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).

  • Publication number: 20100068083
    Abstract: A compressor and electric motor combination includes a compressor including a housing, and a shaft extended out of the housing, an electric motor including a receptacle, and a spindle extended out of the receptacle, and a coupling device for coupling the shaft of the compressor and the spindle of the electric motor together and for allowing the compressor to be operated by the electric motor, without being driven by the engine of the automobile, for allowing the compressor to be actuated to operate the air conditioning system even when the engine of the automobile is stopped, and for preventing the engine of the automobile from idling.
    Type: Application
    Filed: September 17, 2008
    Publication date: March 18, 2010
    Inventor: Henry C. Chu
  • Patent number: 7673132
    Abstract: An aggregated server blade system includes a plurality of individual server blades and a management module which can be designated as a bootable device. A boot list maintained and executed in each server blade includes a management module entry in its list of bootable devices. In response to the management module entry being selected or otherwise made active as the bootable device for a particular blade, an alternative bootable-devices list maintained on the management module is referenced and the boot process proceeds according to the alternative list.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: March 2, 2010
    Assignee: International Business Machines Corporation
    Inventors: Simon C. Chu, Richard A. Dayan, Eric R. Kern, William J. Piazza
  • Publication number: 20100046672
    Abstract: A system for and method of detecting interference in a communication system. In an embodiment, a receiver acquires a communication signal, the communication signal comprising a carrier signal and an in-band interference signal. A signal processor conditions the communication signal and extracts the in-band interference signal without interrupting the carrier signal to form an error signal. The error signal is representative of the in-band interference signal. The signal processor is further configured to process the error signal to obtain one or more spectral properties of the error signal in a manner suitable for display.
    Type: Application
    Filed: November 4, 2009
    Publication date: February 25, 2010
    Inventors: Jeffrey C. Chu, Michael L. Downey
  • Patent number: 7665325
    Abstract: A multi-fluid cooling system and method for cooling an electronic device are provided which employ freeze protection when in a shipping state. The cooling system includes a coolant loop having an expansion tank containing first and second fluids, which are immiscible and of different densities, and the second fluid freezes at a lower temperature than the first. The coolant loop further includes a first valve for facilitating coupling of the first fluid into the coolant loop and a second valve for facilitating coupling of the second fluid into the coolant loop, the first and second valves being independently controllable. Control logic electronically controls actuation of the first and second valves to automatically pass the first fluid through the coolant loop when the system is in an operational state and to automatically maintain the second fluid in the coolant loop when the system is in a shipping state.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: February 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
  • Patent number: 7667640
    Abstract: Embodiments provide systems and methods for determining the geolocation of an emitter on earth. A solution is obtained from two TDOA measurements that need not be acquired at the same time. A solution is obtained from a TDOA measurement and an FDOA measurement that need not be acquired at the same time and need not be coming from the same satellite pair. A location of an emitter can be determined from minimizing a cost function of the weighted combination of the six solutions derived from the two TDOA measurements and the two FDOA measurements, where the weight of each solution in the combination is determined based on the intersection angle of the two curves that define the possible locations of the emitter based on the TDOA and/or FDOA measurements.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: February 23, 2010
    Assignee: Glowlink Communications Technology, Inc.
    Inventors: Dominic K. C. Ho, Jeffrey C. Chu, Michael L. Downey
  • Publication number: 20100039949
    Abstract: Data communication apparatus including a port and a control entity. The control entity is operative to establish a connection with a remote entity over a first path and negotiate with the remote entity using in-band signaling over the first path establishment of a second path allowing the exchange of data between the data communication apparatus and the remote entity. The invention presents advantages from the standpoint of ease of implementation and bandwidth and resource savings. The use of an in-band messaging protocol to negotiate a establishment of the second path can be implemented generally in a straight forward manner. At the same time, the ability to transfer at least part of the connection to the second path avoids the drawbacks that would arise if that part of the connection were constrained to the first path. This feature allows the operator to take advantage of benefits provided by the second path but not available to the first path.
    Type: Application
    Filed: July 27, 2009
    Publication date: February 18, 2010
    Applicant: Nortel Networks Limited
    Inventors: Rafi Rabipour, Chung Cheung C. Chu, Pierre Gendron, William Navarro, Paul Boudreaux
  • Patent number: 7663547
    Abstract: Embodiments provide systems and methods for determining the geolocation of an emitter on earth based on weighted least-squares estimation based on two TDOA and two FDOA measurements, none of which need to be acquired at the same time. The four TDOA and FDOA measurements and the errors in each of the measurements are determined. Weights for the errors in the TDOA and FDOA measurements are determined, and the weights are applied in a weighted errors function. The weights account for the errors in the measurements and the errors in the satellite positions and velocities, and are dependent on the localization geometry. The weighted errors function is minimized to determine the location estimate of the unknown emitter.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: February 16, 2010
    Assignee: Glowlink Communications Technology, Inc.
    Inventors: Dominic K. C. Ho, Jeffrey C. Chu, Michael L. Downey
  • Patent number: 7660121
    Abstract: A cooling system and method are provided for cooling air exiting one or more electronics racks of a data center. The cooling system includes at least one cooling station separate and freestanding from at least one respective electronics rack of the data center, and configured for disposition of an air outlet side of electronics rack adjacent thereto for cooling egressing air from the electronics rack. The cooling station includes a frame structure separate and freestanding from the respective electronics rack, and an air-to-liquid heat exchange assembly supported by the frame structure. The heat exchange assembly includes an inlet and an outlet configured to respectively couple to coolant supply and coolant return lines for facilitating passage of coolant therethrough. The air-to-liquid heat exchange assembly is sized to cool egressing air from the air outlet side of the respective electronics rack before being expelled into the data center.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: February 9, 2010
    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: 7657347
    Abstract: Monitoring method and system are provided for dynamically determining flow rate of a first fluid and a second fluid through a heat exchanger. The method includes: pre-characterizing the heat exchanger to generate pre-characterized correlation data correlating effectiveness of the heat exchanger to various flow rates of the first and second fluids through the heat exchanger; sensing inlet and outlet temperatures of the first and second fluids through the heat exchanger, when operational; automatically determining flow rates of the first and second fluids through the heat exchanger using the sensed inlet and outlet temperatures of the first and second fluids and the pre-characterized correlation data; and outputting the determined flow rates of the first and second fluids. The automatically determining employs the determined effectiveness of the heat exchanger in interpolating from the pre-characterized correlation data the flow rates of the first and second fluids.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: February 2, 2010
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Robert E. Simons
  • Patent number: 7654804
    Abstract: A fluid displacement apparatus includes a housing for receiving a refrigerant, a driving shaft rotatably received in the housing, a magnetic clutch attached to the driving shaft for rotation transmitting purposes, a fixed scroll disposed in the housing, an orbiting scroll rotatably received and engaged in the housing and interfitting with the fixed scroll for compressing the refrigerant and for generating a pressurized refrigerant, the housing includes a compartment communicating with the inner chamber of the housing with a passage for receiving a pressure sensing device which may sense the pressure of the pressurized refrigerant for detecting whether the refrigerant in the housing is over pressure or not.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: February 2, 2010
    Inventor: Henry C. Chu
  • Publication number: 20100011352
    Abstract: A method of matching one or more software plug-ins to a user, the method including: defining one or more trigger events based on one or more actions of an application; monitoring a use of the application for the one or more trigger events; generating a suggestion of one or more plug-ins based on the use of the application; and generating a notification including the suggestion.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 14, 2010
    Applicant: International Business Machines Corporation
    Inventors: Danae C. Chu, Shruti Gandhi, Zachary A. Garbow, Clara Chia-Yen Liang, Timothy M. Trifilo
  • Publication number: 20100002393
    Abstract: Apparatus and method are provided for facilitating liquid cooling one or more components of an electronic subsystem chassis disposed within an electronics rack. The apparatus includes a rack-level coolant manifold assembly and at least one movable chassis-level manifold subassembly. The rack-level coolant manifold assembly includes a rack-level inlet manifold and a rack-level outlet manifold, and each movable chassis-level manifold subassembly includes a chassis-level coolant inlet manifold coupled in fluid communication with the rack-level inlet manifold, and a chassis-level coolant outlet manifold coupled in fluid communication with the rack-level outlet manifold. The chassis-level manifold subassembly is slidably coupled to the electronics rack to facilitate access to one or more removable components of the electronic subsystem chassis. In one embodiment, the electronics subsystem chassis is a multi-blade center system having multiple removable blades, each blade being an electronics subsystem.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. CAMPBELL, Richard C. CHU, Martin J. CRIPPEN, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Vinod KAMATH, Jason A. MATTESON, Roger R. SCHMIDT, Robert E. SIMONS
  • Patent number: 7642914
    Abstract: Automated locating of electronics racks within a data center room is provided. The automated approach employs n wireless identification units associated with respective electronics racks of the data center, and first and second transceiver units positioned within the data center along a common plane at known X,Y locations. A monitor unit is in communication with the transceiver units, and automatically determines X,Y location within the data center room of each respective electronics rack employing, in part, first time differentials between transmission of a first broadcast signal by the first transceiver unit and receipt of response signals from the wireless identification units, second time differentials between transmission of a second broadcast signal from the second transceiver unit and receipt of response signals thereto from the wireless identification units, and the known X,Y locations within the data center of the transceiver units.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: January 5, 2010
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Robert E. Simons
  • Patent number: 7641101
    Abstract: A cooling system assembly method including: providing a support fixture having a multi-level support surface and multiple positioning dowels extending therefrom; positioning multiple liquid-cooled cold plates on the support surface employing the multiple dowels, the dowels providing relative positioning and alignment of the cold plates for facilitating subsequent coupling thereof to electronic components to be cooled; sealing multiple coolant-carrying tubes in fluid communication with the cold plates; and sealing a header subassembly to the coolant-carrying tubes to provide an assembled liquid-based cooling system. In operation, the support fixture facilitates shipping of the assembled cooling system by maintaining the components in fixed relation. A transfer fixture is employed in removing the cooling system from the support fixture and placing the cooling system in engagement with the electronics system.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: January 5, 2010
    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: 7639761
    Abstract: A method and system for measuring noise and or interference in a communications signal without taking the signal out of service. In the present invention the communications signal is converted from an RF signal into an IF signal. The IF signal is then digitized and stored. The stored signal is processed to determine the interference signal. The interference signal is calculated from an error vector produced by a blind equalizer demodulator. The interference signal is extracted and presented to a user.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: December 29, 2009
    Assignee: Glowlink Communications Technology, Inc.
    Inventors: Jeffrey C. Chu, Michael L. Downey
  • Patent number: 7639601
    Abstract: Data communication apparatus including a port and a control entity. The control entity is operative to establish a connection with a remote entity over a first path and negotiate with the remote entity using in-band signaling over the first path establishment of a second path allowing the exchange of data between the data communication apparatus and the remote entity. The invention presents advantages from the standpoint of ease of implementation and bandwidth and resource savings. The use of an in-band messaging protocol to negotiate a establishment of the second path can be implemented generally in a straight forward manner. At the same time, the ability to transfer at least part of the connection to the second path avoids the drawbacks that would arise if that part of the connection were constrained to the first path. This feature allows the operator to take advantage of benefits provided by the second path but not available to the first path.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: December 29, 2009
    Assignee: Nortel Networks Limited
    Inventors: Rafi Rabipour, Chung Cheung C. Chu, Pierre Gendron, William Navarro, Paul Boudreaux
  • Patent number: 7639498
    Abstract: A conductive heat transport cooling system and method are provided for cooling primary and secondary heat generating components of an electronics system. The cooling system includes a liquid-based cooling subsystem including at least one liquid-cooled cold plate physically coupled to at least one primary heat generating component of the electronics system, and a thermally conductive coolant-carrying tube coupled to and in fluid communication with the at least one liquid-cooled cold plate. A thermally conductive auxiliary structure is coupled to the coolant-carrying tube and to at least one secondary heat generating component of the electronics system. When in use, the thermally conductive auxiliary structure provides conductive heat transport from the at least one secondary heat generating component to the at least one thermally conductive coolant-carrying tube coupled thereto, and hence via convection to liquid coolant passing therethrough.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: December 29, 2009
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Randall G. Kemink, Roger R. Schmidt, Robert E. Simons
  • Patent number: 7639499
    Abstract: Apparatus and method are provided for facilitating liquid cooling one or more components of an electronic subsystem chassis disposed within an electronics rack. The apparatus includes a rack-level coolant manifold assembly and at least one movable chassis-level manifold subassembly. The rack-level coolant manifold assembly includes a rack-level inlet manifold and a rack-level outlet manifold, and each movable chassis-level manifold subassembly includes a chassis-level coolant inlet manifold coupled in fluid communication with the rack-level inlet manifold, and a chassis-level coolant outlet manifold coupled in fluid communication with the rack-level outlet manifold. The chassis-level manifold subassembly is slidably coupled to the electronics rack to facilitate access to one or more removable components of the electronic subsystem chassis. In one embodiment, the electronics subsystem chassis is a multi-blade center system having multiple removable blades, each blade being an electronics subsystem.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: December 29, 2009
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Martin J. Crippen, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Vinod Kamath, Jason A. Matteson, Roger R. Schmidt, Robert E. Simons
  • Patent number: D609012
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: February 2, 2010
    Inventor: Henry C. Chu
  • Patent number: D609557
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: February 9, 2010
    Inventor: Henry C. Chu