Patents by Inventor Carson R. White
Carson R. White 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: 8957831Abstract: In one embodiment an artificial magnetic conductor assembly to reflect an electromagnetic signal with a phase shift that measures between ?90 degrees and +90 degrees at a target frequency comprises a first ground plane, a plurality of metallic elements disposed at a first distance from the first ground plane, a plurality of capacitors coupling adjacent metallic elements of the plurality of metallic elements, and a dielectric substrate disposed between the first ground plane and the array of metallic elements and formed from a material having a relative permittivity that measures between 1 and 20.Type: GrantFiled: March 30, 2010Date of Patent: February 17, 2015Assignee: The Boeing CompanyInventors: Daniel J. Gregoire, Carson R. White
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Patent number: 8704719Abstract: An antenna includes a CPW transmission line and a radiating portion. The radiating portion is coupled to the CPW transmission line and is substantially coplanar with the CPW transmission line. The radiating portion is configured to produce a first linear polarization at a first frequency, a circular polarization at a second frequency, and a second linear polarization at a third frequency. The radiating portion includes a conductive material extending from the CPW transmission line and forming a plurality of openings in the radiating portion. The openings are asymmetric with respect to a first region of the radiating portion that is disposed on a first side of the CPW transmission line and a second region of the radiating portion that is disposed on a second side of the CPW transmission line.Type: GrantFiled: November 23, 2010Date of Patent: April 22, 2014Assignee: General Motors LLCInventors: Hyok Jae Song, Carson R. White, James H. Schaffner, Arthur Bekaryan, Eray Yasan
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Patent number: 8686906Abstract: A microwave antenna assembly includes a first dielectric layer, a second dielectric layer, a conductive layer, a first conductive patch, and a second conductive patch. The conductive layer is disposed in an inner region between the first dielectric layer and the second dielectric layer. The conductive layer includes a slot. A first conductive patch is surrounded by the slot. The second conductive patch is disposed against the second dielectric layer outside the inner region, and is electromagnetically coupled to the first conductive patch.Type: GrantFiled: September 20, 2010Date of Patent: April 1, 2014Assignee: GM Global Technology Operations LLCInventors: Carson R. White, Hyok Jae Song, Eray Yasan
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Patent number: 8615028Abstract: A vertically integrated optical phased array has an array of a plurality of vertical cavity surface emitting lasers disposed in an aperiodic arrangement thereof, the plurality of vertical cavity surface emitting lasers having light emitting ports disposed parallel to one another. An array of a plurality of vertical cavity phase modulators disposed in the same aperiodic arrangement as the array of the plurality of vertical cavity surface emitting lasers, with individual modulators of said array of a plurality of vertical cavity phase modulators each being disposed in optical alignment with an injection port of a corresponding one of said plurality of vertical cavity surface emitting lasers.Type: GrantFiled: October 12, 2010Date of Patent: December 24, 2013Assignee: HRL Laboratories, LLCInventors: Keyvan Sayyah, James H. Scaffner, Carson R. White
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Publication number: 20130009720Abstract: An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.Type: ApplicationFiled: July 6, 2011Publication date: January 10, 2013Applicant: HRL LABORATORIES, LLCInventors: Carson R. White, Joseph S. Colburn, Michael W. Yung, Donald A. Hitko
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Publication number: 20130009722Abstract: An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.Type: ApplicationFiled: May 15, 2012Publication date: January 10, 2013Applicant: HRL LABORATORIES, LLCInventors: Carson R. White, Joseph S. Colburn, Michael W. Yung, Donald A. Hitko
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Publication number: 20130009724Abstract: A method of and circuit for improving stabilization of a non-Foster circuit. The method comprises steps of and the circuit includes means for measuring a noise hump power at an antenna port or an output port of the non-Foster circuit, comparing the measured noise hump power with a desired level of noise power that corresponds to a desired operating state of the non-Foster circuit, and tuning the non-Foster circuit to generate the desired level of noise power to achieve the desired operating state of the non-Foster circuit.Type: ApplicationFiled: July 5, 2012Publication date: January 10, 2013Applicant: HRL Laboratories, LLCInventors: Zhiwei Xu, Michael W. Yung, Donald A. Hitko, Carson R. White
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Patent number: 8350638Abstract: A connector assembly includes, but is not limited to, a body having a top side and a bottom side. A bottom signal plate is connected to the bottom side and is configured for capacitive coupling to a conductor of a coplanar waveguide. A bottom grounding plate is connected to the bottom side and is spaced apart from the bottom signal plate. The bottom grounding plate is configured for capacitive coupling to a grounding plane of the coplanar waveguide. A first electrically conductive pathway is electrically connected to the bottom signal plate and extends to the top side. A second electrically conductive pathway is electrically connected to the bottom grounding plate and extends to the top side. A dielectric adhesive at least partially covers a bottom portion of the connector assembly.Type: GrantFiled: November 20, 2009Date of Patent: January 8, 2013Assignee: General Motors LLCInventors: Carson R. White, Hyok Jae Song, Hui Pin Hsu, Eray Yasan
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Publication number: 20120256811Abstract: A tunable impedance surface, the tunable surface including a plurality of elements disposed in a two dimensional array; and an arrangement of variable negative reactance circuits for controllably varying negative reactance between at least selected ones of adjacent elements in the aforementioned two dimensional array.Type: ApplicationFiled: April 6, 2012Publication date: October 11, 2012Applicant: HRL LABORATORIES, LLCInventors: Joseph S. Colburn, Carson R. White, Daniel J. Gregoire
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Publication number: 20120256709Abstract: A differential circuit topology that produces a tunable floating negative inductance, negative capacitance, negative resistance/conductance, or a combination of the three. These circuits are commonly referred to as “non-Foster circuits.” The disclosed embodiments of the circuits comprises two differential pairs of transistors that are cross-coupled, a load immittance, multiple current sources, two Common-Mode FeedBack (CMFB) networks, at least one tunable (variable) resistance, and two terminals across which the desired immittance is present. The disclosed embodiments of the circuits may be configured as either a Negative Impedance Inverter (NII) or a Negative Impedance Converter (NIC) and as either Open-Circuit-Stable (OCS) and Short-Circuit-Stable (SCS).Type: ApplicationFiled: April 6, 2012Publication date: October 11, 2012Applicant: HRL LABORATORIES, LLCInventors: Donald A. Hitko, Carson R. White, Michael W. Yung, David S. Matthews, Susan L. Morton, Jason W. May, Joseph S. Colburn
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Publication number: 20120218154Abstract: The described method and system provide an antenna feed for a slot antenna that may be patterned into a solar-reflective glazing layer with a virtual ground that is a short electrical distance from the antenna. One implementation of the present invention provides an antenna feed for a slot antenna patterned into the solar-reflective glazing used in a vehicle windshield. Because the antenna feed may incorporate a virtual ground that is a short electrical distance from the slot antenna, antenna performance may be improved over conventional on-glass vehicle antenna systems which use the vehicle chassis as a ground. Furthermore, patterning the slot antenna into the solar-reflective glazing layer and using a virtual ground in the antenna feed provides flexibility in antenna placement.Type: ApplicationFiled: February 25, 2011Publication date: August 30, 2012Applicant: General Motors LLCInventors: Carson R. White, Hyok Jae Song, Eray Yasan
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Publication number: 20120127050Abstract: An antenna includes a CPW transmission line and a radiating portion. The radiating portion is coupled to the CPW transmission line and is substantially coplanar with the CPW transmission line. The radiating portion is configured to produce a first linear polarization at a first frequency, a circular polarization at a second frequency, and a second linear polarization at a third frequency. The radiating portion includes a conductive material extending from the CPW transmission line and forming a plurality of openings in the radiating portion. The openings are asymmetric with respect to a first region of the radiating portion that is disposed on a first side of the CPW transmission line and a second region of the radiating portion that is disposed on a second side of the CPW transmission line.Type: ApplicationFiled: November 23, 2010Publication date: May 24, 2012Applicants: GENERAL MOTORS LLC, GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: HYOK JAE SONG, CARSON R. WHITE, JAMES H. SCHAFFNER, ARTHUR BEKARYAN, ERAY YASAN
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Publication number: 20120068896Abstract: A microwave antenna assembly includes a first dielectric layer, a second dielectric layer, a conductive layer, a first conductive patch, and a second conductive patch. The conductive layer is disposed in an inner region between the first dielectric layer and the second dielectric layer. The conductive layer includes a slot. A first conductive patch is surrounded by the slot. The second conductive patch is disposed against the second dielectric layer outside the inner region, and is electromagnetically coupled to the first conductive patch.Type: ApplicationFiled: September 20, 2010Publication date: March 22, 2012Applicants: GENERAL MOTORS LLC, GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: CARSON R. WHITE, HYOK JAE SONG, ERAY YASAN
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Publication number: 20120068897Abstract: Antenna systems and antenna filters are provided, for example for use in a windshield or on a roof of a vehicle. An antenna system comprises a first antenna, a second antenna, and a filter. The first antenna is configured to operate at a first frequency. The second antenna is configured to operate at a second frequency. The filter is coupled to the first antenna. The filter is configured to create an open circuit condition at the second frequency and reduce secondary radiation between the first and second antennas.Type: ApplicationFiled: September 20, 2010Publication date: March 22, 2012Applicants: GENERAL MOTORS LLC, GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: HYOK JAE SONG, CARSON R. WHITE, YOON YEONG, ERAY YASAN
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CONNECTOR ASSEMBLY AND METHOD OF ASSEMBLING A CONNECTOR ARRANGEMENT UTILIZING THE CONNECTOR ASSEMBLY
Publication number: 20110121924Abstract: A connector assembly includes, but is not limited to, a body having a top side and a bottom side. A bottom signal plate is connected to the bottom side and is configured for capacitive coupling to a conductor of a coplanar waveguide. A bottom grounding plate is connected to the bottom side and is spaced apart from the bottom signal plate. The bottom grounding plate is configured for capacitive coupling to a grounding plane of the coplanar waveguide. A first electrically conductive pathway is electrically connected to the bottom signal plate and extends to the top side. A second electrically conductive pathway is electrically connected to the bottom grounding plate and extends to the top side. A dielectric adhesive at least partially covers a bottom portion of the connector assembly.Type: ApplicationFiled: November 20, 2009Publication date: May 26, 2011Applicant: GENERAL MOTORS LLCInventors: CARSON R. WHITE, HYOK JAE SONG, HUI PIN HSU, ERAY YASAN