Patents by Inventor C. Chu

C. Chu 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).

  • Patent number: 10256217
    Abstract: A light emitting device includes a circuitry substrate and multiple light emitting diodes (LEDs) bonded to the circuitry substrate in a spaced array. The light emitting device also includes a continuous and substantially flat wavelength conversion member covering the light emitting diodes (LEDs) configured to convert the electromagnetic radiation emitted by the light emitting diodes (LEDs) into another wavelength range. The light emitting device also includes a planarized layer configured to support the wavelength conversion member on the circuitry substrate. The light emitting device can also include a light shaper on the wavelength conversion member configured to form emitting windows for the electromagnetic radiation transmitted through the wavelength conversion member forming an output light beam having a desired emitting window size, shape, and edge and to block and minimize scattered electromagnetic radiation from the wavelength conversion layer.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: April 9, 2019
    Assignee: TSLC CORP.
    Inventors: Po-Wei Lee, C. Chu, Tzu-Han Lin
  • Patent number: 10242695
    Abstract: Techniques for enhancing an acoustic echo canceller based on visual cues are described herein. The techniques include changing adaptation of a filter of the acoustic echo canceller, calibrating the filter, or reducing background noise from an audio signal processed by the acoustic echo canceller. The changing, calibrating, and reducing are responsive to visual cues that describe acoustic characteristics of a location of a device that includes the acoustic echo canceller. Such visual cues may indicate that no human being is present at the location, that some subject(s) are engaged in speaking or sound generating activities, or that motion associated with an echo path change has occurred at the location.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 26, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Kavitha Velusamy, Wai C. Chu, Ramya Gopalan, Amit S. Chhetri
  • Patent number: 10244665
    Abstract: Energy efficient control of cooling system cooling of an electronic system is provided based, in part, on weighted cooling effectiveness of the components. The control includes automatically determining speed control settings for multiple adjustable cooling components of the cooling system. The automatically determining is based, at least in part, on weighted cooling effectiveness of the components of the cooling system, and the determining operates to limit power consumption of at least the cooling system, while ensuring that a target temperature associated with at least one of the cooling system or the electronic system is within a desired range by provisioning, based on the weighted cooling effectiveness, a desired target temperature change among the multiple adjustable cooling components of the cooling system. The provisioning includes provisioning applied power to the multiple adjustable cooling components via, at least in part, the determined control settings.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 26, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
  • Patent number: 10228908
    Abstract: Embodiments of the present invention provide a method, computer program product and system for increasing sorting efficiency by utilizing a determined crossover point. Initially, a set of data, containing a number of tuples, to be sorted is received. A determination is made as to the number of radix sort iterations to perform based on the number of tuples of the received data. A countdown timer is set based on the determined number of radix sort iterations. Radix sorts iterations are performed recursively. After each iteration, the countdown timer is decreased. Upon the countdown timer reaching zero, one or more comparison sorts is performed on the remainder of the set of data not sorted by the radix sorting.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 12, 2019
    Assignee: International Business Machines Corporation
    Inventors: Lee C. Chu, Joshua R. Tiefenbach
  • Patent number: 10229910
    Abstract: A method for forming a semiconductor device includes blocking a first region of a wafer and forming a plurality of fins in a second region of the wafer. A protective conformal mask layer is deposited over the plurality of fins in the second region, the second region is blocked, and a plurality of fins are formed in the first region of the wafer using a variety of wet and/or dry etching procedures. The protective conformal mask layer protects the plurality of fins in the second region from the variety of wet and/or dry etching procedures that are used to form the plurality of fins in the first region.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 12, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Isabel C. Chu, Lawrence A. Clevenger, Leigh Anne H. Clevenger, Mona A. Ebrish, Gauri Karve, Fee Li Lie, Deepika Priyadarshini, Nicole A. Saulnier, Indira P. Seshadri
  • Patent number: 10216478
    Abstract: Embodiments of the present invention provide a method, computer program product and system for increasing sorting efficiency by utilizing a determined crossover point. Initially, a set of data, containing a number of tuples, to be sorted is received. A determination is made as to the number of radix sort iterations to perform based on the number of tuples of the received data. A countdown timer is set based on the determined number of radix sort iterations. Radix sorts iterations are performed recursively. After each iteration, the countdown timer is decreased. Upon the countdown timer reaching zero, one or more comparison sorts is performed on the remainder of the set of data not sorted by the radix sorting.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: February 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Lee C. Chu, Joshua R. Tiefenbach
  • Publication number: 20190055933
    Abstract: A swash plate type compressor includes a number of cylinders engaged in a receptacle, a number of pistons slidably engaged in the cylinders and movable relative to the cylinders in a reciprocating action, a spindle rotatably engaged in the receptacle, the receptacle includes a bore for partially receiving the spindle, a spring biasing member is engaged with the spindle, a holder is engaged onto the spindle, a swash plate is attached to the holder and coupled to the pistons for moving the pistons in the reciprocating action in the cylinders, and a control valve plate device is engaged with the cylinders for guiding the air to flow from the inlet chamber of the receptacle into the cylinders and from the cylinders into the discharge chamber of the receptacle.
    Type: Application
    Filed: August 17, 2017
    Publication date: February 21, 2019
    Inventors: Henry C. Chu, Xiao Feng
  • Publication number: 20180342486
    Abstract: A light emitting device includes a circuitry substrate and multiple light emitting diodes (LEDs) bonded to the circuitry substrate in a spaced array. The light emitting device also includes a continuous and substantially flat wavelength conversion member covering the light emitting diodes (LEDs) configured to convert the electromagnetic radiation emitted by the light emitting diodes (LEDs) into another wavelength range. The light emitting device also includes a planarized layer configured to support the wavelength conversion member on the circuitry substrate. The light emitting device can also include a light shaper on the wavelength conversion member configured to form emitting windows for the electromagnetic radiation transmitted through the wavelength conversion member forming an output light beam having a desired emitting window size, shape, and edge and to block and minimize scattered electromagnetic radiation from the wavelength conversion layer.
    Type: Application
    Filed: May 29, 2017
    Publication date: November 29, 2018
    Applicant: TSLC CORPORATION
    Inventors: Po-Wei Lee, C. Chu, Tzu-Han Lin
  • Publication number: 20180295754
    Abstract: Energy efficient control of cooling system cooling of an electronic system is provided based, in part, on weighted cooling effectiveness of the components. The control includes automatically determining speed control settings for multiple adjustable cooling components of the cooling system. The automatically determining is based, at least in part, on weighted cooling effectiveness of the components of the cooling system, and the determining operates to limit power consumption of at least the cooling system, while ensuring that a target temperature associated with at least one of the cooling system or the electronic system is within a desired range by provisioning, based on the weighted cooling effectiveness, a desired target temperature change among the multiple adjustable cooling components of the cooling system. The provisioning includes provisioning applied power to the multiple adjustable cooling components via, at least in part, the determined control settings.
    Type: Application
    Filed: June 12, 2018
    Publication date: October 11, 2018
    Inventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Roger R. SCHMIDT, Robert E. SIMONS
  • Publication number: 20180244362
    Abstract: An amphibious vehicle having a smart marine throttle which, when enabled, will control the power to right and left propulsors. The vehicle will then be able to automatically follow a course to a predetermined destination while overcoming the effect of wind, water current and wave action. The invention also includes a method for autopiloting a marine vessel.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Inventors: James R. Nolan, Hei Shea, Peter C. Chu, Brett E. Nibbelink
  • Publication number: 20180205118
    Abstract: A bipolar battery including a first electrochemical cell and a second electrochemical cell is provided.
    Type: Application
    Filed: July 6, 2016
    Publication date: July 19, 2018
    Inventors: Andrew C. Chu, Qingcheng Zeng, Donald G. Dafoe, Steven Kaye
  • Patent number: 9982722
    Abstract: The present invention relates to transferring torque between a first unit, which is typically a mobile machine or a robot, and a second unit, which is typically a fixed or stationary machine. The units are arranged such that a drive coupler of the first unit designed for delivering torque about a drive axis can engage the driven coupler, which belongs to the second unit and has a driven axis, along an engagement direction that is nearly perpendicular to the direction of the driven axis. A lateral displacement mechanism in provided is the first unit to achieve a first-order coaxial alignment between the drive and driven axes. Additional measures such as compliance mechanisms are provided for improving engagement, coupling and reducing the level of axial misalignment in the apparatus and methods of the invention.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: May 29, 2018
    Assignee: SolarCity Corporation
    Inventors: Daniel I. Fukuba, Benjamin D. Sumers, Jeremy P. Dittmer, Merritt J. Jenkins, Kevin C. Chu, Vayardo L. Ruiz
  • Publication number: 20180097002
    Abstract: A method for forming a semiconductor device includes blocking a first region of a wafer and forming a plurality of fins in a second region of the wafer. A protective conformal mask layer is deposited over the plurality of fins in the second region, the second region is blocked, and a plurality of fins are formed in the first region of the wafer using a variety of wet and/or dry etching procedures. The protective conformal mask layer protects the plurality of fins in the second region from the variety of wet and/or dry etching procedures that are used to form the plurality of fins in the first region.
    Type: Application
    Filed: May 12, 2017
    Publication date: April 5, 2018
    Inventors: Isabel C. Chu, Lawrence A. Clevenger, Leigh Anne H. Clevenger, Mona A. Ebrish, Gauri Karve, Fee Li Lie, Deepika Priyadarshini, Nicole A. Saulnier, Indira P. Seshadri
  • Patent number: 9857474
    Abstract: Described is a technology by which GPS-capable devices work with a cloud service to receive satellite visibility-related data. The satellite visibility-related data may be used to determine a location, and/or to abort a search for satellites. The cloud service may use crowd data from other GPS-capable devices. In one aspect, line-of-sight satellites are differentiated from other satellites, and used to determine which satellite signals are more trustworthy. Reflected signals also may be determined.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 2, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Zhiyong Tan, David C. Chu, Lin Zhong, Paramvir Bahl
  • Publication number: 20170363080
    Abstract: A compressor includes a cylinder housing having a number of pistons, a control chamber communicating with piston casings, a suction chamber and a discharge chamber communicating with the piston casings, a control valve includes a receptacle engaged in the cylinder housing, a valve member engaged in the receptacle for controlling the pressurized air to flow from the discharge chamber into the control chamber of the cylinder housing, and a valve element for controlling a bypass of the pressurized air through the receptacle. A bellow device is connected to actuate the sliding member internally, and a sliding member is slidably engaged in the control space of the receptacle, and to operate the valve element externally with a solenoid device.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 21, 2017
    Inventor: Henry C. CHU
  • Publication number: 20170329576
    Abstract: Embodiments of the present invention provide a method, computer program product and system for increasing sorting efficiency by utilizing a determined crossover point. Initially, a set of data, containing a number of tuples, to be sorted is received. A determination is made as to the number of radix sort iterations to perform based on the number of tuples of the received data. A countdown timer is set based on the determined number of radix sort iterations. Radix sorts iterations are performed recursively. After each iteration, the countdown timer is decreased. Upon the countdown timer reaching zero, one or more comparison sorts is performed on the remainder of the set of data not sorted by the radix sorting.
    Type: Application
    Filed: August 4, 2017
    Publication date: November 16, 2017
    Inventors: Lee C. Chu, Joshua R. Tiefenbach
  • Publication number: 20170286459
    Abstract: Embodiments of the present invention provide a method, computer program product and system for increasing sorting efficiency by utilizing a determined crossover point. Initially, a set of data, containing a number of tuples, to be sorted is received. A determination is made as to the number of radix sort iterations to perform based on the number of tuples of the received data. A countdown timer is set based on the determined number of radix sort iterations. Radix sorts iterations are performed recursively. After each iteration, the countdown timer is decreased. Upon the countdown timer reaching zero, one or more comparison sorts is performed on the remainder of the set of data not sorted by the radix sorting.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Lee C. Chu, Joshua R. Tiefenbach
  • Patent number: 9767828
    Abstract: Techniques for enhancing an acoustic echo canceller based on visual cues are described herein. The techniques include changing adaptation of a filter of the acoustic echo canceller, calibrating the filter, or reducing background noise from an audio signal processed by the acoustic echo canceller. The changing, calibrating, and reducing are responsive to visual cues that describe acoustic characteristics of a location of a device that includes the acoustic echo canceller. Such visual cues may indicate that no human being is present at the location, that some subject(s) are engaged in speaking or sound generating activities, or that motion associated with an echo path change has occurred at the location.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: September 19, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Kavitha Velusamy, Wai C. Chu, Ramya Gopalan, Amit S. Chhetri
  • Patent number: 9763357
    Abstract: Methods of fabricating cooling apparatuses with coolant filters are provided which facilitate heat transfer from an electronic component(s). The method includes providing a cooling apparatus which includes a liquid-cooled heat sink with a thermally conductive structure having a coolant-carrying compartment including a region of reduced cross-sectional coolant flow area. The heat sink includes a coolant inlet and outlet in fluid communication with the compartment, and the region of reduced cross-sectional coolant flow area provides an increased effective heat transfer coefficient between a main heat transfer surface of the conductive structure and the coolant. A coolant loop is also provided coupled to the coolant inlet and outlet to facilitate flow of coolant through the coolant-carrying compartment, and a coolant filter positioned to filter contaminants from the coolant passing through the heat sink.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: September 12, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
  • Patent number: D819702
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: June 5, 2018
    Inventor: Henry C. Chu