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: 7270174
    Abstract: Method, system and program product are provided for facilitating operation of a cooling system designed to provide system coolant to one or more electronics subsystems of a computing environment. The technique includes automatically checking at least one coolant loop of the cooling system for a leak. The automatically checking includes isolating the at least one coolant loop from coolant flow through the cooling system and checking for drop in coolant pressure within the at least one coolant loop. Upon detection of a drop in coolant pressure, isolation of the coolant loop is retained thereby allowing operation of the cooling system to continue notwithstanding detection of a leak in the at least one coolant loop.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: September 18, 2007
    Assignee: International Business Machines Corporation
    Inventors: Richard C. Chu, Michael J. Ellsworth, Jr., Roger R. Schmidt, Robert E. Simons, Randy J. Zoodsma
  • Patent number: 7261979
    Abstract: A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a high capacity negative electrode in electronic contact with a negative electrode current collector, said current collector in electrical connection with an external circuit, a separator positioned between and in ionic contact with the cathode and the anode, and an electrolyte in ionic contact with the positive and negative electrodes, wherein the total area specific impedance for the cell and the relative area specific impedances for the positive and negative electrodes are such that, during charging at greater than or equal to 4C, the negative electrode potential is above the potential of metallic lithium.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: August 28, 2007
    Assignee: A123 Systems, Inc.
    Inventors: Antoni S. Gozdz, Andrew C. Chu, Yet Ming Chiang, Gilbert N. Riley, Jr.
  • Patent number: 7254888
    Abstract: A method of fabricating a heat sink includes preparing a surface of a graphite-based substrate and removing particulate matter generated from the preparation of the surface of the substrate. A metal-based coating is applied at the surface of the prepared substrate. The prepared substrate having the metal-based coating is arranged to form a heat sink structure.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: August 14, 2007
    Assignee: International Business Machines Corporation
    Inventors: Richard C. Chu, Michael J. Ellsworth, Jr., Egidio Marotta, Prabjit Singh
  • Patent number: 7233494
    Abstract: A cooling apparatus and method of fabrication are provided for facilitating removal of heat from a heat generating electronic device. The cooling apparatus includes a plurality of thermally conductive fins coupled to and projecting away from a surface to be cooled. The fins facilitate transfer of heat from the surface to be cooled. The apparatus further includes an integrated manifold having a plurality of inlet orifices for injecting coolant onto the surface to be cooled, and a plurality of outlet openings for exhausting coolant after impinging on the surface to be cooled. The inlet orifices and the outlet openings are interspersed in a common surface of the integrated manifold. Further, the integrated manifold and the surface to be cooled are disposed with the common surface of the manifold and the surface to be cooled in spaced, opposing relation, and with the plurality of thermally conductive fins disposed therebetween.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: June 19, 2007
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
  • Patent number: 7230727
    Abstract: A system for sensing an absolute position in two dimensions includes a target having a two-dimensional target pattern. A sensor captures an image of a first subset of the target pattern. A controller generates a first image vector representing summations of rows of pixel values from the image, and a second image vector representing summations of columns of pixel values from the image. The controller is configured to determine an absolute two-dimensional position of the first subset with respect to an origin of the target pattern based on the first and the second image vectors and a plurality of target vectors that represent the target pattern.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: June 12, 2007
    Assignee: Agilent Technologies, Inc.
    Inventors: David C. Chu, Evan R. Whitney
  • Patent number: 7231344
    Abstract: The shape of windows used during linear predictive analysis can be optimized through the use of gradient-descent based window optimization procedures. Window optimization may be achieved fairly precisely through the use of a primary optimization procedure, or less precisely through the use of an alternate optimization procedure. Both optimization procedures use the principle of gradient-descent to find a window sequence that will either minimize the prediction error energy or maximize the segmental prediction gain. However, the primary optimization procedure uses a Levinson-Durbin based algorithm to determine the gradient while the alternate optimization procedure uses an estimate of the gradient based on the basic definition of a derivative. These optimization procedures can be implemented as computer readable software code. Additionally, the optimization procedures may be implemented in a window optimization device which generally includes a window optimization unit and may also include an interface unit.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: June 12, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventor: Wai C. Chu
  • Patent number: 7206203
    Abstract: An electronic device cooling assembly and fabrication method are provided which include a manifold with an orifice for injecting a cooling liquid onto a surface to be cooled, and an elastic pin support material with an opening aligned to the orifice of the manifold. Multiple thermally conductive pins are mounted within the support material, extending therefrom, and are sized to physically contact the surface to be cooled. The support material has a thickness and compliance which facilitates thermal interfacing of the pins to the surface by allowing second ends thereof to move vertically and tilt. The second end of each pin has a planar surface which is normal to an axis of the pin, and the support material facilitates the planar surfaces of the second pin ends establishing planar contact with the surface to be cooled, notwithstanding that the surface may be other than planar.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: April 17, 2007
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Robert E. Simons, Roger R. Schmidt
  • Patent number: 7203226
    Abstract: A communication apparatus having a communication interface for communicating with a first remote entity, the first remote entity including a decoder capable of decoding data encoded according to a first encoding format. The communication apparatus includes a control entity operative to detect an attempt by a second remote entity to establish a TFO connection with the communication apparatus via the communication interface, for sending to the first remote entity, via the communication apparatus data encoded according to a second encoding format, different from the first encoding format, where the decoder at the first remote entity is incompatible with data encoded according to the second encoding format.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: April 10, 2007
    Assignee: Nortel Networks Limited
    Inventors: Rafi Rabipour, David Brombal, Chung Cheung C. Chu
  • Patent number: 7200552
    Abstract: An optimization algorithm is provided for linear prediction based speech coding systems. The optimization algorithm minimizes the error between original speech samples and synthesized speech samples. Optimized linear prediction coefficients are computed directly from a system difference equation without converting the coefficients into the root-domain.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 3, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Wai C. Chu, Khosrow Lashkari
  • Patent number: D540348
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 10, 2007
    Inventor: Henry C. Chu
  • Patent number: D540351
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 10, 2007
    Inventor: Henry C. Chu
  • Patent number: D540824
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 17, 2007
    Inventor: Henry C. Chu
  • Patent number: D541307
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 24, 2007
    Inventor: Henry C. Chu
  • Patent number: D541308
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 24, 2007
    Inventor: Henry C. Chu
  • Patent number: D541819
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 1, 2007
    Inventor: Henry C. Chu
  • Patent number: D541820
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 1, 2007
    Inventor: Henry C. Chu
  • Patent number: D541821
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: May 1, 2007
    Inventor: Henry C. Chu
  • Patent number: D549242
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: August 21, 2007
    Inventor: Henry C. Chu
  • Patent number: D549476
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: August 28, 2007
    Assignee: Plus Corporation
    Inventor: Zooey C. Chu
  • Patent number: D549737
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: August 28, 2007
    Inventor: Henry C. Chu