Patents by Inventor Seong-Hwoon Kim
Seong-Hwoon Kim 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).
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Patent number: 7978126Abstract: A system for testing radar in accordance with one embodiment comprising a target motion platform; a target motion platform controller for controlling motion of the platform; a radar responsive tag and a delay line located on the target motion platform; the radar which is being tested; and a motion measurement simulator for inputting data to the radar electronics assembly to simulate movement of the radar. In some embodiments the system further comprises a radar motion platform, wherein the radar electronics assembly is positioned on the radar motion platform; a radar motion platform controller for controlling the movement of the radar motion platform; and a master controller coupled to the radar motion platform controller and the target motion platform controller.Type: GrantFiled: April 28, 2008Date of Patent: July 12, 2011Assignee: General AtomicsInventors: Stanley Isamu Tsunoda, Seong-Hwoon Kim, Josh Pine
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Patent number: 7639987Abstract: The present invention is directed to a method, and associated apparatus, for modifying a radio frequency (RF) response. An exemplary method includes establishing an RF response in a signal path of a device; and controlling an actuator to structurally alter the signal path and dynamically change an impedance of the signal path to alter the RF response.Type: GrantFiled: August 20, 2003Date of Patent: December 29, 2009Assignee: Lockheed Martin CorporationInventors: Seong-Hwoon Kim, Vernon T. Brady, Paul M. Nguyen
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Publication number: 20090046002Abstract: A system for testing radar in accordance with one embodiment comprising a target motion platform; a target motion platform controller for controlling motion of the platform; a radar responsive tag and a delay line located on the target motion platform; the radar which is being tested; and a motion measurement simulator for inputting data to the radar electronics assembly to simulate movement of the radar. In some embodiments the system further comprises a radar motion platform, wherein the radar electronics assembly is positioned on the radar motion platform; a radar motion platform controller for controlling the movement of the radar motion platform; and a master controller coupled to the radar motion platform controller and the target motion platform controller.Type: ApplicationFiled: April 28, 2008Publication date: February 19, 2009Applicant: GENERAL ATOMICS, INC.Inventors: Stanley Isamu Tsunoda, Seong-Hwoon Kim, Josh Pine
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Patent number: 7199358Abstract: An antenna-coupled microbolometer multilayer structure, and associated method of forming an antenna-coupled microbolometer multilayer structure are disclosed, where the structure includes a dielectric layer of dielectric material having at least one locally doped region doped with a dopant to provide a thermal conductive path from a first side to a second side of the dielectric layer. The structure includes an antenna on the first side of the dielectric layer coupled to the locally doped region; a read-out integrated circuit (ROIC) on the second side of the dielectric layer coupled to the locally doped region; a conductive substrate between the dielectric layer and the ROIC; and an electrical connection between the locally doped region and the ROIC, wherein the ROIC is connected to detect, via the electrical connection, a change in electrical resistivity of the locally doped region due to thermal energy absorbed from the antenna.Type: GrantFiled: August 20, 2003Date of Patent: April 3, 2007Assignee: Lockheed Martin CorporationInventors: Seong-Hwoon Kim, Richard A. Leblanc, Lee A. Mirth
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Patent number: 7183966Abstract: A dual-mode target seeking apparatus having a seeker dome defining an aperture and transmissive to microwave frequency energy of a first frequency and to light wave energy at a second frequency and at a third frequency. An optics system within the seeker dome is transmissive to the microwave frequency energy reflective to the light wave energy received via the aperture. A first detector receives the microwave frequency energy via the aperture, and a second detector images a target by the light wave energy of the second and third frequencies via the optics system.Type: GrantFiled: April 23, 2003Date of Patent: February 27, 2007Assignee: Lockheed Martin CorporationInventors: Robert J. Schramek, Ronald E. Byrd, Michael E. Weinstein, Seong-Hwoon Kim, Allan J. Lyon
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Patent number: 7157989Abstract: An inline phase shifter including a waveguide having a waveguide path and one of a micro-electromechanical device and a piezoelectric device positioned sufficiently adjacent to the waveguide for changing physical dimensions of the waveguide path upon actuation of the one device.Type: GrantFiled: March 7, 2002Date of Patent: January 2, 2007Assignee: Lockheed Martin CorporationInventors: Seong-Hwoon Kim, Michael E. Weinstein
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Publication number: 20060116083Abstract: The present invention is directed to a method, and associated apparatus, for modifying a radio frequency (RF) response. An exemplary method includes establishing an RF response in a signal path of a device; and controlling an actuator to structurally alter the signal path and dynamically change an impedance of the signal path to alter the RF response.Type: ApplicationFiled: August 20, 2003Publication date: June 1, 2006Applicant: Lockheed Martin CorporationInventors: Seong-Hwoon Kim, Vernon Brady, Paul Nguyen
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Publication number: 20050264454Abstract: An antenna-coupled microbolometer multilayer structure, and associated method of forming an antenna-coupled microbolometer multilayer structure are disclosed, where the structure includes a dielectric layer of dielectric material having at least one locally doped region doped with a dopant to provide a thermal conductive path from a first side to a second side of the dielectric layer. The structure includes an antenna on the first side of the dielectric layer coupled to the locally doped region; a read-out integrated circuit (ROIC) on the second side of the dielectric layer coupled to the locally doped region; a conductive substrate between the dielectric layer and the ROIC; and an electrical connection between the locally doped region and the ROIC, wherein the ROIC is connected to detect, via the electrical connection, a change in electrical resistivity of the locally doped region due to thermal energy absorbed from the antenna.Type: ApplicationFiled: August 20, 2003Publication date: December 1, 2005Applicant: Lockheed Martin CorporationInventors: Seong-Hwoon Kim, Richard Leblanc, Lee Mirth
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Publication number: 20030169127Abstract: An inline phase shifter including a waveguide having a waveguide path and one of a micro-electromechanical device and a piezoelectric device positioned sufficiently adjacent to the waveguide for changing physical dimensions of the waveguide path upon actuation of the one device.Type: ApplicationFiled: March 7, 2002Publication date: September 11, 2003Inventors: Seong-Hwoon Kim, Michael E. Weinstein