公开(公告)号：US11101379B2

公开(公告)日：2021-08-24

申请号：US16461505

申请日：2017-11-16

申请人： The Regents of the University of California

发明人： Brian Romanczyk ,  Haoran Li ,  Elaheh Ahmadi ,  Steven Wienecke ,  Matthew Guidry ,  Xun Zheng ,  Stacia Keller ,  Umesh K. Mishra

IPC分类号： H01L29/66 ,  H01L29/778 ,  H01L29/10 ,  H01L29/20 ,  H01L29/205

摘要： A novel design for a nitrogen polar high-electron-mobility transistor (HEMT) structure comprising a GaN/InGaN composite channel. As A novel design for a nitrogen polar high-electron-mobility transistor (HEMT) structure comprising a GaN/InGaN composite channel. As illustrated herein, a thin InGaN layer introduced in the channel increases the carrier density, reduces the electric field in the channel, and increases the carrier mobility. The dependence of p on InGaN thickness (tInGaN) and indium composition (xIn) was investigated for different channel thicknesses. With optimized tInGaN and xIn, significant improvements in electron mobility were observed. For a 6 nm channel HEMT, the electron mobility increased from 606 to 1141 cm2/(V·s) when the 6 nm thick pure GaN channel was replaced by the 4 nm GaN/2 nm In0.1Ga0.9N composite channel.

公开(公告)号：US11027810B2

公开(公告)日：2021-06-08

申请号：US16436759

申请日：2019-06-10

申请人： Liquid Robotics, Inc.

发明人： Roger G. Hine ,  Derek L. Hine ,  Kurt A. F. Kiesow, III ,  William A. Stutz ,  Graham Hine

IPC分类号： B63H19/02 ,  B63B21/66 ,  F03B13/14 ,  B63B35/44

摘要： A float (1) suitable for use as a buoy or as a component for a wave-powered vehicle. The float (1) includes an upper member (12) whose height can be changed and/or which remained substantially vertical even when the float is in wave-bearing water. A low drag cable (2) suitable for use as a tether in a wave-powered vehicle has a streamlined cross-section and includes a tensile member (21) near the front of the cross-section, at least one non-load-bearing member (22) behind the tensile member, and a polymeric jacket (23). Wave-powered vehicles having a float (1), a submerged swimmer (3) and a tether (2) connecting the float and the swimmer, include a means for determining whether the tether is twisted; or a means (91) for untwisting the tether; or a pressure-sensitive connection (71, 72, 73) which can disconnect the tether when the vehicle is dragged downwards by entanglement with a whale; or a 2-axis universal joint securing the tether to the float or to the swimmer; or elastic elements which absorb snap loads created by the tether; or two or more of these.

公开(公告)号：US11023094B2

公开(公告)日：2021-06-01

申请号：US16425649

申请日：2019-05-29

申请人： Autodesk, Inc.

发明人： Thiago Dacosta ,  Arno Zinke ,  Dov Amihod

IPC分类号： G06F3/0481 ,  G06Q10/10 ,  G06F111/02

摘要： Systems and methods are presented for allowing multiple users to collaboratively edit 3-D assets in real-time, using a distributed 3-D editing/rendering software application. The software application may include a lightweight, browser-based user interface that is able to run on computing devices with relatively little memory and processing power. The software application may further include a progressive rendering engine.

公开(公告)号：US10985285B2

公开(公告)日：2021-04-20

申请号：US16325246

申请日：2017-08-17

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Benjamin P. Yonkee ,  Asad J. Mughal ,  David Hwang ,  Erin C. Young ,  James S. Speck ,  Steven P. DenBaars ,  Shuji Nakamura

IPC分类号： H01L31/0304 ,  H01L29/207 ,  H01L33/32 ,  H01L33/00 ,  H01L21/02 ,  H01L29/36

摘要： A physical vapor deposition (e.g., sputter deposition) method for III-nitride tunnel junction devices uses metal-organic chemical vapor deposition (MOCVD) to grow one or more light-emitting or light-absorbing structures and electron cyclotron resonance (ECR) sputtering to grow one or more tunnel junctions. In another method, the surface of the p-type layer is treated before deposition of the tunnel junction on the p-type layer. In yet another method, the whole device (including tunnel junction) is grown using MOCVD and the p-type layers of the III-nitride material are reactivated by lateral diffusion of hydrogen through mesa sidewalls in the III-nitride material, with one or more lateral dimensions of the mesa that are less than or equal to about 200 μm. A flip chip display device is also disclosed.

公开(公告)号：US10969443B2

公开(公告)日：2021-04-06

申请号：US16662972

申请日：2019-10-24

申请人： The Regents of the University of California

发明人： John Martinis

IPC分类号： G11C11/44 ,  G01R33/00 ,  G06N10/00 ,  G01R33/035 ,  G11C11/56

摘要： A method includes generating a bias signal from a first device, and applying the bias signal to a second device, the first device having (a) a superconducting trace and (b) a superconducting quantum interference device (SQUID), in which a first terminal of the SQUID is electrically coupled to a first end of the superconducting trace, and a second terminal of the SQUID is electrically coupled to a second end of the superconducting trace, where generating the bias signal from the first device includes: applying a first signal Φ1 to a first sub-loop of the SQUID; and applying a second signal Φ2 to a second sub-loop of the SQUID, in which the first signal Φ1 and the second signal Φ2 are applied such that a value of a superconducting phase of the first device is incremented or decremented by a non-zero integer multiple n of 2π.

公开(公告)号：US10944175B2

公开(公告)日：2021-03-09

申请号：US16443604

申请日：2019-06-17

申请人： The Boeing Company

发明人： John E. Rogers

IPC分类号： H01Q9/04 ,  H01Q13/02 ,  H01Q13/20 ,  H01Q1/38

摘要： A waveguide antenna and a method for producing same is disclosed. In one embodiment, The waveguide-fed surface integrated antenna array comprises an aperture coupled waveguide (WG) antenna element with inclusive slot on a first metal layer, a first ground plane as part of a surface integrated waveguide (SIW) on a first metal layer, an embedded microstrip feed on a second metal layer, a second ground plane as part of a SIW with one or more apertures formed within the ground plane on a third metal layer, and a waveguide enclosing the antenna element on the first metal layer. The SIW is formed on the first and third metal layers of the composite RF board along with one or more shorting conductors electrically shorting the first and second ground planes.

公开(公告)号：US10934332B2

公开(公告)日：2021-03-02

申请号：US16489294

申请日：2018-03-15

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： David S. Eisenberg ,  Paul M. Seidler ,  David R. Boyer

IPC分类号： C07K7/00 ,  C07K14/00 ,  C07K5/00 ,  C07K4/00 ,  A61K38/00 ,  A61K49/00 ,  C07K14/475 ,  C07K14/48 ,  C07K14/47 ,  A61K38/17 ,  A61K38/18 ,  A61K38/19 ,  A61K38/20 ,  A61K38/21 ,  A61P25/28 ,  A61K38/08 ,  A61K38/10 ,  C07K14/435 ,  C07K7/06 ,  C12N9/64 ,  C07K7/08 ,  A61P25/00 ,  A61P25/02 ,  G01N33/68 ,  A61K51/08 ,  A61K38/16 ,  A61K47/64 ,  A61K39/00

摘要： Aggregated Tau protein is associated with over 20 neurological disorders including Alzheimer's disease. Previous work has shown that Tau's sequence segments VQIINK (SEQ ID NO: 11) and VQIVYK (SEQ ID NO: 9) drive its aggregation, and that inhibitors based on the structure of the VQIVYK (SEQ ID NO: 9) segment partially inhibit Tau aggregation. Here we show that the VQIINK (SEQ ID NO: 11) segment is the more powerful driver of Tau aggregation. Two structures of this segment determined by the cryo EM method MicroED explain its more powerful seeding. Of practical significance, the understanding of the structures has led to the design of structure based peptide inhibitors that effectively inhibit Tau aggregation as well as the ability of exogenous Tau fibrils to seed intracellular Tau in mammalian cells into amyloid.

公开(公告)号：US10933609B2

公开(公告)日：2021-03-02

申请号：US16089737

申请日：2017-03-31

申请人： The Regents of the University of California

发明人： Vijay Gupta ,  Brian Jouse Ramirez ,  Utkarsh Misra

IPC分类号： B32B3/24 ,  B32B5/20 ,  B32B27/40 ,  B29C44/14 ,  B29C70/68 ,  B29C70/70 ,  B32B5/18 ,  B29C44/12 ,  B32B3/26 ,  B32B5/28 ,  B32B5/32 ,  B29C44/34 ,  B29C41/20 ,  B29L31/48 ,  B29K675/00 ,  B29K75/00 ,  B29K105/04 ,  B29C44/32 ,  A41D13/05 ,  A42B3/12 ,  A63B71/10 ,  A63B71/12 ,  B29L31/00 ,  B32B27/06

摘要： Composite materials having superior material properties useful as impact absorbing devices can be fabricated by embedding a lattice structure (e.g., polymer lattice structure) within a foam, so that the foam reinforces the lattice structure under impact. Materials and dimensions of the foam and the lattice structure may be selected to achieve composite materials having tailored impact absorbing elastic and/or viscoelastic responses over a wide range of temperatures.

公开(公告)号：US10928890B2

公开(公告)日：2021-02-23

申请号：US16427841

申请日：2019-05-31

申请人： Autodesk, Inc.

发明人： Hans David Kellner

IPC分类号： G06F3/01 ,  G09G5/00 ,  G06F3/03 ,  G06F1/16 ,  H04N13/339 ,  H04N13/344 ,  G09G3/00

摘要： A method, system, and apparatus provide the ability to control a system state of/in an image viewing application using a camera/portable viewing device. A screen of the camera is used to display a virtual reality view and an opening is positioned over a lens of the camera. The screen and physical buttons of the camera are not accessible when the camera is placed into the virtual reality viewing mechanism. An image is acquired from a camera through the opening. Color is used to make choices for operations. Alternatively, based on the toggling of the system state through a light blocking operation, a motion operation is conducted. The motion operation is based on length of time light is blocked and the length controls a speed of the motion operation.

公开(公告)号：US10917009B2

公开(公告)日：2021-02-09

申请号：US15672652

申请日：2017-08-09

申请人： California Institute of Technology

发明人： Philippe C. Adell ,  Ming Sun ,  Bertan Bakkaloglu

IPC分类号： H02M3/157 ,  H02M3/158 ,  H03L7/085 ,  H03L7/093 ,  H02M3/156 ,  H04B7/14

摘要： An autozeroed comparator controls a frequency fsw of the input voltage inputted to a DC/DC converter. A digital frequency synchronization circuit is connected to the autozeroed comparator so as to form a phase locked loop, wherein the DES circuit controls the hysteretic window of the autozeroed comparator so as to lock fsw to a clock reference frequency. A plurality of slave phase circuits may be connected to the master phase circuit including the DFS circuit and the autozeroed comparator. Duty cycle calibration circuits adjust a duty cycle signal applied to each of the slave phase circuits, in response to average current measured in the slave phase circuits, so that each slave phase circuit is synchronized with the master phase circuit. A 6 A 90.5% peak efficiency 4-phase hysteretic quasi-current-mode buck converter is provided with constant frequency and maximum ±1.5% current mismatch between the slave phases and the master phase.