Patents by Inventor Dongmei Zhu
Dongmei Zhu 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: 20230342256Abstract: The present disclosure relates to an incremental backup method and system for a CAD engineering data file, and the method includes: chunking historical CAD engineering data based on a sliding window approach, to determine a first data block group; calculating a first hash fingerprint value separately for each data block in the first data block group; chunking, based on the sliding window approach, CAD engineering data to be backed up, to determine a second data block group; calculating a second hash fingerprint value separately for each data block in the second data block group; and determining a backup status of the data block in the second data block group based on the first hash fingerprint value and the second hash fingerprint value. The present disclosure resolves a problem that a long time is occupied when a large-scale engineering CAD data file is saved by applying a full backup.Type: ApplicationFiled: April 24, 2023Publication date: October 26, 2023Inventors: Ketai HE, Xiaowei MENG, Yanxi LI, Dongmei ZHU, Cheng ZHAO
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Publication number: 20230304361Abstract: A petroleum drill-string shock absorber includes a drill collar nipple, a driving unit, an outer shell, a helical guideway, a drill bit base, a woven metal ring and a vibration-absorbing composite beam, the vibration-absorbing composite beam consists of a sheet metal and a flexible material gasket bonded by an adhesive; the drill collar nipple is connected with the helical guideway; the helical guideway is connected with the drill bit base; the driving unit rotates on the helical guideway; the outer shell is connected with the drill bit base; a metal seal ring is configured to seal a space formed between the outer shell and the drill collar nipple, a sealed space is formed among the drill collar nipple, the outer shell and the drill bit base; the woven metal ring is placed between the helical guideway and the drill bit base configured to absorb an axial impact vibration.Type: ApplicationFiled: March 22, 2022Publication date: September 28, 2023Applicants: University of Science and Technology Beijing, Shunde Graduate School, University of Science and Technology BeijingInventors: Haiping LIU, Qi LV, Dashan SHEN, Donghang HAN, Dongmei ZHU
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Patent number: 11595246Abstract: Restoration procedures in a Multimedia Broadcast Multicast Service (MBMS) network (also referred to as evolved MBMS (eMBMS) network) in case of a path failure.Type: GrantFiled: December 14, 2018Date of Patent: February 28, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Qi Xia, Yong Yang, Dongmei Zhu
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Patent number: 10623939Abstract: A method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: GrantFiled: December 10, 2018Date of Patent: April 14, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mei Dong, Zhiwei Qu, Yong Yang, Dongmei Zhu
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Publication number: 20190123957Abstract: Restoration procedures in a Multimedia Broadcast Multicast Service (MBMS) network (also referred to as evolved MBMS (eMBMS) network) in case of a path failure.Type: ApplicationFiled: December 14, 2018Publication date: April 25, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Qi XIA, Yong Yang, Dongmei Zhu
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Publication number: 20190110186Abstract: A method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: ApplicationFiled: December 10, 2018Publication date: April 11, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mei DONG, Zhiwei QU, Yong YANG, Dongmei ZHU
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Patent number: 10194310Abstract: A method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: GrantFiled: February 2, 2018Date of Patent: January 29, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mei Dong, Zhiwei Qu, Yong Yang, Dongmei Zhu
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Patent number: 10193743Abstract: The present invention relates generally to restoration procedures in a Multimedia Broadcast Multicast Service (MBMS) network (also referred to as evolved MBMS (eMBMS) network) in case of a path failure.Type: GrantFiled: April 16, 2014Date of Patent: January 29, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Qi Xia, Yong Yang, Dongmei Zhu
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Publication number: 20180160289Abstract: A method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: ApplicationFiled: February 2, 2018Publication date: June 7, 2018Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mei DONG, Zhiwei QU, Yong YANG, Dongmei ZHU
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Patent number: 9888374Abstract: The embodiments herein relate to a method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: GrantFiled: April 3, 2017Date of Patent: February 6, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Mei Dong, Zhiwei Qu, Yong Yang, Dongmei Zhu
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Patent number: 9867225Abstract: The embodiments herein relate to a method in a second CN node (205,407) for handling a failure in a communications network (200). The failure has caused communication between the second CN node (205, 407) and an old first CN node (203a) to become unavailable. The communication is associated with a session. When the failure has been detected, the second CN node transmits a session start request message to a new first CN node (203b, 405b, 410b). The session start request is a request to restore the session. The session start request message comprises a restoration flag indicating restoration of the session for a same service established before the failure and allowing a RAN node (201, 403) in the communications network (200) to accept the session start request message.Type: GrantFiled: April 15, 2014Date of Patent: January 9, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Qi Xia, Yong Yang, Dongmei Zhu
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Publication number: 20170205776Abstract: The embodiments herein relate to a method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: ApplicationFiled: April 3, 2017Publication date: July 20, 2017Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mei DONG, Zhiwei QU, Yong YANG, Dongmei ZHU
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Patent number: 9615241Abstract: The embodiments herein relate to a method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: GrantFiled: October 5, 2012Date of Patent: April 4, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mei Dong, Zhiwei Qu, Yong Yang, Dongmei Zhu
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Publication number: 20160072665Abstract: The present invention relates generally to restoration procedures in a Multimedia Broadcast Multicast Service (MBMS) network (also referred to as evolved MBMS (eMBMS) network) in case of a path failure.Type: ApplicationFiled: April 16, 2014Publication date: March 10, 2016Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Qi XIA, Yong YANG, Dongmei ZHU
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Publication number: 20160057801Abstract: The embodiments herein relate to a method in a second CN node (205,407) for handling a failure in a communications network (200). The failure has caused communication between the second CN node (205, 407) and an old first CN node (203a) to become unavailable. The communication is associated with a session. When the failure has been detected, the second CN node transmits a session start request message to a new first CN node (203b, 405b, 410b). The session start request is a request to restore the session. The session start request message comprises a restoration flag indicating restoration of the session for a same service established before the failure and allowing a RAN node (201, 403) in the communications network (200) to accept the session start request message.Type: ApplicationFiled: April 15, 2014Publication date: February 25, 2016Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Qi XIA, Yong YANG, Dongmei ZHU
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Publication number: 20150215768Abstract: The embodiments herein relate to a method in a mobility management node for handling information in a network. The node is associated with a wireless device being served by a serving network. The node obtains information about that at least one of the serving network and a time zone and a UCI, has been changed for the device, and information about that the change has not been transmitted to a SGW. When at least one of the serving network and the time zone and the UCI, has been changed, and information about the change has not been transmitted to the SGW, the node transmits the information about at least one of the changed serving network and time zone and UCI, to the SGW, enabling the SGW to forward this information to a PGW.Type: ApplicationFiled: October 5, 2012Publication date: July 30, 2015Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Mei Dong, Zhiwei Qu, Yong Yang, Dongmei Zhu
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Patent number: D1018603Type: GrantFiled: August 25, 2022Date of Patent: March 19, 2024Assignee: Foshan Alpicool Electric Appliance Co., LTD.Inventors: Junlong Zhu, Jingcheng Chen, Dongmei Zeng, Jianglong Shi