Patents by Inventor Qiao Liu

Qiao Liu 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: 20240133857
    Abstract: A device for on-site detection of soil organic matter, including a pre-processing module, a centrifugal system, a microfluidic chip, and a photoelectric detection module. The pre-processing module is configured to process a soil sample into a soil solution. The centrifugal system is configured to generate a centrifugal force. The microfluidic chip is configured to allow mixing of the soil solution and an extraction solvent for extraction under the centrifugal force to obtain an extract. The photoelectric detection module is configured to detect the extract to determine organic matter content in the soil solution. An on-site detection method and a microfluidic chip are also provided. The microfluidic chip includes a channel layer, a cover layer arranged above the channel layer, and a base plate layer arranged below the channel layer.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 25, 2024
    Inventors: Rujing WANG, Jiangning CHEN, Xiangyu CHEN, Yongjia CHANG, Qinwen LU, Yang LIU, Yi LIU, Qiao CAO, Xiaoyu ZHANG
  • Publication number: 20240125757
    Abstract: A device for detecting soil nutrients on site, including an extracting grid, an on-site real-time detection assembly and a transfer assembly for transferring a soil extract from the extracting grid to the on-site real-time detection assembly. A soil nutrient detection method using the device and a microfluidic chip are also provided. The microfluidic chip includes a cover plate and a base plate. The base plate includes a soil extract feeding groove, a quantitative feeding groove, a reagent storage groove, and a serpentine groove.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 18, 2024
    Inventors: Rujing WANG, Yongjia CHANG, Xiangyu CHEN, Qinwen LU, Jiangning CHEN, Qiao CAO, Yang LIU, Xiaoyu ZHANG, Jiahao XIAO, Hongyan GUO, Dapeng WANG
  • Patent number: 11799773
    Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: October 24, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Patent number: 11677587
    Abstract: A method includes a second provider edge (PE) device sending, to a first PE device, a media access control (MAC) route learned from a customer edge (CE) device, wherein the first PE device generates a MAC forwarding entry based on the MAC route, wherein the first PE device may forward, based on the MAC forwarding entry using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device, and wherein an outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: June 13, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Publication number: 20230034327
    Abstract: A network device receives a first uplink signal from a terminal device; the network device calculates a conjugate phase corresponding to the first uplink signal, and determines, based on the conjugate phase, a narrow beam whose direction of arrival is opposite to a direction of arrival of the first uplink signal as a target transmit beam aligned between the network device and the terminal device; and the network device communicates with the terminal device by using the target transmit beam.
    Type: Application
    Filed: October 14, 2022
    Publication date: February 2, 2023
    Inventors: Qiao Liu, Guangjian Wang
  • Publication number: 20220360527
    Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Application
    Filed: June 6, 2022
    Publication date: November 10, 2022
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Publication number: 20220285038
    Abstract: A prediction method, an electronic device and a storage medium are provided. The method includes that: substance features of a substance to be tested are determined according to a molecular structure of the substance to be tested; feature extraction is performed on a diseased cell of a target category to obtain at least one cell feature of the diseased cell; and a response result of the substance to be tested against the diseased cell is predicted according to the substance features and the at least one cell feature.
    Type: Application
    Filed: May 9, 2022
    Publication date: September 8, 2022
    Inventors: Qiao LIU, Zhiqiang HU
  • Publication number: 20220271974
    Abstract: A method includes a second provider edge (PE) device sending, to a first PE device, a media access control (MAC) route learned from a customer edge (CE) device, wherein the first PE device generates a MAC forwarding entry based on the MAC route, wherein the first PE device may forward, based on the MAC forwarding entry using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device, and wherein an outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Application
    Filed: March 17, 2022
    Publication date: August 25, 2022
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Patent number: 11394644
    Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: July 19, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Patent number: 11310079
    Abstract: A method includes a second provider edge (PE) device sending, to a first PE device, a media access control (MAC) route learned from a customer edge (CE) device, wherein the first PE device generates a MAC forwarding entry based on the MAC route, wherein the first PE device may forward, based on the MAC forwarding entry using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device, and wherein an outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: April 19, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Publication number: 20220103475
    Abstract: A route processing method, implemented by a first device, includes: receiving a first route sent by a second network device, where the first route includes a first identifier; allocating, based on the first identifier, a second identifier corresponding to the first route; and sending a second route to a third network device based on the first route, where the second route includes the second identifier. The second network device is located in a first network domain, and the third network device is located in a second network domain.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 31, 2022
    Inventors: Lanlan Zhan, Weibo Wang, Qiao Liu
  • Patent number: 11025154
    Abstract: A gate driving circuit for a charge pump with slowed rates of current change for reduced EMI emissions includes at least one gate driving sub-circuit. Each gate driving sub-circuit includes a first current mirror, a first PMOS transistor, a first NMOS transistor, and a second current mirror. Gates of the first PMOS transistor and the first NMOS transistor receive a clock signal. Drains of the first PMOS transistor and the first NMOS transistor output a driving signal. When the first PMOS transistor is turned on, the first current mirror provides a charging current. When the first NMOS transistor is turned on, the second current mirror provides a discharge current.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: June 1, 2021
    Assignee: FocalTech Electronics (Shenzhen) Co., Ltd.
    Inventor: Jun-Qiao Liu
  • Publication number: 20210057982
    Abstract: A gate driving circuit for a charge pump with slowed rates of current change for reduced EMI emissions includes at least one gate driving sub-circuit. Each gate driving sub-circuit includes a first current mirror, a first PMOS transistor, a first NMOS transistor, and a second current mirror. Gates of the first PMOS transistor and the first NMOS transistor receive a clock signal. Drains of the first PMOS transistor and the first NMOS transistor output a driving signal. When the first PMOS transistor is turned on, the first current mirror provides a charging current. When the first NMOS transistor is turned on, the second current mirror provides a discharge current.
    Type: Application
    Filed: May 7, 2020
    Publication date: February 25, 2021
    Inventor: JUN-QIAO LIU
  • Publication number: 20200014557
    Abstract: The method includes the following steps: The second PE device sends, to the first PE device, a MAC route learned from the CE device. The first PE device generates a MAC forwarding entry based on the MAC route. The first PE device may forward, based on the MAC forwarding entry by using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device. According to the method in this application, load can be effectively shared between the second PE device and the first PE device, and system bandwidth resources can be properly used.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 9, 2020
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Publication number: 20200014623
    Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 9, 2020
    Inventors: Haibo Wang, Shunwan Zhuang, Qiao Liu
  • Patent number: 10440720
    Abstract: A co-channel interference cancellation method and apparatus are provided. The method includes: obtaining effective interference by filtering co-channel interference according to a preset interference strength threshold, and obtaining a plurality of effective interference subgroups by grouping the effective interference; obtaining a reference interference sub-signal corresponding to the effective interference subgroup, by delaying a reference interference signal according to a determined interference delay of each effective interference subgroup; after each reference interference sub-signal passes through a corresponding adaptive interference reconstruction filter, obtaining a reconstructed interference signal by overlaying each reference interference sub-signal; and performing a subtraction operation on a received signal and the reconstructed interference signal. In this way, spectrum consumption is greatly reduced, and implementation is simple.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: October 8, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qiao Liu, Xiaodong Li
  • Patent number: 10129071
    Abstract: The present disclosure provides a symbol synchronization method and apparatus. By means of the symbol synchronization method and apparatus, a timing location is adjusted outside an adaptive loop. In addition, the adaptive loop proceeds to according to an original function of the adaptive loop. That is, the timing location is stabilized to an initial symbol-synchronization location, and the timing location is then further corrected and adjusted. Therefore, impact of an error of a timing location on symbol synchronization is eliminated by correcting the timing location, and positioning accuracy of a symbol-synchronization location is improved.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: November 13, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaodong Li, Qiao Liu
  • Publication number: 20180249472
    Abstract: Embodiments of the present invention disclose a co-channel interference cancellation method and apparatus. The method includes: obtaining effective interference by filtering co-channel interference according to a preset interference strength threshold, and obtaining a plurality of effective interference subgroups by grouping the effective interference; obtaining a reference interference sub-signal corresponding to the effective interference subgroup, by delaying a reference interference signal according to a determined interference delay of each effective interference subgroup; after each reference interference sub-signal passes through a corresponding adaptive interference reconstruction filter, obtaining a reconstructed interference signal by overlaying each reference interference sub-signal; and performing a subtraction operation on a received signal and the reconstructed interference signal. In this way, spectrum consumption is greatly reduced, and implementation is simple.
    Type: Application
    Filed: April 26, 2018
    Publication date: August 30, 2018
    Inventors: Qiao LIU, Xiaodong LI
  • Patent number: D953512
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: May 31, 2022
    Inventor: Qiao Liu
  • Patent number: D987205
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: May 23, 2023
    Inventor: Qiao Liu