Patents by Inventor Wenhao Li
Wenhao Li 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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Patent number: 11482362Abstract: A transfer type contra-rotating geomagnetic energy storage-release delivery system is disclosed. The system includes a control system, a three-axis control moment canceller and an energy system, which are arranged on a delivery mother spacecraft, and the delivery mother spacecraft is connected, through support rod structures, with a strong magnetic moment generating device, a contra-rotating transmission mechanism and two delivery connection rod structures arranged at the two ends of the contra-rotating transmission mechanism, the strong magnetic moment generating device is arranged between the contra-rotating transmission mechanism and the delivery mother spacecraft, the two delivery connection rod structures are provided with slidable mass blocks respectively, and the strong magnetic moment generating device and the contra-rotating transmission mechanism provide energy through the energy system.Type: GrantFiled: June 23, 2020Date of Patent: October 25, 2022Assignees: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao Li, Guanhua Feng, Heng Zhang
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Publication number: 20220328802Abstract: Various embodiments disclosed relate to novel methods of fabricating 3-D Li ion batteries using direct nanoimprint lithography. The present invention includes methods of fabricating high surface area electrodes, including imprint patterning of high aspect ratio parallel grating style electrodes. The method includes coating a substrate with an ink containing nanoparticles and subsequently annealing the ink into a desired pattern.Type: ApplicationFiled: June 22, 2022Publication date: October 13, 2022Inventors: James J. Watkins, Wenhao Li
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Publication number: 20220306323Abstract: A spacecraft nutation inhibition method for low-orbit geomagnetic energy storage in-orbit delivery includes: S1, enabling a delivery connection rod to be slidably connected to two mass blocks in a length direction, and adjusting the center of mass of a spacecraft system to pass through a main connecting shaft; S2, respectively measuring, calibrating and adjusting the center of mass and the principal axis of inertia of the delivery connection rod that is to deliver the space target or de-orbit debris; S3, carrying out energy storage delivery; S4, respectively adjusting the center of mass and the moment of inertia of the delivery connection rod after delivering the space target or de-orbit debris; S5, carrying out energy dissipation and unloading; and S6, enabling the spacecraft system to prepare to grab the next space target or de-orbit debris and proceeding to the next delivery work cycle.Type: ApplicationFiled: June 23, 2020Publication date: September 29, 2022Applicants: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao LI, Heng ZHANG, Guanhua FENG, Chen ZHANG, Lei YANG, Linli LV
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Patent number: 11443034Abstract: A trust zone-based operating system including a secure world subsystem that runs a trusted execution environment TEE, a TEE monitoring area, and a security switching apparatus is provided. When receiving a sensitive operation request sent by a trusted application TA in the TEE, the TEE writes a sensitive instruction identifier and an operation parameter of the sensitive operation request into a general-purpose register, and sends a switching request to the security switching apparatus. The security switching apparatus receives the switching request, and switches a running environment of the secure world subsystem from the TEE to the TEE monitoring area. The TEE monitoring area stores a sensitive instruction in the operating system.Type: GrantFiled: September 29, 2020Date of Patent: September 13, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Wenhao Li, Yubin Xia, Haibo Chen
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Publication number: 20220275576Abstract: Disclosed are a polyester cotton-like yarn-dyed fabric, and a manufacturing method and application thereof. The polyester cotton-like yarn-dyed fabric is interwoven by warp and weft, the warp adopts dyed polyester as a covering layer and low-temperature spandex as a core-spun yarn of a core yarn, a weight ratio of the polyester to the low-temperature spandex is 4-49:1, and the polyester is subjected to alkali deweighting treatment to form an eroded surface. The polyester cotton-like yarn-dyed fabric has good cotton feeling, high elasticity, high color fastness and low ironing shrinkage rate, and is suitable for making high-quality clothing, especially shirts. The manufacturing method of the yarn-dyed fabric is energy-saving and emission-reducing, and can manufacture a novel polyester yarn-dyed fabric with low ironing shrinkage rate, high color fastness and cotton-like hand feeling. Use of the yarn-dyed fabric for making clothing such as shirts increases the selectivity and functionality.Type: ApplicationFiled: November 28, 2019Publication date: September 1, 2022Inventors: Zibin LIU, Deming LIU, Qianfeng SHEN, Jiabin WANG, Jingjing LU, Chengli XING, Wenhao LI
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Publication number: 20220270802Abstract: A transfer type contra-rotating geomagnetic energy storage-release delivery system is disclosed. The system includes a control system, a three-axis control moment canceller and an energy system, which are arranged on a delivery mother spacecraft, and the delivery mother spacecraft is connected, through support rod structures, with a strong magnetic moment generating device, a contra-rotating transmission mechanism and two delivery connection rod structures arranged at the two ends of the contra-rotating transmission mechanism, the strong magnetic moment generating device is arranged between the contra-rotating transmission mechanism and the delivery mother spacecraft, the two delivery connection rod structures are provided with slidable mass blocks respectively, and the strong magnetic moment generating device and the contra-rotating transmission mechanism provide energy through the energy system.Type: ApplicationFiled: June 23, 2020Publication date: August 25, 2022Applicants: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, GUANGDONG ACADEMY OF AEROSPACE RESEARCH IMECH, CASInventors: Wenhao LI, Guanhua FENG, Heng ZHANG
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Publication number: 20220257030Abstract: A child carrier includes: a seat portion; a buckle movably provided on the seat portion; a backrest portion connected to the seat portion and extending upward, the backrest portion having a plurality of adjustment holes formed therein from bottom to top; and a shoulder strap having a fixed end and a free end, the fixed end being fixed on a rear side of the backrest portion, the free end passing through one of the plurality of adjustment holes and being removably connected to the seat portion.Type: ApplicationFiled: February 17, 2022Publication date: August 18, 2022Inventors: Bo WU, Meifeng FAN, Wenhao LI
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Publication number: 20220228890Abstract: A heterodyne two-dimensional grating measuring device and measuring method thereof includes a light source, a reading head, a photoelectric receiving module, and a signal processing system. The light source is configured to generate two beams of linearly polarized lights having characteristics of overlapping, polarization orthogonal, and fixed frequency difference. The reading head is configured to receive the two beams of the linearly polarized lights, the two beams of the linearly polarized lights are respectively incident on a surface of a moving two-dimensional measuring grating to generate ±1-order diffracted lights of two dimensions, and the ±1-order diffracted lights are respectively incident to the photoelectric receiving module through the reading head.Type: ApplicationFiled: March 31, 2022Publication date: July 21, 2022Inventors: WENHAO LI, Zhaowu Liu, Hongzhu Yu, Wei Wang, Rigalantu Ji, Xuefeng Yao
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Publication number: 20220221372Abstract: A heterodyne one-dimensional grating measuring device and measuring method thereof, including a light source, a reading head, a photoelectric receiving module, and a signal processing system. The light source is configured to generate two linearly polarized lights having characteristics of overlapping, polarization orthogonal, and fixed frequency difference. The reading head is configured to receive two beams of polarized lights and be respectively incident on a surface of a moving measuring grating to generate a +1-order diffracted light and a ?1-order diffracted light. The photoelectric receiving module is configured to receive the +1-order diffracted light and the ?1-order diffracted light to form two paths of beat frequency signals. The signal processing system is configured to perform differential calculation on the two paths of the beat frequency signals to realize a displacement measurement of single diffraction of the measuring grating for four-fold optical subdivision.Type: ApplicationFiled: March 31, 2022Publication date: July 14, 2022Inventors: WENHAO LI, ZHAOWU LIU, WEI WANG, HONGZHU YU, RIGALANTU JI, XUEFENG YAO
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Patent number: 11387438Abstract: Various embodiments disclosed relate to novel methods of fabricating 3-D Li ion batteries using direct nanoimprint lithography. The present invention includes methods of fabricating high surface area electrodes, including imprint patterning of high aspect ratio parallel grating style electrodes. The method includes coating a substrate with an ink containing nanoparticles and subsequently annealing the ink into a desired pattern.Type: GrantFiled: March 16, 2018Date of Patent: July 12, 2022Assignee: University of MassachusettsInventors: James J. Watkins, Wenhao Li
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Patent number: 11362621Abstract: A wiring device of photovoltaic power generation equipment includes an aluminum wire and a copper-aluminum transition element. One end of the aluminum end is connected with the aluminum end of the copper-aluminum transition piece, and the other end of the aluminum end is configured to connect with an external connecting component. The copper end is configured to connect with photovoltaic power generation equipment. In the wiring device of the photovoltaic power generation equipment provided in the present application, the copper-aluminum transition piece is arranged at the position of the photovoltaic power generation equipment, and the aluminum end of the copper-aluminum transition piece is connected to the external connecting component by the aluminum wire, avoiding using copper wire for long-distance conduction. The cost of the aluminum wire is much lower than that of the copper wire. Therefore, the cost of the wiring device provided by the application is reduced.Type: GrantFiled: March 24, 2021Date of Patent: June 14, 2022Assignee: SUNGROW POWER SUPPLY CO., LTD.Inventors: Wenhao Li, Yonghong Li, Qingqing Xu, Peng Chen, Puyun Dong
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Publication number: 20220159880Abstract: An inverter and a heat radiation structure thereof are provided. The heat radiation structure of the inverter includes a heat radiator for radiating heat from a heating element of the inverter, and a heat radiation fan for air-cooling the heat radiator. The heat radiator includes multiple heat radiation fins able to be air-cooled. The number of the heat radiator is at least two, and two adjacent heat radiators are a first heat radiator and a second heat radiator respectively. The heat radiation fan is provided between the first heat radiator and the second heat radiator, and the heat radiation fan is located on the tops of the heat radiation fins. In the heat radiation structure of the inverter, the heat radiation fan is capable of cooling the first heat radiator and the second heat radiator at the same time.Type: ApplicationFiled: August 6, 2021Publication date: May 19, 2022Applicant: Sungrow Power Supply Co., Ltd.Inventors: Renbin Yu, Jie Zhou, Peng Chen, Wenhao Li
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Publication number: 20220146249Abstract: A grating displacement measuring device based on conical diffraction, including a laser diode configured to emit a measuring beam, a collimating lens, a polarizing beam splitter, a first reflecting mirror, a second reflecting mirror, a third reflecting mirror, a fourth reflecting mirror and a phase shift measuring unit. A grating displacement measuring method based on conical diffraction is also provided.Type: ApplicationFiled: January 24, 2022Publication date: May 12, 2022Inventors: Wenhao LI, Zhaowu LIU, Wei WANG, Lin LIU, Shan JIANG, Hongzhu YU, Yanxiu JIANG
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Patent number: 11258446Abstract: Systems, apparatuses, and methods for implementing a high-performance clock-gating circuit are described. A first pull-down stack receives enable and pulse signals on gates of N-type transistors which pull down an output node when the enable and pulse signals are both high. A pull-up transistor coupled to the output node receives a clock signal which turns off the pull-up transistor when the clock signal is high. A first pull-up stack receives the inverted pulse signal and the enable signal on gates of P-type transistors to cause the output node to be high when the enable signal and inverted pulse signal are low. A second pull-up stack maintains a high voltage on the output node after the pulse event has ended but while the clock signal is still high. A second pull-down stack maintains a low voltage on the output node after the pulse event but while the clock remains high.Type: GrantFiled: April 29, 2020Date of Patent: February 22, 2022Assignee: Apple Inc.Inventors: Vivekanandan Venugopal, Shuyan Lei, Wenhao Li, Hemangi U. Gajjewar
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Publication number: 20210344344Abstract: Systems, apparatuses, and methods for implementing a high-performance clock-gating circuit are described. A first pull-down stack receives enable and pulse signals on gates of N-type transistors which pull down an output node when the enable and pulse signals are both high. A pull-up transistor coupled to the output node receives a clock signal which turns off the pull-up transistor when the clock signal is high. A first pull-up stack receives the inverted pulse signal and the enable signal on gates of P-type transistors to cause the output node to be high when the enable signal and inverted pulse signal are low. A second pull-up stack maintains a high voltage on the output node after the pulse event has ended but while the clock signal is still high. A second pull-down stack maintains a low voltage on the output node after the pulse event but while the clock remains high.Type: ApplicationFiled: April 29, 2020Publication date: November 4, 2021Inventors: Vivekanandan Venugopal, Shuyan Lei, Wenhao Li, Hemangi U. Gajjewar
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Publication number: 20210305934Abstract: A wiring device of photovoltaic power generation equipment includes an aluminum wire and a copper-aluminum transition element. One end of the aluminum end is connected with the aluminum end of the copper-aluminum transition piece, and the other end of the aluminum end is configured to connect with an external connecting component. The copper end is configured to connect with photovoltaic power generation equipment. In the wiring device of the photovoltaic power generation equipment provided in the present application, the copper-aluminum transition piece is arranged at the position of the photovoltaic power generation equipment, and the aluminum end of the copper-aluminum transition piece is connected to the external connecting component by the aluminum wire, avoiding using copper wire for long-distance conduction. The cost of the aluminum wire is much lower than that of the copper wire. Therefore, the cost of the wiring device provided by the application is reduced.Type: ApplicationFiled: March 24, 2021Publication date: September 30, 2021Applicant: SUNGROW POWER SUPPLY CO., LTD.Inventors: Wenhao LI, Yonghong LI, Qingqing XU, Peng CHEN, Puyun DONG
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Patent number: 11049645Abstract: A transformer is disclosed. The transformer includes a first coil including a first stack of wire disks stacked in a first direction; an exterior barrier arranged to form a first air gap between outer sides of the wire disks of the first stack of wire disks and the exterior barrier; an interior barrier arranged to form a second air gap between inner sides of the wire disks of the first stack of wire disks and the interior barrier; a wind generator arranged to generate an air flow in the first direction; a core in the form of a cylinder that is surrounded by the first coil; and an air guiding plate fixed to one of the exterior barrier and the interior barrier, to guide the air flow in a second direction along first stack gaps between the wire disks of the first stack of wire disks. The transformer effectively improves the heat dissipation of the coil and thus allows a smaller transformer in size.Type: GrantFiled: July 3, 2019Date of Patent: June 29, 2021Assignee: ABB Power Grids Switzerland AGInventors: Ye Xu, Yong Wang, Qiongfang Lu, Wenhao Li
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Patent number: 10903824Abstract: Techniques are disclosed relating to level-shifting circuitry and time borrowing across voltage domains. In disclosed embodiments, an apparatus includes pulse circuitry, latch circuitry, pull circuitry, and feedback circuitry. The pulse circuitry is configured to generate a pulse signal in response to an active clock edge. The latch circuitry is configured to store a value of an input signal, where the input signal has a first voltage level. The pull circuitry is configured to drive, during the pulse signal, an output of the latch circuitry to match a logical value of the input signal at a second, different voltage level. This may allow the input signal to change during the pulse, enabling time borrowing. The feedback circuitry is configured to maintain the output of the latch circuitry at the second voltage level after the pulse signal.Type: GrantFiled: February 28, 2020Date of Patent: January 26, 2021Assignee: Apple Inc.Inventors: Vivekanandan Venugopal, Ajay Bhatia, Wenhao Li
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Publication number: 20210011996Abstract: A trust zone-based operating system including a secure world subsystem that runs a trusted execution environment TEE, a TEE monitoring area, and a security switching apparatus is provided. When receiving a sensitive operation request sent by a trusted application TA in the TEE, the TEE writes a sensitive instruction identifier and an operation parameter of the sensitive operation request into a general-purpose register, and sends a switching request to the security switching apparatus. The security switching apparatus receives the switching request, and switches a running environment of the secure world subsystem from the TEE to the TEE monitoring area. The TEE monitoring area stores a sensitive instruction in the operating system.Type: ApplicationFiled: September 29, 2020Publication date: January 14, 2021Inventors: Wenhao LI, Yubin XIA, Haibo CHEN
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Publication number: 20200377420Abstract: Various embodiments disclosed relate to a method of forming a composite including a carbon composite structure. The method includes disposing a precursor composition on a substrate. The composition includes a porogen component, a carbon component, and a catalyst component. The method further includes irradiating the precursor composition to form the carbon composite structure.Type: ApplicationFiled: August 18, 2017Publication date: December 3, 2020Inventors: James J. Watkins, Dong-Po Song, Wenhao Li