Patents by Inventor A.G. Perera

A.G. Perera 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: 11960202
    Abstract: An EUV microscope device utilizing a source of a beam of EUV light. The light is sent to a collector which produces a first focused EUV beam. A monochromator receives the first focused EUV beam and produces a second EUV beam that is passed to an illumination module. The output of the illumination module is passed to a mask. The reflected beam from the mask is sent to a zone plate and a detector to produce an image.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: April 16, 2024
    Assignee: EUV TECH, INC.
    Inventors: Chami N Perera, David C. Houser, Charles G. Murray, Alexander N. Khodarev, Travis W. Grodt
  • Patent number: 9722888
    Abstract: A system and method are provided for providing using Diameter based signaling to activate and deactivate subscriber centric, visually rendered, services. The system is implemented in a computer infrastructure which includes computer executable code tangibly embodied on a computer readable medium. The executable code is operable to activate and deactivate subscriber centric, visually rendered, services using a Diameter based signaling protocol and support home subscriber server (HSS) based subscriber profiles that pertain to visual characteristics.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: August 1, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pramodh D. Narayan, Mark D. Nielsen, Lasith G. Perera, Sri Ramanathan, Matthew A. Terry, Matthew B. Trevathan
  • Patent number: 9247011
    Abstract: A system and method is provided for reducing latency when providing user location information services. The system is implemented in a computer infrastructure which includes computer executable code tangibly embodied on a computer readable medium. The executable code is operable to trigger a location based service to obtain user location information prior to the user registering for location services.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: January 26, 2016
    Assignee: International Business Machines Corporation
    Inventors: Mark D. Dennard, Lasith G. Perera, Sri Ramanathan, William P. Shaouy, Matthew A. Terry, Matthew B. Trevathan
  • Publication number: 20140304330
    Abstract: A system and method is provided for reducing latency when providing user location information services. The system is implemented in a computer infrastructure which includes computer executable code tangibly embodied on a computer readable medium. The executable code is operable to trigger a location based service to obtain user location information prior to the user registering for location services.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Mark D. DENNARD, Lasith G. PERERA, Sri RAMANATHAN, William P. SHAOUY, Matthew A. TERRY, Matthew B. TREVATHAN
  • Patent number: 8774826
    Abstract: A system and method is provided for reducing latency when providing user location information services. The system is implemented in a computer infrastructure which comprises computer executable code tangibly embodied on a computer readable medium. The executable code is operable to trigger a location based service to obtain user location information prior to the user registering for location services.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: July 8, 2014
    Assignee: International Business Machines Corporation
    Inventors: Mark D. Dennard, Lasith G. Perera, Sri Ramanathan, William P. Shaouy, Matthew A. Terry, Matthew B. Trevathan
  • Publication number: 20130346611
    Abstract: A system and method are provided for providing using Diameter based signaling to activate and deactivate subscriber centric, visually rendered, services. The system is implemented in a computer infrastructure which includes computer executable code tangibly embodied on a computer readable medium. The executable code is operable to activate and deactivate subscriber centric, visually rendered, services using a Diameter based signaling protocol and support home subscriber server (HSS) based subscriber profiles that pertain to visual characteristics.
    Type: Application
    Filed: August 27, 2013
    Publication date: December 26, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pramodh D. NARAYAN, Mark D. NIELSEN, Lasith G. PERERA, Sri RAMANATHAN, Matthew A. TERRY, Matthew B. TREVATHAN
  • Patent number: 8560710
    Abstract: A system and method is provided for providing using Diameter based signaling to activate and deactivate subscriber centric, visually rendered, services. The system is implemented in a computer infrastructure which includes computer executable code tangibly embodied on a computer readable medium. The executable code is operable to activate and deactivate subscriber centric, visually rendered, services using a Diameter based signaling protocol and support home subscriber server (HSS) based subscriber profiles that pertain to visual characteristics.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: October 15, 2013
    Assignee: International Business Machines Corporation
    Inventors: Pramodh D. Narayan, Mark D. Nielsen, Lasith G. Perera, Sri Ramanathan, Matthew A. Terry, Matthew B. Trevathan
  • Patent number: 8543088
    Abstract: A system and method of using Diameter based signaling is provided to track usage to support multiple billing models for visually rendered revenue generating services in an IP Multimedia subsystem based network. The system includes a computer system includes first program instructions to provide usage information to an accounting platform for processing charging information for visually rendered services in an IP Multimedia subsystem based network. The computer system also comprises a computer readable media which stores the first program instructions and a central processing unit to execute the first program instructions.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: September 24, 2013
    Assignee: International Business Machines Corporation
    Inventors: Pramodh D. Narayan, Mark D. Nielsen, Lasith G. Perera, Sri Ramanathan, Matthew A. Terry, Matthew B. Trevathan
  • Publication number: 20100301579
    Abstract: A trailing rear suspension for a motor vehicle having a twist beam axle coupled at its ends to a pair of trailing arms wherein the twist beam axle raises the shear center of the central portion of its cross-beam above the wheel center of the vehicle. The raising of the shear center is achieved by rotating the cross-beam to orient one leg of its cross-section to be aligned with the top of the trailing arms.
    Type: Application
    Filed: April 22, 2010
    Publication date: December 2, 2010
    Inventors: Aaron J. Smith, Anthony A. Marcheff, Hari Sankara Iyer, Dominic G. Perera
  • Publication number: 20100075610
    Abstract: A system and method is provided for reducing latency when providing user location information services. The system is implemented in a computer infrastructure which comprises computer executable code tangibly embodied on a computer readable medium. The executable code is operable to trigger a location based service to obtain user location information prior to the user registering for location services.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 25, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mark D. DENNARD, Lasith G. Perera, Sri Ramanathan, William P. Shaouy, Matthew A. Terry, Matthew B. Trevathan
  • Publication number: 20100041369
    Abstract: A system and method of using Diameter based signaling is provided to track usage to support multiple billing models for visually rendered revenue generating services in an IP Multimedia subsystem based network. The system includes a computer system includes first program instructions to provide usage information to an accounting platform for processing charging information for visually rendered services in an IP Multimedia subsystem based network. The computer system also comprises a computer readable media which stores the first program instructions and a central processing unit to execute the first program instructions.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 18, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pramodh D. NARAYAN, Mark D. Nielsen, Lasith G. Perera, Sri Ramanathan, Matthew A. Terry, Matthew B. Trevathan
  • Publication number: 20100020727
    Abstract: A system and method is provided for providing using Diameter based signaling to activate and deactivate subscriber centric, visually rendered, services. The system is implemented in a computer infrastructure which includes computer executable code tangibly embodied on a computer readable medium. The executable code is operable to activate and deactivate subscriber centric, visually rendered, services using a Diameter based signaling protocol and support home subscriber server (HSS) based subscriber profiles that pertain to visual characteristics.
    Type: Application
    Filed: July 24, 2008
    Publication date: January 28, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pramodh D. Narayan, Mark D. Nielsen, Lasith G. Perera, Sri Ramanathan, Matthew A. Terry, Mathew B. Trevathan
  • Publication number: 20090304230
    Abstract: A system for detecting and tracking targets captured in images, such as people and object targets that are captured in video images from a surveillance network. Targets can be detected by an efficient, geometry-driven approach that determines likely target configuration of the foreground imagery based on estimated geometric information of possible targets. The detected targets can be tracked using a centralized tracking system.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 10, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Nils O. Krahnstoever, Peter Tu, Gianfranco Doretto, Ambalangoda G.A. Perera
  • Publication number: 20090015678
    Abstract: A system and method, the method including stabilizing a video sequence captured by an image capturing system, extracting a subject of interest in the stabilized video sequence to isolate the subject from other objects in the video sequence, determining a trajectory associated with the subject, tracking the trajectory of the subject over a period of time; extracting data associated with the trajectory of the subject based on the tracking; and presenting the extracted data in a user-understandable format.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 15, 2009
    Inventors: Anthony J. Hoogs, Nils Oliver Krahnstoever, A. G. Perera, Xiaoming Liu, Peter Tu, Gianfranco Doretto
  • Publication number: 20070158638
    Abstract: A dual band photodetector for detecting infrared and ultraviolet optical signals is disclosed. Aspects include homojunction and heterojunction detectors comprised of one or more of GaN, AlGaN, and InGaN. In one aspect ultraviolet/infrared dual-band detector is disclosed that is configured to simultaneously detect UV and IR.
    Type: Application
    Filed: October 23, 2006
    Publication date: July 12, 2007
    Inventors: A.G. Perera, Steven Matsik
  • Publication number: 20050258415
    Abstract: A photodetector and method of detecting far infrared optical signals. In one embodiment of the present invention, the photodetctor has a plurality of N barriers, N being an integer greater than 1, each barrier being a layer of a material made from a first and a second group III elements and a first group V element and characterized by a bandgap. The photodetector further has a plurality of N?1 emitters, each emitter being a layer of material made from a third group III element and a second group V element and characterized by a bandgap different from that of the barriers and having at least one free carrier responsive to optical signals, wherein each emitter is located between two barriers so as to form a heterojunction at each interface between an emitter and a barrier.
    Type: Application
    Filed: October 16, 2001
    Publication date: November 24, 2005
    Inventors: A.G. Perera, Steven Matsik
  • Publication number: 20020098729
    Abstract: This invention is a three-wire grounding electric adapter that is comprised of a body, a first end and a second end wherein said first end has a vertical planar face capable of detachably engaging a 3-wire electric cord, said second end has a second vertical planar face. The body has a switch that is mounted on said body for permitting said adapter to complete, or disrupt positive electrical current from electrical receptacle to an electric device of at least two electric contact blades. The blades are fixedly mounted in said second end and extending outwardly from said second vertical planar face for engaging in an electric outlet. A security screw for securing at least one blade of an electric device plug into said adapter locking at least one blade into the adapter.
    Type: Application
    Filed: January 19, 2001
    Publication date: July 25, 2002
    Inventors: Charles A. Conrad, Manoj G. Perera
  • Patent number: 6416362
    Abstract: This invention is a three-wire grounding electric adapter that is comprised of a body, a first end and a second end wherein said first end has a vertical planar face capable of detachably engaging a 3-wire electric cord, said second end has a second vertical planar face. The body has a switch that is mounted on said body for permitting said adapter to complete, or disrupt positive electrical current from electrical receptacle to an electric device of at least two electric contact blades. The blades are fixedly mounted in said second end and extending outwardly from said second vertical planar face for engaging in an electric outlet. A security screw for securing at least one blade of an electric device plug into said adapter locking at least one blade into the adapter.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: July 9, 2002
    Inventors: Charles A. Conrad, Manoj G. Perera