information of the preprocessing operation in an operation ledger; receiving the target data and the operation ledger; auditing the target data by using the operation ledger in an audit, to determine whether the preprocessing operation is a valid operation; and adding the target data to an aggregated data set when the target data passes the audit, the aggregated data set comprising a plurality of pieces of data that pass the audit, the plurality of pieces of data that pass the audit being provided to a business node, so that the business node provides a business service to a user.Type: ApplicationFiled: November 8, 2021Publication date: March 3, 2022Inventors: Dongyan WANG, Maocai LI, Zongyou WANG, Haitao TU, Qucheng LIU, Bo LI
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Patent number: 11237896Abstract: The present disclosure discloses a distributed system and a message processing method. The distributed system includes a client and a plurality of nodes. The client includes processing circuitry that is configured to send a message including a digital signature of the client. The distributed system is in a first consensus mode for reaching a consensus on the message. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. After verifying the digital signatures of the subset of the nodes, the processing circuitry of the client determines, based on the results, whether one or more of the nodes in the distributed system is malfunctioned.Type: GrantFiled: April 12, 2019Date of Patent: February 1, 2022Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Rui Guo, Maocai Li, Qi Zhao, Jianjun Zhang, Haitao Tu, Zongyou Wang, Jun Liang, Dawei Zhu, Lisheng Chen, Binhua Liu
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Patent number: 11214806Abstract: Disclosed is a marker for observing an effect of a compound or a drug on cells in real time. The marker is: 1) an amino acid sequence shown in SEQ No. 1 and/or SEQ No. 2; or 2) an amino acid sequence having a function for observing an effect of a compound or a drug on cells in real time and having at least more than 80%, preferably more than 85%, more preferably 90%, further preferably 95%, and most preferably 99% homology with the amino acid sequence shown in SEQ No. 1 and/or SEQ No. 2. Also disclosed is a method and a kit for observing an effect of a compound or a drug on cells in real time and use thereof.Type: GrantFiled: December 9, 2016Date of Patent: January 4, 2022Assignee: Foshan UniversityInventors: Shen Quan Pan, Qinghua Yang, Xiaoyang Li, Haitao Tu
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Publication number: 20210243037Abstract: This application provides an information processing method in digital asset certificate inheritance transfer, and a related apparatus. The method includes: obtaining a will of a user; and triggering, in response to that a signature made on the will by using a public key of the authoritative entity node is successfully verified by using a private key of the authoritative entity node, transmission of a signature made on at least one digital asset certificate in the will by using a public key of a corresponding inheritor personal security kernel node to the inheritor personal security kernel node corresponding to each inheritor personal security kernel node identifier in the will. In the embodiments of this application, the digital asset certificates of the user are uniformly maintained.Type: ApplicationFiled: April 22, 2021Publication date: August 5, 2021Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Dongyan WANG, Maocai LI, Bo LI, Haitao TU, Zongyou WANG