Patents by Inventor Andrew Chu

Andrew 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).

  • Publication number: 20070117011
    Abstract: A compact, robust, multifunctional and highly manufacturable rechargeable battery cell is provided. The cell design dedicates minimal internal volume to inert components of the cell. This is accomplished, in part, by providing multiple functionalities to individual cell components.
    Type: Application
    Filed: September 5, 2006
    Publication date: May 24, 2007
    Applicant: A123 Systems, Inc.
    Inventors: Jonah Myerberg, Donald Dafoe, Grace Chang, Andrew Chu, Hung-Chieh Shiao
  • Publication number: 20070031450
    Abstract: A formulation for a animal vaccines is provided. The vaccine formulation contains a stabilizer component and a viral immunogen. The stabilizer component includes a substantially TSE/BSE-safe animal-based protein and a vegetable-based protein. The stabilizer component provides for the stabilization of a vaccine throughout its storage and administration.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 8, 2007
    Applicant: Wyeth
    Inventors: Mahesh Kumar, Jeff Rodenberg, Jason Hansen, Andrew Chu
  • Publication number: 20050279796
    Abstract: The present invention relates to a load bearing apparatus, and more particularly, to a passive exoskeleton whereby a load may be placed on the passive exoskeleton and thereby transfer weight of the load from the passive exoskeleton to a ground surface. The passive exoskeleton comprises a rigid body member for attaching proximate a portion of a user's body, a sliding rod attached with the body member, and a ground surface engage-able foot analog attached with the sliding rod. When a user places a load on the body member, weight of the load from is transferred from the body member, through the sliding rod, and into the foot analog, causing the passive exoskeleton to support at least a portion of the load.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 22, 2005
    Inventors: Conrad Chu, Andrew Chu
  • Publication number: 20050233219
    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: Application
    Filed: February 7, 2005
    Publication date: October 20, 2005
    Inventors: Antoni Gozdz, Andrew Chu, Yet-Ming Chiang, Gilbert Riley
  • Publication number: 20050233220
    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: Application
    Filed: March 9, 2005
    Publication date: October 20, 2005
    Inventors: Antoni Gozdz, Andrew Chu, Yet-Ming Chiang, Gilbert Riley
  • Patent number: 6360099
    Abstract: A method of reducing an audio gap in a connection between communication hardware and a mobile unit during a handoff between a first cell and a second cell in a communication network, wherein a first voice processor is communicatively coupled to a mobile switching center that services the first cell, is disclosed. The method includes the steps of determining when the mobile unit is likely to move from the first cell to the second cell, establishing inbound and outbound communicative coupling between the mobile switching center and a second voice processor that services the second cell when the mobile unit is likely to move from the first cell to the second cell and determining that the mobile unit has moved from the first cell to the second cell.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: March 19, 2002
    Assignee: Motorola, Inc.
    Inventors: Christos Kondilis, Andrew Chu
  • Patent number: 5859649
    Abstract: A data processing system (20) has a display controller (28) that uses bus arbitration and data bursting to supply display data for refreshing an LCD screen (49), utilizing a system memory (30) instead of a separate video RAM. A screen DMA (58) fills a line buffer (60) with display data from the system memory (30) in bursts of a predetermined number of words. The screen DMA (58) receives a faster clocking signal than is used by the CPU (22). This allows the screen DMA (58) to run faster than the CPU (22) to reduce bandwidth needed to retrieve the display data. In addition, if the CPU (22) clock frequency is changed for power management purposes, the LCD screen (49) is not affected since it uses a different clock. By using the system memory (30) for storing display data, pin count, packaging costs, and board space are reduced.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: January 12, 1999
    Assignee: Motorola, Inc.
    Inventors: Hing Leung Yiu, Andrew Chu, Glen Zoerner
  • Patent number: 5825706
    Abstract: When an external reset signal EXRST is asserted received by a reset unit (6), it is synchronised with an internal clock to produce an internal reset signal INRST, which is applied to a CPU (4) and other modules in the circuit to reset them. While the internal reset signal INRST is being applied to the CPU, the rate of a refresh signal being generated by a DRAM controller (7) for refreshing data in DRAM (3) is increased. Then, when the external reset signal EXRST is disabled, a delayed reset signal DLYRST is generated and applied to the DRAM controller (7) so that it is reset. The CPU, being already reset, can then quickly reconfigure the DRAM controller and re-enable it to resume refreshing the DRAM (4), thus maintaining the data in the DRAM.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: October 20, 1998
    Assignee: Motorola, Inc.
    Inventors: Ralph Snowden, Wendy Reed, Glen James Zoerner, Wai-Kin Steven Kwan, On Ki Andrew Chu, Hing Leung Yiu