Patents by Inventor Qing Zeng
Qing Zeng 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: 20190301640Abstract: A flow control mechanism and a system comprising the mechanism, specifically relating to a microflow control mechanism and system. The mechanism comprises a base and a constant volume mechanism. The base and the constant volume mechanism are dynamically connected to form two or more relative activity states, comprising a first relative state and a second relative state. A fluid input end and a fluid receiving end are provided on the base. The constant volume mechanism is provided with a constant volume pipeline. In the first relative state, the fluid input end communicates with the constant volume pipeline. In the second relative state, the constant volume pipeline communicates with the fluid receiving end. The microflow control mechanism and system can achieve precise micro-scale fluid flow control, and have a simple structure.Type: ApplicationFiled: July 6, 2016Publication date: October 3, 2019Inventors: Tianxian ZHAO, Qing ZENG, Zhongman ZHANG, Amer EL-HAGE
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Publication number: 20180343199Abstract: The present application provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.Type: ApplicationFiled: August 2, 2018Publication date: November 29, 2018Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Qing Zeng, Xiaohu Xu
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Patent number: 10044615Abstract: The present application provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.Type: GrantFiled: December 16, 2015Date of Patent: August 7, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Qing Zeng, Xiaohu Xu
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Patent number: 9900242Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a performance-based routing method and device, which can implement exchange of a performance route by expanding a BGP protocol. A first PCR receives first performance routing information sent by a second PCR. The first performance routing information includes a first performance parameter attribute. It is determined whether a performance route corresponding to the first performance routing information exists in an adjacent routing information base-in Adj-RIB-in of the first PCR. The performance route is added to the Adj-RIB-in when the performance route does not exist in the Adj-RIB-in.Type: GrantFiled: March 27, 2014Date of Patent: February 20, 2018Assignee: Huawei Technologies Co., LtdInventors: Xiaohu Xu, Qing Zeng
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Publication number: 20170085528Abstract: Embodiments of the present disclosure provide a method and a device for storing and sending a MAC address entry, and a system. The method includes: sending, by a PE, a first packet to an RR, so that the RR determines a MAC address entry required by the PE according to the first packet, where the RR pre-stores a MAC address table, and the MAC address table includes the required MAC address entry; and receiving, by the PE, a packet which includes the required MAC address entry and is sent by the RR, and storing the required MAC address entry.Type: ApplicationFiled: December 6, 2016Publication date: March 23, 2017Inventors: Qing Zeng, Xiaohu Xu
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Patent number: 9531663Abstract: Embodiments of the present disclosure provide a method and a device for storing and sending a MAC address entry, and a system. The method includes: sending, by a PE, a first packet to an RR, so that the RR determines a MAC address entry required by the PE according to the first packet, where the RR pre-stores a MAC address table, and the MAC address table includes the required MAC address entry; and receiving, by the PE, a packet which includes the required MAC address entry and is sent by the RR, and storing the required MAC address entry. Through the embodiments of the present disclosure, it may be implemented that the PE stores the MAC address entry according to need.Type: GrantFiled: February 11, 2013Date of Patent: December 27, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Qing Zeng, Xiaohu Xu
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Patent number: 9521072Abstract: A method and network device for distributing Multi-Protocol Label Switching (MPLS) labels are provided by the present invention. The method for distributing the MPLS labels includes: a first device receives a Border Gateway Protocol (BGP) protocol message transmitted from a second device, wherein the BGP protocol message carries a service identifier of the second device; the first device establishes, according to the service identifier of the first device and the service identifier of the second device, a corresponding relationship between the first device and the second device; the first device distributes a MPLS label for the corresponding relationship. The present invention realizes that the MPLS labels are distributed for some type of the specific logical relationship between the two nodes in the BGP protocol, so that the network devices running the BGP protocol can efficiently obtain the MPLS label corresponding to the specific logical relationship.Type: GrantFiled: May 8, 2013Date of Patent: December 13, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTDInventors: Rui Gu, Guoyi Chen, Jie Dong, Qing Zeng
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Patent number: 9461908Abstract: A method of route convergence, a routing device, and a main control board in the routing device are provided herein. The method includes receiving route information from multiple neighbor routing devices; selecting a route among the received route information, and applying the selected route to update an FIB of the main control board; and delivering the selected route to an interface board after confirming that the route information from the multiple neighbor routing devices is received and the route selection is completed.Type: GrantFiled: July 20, 2009Date of Patent: October 4, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Chang Wang, Yong Li, Hui Ni, Yuan Rao, Zhengliang Li, Lei Fan, Xiaohui Liu, Qing Zeng
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Patent number: 9325616Abstract: The present invention provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.Type: GrantFiled: February 21, 2013Date of Patent: April 26, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Qing Zeng, Xiaohu Xu
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Publication number: 20160105362Abstract: The present application provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.Type: ApplicationFiled: December 16, 2015Publication date: April 14, 2016Inventors: Qing ZENG, Xiaohu XU
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Patent number: 9305887Abstract: A method of forming a seal ring structure includes the following steps. A substrate is provided, and the substrate includes a seal ring region. A metal stack is formed in the seal ring region. A first dielectric layer covering the metal stack is formed. A part of the first dielectric layer is removed to form an opening to expose the metal stack, and at least a side of the opening is not perpendicular to a top surface of the first dielectric layer. A conductive layer is formed to fill the opening. A second dielectric layer is formed to continuously cover the first dielectric layer and the conductive layer, and the second dielectric layer has a v-shaped surface totally overlapping the conductive layer.Type: GrantFiled: June 5, 2013Date of Patent: April 5, 2016Assignee: UNITED MICROELECTRONICS CORP.Inventors: Fan-Qing Zeng, Ching Hwa Tey, Xiaoqing Xu
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Patent number: 8953461Abstract: A method, device, and system for processing Border Gateway Protocol (BGP) route are provided, which relate to the field of network communication technologies. The method includes: receiving a BGP route sent by a BGP neighbor; obtaining a route prefix of the BGP route according to the BGP route; determining, according to the route prefix, a BGP route storing and processing module corresponding to the route prefix; and sending the BGP route to the determined BGP route storing and processing module, so that the BGP route storing and processing module processes the received BGP route. A device and a system for processing BGP route are also provided. Therefore, the processing efficiency of the BGP route is improved, and the high extensibility is realized.Type: GrantFiled: June 17, 2011Date of Patent: February 10, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Lixin Zhang, Shuanglong Chen, Yuan Rao, Lei Fan, Boyan Tu, Jianwen Liu, Jianbin Xu, Qing Zeng
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Publication number: 20140361438Abstract: A method of forming a seal ring structure includes the following steps. A substrate is provided, and the substrate includes a seal ring region. A metal stack is formed in the seal ring region. A first dielectric layer covering the metal stack is formed. A part of the first dielectric layer is removed to form an opening to expose the metal stack, and at least a side of the opening is not perpendicular to a top surface of the first dielectric layer. A conductive layer is formed to fill the opening. A second dielectric layer is formed to continuously cover the first dielectric layer and the conductive layer, and the second dielectric layer has a v-shaped surface totally overlapping the conductive layer.Type: ApplicationFiled: June 5, 2013Publication date: December 11, 2014Inventors: Fan-Qing Zeng, Ching Hwa Tey, Xiaoqing Xu
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Publication number: 20140237138Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a performance-based routing method and device, which can implement exchange of a performance route by expanding a BGP protocol. A first PCR receives first performance routing information sent by a second PCR. The first performance routing information includes a first performance parameter attribute. It is determined whether a performance route corresponding to the first performance routing information exists in an adjacent routing information base-in Adj-RIB-in of the first PCR. The performance route is added to the Adj-RIB-in when the performance route does not exist in the Adj-RIB-in.Type: ApplicationFiled: March 27, 2014Publication date: August 21, 2014Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaohu Xu, Qing Zeng
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Publication number: 20130250966Abstract: A method and network device for distributing Multi-Protocol Label Switching (MPLS) labels are provided by the present invention. The method for distributing the MPLS labels includes: a first device receives a Border Gateway Protocol (BGP) protocol message transmitted from a second device, wherein the BGP protocol message carries a service identifier of the second device; the first device establishes, according to the service identifier of the first device and the service identifier of the second device, a corresponding relationship between the first device and the second device; the first device distributes a MPLS label for the corresponding relationship. The present invention realizes that the MPLS labels are distributed for some type of the specific logical relationship between the two nodes in the BGP protocol, so that the network devices running the BGP protocol can efficiently obtain the MPLS label corresponding to the specific logical relationship.Type: ApplicationFiled: May 8, 2013Publication date: September 26, 2013Applicant: Huawei Technologies Co., LTDInventors: Rui Gu, Guoyi Chen, Jie Dong, Qing Zeng
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Publication number: 20130230049Abstract: The present invention provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.Type: ApplicationFiled: February 21, 2013Publication date: September 5, 2013Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Qing ZENG, Xiaohu XU
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Patent number: 8058573Abstract: An electronic apparatus comprises a main body, a front frame mounted on the main body, a transparent elastic press panel disposed between the main body and the front frame, a plurality of contacts beneath the elastic press panel, and a plurality of stop pieces disposed between the contacts respectively. The stop pieces divide the elastic press panel into portions corresponding to the contacts. Each portion of the elastic press panel can be pressed down independently for activating the corresponding contact.Type: GrantFiled: March 6, 2009Date of Patent: November 15, 2011Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Gao-Hui Tang, Yong-Qing Zeng
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Publication number: 20110242991Abstract: A method, device, and system for processing Border Gateway Protocol (BGP) route are provided, which relate to the field of network communication technologies. The method includes: receiving a BGP route sent by a BGP neighbor; obtaining a route prefix of the BGP route according to the BGP route; determining, according to the route prefix, a BGP route storing and processing module corresponding to the route prefix; and sending the BGP route to the determined BGP route storing and processing module, so that the BGP route storing and processing module processes the received BGP route. A device and a system for processing BGP route are also provided. Therefore, the processing efficiency of the BGP route is improved, and the high extensibility is realized.Type: ApplicationFiled: June 17, 2011Publication date: October 6, 2011Inventors: Lixin ZHANG, Shuanglong Chen, Yuan Rao, Lei Fan, Boyan Tu, Jianwen Liu, Jianbin Xu, Qing Zeng
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Patent number: 7744055Abstract: An electronic device comprises a back cover and a support. The back cover defines a first contact area. The support is pivoted to the back cover by a pivot shaft, defines a second contact area contacting the first contact area. A plurality of positioning holes are defined in and disposed on the second contact area around the pivot shaft. The electronic device further comprises at least one retractable spring balls projected from the first contact area of the back cover. The spring balls are configured for cooperating with the positioning holes of the support. The support can stay at a variety of positions.Type: GrantFiled: April 10, 2009Date of Patent: June 29, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Yong-Qing Zeng, Gao-Hui Tang, Chiang-Kuo Tang, Jun Yang
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Publication number: 20100012809Abstract: An electronic device comprises a back cover and a support. The back cover defines a first contact area. The support is pivoted to the back cover by a pivot shaft, defines a second contact area contacting the first contact area. A plurality of positioning holes are defined in and disposed on the second contact area around the pivot shaft. The electronic device further comprises at least one retractable spring balls projected from the first contact area of the back cover. The spring balls are configured for cooperating with the positioning holes of the support. The support can stay at a variety of positions.Type: ApplicationFiled: April 10, 2009Publication date: January 21, 2010Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen)CO.,LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: YONG-QING ZENG, GAO-HUI TANG, CHIANG-KUO TANG, JUN YANG