Patents by Inventor Yanfeng Lu
Yanfeng Lu 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: 20240128535Abstract: A battery assembly, a battery pack and a vehicle are provided. The battery assembly includes: multiple cells; a connecting member, where the cells is electrically connected to each other through the connecting member; and a thermally conductive member, where the cell has a housing, the thermally conductive member is provided between the connecting member and the housing, and the thermally conductive member is thermally conductively connected to the connecting member and the housing.Type: ApplicationFiled: December 7, 2023Publication date: April 18, 2024Inventors: Yuanmao SHU, Yanfeng WU, Weixin ZHENG, Zhipei LU, Huajun SUN
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Publication number: 20230072645Abstract: The invention relates to a floor. The polymer solid wood composite flooring includes a SPC stone plastic layer, and a solid wood veneer layer or plywood layer forming the main body of the floor is arranged under the SPC stone plastic layer; the physical and chemical performance index of the polymer solid wood composite flooring is: color fastness?Grade 6; average peel strength?75 (N/50 mm), pollution resistance?grade 5, heating dimensional change rate?0.25%, heating warpage?2.0 mm, moisture content 6-10%. The preparation process of polymer solid wood composite flooring includes: preparation of SPC stone plastic layer; preparation of solid wood veneer layer or plywood layer; composite pressing; first balance treatment; Slitting; second balance treatment; slotting; UV layer preparation. Thereby, the polymer solid wood composite flooring with good foot feeling, not easy to deform and crack, and small dimensional change rate is produced.Type: ApplicationFiled: November 15, 2021Publication date: March 9, 2023Inventors: LIUSHUN NI, RONG DU, CHUNLI FANG, XIANXU ZHAN, YINYOU LIN, LIPING ZHANG, RONGJIA CHENFANG, YANFENG LU
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Patent number: 11194356Abstract: Techniques for efficient operation of a linear stage in an H-bridge system are provided. In an example, a linear stage can switch between voltage regulation and current regulation over a range of a command signal. The particular regulation mode can depend on the regulation mode of a switched stage of the H-bridge system. Efficiency can be realized by using current regulation of the linear stage when the output voltage of the linear stage moves away from the voltage of a supply rail. Such a control scheme can reduce the voltage across the linear stage for a larger range of the command signal resulting in less heat dissipation of the linear stage compared to conventional control of H-bridge linear stages.Type: GrantFiled: May 28, 2020Date of Patent: December 7, 2021Assignee: Analog Devices International Unlimited CompanyInventors: Fu Sun, Xiaohua Su, Stephen Todd Van Duyne, Yanfeng Lu, Mathew Todd Wich
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Publication number: 20200409400Abstract: Techniques for efficient operation of a linear stage in an H-bridge system are provided. In an example, a linear stage can switch between voltage regulation and current regulation over a range of a command signal. The particular regulation mode can depend on the regulation mode of a switched stage of the H-bridge system. Efficiency can he realized by using current regulation of the linear stage when the output voltage of the linear stage moves away from the voltage of a supply rail. Such a control scheme can reduce the voltage across the linear stage for a larger range of the command signal resulting in less heat dissipation of the linear stage compared to conventional control of H-bridge linear stages.Type: ApplicationFiled: May 28, 2020Publication date: December 31, 2020Inventors: Fu Sun, Xiaohua Su, Stephen Todd Van Duyne, Yanfeng Lu, Mathew Todd Wich
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Publication number: 20190386504Abstract: The subject disclosure provides for harvesting energy and converting the harvested energy with high efficiency for multiple power rails to a system load. For example, harvested energy is converted to a regulated output for a first power rail when the harvested energy satisfies a maximum power point tracking (MPPT) threshold, where the MPPT threshold corresponds to a high conversion efficiency. When the harvested energy drops below the MPPT threshold, the regulated output can be driven with stored energy associated with a second power rail from a super capacitor charged with the harvested energy during a high efficiency phase. This helps maintain the high conversion efficiency at the regulated output. In the event that the super capacitor does not have sufficient stored energy, a backup battery may drive the regulated output associated with a third power rail while still maintaining the high conversion efficiency at the regulated output.Type: ApplicationFiled: June 18, 2018Publication date: December 19, 2019Inventors: Suyi YAO, Yanfeng Lu, Ruo Mo
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Patent number: 10170929Abstract: Apparatus and techniques described herein can include a load circuit comprising a direct current (DC) input terminal, and a source circuit comprising a direct current (DC) output terminal coupled to the DC input terminal of the load circuit. The source circuit can include a source control circuit configured to provide a current-limited DC output voltage and monitor the current-limited DC output voltage to detect an authentication signal provided at the DC output terminal by the load circuit, the load circuit configured to modulate the voltage at the DC output terminal using a pull-down circuit. The load circuit can be configured to compare the supply voltage at the DC input terminal to a reference voltage and, in response, energize other portions of the load circuit when the input current provided the DC input terminal is sufficient as indicated at least in part by the comparison.Type: GrantFiled: February 1, 2016Date of Patent: January 1, 2019Assignee: Analog Devices GlobalInventors: Bin Shao, Yanfeng Lu, Scott D. Biederwolf
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Patent number: 9825584Abstract: Apparatus and techniques for controlling measurement of an electrical parameter of an energy source can be used to obtain information for use in enhancing a power transfer efficiency between the energy source and a load. For example, during a first measurement cycle, information indicative of the electrical parameter of the energy source can be obtained using a measurement circuit during a first sampling duration in which the load is decoupled from the energy source. The information indicative of the obtained electrical parameter can be compared to a threshold. In response to the comparing, a different second sampling duration can be determined for use in obtaining information indicative of the electrical parameter during a subsequent measurement cycle. The information indicative of the electrical parameter of the energy source includes information for use in enhancing the power transfer efficiency between the energy source and the load.Type: GrantFiled: December 5, 2013Date of Patent: November 21, 2017Assignee: Analog Devices, Inc.Inventors: Bin Shao, Yanfeng Lu, Hua-Jung Yang
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Publication number: 20170201091Abstract: Apparatus and techniques described herein can include a load circuit comprising a direct current (DC) input terminal, and a source circuit comprising a direct current (DC) output terminal coupled to the DC input terminal of the load circuit. The source circuit can include a source control circuit configured to provide a current-limited DC output voltage and monitor the current-limited DC output voltage to detect an authentication signal provided at the DC output terminal by the load circuit, the load circuit configured to modulate the voltage at the DC output terminal using a pull-down circuit. The load circuit can be configured to compare the supply voltage at the DC input terminal to a reference voltage and, in response, energize other portions of the load circuit when the input current provided the DC input terminal is sufficient as indicated at least in part by the comparison.Type: ApplicationFiled: February 1, 2016Publication date: July 13, 2017Inventors: Bin Shao, Yanfeng Lu, Scott D. Biederwolf
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Patent number: 9673696Abstract: At least one embodiment provides a method for a nanopower boost regulator to startup from an ultra-low-voltage (such as 0.3V˜0.5V) for energy harvesting applications. The method does not necessarily require a special process or any external components such as mechanical switches. The startup circuit can include an asynchronous boost circuit to charge up an output with stacked power NMOS transistors, a ring oscillator, and/or a charge pump, along with accompanying circuitry.Type: GrantFiled: October 18, 2013Date of Patent: June 6, 2017Assignee: ANALOG DEVICES TECHNOLOGYInventors: Yanfeng Lu, Bin Shao
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Patent number: 9531262Abstract: This application discusses, among other things apparatus and methods for a voltage boost circuit. In an example, a voltage boost circuit can include first and second inverters, sharing a first supply node, and sharing a second supply node, a first charge transfer capacitor, configured to couple a first clock signal to the first inverter output, a second charge transfer capacitor, configured to couple a second clock signal to the second inverter output, the second clock signal being out-of-phase with the first clock signal, a first gate drive capacitor, configured to couple the first clock signal to the second inverter input, and a second gate drive capacitor, configured to couple the second clock signal to the first inverter input.Type: GrantFiled: January 3, 2014Date of Patent: December 27, 2016Assignee: Analog Devices GlobalInventors: Roger Peppiette, Yanfeng Lu, Bin Shao, Linus Sheng
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Patent number: 9306452Abstract: An apparatus comprises an output port for a circuit load, a first input port for an energy harvest source, an input/output port a second energy source, a first circuit path from the energy harvest source to the second energy source at the input/output port and to the variable load at the output port, a second circuit path from the second energy source to the output port, a cold start circuit that produces a first voltage level at the output port by charging a capacitor at the output port using energy of the energy harvest source, and a main converter circuit that produces a second regulated voltage level at the input/output port using energy of the energy harvest source when the voltage at the output port capacitor is above a specified voltage value and uses the energy of the capacitor at the output port during startup of the main converter circuit.Type: GrantFiled: March 28, 2014Date of Patent: April 5, 2016Assignee: Analog Devices GlobalInventors: Hua-Jung Yang, Bin Shao, Suyi Yao, Yanfeng Lu
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Publication number: 20150280554Abstract: An apparatus comprises an output port for a circuit load, a first input port for an energy harvest source, an input/output port a second energy source, a first circuit path from the energy harvest source to the second energy source at the input/output port and to the variable load at the output port, a second circuit path from the second energy source to the output port, a cold start circuit that produces a first voltage level at the output port by charging a capacitor at the output port using energy of the energy harvest source, and a main converter circuit that produces a second regulated voltage level at the input/output port using energy of the energy harvest source when the voltage at the output port capacitor is above a specified voltage value and uses the energy of the capacitor at the output port during startup of the main converter circuit.Type: ApplicationFiled: March 28, 2014Publication date: October 1, 2015Inventors: Hua-Jung Yang, Bin Shao, Suyi Yao, Yanfeng Lu
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Publication number: 20150198635Abstract: A device to sense voltage is provided. The device includes a first circuit operatively coupled to one or more nodes. The first circuit senses an electrical characteristic of each of the one or more nodes. The first circuit generates an adjustment signal based on the electrical characteristic sensed at each of the one or more nodes. A second circuit operatively receives a first voltage and a second voltage, the second circuit being configured to generate a third voltage by scaling the second voltage. The second circuit generates a comparison signal based on a comparison of the first voltage and the third voltage.Type: ApplicationFiled: February 12, 2014Publication date: July 16, 2015Inventors: Bin Shao, Yanfeng Lu
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Publication number: 20150194879Abstract: This application discusses, among other things apparatus and methods for a voltage boost circuit. In an example, a voltage boost circuit can include first and second inverters, sharing a first supply node, and sharing a second supply node, a first charge transfer capacitor, configured to couple a first clock signal to the first inverter output, a second charge transfer capacitor, configured to couple a second clock signal to the second inverter output, the second clock signal being out-of-phase with the first clock signal, a first gate drive capacitor, configured to couple the first clock signal to the second inverter input, and a second gate drive capacitor, configured to couple the second clock signal to the first inverter input.Type: ApplicationFiled: January 3, 2014Publication date: July 9, 2015Applicant: Analog Devices TechnologyInventors: Roger Peppiette, Yanfeng Lu, Bin Shao, Linus Sheng
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Publication number: 20150123649Abstract: Apparatus and techniques for controlling measurement of an electrical parameter of an energy source can be used to obtain information for use in enhancing a power transfer efficiency between the energy source and a load. For example, during a first measurement cycle, information indicative of the electrical parameter of the energy source can be obtained using a measurement circuit during a first sampling duration in which the load is decoupled from the energy source. The information indicative of the obtained electrical parameter can be compared to a threshold. In response to the comparing, a different second sampling duration can be determined for use in obtaining information indicative of the electrical parameter during a subsequent measurement cycle. The information indicative of the electrical parameter of the energy source includes information for use in enhancing the power transfer efficiency between the energy source and the load.Type: ApplicationFiled: December 5, 2013Publication date: May 7, 2015Applicant: Analog Devices, Inc.Inventors: Bin Shao, Yanfeng Lu, Hua-Jung Yang
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Publication number: 20140268936Abstract: At least one embodiment provides a method for a nanopower boost regulator to startup from an ultra-low-voltage (such as 0.3V˜0.5V) for energy harvesting applications. The method does not necessarily require a special process or any external components such as mechanical switches. The startup circuit can include an asynchronous boost circuit to charge up an output with stacked power NMOS transistors, a ring oscillator, and/or a charge pump, along with accompanying circuitry.Type: ApplicationFiled: October 18, 2013Publication date: September 18, 2014Applicant: ANALOG DEVICES TECHNOLOGYInventors: Yanfeng Lu, Bin Shao
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Patent number: 7634537Abstract: Methods, data structures, and systems are provided to access data in cross-languages from cross-computing environments. A first request from a first computing environment is received to access the data in a first language. Concurrently, a second request from a second computing environment is received to access the data in the first language. A single message file used to service the requests is used to provide the data in the first language to both the requests within both computing environments. In another embodiment, the second request is received to access the data in a second language, wherein a second message file is used to provide the data in the second language to satisfy the second request simultaneously with the first request.Type: GrantFiled: April 30, 2007Date of Patent: December 15, 2009Assignee: Novell, Inc.Inventor: Yanfeng Lu
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Publication number: 20070203900Abstract: Methods, data structures, and systems are provided to access data in cross-languages from cross-computing environments. A first request from a first computing environment is received to access the data in a first language. Concurrently, a second request from a second computing environment is received to access the data in the first language. A single message file used to service the requests is used to provide the data in the first language to both the requests within both computing environments. In another embodiment, the second request is received to access the data in a second language, wherein a second message file is used to provide the data in the second language to satisfy the second request simultaneously with the first request.Type: ApplicationFiled: April 30, 2007Publication date: August 30, 2007Inventor: Yanfeng Lu
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Patent number: 7225222Abstract: Methods, data structures, and systems are provided to access data in cross-languages from cross-computing environments. A first request from a first computing environment is received to access the data in a first language. Concurrently, a second request from a second computing environment is received to access the data in the first language. A single message file used to service the requests is used to provide the data in the first language to both the requests within both computing environments. In another embodiment, the second request is received to access the data in a second language, wherein a second message file is used to provide the data in the second language to satisfy the second request simultaneously with the first request.Type: GrantFiled: January 18, 2002Date of Patent: May 29, 2007Assignee: Novell, Inc.Inventor: Yanfeng Lu
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Patent number: D1018905Type: GrantFiled: December 30, 2021Date of Patent: March 19, 2024Assignee: ZHEJIANG YUFENG INTELLIGENT HOME CO., LTD.Inventors: Liushun Ni, Rong Du, Chunli Fang, Xianxu Zhan, Yinyou Lin, Liping Zhang, Rongjia Chenfang, Yanfeng Lu