Patents by Inventor Yu Liu

Yu 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: 20190336279
    Abstract: A valve prosthesis (10), comprising a stent (1), a leaflet (2), and a skirt (3); the stent (1) comprises an inflow end, an outflow end, and a plurality of wavy segments axially connected; the wavy segments comprise a plurality of reticular structure units disposed circumferentially; the leaflet (2) and the skirt (3) are fixed on the stent (1) respectively; the upper portion of the skirt (3) is provided with indentations (321); the skirt (3) is fixed with the leaflet (2) by means of the indentations (321); the skirt (3) further comprises first protrusion portions (323) extending toward the direction of the outflow end of the stent; one ends of the first protrusion portions (323) are connected with the indentations(321), and the other ends of the first protrusion portions are fixed to the stent (1); by such a way, the connection strength of the skirt (3) and the stent (1) is enhanced; and besides, when the valve prosthesis (10) is implanted at a lower position, perivalvular leakage preventing height can be incr
    Type: Application
    Filed: September 28, 2017
    Publication date: November 7, 2019
    Inventors: Shihong LIU, Guoming CHEN, Yu LI
  • Publication number: 20190341524
    Abstract: A semiconductor device comprises: a first semiconductor structure; a second semiconductor structure on the first semiconductor structure; an active region, wherein the active region comprises multiple alternating well layers and barrier layers, the active region further comprises an upper surface facing the second semiconductor structure and a bottom surface opposite the upper surface; an electron blocking region between the second semiconductor structure and the active region; a first aluminum-containing layer between the electron blocking region and the active region, wherein the first aluminum-containing layer has a band gap greater than the band gap of the first electron blocking layer; and a p-type dopant above the bottom surface of the active region and comprising a concentration profile comprising a peak shape having a peak concentration value, wherein the peak concentration value lies at a distance of between 15 nm and 60 nm from the upper surface of the active region.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: Chia-Ming LIU, Chang-Hua HSIEH, Yung-Chung PAN, Chang-Yu TSAI, Ching-Chung HU, Ming-Pao CHEN, Chi SHEN, Wei-Chieh LIEN
  • Publication number: 20190338834
    Abstract: A locking apparatus, a powertrain, a power transmission system, and a vehicle, the locking system (200) comprising: a first flange (201a) and a second flange (201b); and first and second flange locking structures (Q1, Q2), the first and second flange locking structures (Q1, Q2) both being used for selectively locking the first flange (201a) and the second flange (201b) in order to make the second flange (201b) rotate synchronously with the first flange (201a), or in order to make the first flange (201a) rotate synchronously with the second flange (201b); the first and second flange locking structures (Q1, Q2) both comprise: a synchronising ring (202), the synchronising ring (202) being constantly connected to the corresponding flange in order to rotate synchronously with the corresponding flange, and the synchronising ring (202) being able to slide relative to the corresponding flange; and a drive assembly (203), the drive assembly (203) being capable of selectively pushing the synchronising ring to slide alo
    Type: Application
    Filed: December 21, 2017
    Publication date: November 7, 2019
    Inventors: Yanyan ZHU, Yu HUA, Jing LIU, Lingdao CHAI, Jintao ZHANG
  • Publication number: 20190340728
    Abstract: A superpixel sampling network utilizes a neural network coupled to a differentiable simple linear iterative clustering component to determine pixel-superpixel associations from a set of pixel features output by the neural network. The superpixel sampling network computes updated superpixel centers and final pixel-superpixel associations over a number of iterations.
    Type: Application
    Filed: September 13, 2018
    Publication date: November 7, 2019
    Inventors: Varun Jampani, Deqing Sun, Ming-Yu Liu, Jan Kautz
  • Publication number: 20190339486
    Abstract: An optical image capturing system is provided. In order from an object side to an image side, the optical image capturing system includes a first lens, a second lens, a third lens and a fourth lens. The first lens has a refractive power and the object side thereof may be convex. The second lens and the third lens have refractive power. The object side and the image side of the foregoing lenses may be aspheric. The fourth lens may have positive refractive power. The object side and the image side thereof are aspheric. At least one of surfaces of the fourth lens may have one inflection point. The four lenses have refractive power. When meeting some certain conditions, the optical image capturing system may have outstanding light-gathering ability and an adjustment ability about the optical path in order to elevate the image quality.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 7, 2019
    Inventors: YEONG-MING CHANG, KUO-YU LIAO, CHIEN-HSUN LAI, YAO-WEI LIU
  • Publication number: 20190341479
    Abstract: A nitride semiconductor epitaxial stack structure including: a silicon substrate; an AlN nucleation layer disposed on the silicon substrate; a buffer structure disposed on the aluminum-including nucleation layer and sequentially including a first superlattice epitaxial structure, a first GaN-based layer disposed on the first superlattice epitaxial structure, and a second superlattice epitaxial structure disposed on the first GaN based layer; a channel layer disposed on the buffer structure; and a barrier layer disposed on the channel layer; wherein the first superlattice epitaxial structure includes a first average Al composition ratio, the first GaN-based layer includes a first Al composition ratio, the_second superlattice epitaxial structure includes a second average Al composition ratio; wherein an Al composition ratio of the AlN nucleation layer?the first average Al composition ratio of the first superlattice epitaxial structure>the first Al composition ratio of the first GaN based layer>the second
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventors: SHANG JU TU, YA YU YANG, CHIA CHENG LIU, TSUNG CHENG CHANG
  • Publication number: 20190339487
    Abstract: An optical image capturing system is provided. In order from an object side to an image side, the optical image capturing system includes a first lens, a second lens, a third lens and a fourth lens. The first lens has a refractive power and the object side thereof may be convex. The second lens and the third lens have refractive power. The object side and the image side thereof may be aspheric. The fourth lens may have positive refractive power. The object side and the image side thereof are aspheric. At least one of sides of the fourth lens may have one inflection point. The four lenses have refractive power. When meeting some certain conditions, the optical image capturing system may have outstanding light-gathering ability and an adjustment ability about the optical path in order to elevate the image quality.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 7, 2019
    Inventors: YEONG-MING CHANG, KUO-YU LIAO, CHIEN-HSUN LAI, YAO-WEI LIU
  • Publication number: 20190340508
    Abstract: A computing device includes: a first computing unit configured to perform a first operation on an input first matrix M times, to obtain a second matrix, a second computing unit, configured to perform a second operation on the input second matrix, and a control unit, configured to: control the first computing unit to perform an ith first operation of the M first operations on the first matrix, to obtain an ith data element of the second matrix, store the ith data element of the second matrix into a first storage unit, and control, if data elements currently stored in the first storage unit are sufficient for performing one second operation, the second computing unit to perform a one second operation.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventors: Wulong Liu, Jun Yao, Yu Wang
  • Publication number: 20190337383
    Abstract: The present invention discloses a locking device, a power assembly, a power transmission system and a vehicle. The locking device includes: a first flange, the first flange being adapted to be fixed on the first shaft; a second flange, the second flange being adapted to be fixed on the second shaft; a synchronizing ring, the synchronizing ring being normally connected to the first flange to be adapted to rotate synchronously with the first flange, and the synchronizing ring being slidable relative to the first flange; and a driving component, the driving component selectively pushing the synchronizing ring to slide from an unlocked position to a locked position in an axial direction of the first flange. When the synchronizing ring is in the locked position, the synchronizing ring is connected to the second flange be adapted to rotate the second flange synchronously with the first flange. When the synchronizing ring is in the unlocked position, the synchronizing ring is separated from the second flange.
    Type: Application
    Filed: December 21, 2017
    Publication date: November 7, 2019
    Inventors: Yanyan ZHU, Yu HUA, Jing LIU, Lingdao CHAI, Jintao ZHANG
  • Patent number: 10470264
    Abstract: A smart communication interface for a LED driving system driving a LED matrix having a plurality of LEDs. The smart communication interface may have a data write transaction structure in write mode. The data write transaction structure includes an address code for identifying a corresponding one LED among the plurality of LEDs; an R/W indicating code for indicating whether the smart communication interface is in write mode; and a grayscale command code for indicating a programmed grayscale command value for the corresponding one LED identified by the address code. The smart communication interface may include a data read transaction structure in read mode. The data read transaction structure includes the address code, the R/W indicating code and a grayscale read-back code for indicating a grayscale command value for the corresponding one LED identified by the address code.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: November 5, 2019
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Zheng Luo, Junjian Zhao, Chao Liu, Tong Chen, Yu-Huei Lee
  • Patent number: 10470323
    Abstract: A hinge structure includes a first base, a second base, a first linking rod, a second linking rod, and a torque assembly. The first linking rod has a first pivot part, a first sliding part, and a second pivot part. The first pivot part is pivoted to the first base, and the first sliding part is slidably connected to the second base. The second linking rod has a second sliding part, a shaft part, a third pivot part, and a fourth pivot part. The second sliding part is slidably connected to the first base. The third pivot part is pivoted to the second base. The second pivot part is pivoted to the fourth pivot part. The torque assembly has a sleeve part sleeved on the shaft part and a connection part connected to the second base. The sleeve part generates torque during rotation with respect to the shaft part.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: November 5, 2019
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Hsien-Hung Cheng, You-Yu Chen, Chia-Wei Chou, Po-Yi Chang, Cheng-Yo Hsiao, Wei-Ting Liu
  • Patent number: 10467763
    Abstract: A method, computer readable medium, and system are disclosed for estimating optical flow between two images. A first pyramidal set of features is generated for a first image and a partial cost volume for a level of the first pyramidal set of features is computed, by a neural network, using features at the level of the first pyramidal set of features and warped features extracted from a second image, where the partial cost volume is computed across a limited range of pixels that is less than a full resolution of the first image, in pixels, at the level. The neural network processes the features and the partial cost volume to produce a refined optical flow estimate for the first image and the second image.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: November 5, 2019
    Assignee: NVIDIA Corporation
    Inventors: Deqing Sun, Xiaodong Yang, Ming-Yu Liu, Jan Kautz
  • Patent number: 10464137
    Abstract: The present application discloses a vertical lathe chuck mounting rack, which is composed of a decelerator A, a motor A, a rack, a motor B, a decelerator B, a linear guide rail C, a ball screw, a cylinder, a guide rail sliding seat C, a flange and the like, wherein the motor A is capable of driving a horizontal rack to move horizontally on a cross beam along a linear guide rail B. The motor B is capable of driving a lifting rack to move vertically along the linear guide rail C. The cylinder is capable of driving a telescopic rack to move horizontally along a linear guide rail A.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 5, 2019
    Assignee: CITIC DICASTAL CO., LTD
    Inventors: Weidong Liu, Yukun Yang, Zhi Chang, Guidong Yang, Yu Chang, Yongwang Zhao
  • Patent number: 10468494
    Abstract: A high-voltage device includes a semiconductor substrate, a source diffusion region, a drain diffusion region, a channel diffusion region and a gate electrode. The source diffusion region and the drain diffusion region with a first conductive type are disposed in the semiconductor substrate. The channel diffusion region is disposed in the semiconductor substrate and between the source diffusion region and the drain diffusion region. The gate dielectric layer is disposed on the channel diffusion region and having a first modified portion with a second conductive type extending inwards from a first edge of the gate dielectric layer. The gate electrode is disposed on the gate electric layer, wherein the first modified portion, the gate electrode and the channel diffusion region at least partially overlap with each other.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: November 5, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chih-Mou Lin, Chin-Chia Kuo, Ming-Hua Tsai, Su-Hua Tsai, Pai-Tsang Liu, Chiao-Yu Li, Chun-Ning Wu, Wei-Hsuan Chang
  • Patent number: 10464811
    Abstract: The present invention relates to a method of forming a particulate porous metal oxide or metalloid oxide, as well as uses of the obtained a particulate porous metal oxide or metalloid oxide. A solution of a non-ionic surfactant and either an ionic surfactant or an inorganic salt is formed in an acidic aqueous solution. A metal oxide precursor or a metalloid oxide precursor is added. The formed reaction mixture is heated under reflux upon agitation for a period sufficient to obtain a particulate porous metal oxide or metalloid oxide.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: November 5, 2019
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Yanhui Yang, Siu-Choon Ng, Xianbin Liu, Laisheng Li, Yu Du
  • Patent number: 10468443
    Abstract: A photo diode includes a pixel unit, a photo conversion layer, and a dielectric layer. The pixel unit includes a pair of pixels. The photo conversion layer is above the pixel unit and has a pair of portions, each of which corresponds to a respective one of the pixels. The dielectric layer is between the portions of the photo conversion layer. A method of manufacturing the photo diode is also disclosed.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 5, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Tzu-Jui Wang, Keng-Yu Chou, Chun-Hao Chuang, Ming-Chieh Hsu, Ren-Jie Lin, Jen-Cheng Liu, Dun-Nian Yaung
  • Patent number: 10464870
    Abstract: Provided is a method for preparing a diol. In the method, a saccharide and hydrogen as raw materials are contacted with a catalyst in water to prepare the diol. The employed catalyst is a composite catalyst comprised of a main catalyst and a cocatalyst, wherein the main catalyst is a water-insoluble acid-resistant alloy; and the cocatalyst is a soluble tungstate and/or soluble tungsten compound. The method uses an acid-resistant, inexpensive and stable alloy needless of a support as a main catalyst, and can guarantee a high yield of the diol in the case where the production cost is relatively low.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: November 5, 2019
    Assignees: The Coca-Cola Company, Changchum Meihe Science and Technology Development Co., LTD
    Inventors: Jing Liu, Hongbin Qi, Haiyu Ren, Indra Prakash, Yu Shi
  • Patent number: 10467497
    Abstract: Various aspects of a system and a method to provide assistance in a surgery in presence of tissue deformation are disclosed herein. In accordance with an embodiment, the system includes an electronic device that receives one or more tissue material properties of a plurality of surface structures of an anatomical portion. One or more boundary conditions associated with the anatomical portion may also be received. Surface displacement of the anatomical portion may be determined by matching a first surface of the anatomical portion before deformation with a corresponding second surface of the anatomical portion after the deformation. The volume displacement field of the anatomical portion may be computed based on the determined surface displacement, the received one or more tissue material properties, and the received one or more boundary conditions.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: November 5, 2019
    Assignee: SONY CORPORATION
    Inventors: Liangyin Yu, Bi Song, Ming-Chang Liu
  • Publication number: 20190334514
    Abstract: A high-speed low-power-consumption dynamic comparator includes a latch, an AND gate, a delay unit, and an XNOR gate. According to the high-speed low-power-consumption dynamic comparator, the output signal is generated through the XNOR gate from the comparator output signals Dp and Dn. The output signal and the control signal clk1 generate the control signal of the NMOS transistor P10 through the AND gate, so that the problem of static power consumption in a conventional comparator is solved.
    Type: Application
    Filed: July 7, 2016
    Publication date: October 31, 2019
    Inventors: DAI-GUO XU, GANG-YI HU, RU-ZHANG LI, JIAN-AN WANG, GUANG-BING CHEN, YU-XIN WANG, DONG-BING FU, TAO LIU
  • Publication number: 20190335525
    Abstract: The disclosure is related to a multi-gateway communication method. The method is applied to a wireless gateway system that includes multiple nodes including a number of gateways. A root gateway is provided among the gateways. When a gateway receives an uplink data from a node, the uplink data is transmitted to a backend server if the gateway is the root gateway. The uplink data is transmitted to a parent gateway if the gateway is not the root gateway. On the other hand, when the gateway receives downlink data from a node, it is determined if a destination node is recorded in a downlink routing table of a descendant gateway if gateway is not connected with the destination node but with the descendant gateway. If the destination node is recorded in the downlink routing table, the data is transmitted to the descendant gateway; otherwise, the downlink data is discarded.
    Type: Application
    Filed: November 5, 2018
    Publication date: October 31, 2019
    Inventors: JIAN-HONG LIU, CHUN-YU WANG, TSUNG-CHIH HUANG