Patents by Inventor Wenqian Liu
Wenqian 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).
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Publication number: 20240154964Abstract: This application discloses a device authentication method and system, and an apparatus, and relates to the field of communication technologies, to perform authentication on a terminal device. The system includes a first analyzer, a second analyzer, and a network device. The first analyzer sends a first authentication model to the second analyzer. The network device sends a transmission feature of a first terminal device to the second analyzer. The second analyzer performs authentication on the first terminal device based on the transmission feature of the first terminal and the first authentication model.Type: ApplicationFiled: January 19, 2024Publication date: May 9, 2024Inventors: Li Xue, Liang Zhang, Weiwang Xu, Wenqian Liu
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Patent number: 11929358Abstract: Provided is a display backplate including an array substrate and a plurality of pairs of connection structures on the array substrate, wherein the array substrate includes a plurality of thin-film transistors and a common electrode signal line, wherein at least one of the plurality of thin-film transistors is connected to one of a pair of connection structures and the common electrode signal line is connected to the other of the pair of connection structures; and an area of a first section of the connection structure is negatively correlated with a distance between the first section and a surface of the array substrate, and the first section is parallel to the surface of the array substrate.Type: GrantFiled: April 21, 2023Date of Patent: March 12, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhiwei Liang, Wenqian Luo, Yingwei Liu, Ke Wang, Qi Yao, Huijuan Wang, Haixu Li, Zhanfeng Cao, Guangcai Yuan, Xue Dong, Guoqiang Wang, Zhijun Lv
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Patent number: 11796237Abstract: A method of minimizing components of a heating, ventilation, and air conditioning (HVAC) system from malfunctioning, the method includes measuring, by an accelerometer associated with at least one component of the HVAC system, vibration of the at least one component and receiving, by a controller, actual vibration data reflective of the measured vibration. The method further includes determining, using the controller, whether the actual vibration data is greater than pre-defined acceptable baseline vibration data by more than a pre-defined acceptable amount and responsive to a positive determination in the determining step, adding, by the controller, as a deadband frequency, an operational frequency of the at least one component corresponding to the actual vibration data.Type: GrantFiled: June 14, 2021Date of Patent: October 24, 2023Assignee: Lennox Industries Inc.Inventors: Wenqian Liu, Umesh Gokhale, Eric Berg
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Patent number: 11754328Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: GrantFiled: January 26, 2023Date of Patent: September 12, 2023Assignee: Lennox Industries IncInventors: Eric Berg, Wenqian Liu, Umesh Gokhale, Srini Natarajan, Jeff Mangum
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Publication number: 20230175751Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: ApplicationFiled: January 26, 2023Publication date: June 8, 2023Applicant: Lennox Industries IncInventors: ERIC BERG, Wenqian Liu, Umesh Gokhale, Srini Natarajan, Jeff Mangum
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Publication number: 20230079312Abstract: Embodiments of this application disclose a traffic identification method and a traffic identification device. The method in embodiments of this application includes: The traffic identification device obtains to-be-analyzed traffic of a target data flow. The traffic identification device obtains arrival time intervals of packets of the to-be-analyzed traffic. The traffic identification device determines a type of the to-be-analyzed traffic based on a distribution feature of probabilities of a part or all of the arrival time intervals.Type: ApplicationFiled: October 28, 2022Publication date: March 16, 2023Inventors: Wenqian Liu, Xinyu Hu, Jun Wu
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Patent number: 11592225Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: GrantFiled: November 24, 2020Date of Patent: February 28, 2023Assignee: Lennox Industries Inc.Inventors: Eric Berg, Wenqian Liu, Umesh Gokhale, Srini Natarajan, Jeff Mangum
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Publication number: 20220163247Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Applicant: Lennox Industries Inc.Inventors: Eric BERG, Wenqian LIU, Umesh GOKHALE, Srini NATARAJAN, Jeff MANGUM
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Patent number: 11306928Abstract: A metering device is fluidly coupled to the condenser coil. A distributor is fluidly coupled to the metering device. An evaporator coil is fluidly coupled to the distributor via a plurality of evaporator circuit lines. A re-heat coil is disposed adjacent to the evaporator coil. The re-heat coil includes a first fluid connection to the metering device via a re-heat return line and a second re-heat feed line. The re-heat coil includes a second fluid connection to the condenser coil via a connecting line and a condenser intake line. A first check valve is disposed between the connecting line and the condenser intake line. A second check valve is disposed between the re-heat return line and the second re-heat feed line.Type: GrantFiled: September 10, 2020Date of Patent: April 19, 2022Assignee: Lennox Industries Inc.Inventors: Rakesh Goel, Wenqian Liu
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Patent number: 11255582Abstract: A method for cooling air in an HVAC system includes moving refrigerant through a closed refrigeration circuit having, inter alia, an expansion device subsystem, which includes a full-load pathway and at least one partial-load pathway and a flow selector for directing refrigerant flow from the condenser to either the partial-load pathway or the full-load pathway. The method also involves directing refrigerant flow from the condenser to the full-load pathway when the refrigerant pressure is greater than or equal to a first preselected activation pressure and stepping down a refrigerant pressure with a set orifice and directing refrigerant flow from the condenser to the partial-load pathway when the refrigerant pressure is less than a second preselected activation pressure and stepping down a refrigerant pressure with a variable expansion device configured for partial loads. Refrigerant is delivered from the full-load pathway or partial-load pathway to the evaporator.Type: GrantFiled: October 8, 2019Date of Patent: February 22, 2022Assignee: Lennox Industries Inc.Inventor: Wenqian Liu
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Publication number: 20210302086Abstract: A method of minimizing components of a heating, ventilation, and air conditioning (HVAC) system from malfunctioning, the method includes measuring, by an accelerometer associated with at least one component of the HVAC system, vibration of the at least one component and receiving, by a controller, actual vibration data reflective of the measured vibration. The method further includes determining, using the controller, whether the actual vibration data is greater than pre-defined acceptable baseline vibration data by more than a pre-defined acceptable amount and responsive to a positive determination in the determining step, adding, by the controller, as a deadband frequency, an operational frequency of the at least one component corresponding to the actual vibration data.Type: ApplicationFiled: June 14, 2021Publication date: September 30, 2021Applicant: Lennox Industries Inc.Inventors: Wenqian LIU, Umesh GOKHALE, Eric BERG
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Patent number: 11067322Abstract: A method of minimizing components of a heating, ventilation, and air conditioning (HVAC) system from malfunctioning, the method includes measuring, by an accelerometer associated with at least one component of the HVAC system, vibration of the at least one component and receiving, by a controller, actual vibration data reflective of the measured vibration. The method further includes determining, using the controller, whether the actual vibration data is greater than pre-defined acceptable baseline vibration data by more than a pre-defined acceptable amount and responsive to a positive determination in the determining step, adding, by the controller, as a deadband frequency, an operational frequency of the at least one component corresponding to the actual vibration data.Type: GrantFiled: January 30, 2019Date of Patent: July 20, 2021Assignee: Lennox Industries Inc.Inventors: Wenqian Liu, Umesh Gokhale, Eric Berg
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Publication number: 20200408426Abstract: A metering device is fluidly coupled to the condenser coil. A distributor is fluidly coupled to the metering device. An evaporator coil is fluidly coupled to the distributor via a plurality of evaporator circuit lines. Are-heat coil is disposed adjacent to the evaporator coil. The re-heat coil includes a first fluid connection to the metering device via a re-heat return line and a second re-heat feed line. The re-heat coil includes a second fluid connection to the condenser coil via a connecting line and a condenser intake line. A first check valve is disposed between the connecting line and the condenser intake line. A second check valve is disposed between the re-heat return line and the second re-heat feed line.Type: ApplicationFiled: September 10, 2020Publication date: December 31, 2020Applicant: Lennox Industries Inc.Inventors: Rakesh GOEL, Wenqian LIU
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Patent number: 10801742Abstract: A metering device is fluidly coupled to the condenser coil. A distributor is fluidly coupled to the metering device. An evaporator coil is fluidly coupled to the distributor via a plurality of evaporator circuit lines. A re-heat coil is disposed adjacent to the evaporator coil. The re-heat coil includes a first fluid connection to the metering device via a re-heat return line and a second re-heat feed line. The re-heat coil includes a second fluid connection to the condenser coil via a connecting line and a condenser intake line. A first check valve is disposed between the connecting line and the condenser intake line. A second check valve is disposed between the re-heat return line and the second re-heat feed line.Type: GrantFiled: April 9, 2018Date of Patent: October 13, 2020Assignee: Lennox Industries Inc.Inventors: Rakesh Goel, Wenqian Liu
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Publication number: 20200240689Abstract: A method of minimizing components of a heating, ventilation, and air conditioning (HVAC) system from malfunctioning, the method includes measuring, by an accelerometer associated with at least one component of the HVAC system, vibration of the at least one component and receiving, by a controller, actual vibration data reflective of the measured vibration. The method further includes determining, using the controller, whether the actual vibration data is greater than pre-defined acceptable baseline vibration data by more than a pre-defined acceptable amount and responsive to a positive determination in the determining step, adding, by the controller, as a deadband frequency, an operational frequency of the at least one component corresponding to the actual vibration data.Type: ApplicationFiled: January 30, 2019Publication date: July 30, 2020Applicant: Lennox Industries Inc.Inventors: Wenqian LIU, Umesh GOKHALE, Eric BERG
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Patent number: 10655877Abstract: According to certain embodiments, a system comprises a controller and an HVAC system with components comprising an evaporator unit comprising an evaporator coil, an indoor fan, and a discharge air duct and a condenser unit comprising a compressor, a condenser coil, and an outdoor fan. The system is configured to determine that a first or a second level of evaporator coil freeze risk is present and to communicate an instruction to the HVAC system with a first or a second action to counteract the freeze risk. For example, in certain embodiments, the actions comprise changing the indoor fan speed, changing the compressor speed, and changing the outdoor fan speed.Type: GrantFiled: January 22, 2018Date of Patent: May 19, 2020Assignee: Lennox Industries Inc.Inventors: Wenqian Liu, Zer Kai Yap, Marcus Troxell, William Clay Toombs
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Publication number: 20200033030Abstract: A heating, ventilation, air conditioning (HVAC) system includes a multi-path expansion device subsystem positioned between a condenser and an evaporator. The multi-path expansion device subsystem includes a flow selector operative to receive a refrigerant from the condenser and selectively deliver the same to a full-load pathway or to a partial-load pathway. The full-load pathway has a modulating valve and a fixed orifice sized for a full-load situation, and the partial-load pathway has a thermal expansion valve (TXV) sized for partial load operation. A controller uses an actuator of the flow selector to choose which pathway is authorized according to certain process logic. Other methods and systems are presented.Type: ApplicationFiled: October 8, 2019Publication date: January 30, 2020Inventor: Wenqian Liu
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Patent number: 10465949Abstract: A heating, ventilation, air conditioning (HVAC) system includes a multi-path expansion device subsystem positioned between a condenser and an evaporator. The multi-path expansion device subsystem includes a flow selector operative to receive a refrigerant from the condenser and selectively deliver the same to a full-load pathway or to a partial-load pathway. The full-load pathway has a modulating valve and a fixed orifice sized for a full-load situation, and the partial-load pathway has a thermal expansion valve (TXV) sized for partial load operation. A controller uses an actuator of the flow selector to choose which pathway is authorized according to certain process logic.Type: GrantFiled: July 5, 2017Date of Patent: November 5, 2019Assignee: Lennox Industries Inc.Inventor: Wenqian Liu
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Publication number: 20190309965Abstract: A metering device is fluidly coupled to the condenser coil. A distributor is fluidly coupled to the metering device. An evaporator coil is fluidly coupled to the distributor via a plurality of evaporator circuit lines. A re-heat coil is disposed adjacent to the evaporator coil. The re-heat coil includes a first fluid connection to the metering device via a re-heat return line and a second re-heat feed line. The re-heat coil includes a second fluid connection to the condenser coil via a connecting line and a condenser intake line. A first check valve is disposed between the connecting line and the condenser intake line. A second check valve is disposed between the re-heat return line and the second re-heat feed line.Type: ApplicationFiled: April 9, 2018Publication date: October 10, 2019Applicant: Lennox Industries Inc.Inventors: Rakesh Goel, Wenqian Liu
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Publication number: 20190226706Abstract: According to certain embodiments, a system comprises a controller and an HVAC system with components comprising an evaporator unit comprising an evaporator coil, an indoor fan, and a discharge air duct and a condenser unit comprising a compressor, a condenser coil, and an outdoor fan. The system is configured to determine that a first or a second level of evaporator coil freeze risk is present and to communicate an instruction to the HVAC system with a first or a second action to counteract the freeze risk. For example, in certain embodiments, the actions comprise changing the indoor fan speed, changing the compressor speed, and changing the outdoor fan speed.Type: ApplicationFiled: January 22, 2018Publication date: July 25, 2019Inventors: Wenqian Liu, Zer Kai Yap, Marcus Troxell, William Clay Toombs