Patents Examined by Chuc Tran
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Patent number: 8054233Abstract: According to the invention, a system for positioning an antenna is disclosed. The system may include an antenna, a first substantially circular track, a base, and a first plurality of rollers. The first substantially circular track may be coupled with the antenna. Each of the first plurality of rollers may be coupled with the base. Each of the first plurality of rollers may be in contact with the first substantially circular track. Each of the first plurality of rollers may rotate when the first substantially circular track rotates.Type: GrantFiled: September 5, 2008Date of Patent: November 8, 2011Assignee: ViaSat, Inc.Inventors: Wayne Holt, E. Mitchell Blalock, Christopher E. Griffin
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Patent number: 8044860Abstract: A mobile device includes a ground plane, a conductive housing disposed on the ground plane including a sidewall, a first conductive strip spaced apart from the conductive housing, and a second conductive strip electrically connecting the first conductive strip to the conductive housing.Type: GrantFiled: April 13, 2006Date of Patent: October 25, 2011Assignees: Industrial Technology Research Institute, National Sun Yatsen UniversityInventors: Chia-Lun Tang, Kin-Lu Wong, Saou-wen Su
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Patent number: 8009113Abstract: The system contains an antenna feed. A signal is in communication with the antenna feed. The signal has a wavelength and a period. A signal lens has a periphery portion that is thicker than an interior portion, wherein the signal propagates through the signal lens. The signal lens is designed such that the signal propagates through the periphery portion of the signal lens approximately one wavelength slower than through the interior portion of the signal lens.Type: GrantFiled: January 25, 2007Date of Patent: August 30, 2011Assignee: Cushcraft CorporationInventor: John Sanford
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Patent number: 7675473Abstract: Contamination at the exciter of a parabolic antenna can lead to impaired signal quality, or even system downtime. A parabolic antenna is described which in addition to a parabolic reflector and an exciter has a rinsing device, which is configured so as to rinse and clean the exciter with rinsing agent or protect it from contaminants. Herein, the rinsing agent is injected, dropped, or else blown from a rinsing outlet in an outlet member at the parabolic reflector onto the exciter. Mounting the rinsing outlet directly to the parabolic reflector allows for the exciter to be cleaned from the parabolic reflector.Type: GrantFiled: October 12, 2006Date of Patent: March 9, 2010Assignee: Vega Grieshaber KGInventors: Klaus Kienzle, Fritz Lenk
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Patent number: 7671803Abstract: A wireless communication system comprising a radio module. The radio module comprises a radio transceiver and an antenna electrically coupled to the radio transceiver. The radio module may also comprise an electromagnetic shield disposed relative to the antenna to enable the antenna to transmit a radio signal to a location external to the electrical device without electromagnetic interference from within the electrical device.Type: GrantFiled: July 25, 2003Date of Patent: March 2, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Timothy Neill, Robin Castell
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Patent number: 7626557Abstract: The invention comprises a Digital UHF/VHF (DUV) Antenna with a driven DUV antenna preferably boosted by an amplifier mounted close to the DUV dipole and a DUV signal line with antenna, amplifier, and signal line contacts being conductively bonded. The DUV dipole is preferably enhanced by a VHF enhancer and/or by a UHF enhancer comprising one of a reflective and a directive element. The UHF/VHF enhancer preferably includes an RF booster with a reflective element displaced from the longitudinal axis and near the driven antenna to enhance VHF signals. The DUV antenna is preferably configured for DTV reception in the VHF high band range of 174 MHz to 216 MHz, and in the UHF range of 470 MHz to 698 MHz.Type: GrantFiled: March 31, 2007Date of Patent: December 1, 2009Inventors: Bradley Lee Eckwielen, David LeRoy Hagen
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Patent number: 7623071Abstract: An integrated sub-millimeter and infrared reflectarray includes a reflective surface, a dielectric layer disposed on the reflective surface, and a subwavelength element array and a subwavelength element array electromagnetically coupled to the reflective surface. The subwavelength element array includes (i) electrically conductive subwavelength elements on the dielectric layer, (ii) wherein the dielectric layer comprises a plurality of dielectric subwavelength elements, or (iii) the dielectric layer includes a plurality of embedded dielectric subwavelength elements. The array includes at least one of a plurality of substantially different inter-element spacings and a plurality of substantially different dimensions for the elements.Type: GrantFiled: December 11, 2006Date of Patent: November 24, 2009Assignee: University of Central Florida Research Foundation, Inc.Inventors: James Ginn, Brian Lail, Glenn Boreman
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Patent number: 7619581Abstract: Reflections on the aerial system of a fill level radar result in reduced measuring quality at short range. Small echo signals at short range can thus disappear in the noise. According to one embodiment of the present invention a parabolic aerial for a fill level radar is stated, which parabolic aerial comprises a parabolic mirror, an exciter and a diffusion disc. The diffusion disc is used for laterally removing interfering electromagnetic waves that would otherwise be absorbed by the exciter. In this way the decay behaviour at short range can be reduced.Type: GrantFiled: October 12, 2006Date of Patent: November 17, 2009Assignee: Vega Grieshaber KGInventors: Klaus Kienzle, Fritz Lenk, Josef Fehrenbach
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Patent number: 7609001Abstract: An electromagnetic radiation source is disclosed that produces a single mode operation at a desired operating frequency. The electromagnetic radiation source is included in a wide variety of applications including a wireless power transmission system, a system for providing wireless/high-bandwidth communications in accordance with the present invention, a lighting system, an irradiation system, a weapons system, etc.Type: GrantFiled: December 6, 2006Date of Patent: October 27, 2009Assignee: Raytheon CompanyInventor: James G. Small
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Patent number: 7583238Abstract: The present invention provides a radome for an endfire antenna array that includes a honeycomb core, an inner skin attached to the honeycomb core, a first set of conductive slats disposed on the inner skin of the honeycomb core and a second set of conductive slats that are disposed within the honeycomb core. The two sets of conductive slats are capacitively-coupled to one another.Type: GrantFiled: January 19, 2007Date of Patent: September 1, 2009Assignee: Northrop Grumman Systems CorporationInventors: John Cassen, Timothy G. Waterman
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Patent number: 7579995Abstract: An antenna system is provided. The antenna system comprises a first antenna with a first operating frequency and a second antenna with a second operating frequency. The second antenna has a first near field with a first near region in which the first antenna is disposed and a second near region. The second antenna has a first gain in the first near region which is lower than a second gain in the second near region. The first gain and the second gain are both at a same one of the first operating frequency and the second operating frequency.Type: GrantFiled: July 30, 2007Date of Patent: August 25, 2009Assignee: Lockheed Martin CorporationInventors: Wilhelmus H. Theunissen, Anthony W. Jacomb-Hood
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Patent number: 7570225Abstract: An RFID antenna that can be disposed in a space-saving manner. The RFID antenna comprises an outermost peripheral conductive line that is bent in a manner extending along sides of a generally rectangular shape having a predetermined size, and a power-feeding conductive line that is disposed close to an inner periphery of the outermost peripheral conductive line in a manner extending parallel therewith, and is electrically connected to the outermost peripheral conductive line at ends thereof, the power-feeding conductive line including a portion thereof formed with a feeder part. Therefore, the antenna fits into a rectangle having a predetermined size, such as a card size.Type: GrantFiled: April 26, 2007Date of Patent: August 4, 2009Assignee: Fujitsu LimitedInventors: Manabu Kai, Toru Maniwa, Takashi Yamagajo
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Patent number: 7557759Abstract: An integrated multi-band antenna has a first radiating conductor, a second radiating conductor spaced from the first radiating conductor, a trap element connected to the first and second radiating conductors, a third radiating conductor with a first feeding point connected to the first radiating conductor, a fourth radiating conductor connected to the second and third radiating conductors, a meandering radiating conductor having two ends which respectively connect a fifth radiating conductor with a second radiating conductor and a sixth radiating conductor parallel to the meandering radiating conductor and a ground portion arranged close to the first radiating conductor and spaced from the fifth radiating conductor. The second, third and fourth radiating conductors resonate at a first frequency bandwidth. The first, second and third radiating conductor and the trap element resonate a second frequency bandwidth.Type: GrantFiled: July 2, 2007Date of Patent: July 7, 2009Assignee: Cheng Uei Precision Industry Co., Ltd.Inventors: Ching-Chi Lin, Hung-Jen Chen, Kai Shih, Yu-Yuan Wu, Jia-Hung Su
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Patent number: 7541744Abstract: The invention relates to an electronic ballast and to an operating method for high-pressure discharge lamps. During a current measurement, in particular for current regulation, only switching phases of a specific polarity of the current are taken into consideration.Type: GrantFiled: February 3, 2006Date of Patent: June 2, 2009Assignee: Osram Gesellschaft mit Beschraenkter HaftungInventors: Alois Braun, Walter Limmer, Joachim Mühlschlegel, Markus Ziegler
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Patent number: 7541990Abstract: A rotational antenna is disclosed. The rotational antenna includes a radiating member and a pivot. The radiating member preferably comprises a curved portion. The pivot further includes an axle and a body. The axle is coupled to the curved portion, and the body is electrically connected to a wireless communication device. Accordingly, the pivot is disposed within the wireless communication device and hidden inside the wireless communication device. The damage of the pivot can be avoided when moving the wireless communication device.Type: GrantFiled: June 27, 2007Date of Patent: June 2, 2009Assignee: Wistron Corp.Inventor: Yung-Yu Kuo
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Patent number: 7538741Abstract: A Radio Frequency (RF) structure services an antenna having a characteristic impedance and includes a differential Power Amplifier (PA), a differential Low Noise Amplifier (LNA), and a balun transformer. The differential PA has a differential PA output with a PA differential output impedance. The differential LNA has a differential LNA input with an LNA differential input impedance. The balun transformer has a singled ended winding coupled to the antenna, a differential winding having a first pair of tap connections coupled to the differential PA output and a second pair of tap connections coupled to the differential LNA input, and a turns ratio of the single ended winding and the differential winding. The turns ratio and the first pair of tap connections impedance match the PA differential output impedance to the characteristic impedance of the antenna. The turns ratio and the second pair of tap connections impedance match the LNA differential input impedance to the characteristic impedance of the antenna.Type: GrantFiled: January 2, 2008Date of Patent: May 26, 2009Assignee: Broadcom CorporationInventors: Jesus Alfonso Castaneda, Ahmadreza (Reza) Rofougaran, Keith A. Carter
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Patent number: 7530953Abstract: An electrical connector is described. In one implementation, the connector includes a female portion including one or more electrical contacts and a male portion including one or more electrical contacts. The female portion and the male portion each have a self-orientating geometry that allows the male portion to be mated with the female portion in any rotational position along 360 degrees of rotation. When mated, the electrical contacts of the female portion mate with corresponding one or more electrical contacts of the male portion to form one or more electrical connections between two electronic components.Type: GrantFiled: January 31, 2007Date of Patent: May 12, 2009Assignee: Boston Scientific Neuromodulation CorporationInventors: E. Scott Harshman, Donald Masters, Peter Thornton
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Patent number: 7528788Abstract: A high impedance surface (300) has a printed circuit board (302) with a first surface (314) and a second surface (316), and a continuous electrically conductive plate (319) disposed on the second surface (316) of the printed circuit board (302). A plurality of electrically conductive plates (318) is disposed on the first surface (314) of the printed circuit board (302), while a plurality of elements are also provided. Each element comprises at least one of (1) at least one multi-layer inductor (330, 331) electrically coupled between at least two of the electrically conductive plates (318) and embedded within the printed circuit board (302), and (2) at least one capacitor (320) electrically coupled between at least two of the electrically conductive plates (318).Type: GrantFiled: July 17, 2008Date of Patent: May 5, 2009Assignee: Motorola, Inc.Inventors: Gregory J. Dunn, Robert T. Croswell, George H. Kumpf, John A. Svigelj
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Patent number: 7522109Abstract: Information equipment according to an embodiment includes a display housing with a display unit, a first radio communication antenna disposed at an end part of the display housing, a second radio communication antenna using a frequency band adjacent to or overlapped with that of the first radio communication antenna, and a third radio communication antenna disposed at an end part between the first and the second radio communication antennas, and uses a frequency band not adjacent to nor overlapped with those of the first and the second radio communication antennas.Type: GrantFiled: May 21, 2007Date of Patent: April 21, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Shimasaki, Masao Teshima, Satoshi Mizoguchi, Anwar Sathath, Toshiyuki Hirota
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Patent number: 7518569Abstract: A stabilizing mechanism and method for a deployed reflector antenna in a mobile satellite system. The stabilizing mechanism has a pair of stabilizing devices with a first end of each stabilizing device connected on a rear support of the reflector antenna. The first ends are positioned on opposite sides of the rear support. A second end of each stabilizing device is connected to a tilt mechanism in the mobile satellite system. The pair of stabilizing devices forms a support angle about the centerline of the reflector antenna and with the tilt mechanism. The pair of stabilizer devices pushes against the opposite sides with a pre-load force when the reflector antenna is deployed to minimize deflection of the reflector antenna due to environmental forces.Type: GrantFiled: September 28, 2007Date of Patent: April 14, 2009Assignee: Winegard CompanyInventor: Timothy John Conrad