Patents by Inventor George Porter

George Porter 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: 20170357052
    Abstract: A multi-mode optical waveguide device is formed from a plurality of periodically structured waveguides, where each waveguide is configured to guide a carrier signal comprising one spatial mode of a plurality of spatial modes and has at least one segment of each waveguide with a waveguide width that periodically changes along a waveguide path to induce coupling between pairs of spatial modes. In some embodiments, the at least one segment is disposed at a location along the waveguide path at which maximal mode overlap occurs. The waveguide device may be used as for space-division multiplexing and as an optical switch.
    Type: Application
    Filed: January 15, 2016
    Publication date: December 14, 2017
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Andrew GRIECO, Yeshaiahu FAINMAN, George PORTER
  • Publication number: 20110161294
    Abstract: The disclosed embodiments provide a system that determines whether to dynamically replicate data segments on a node in a computing cluster that stores a collection of data segments. During operation, the system identifies a data segment from the collection that is predicted to be frequently accessed by future tasks executing in the cluster. The system then determines a slowdown that would result for the current workload of the node if the data segment were to be replicated to the node. The system also determines a predicted future benefit that would be associated with replicating the data segment to the node. If the predicted slowdown is less than the predicted future benefit, the replication system replicates the data segment to the node.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Applicant: SUN MICROSYSTEMS, INC.
    Inventors: David Vengerov, George Porter
  • Patent number: 7958059
    Abstract: A system and method for facilitating the accurate entry of information into a highly structured database by initially extracting information from a plurality of nonuniformly formatted source data streams, e.g., documents/files, and subsequent interactions with users before storing the accepted and/or modified information into the database. Embodiments of the present invention provide an interactive path for each user (e.g., the author of the source document/file) to interactively modify the extracted data, e.g., according to the source document/file. Preferably, this interactive path is provided via the Internet and the extracted information can be modified by editing and/or selectively copying portions of the source documents/files to supplement and/or modify the extracted information.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: June 7, 2011
    Assignee: Kenexa Brassring, Inc.
    Inventors: David Scott de Hilster, Alan George Porter, John Reese
  • Patent number: 7355626
    Abstract: A surveillance system using an array of detectors onto which energy from the scene under surveillance is focused can indicate the direction of an event that has been recognized. The invention uses two or more arrays to locate events in three dimensions, and to define regions within the three dimensional space being surveyed. The events are located by detecting which elements from the respective arrays are stimulated by the occurrence of an event, and determining the location of the event to be at the intersection of the fields of view of the stimulated elements.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 8, 2008
    Assignee: Infrared Integrated Systems Limited
    Inventors: Stephen George Porter, John Lindsay Galloway
  • Publication number: 20070205215
    Abstract: An adhesive liquid dispensing apparatus includes a gun manifold, a dispensing module, and a dispensing orifice. The inlet port of the gun manifold is directly coupled with a reservoir of adhesive hot melt liquid that is fixedly attached to the manifold. The contents of the reservoir are under pressure so that the adhesive hot melt liquid is dispensed from the adhesive liquid dispensing apparatus without the need for heated supply hoses to connect the inlet port of the manifold to a remote source of adhesive hot melt liquid. Preferably, the adhesive liquid dispensing system is coupled with a robot that controls the positioning of the system during an adhesive liquid dispensing operation.
    Type: Application
    Filed: May 2, 2007
    Publication date: September 6, 2007
    Applicant: NORDSON CORPORATION
    Inventors: George Porter, Leslie Varga
  • Patent number: 7008063
    Abstract: An optical detection system for forming an image of a field of view in an object plane onto an image plane in which the electromagnetic radiation image is transmitted to a detector array at the image plane via an optical distorting element such as a reflector 11, so as to impose a non linear relationship between areas in the image and object planes.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 7, 2006
    Assignee: Infrared Integrated Systems Limited
    Inventors: Stephen George Porter, John Lindsay Galloway
  • Patent number: 6992291
    Abstract: A method of testing resistance bolometer arrays involves applying different voltages to different bolometers so as to produce a detectable difference between adjacent bolometers under normal conditions. The voltages may be applied in a recognizable pattern so that faults can be readily identified from a visual display of the array.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: January 31, 2006
    Assignee: Infrared Integrated Systems Limited
    Inventors: Stephen George Porter, John Fox, Bhajan Singh
  • Publication number: 20060016510
    Abstract: An adhesive liquid dispensing apparatus includes a gun manifold, a dispensing module, and a dispensing orifice. The inlet port of the gun manifold is directly coupled with a reservoir of adhesive hot melt liquid that is fixedly attached to the manifold. The contents of the reservoir are under pressure so that the adhesive hot melt liquid is dispensed from the adhesive liquid dispensing apparatus without the need for heated supply hoses to connect the inlet port of the manifold to a remote source of adhesive hot melt liquid. Preferably, the adhesive liquid dispensing system is coupled with a robot that controls the positioning of the system during an adhesive liquid dispensing operation.
    Type: Application
    Filed: July 21, 2004
    Publication date: January 26, 2006
    Inventors: George Porter, Leslie Varga
  • Publication number: 20050267985
    Abstract: An embodiment of a method of routing a packet between nodes of a network begins with a step of determining that a route of an external network from a source node to a network node provides an expected near minimum transmission time for transmission of the packet from the source node to a destination node. The method continues with a step of determining that a packet queue for a network link at a source node exceeds a threshold. The method concludes with a step of routing the packet to the destination node via the external network and the network node.
    Type: Application
    Filed: May 12, 2004
    Publication date: December 1, 2005
    Inventors: Minwen Ji, George Porter
  • Patent number: 6844538
    Abstract: A radiation detection apparatus is capable of detecting and locating events, such as a fire or the appearance of an intruder, in a scene under surveillance. The apparatus comprises an array of detector elements, e.g. infrared detectors. The apparatus has two fields of view, namely a first field of view defined by a lens providing a single focussed image of a distant scene on the array and a second field of view defined by a reflector arranged between a plane of the array and a plane of the lens whereby to reflect onto the detector array radiation entering the lens from outside the first field of view. One or more processors are provided to distinguish events in the second field of view from those in the first field of view.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: January 18, 2005
    Assignee: Infrared Integrated Systems Limited
    Inventors: Stephen Hollock, Bryan Lorrain Humphreys Wilson, Stephen George Porter
  • Patent number: 6809595
    Abstract: A two dimensional array of resistive bolometers (B) is arranged in rows and columns. Amplifiers (A0, A1 etc) amplify signals obtained from the bolometers. Instead of providing one amplifier per column, a smaller number of amplifiers is used each of which is connected to a plurality of column sense lines (L) via a multiplexer (M0, M1 etc).
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: October 26, 2004
    Assignee: Infrared Integrated Systems Limited
    Inventors: Stephen George Porter, John Fox, Bhajan Singh
  • Patent number: 6788153
    Abstract: A two dimensional array of resistive bolometers (B) is arranged in rows and columns. Amplifiers (A0, A1 etc) amplify signals obtained from the bolometers. Instead of providing one amplifier per column, a smaller number of amplifiers is used each of which is connected to a plurality of column sense lines (L) via a multiplexer (M0, M1 etc).
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: September 7, 2004
    Assignee: Infrared Integrated Systems Limited
    Inventors: Stephen George Porter, John Fox, Bhajan Singh
  • Publication number: 20040135629
    Abstract: A two dimensional array of resistive bolometers (B) is arranged in rows and columns. Amplifiers (A0, A1 etc) amplify signals obtained from the bolometers. Instead of providing one amplifier per column, a smaller number of amplifiers is used each of which is connected to a plurality of column sense lines (L) via a multiplexer (M0, M1 etc).
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Applicant: Infrared Integrated Systems Limited
    Inventors: Stephen George Porter, John Fox, Bhajan Singh
  • Patent number: 6693279
    Abstract: A signal processing technique applied to the readout of two-dimensional detector arrays provides a dynamic correction mechanism for the varying offsets of the different elements of the array. The outputs of the elements are supplied to an offset correction circuit operative to compensate for the differences in the d.c. or low frequency outputs from a predetermined voltage wherein a fraction of the difference is subtracted at each successive cycle to gradually reduce the difference.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: February 17, 2004
    Assignee: InfraRed Integrated Systems Limited
    Inventors: Stephen George Porter, Graham Robert Jones, David Harry Broughton, John Fox, Bhajan Singh
  • Patent number: 6545124
    Abstract: Described is a new class of polypeptide cell modulators characterized by being composed of two covalently linked cell modulators in a linear polypeptide sequence. Such dual function polypeptides have new and particularly useful activities when the component polypeptide cell modulators are interferons, lymphokines or cytotoxins which act through different and specific cell receptors to initiate complementary biological activities. Also described is a peptide linker segment comprising a mouse IgG gamma 2b “hinge” in which the four cysteines of the “hinge” have been converted to serines.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: April 8, 2003
    Assignee: Pharmacia Corporation
    Inventors: Leslie David Bell, Keith Graham McCullagh, Alan George Porter
  • Publication number: 20020185602
    Abstract: A two dimensional array of resistive bolometers (B) is arranged in rows and columns. Amplifiers (A0, A1 etc) amplify signals obtained from the bolometers. Instead of providing one amplifier per column, a smaller number of amplifiers is used each of which is connected to a plurality of column sense lines (L) via a multiplexer (M0, M1 etc).
    Type: Application
    Filed: March 11, 2002
    Publication date: December 12, 2002
    Inventors: Stephen George Porter, John Fox, Bhajan Singh
  • Publication number: 20020179838
    Abstract: A signal processing technique applied to the readout of two-dimensional detector arrays provides a dynamic correction mechanism for the varying offsets of the different elements of the array. The outputs of the elements are supplied to an offset correction circuit operative to compensate for the differences in the d.c. or low frequency outputs from a predetermined voltage wherein a fraction of the difference is subtracted at each successive cycle to gradually reduce the difference.
    Type: Application
    Filed: December 13, 2001
    Publication date: December 5, 2002
    Inventors: Stephen George Porter, Graham Robert Jones, David Harry Broughton, John Fox, Bhajan Singh
  • Publication number: 20020175996
    Abstract: A surveillance system using an array of detectors onto which energy from the scene under surveillance is focused can indicate the direction of an event that has been recognized. The invention uses two or more arrays to locate events in three dimensions, and to define regions within the three dimensional space being surveyed. The events are located by detecting which elements from the respective arrays are stimulated by the occurrence of an event, and determining the location of the event to be at the intersection of the fields of view of the stimulated elements.
    Type: Application
    Filed: April 29, 2002
    Publication date: November 28, 2002
    Inventors: Stephen George Porter, John Lindsay Galloway
  • Patent number: 6476859
    Abstract: An image of a scene is focused onto a two dimensional array of passive infrared sensing elements mounted on and connected to an integrated circuit, and used to detect the location of events within the scene; for example, movement, change in temperature, or the emission of a gas. In this invention knowledge of the location of the event is derived from the detection of signals from one or more elements of the array, and is used to control the operation of a mechanism such that a portion of the scene including the event location is imaged onto a video imaging device operating in the visible or near infrared. Such mechanisms include a zoom lens or mirror arrangement and mechanical scanning in elevation and/or azimuth. Examples of suitable imaging devices for use with the thermal detector array include CCD camera chips and other electrically scanned silicon photovoltaic arrays. The CCD array might for example be used in a CCD camera, which is used to identify an intruder, or to read the number plate of a car.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: November 5, 2002
    Assignee: Infrared Integrated Systems Limited
    Inventors: John Lindsay Galloway, Bryan Lorrain Humphreys Wilson, Stephen George Porter
  • Publication number: 20020159037
    Abstract: An optical detection system for forming an image of a field of view in an object plane onto an image plane in which the electromagnetic radiation image is transmitted to a detector array at the image plane via an optical distorting element such as a reflector 11, so as to impose a non linear relationship between areas in the image and object planes.
    Type: Application
    Filed: December 21, 2001
    Publication date: October 31, 2002
    Inventors: Stephen George Porter, John Lindsay Galloway