Patents Examined by Robert Pascal
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Patent number: 9136912Abstract: A non-contacting rotary interface has a first core with a first pair of balanced transmission lines coupled to the first core and a second core moveable in relation to the first core with a second pair of balanced transmission lines coupled to the second core and configured to receive signals from the first pair of balanced transmission lines. The first pair of balanced transmission lines has a first transmit wire coupled to a termination point at a first end of the first transmit wire, a first transmitter coupled to the first transmit wire at a second end of the first transmit wire, a second transmit wire coupled to the termination point at a first end of the second transmit wire, and a second transmitter coupled to the second transmit wire at a second end of the second transmit wire. The balanced transmission lines may be electrical traces on a circuit board.Type: GrantFiled: March 19, 2012Date of Patent: September 15, 2015Assignee: Voxis, Inc.Inventors: Joseph Newhall West, Jon Robert Kiser, Jerry Samuel Dimsdale
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Patent number: 9136577Abstract: An orthomode transducer (OMT) operable in a broadband (e.g. >30%), including a frequency above ˜30 GHz, with an isolation better than ?50 dB, cross-polarizations better than ?40 dB, an insertion loss between ?0.1 and ?0.3 dB for both polarizations, and return losses better than ?25 dB can be produced substantially or entirely from CNC machining, comprises a turnstile for coupling a polarization diplexed waveguide with four waveguide paths; and two E-plane Y junctions each for coupling initially oppositely directed pairs of the waveguide paths such that each waveguide path has a same electrical length from the turnstile to the E-plane Y junctions as the waveguide path with which it is paired, such that the OMT is formed in 3-6 blocks, including a single block having a substantially planar mating surface that includes the matching feature, and defines one side of initial segments of the four waveguide paths. Reproducibility of these OMTs has been shown.Type: GrantFiled: June 8, 2010Date of Patent: September 15, 2015Assignee: National Research Council of CanadaInventors: David Dousset, Stephane Claude
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Patent number: 9130536Abstract: This application relates to systems and methods for splitting a current signal into at least two signals that are out of phase with each other. The power splitter may include a conductive element that may generate standing magnetic field that alternates at specified frequency. An inductor placed near or in the magnetic field may induce an alternating current at the specified frequency. Each end of the inductor may be coupled to a connector that may be coupled to an antenna that may be incorporated into a plasma processing chamber.Type: GrantFiled: July 23, 2013Date of Patent: September 8, 2015Assignee: TOKYO ELECTRON LIMITEDInventor: Barton Lane
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Patent number: 9130650Abstract: This disclosure provides methods and apparatus for processing differential signals having non-inverted and inverted signals. An example apparatus has first and second circuit arms, each arm connected to receive one of the input signals. Each arm has a post-cursor branch comprising a delay, an inverter and a series terminating resistance connected between the first input and a first circuit arm common node, and a main cursor branch comprising a buffer and a series terminating resistance connected between the first input and the first circuit arm common node. A first transformer has a primary winding connected between the first circuit arm common node and a first output and a secondary winding connected between an output of the buffer of the main cursor branch of the second arm and ground, with a capacitor and a resistor connected in series between the secondary winding and ground.Type: GrantFiled: October 31, 2013Date of Patent: September 8, 2015Assignee: PMC-SIERRA US, INC.Inventor: Predrag Acimovic
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Patent number: 9124217Abstract: A power amplifier comprising a plurality of primary amplifying channels arranged to each receive an input signal from one or more signal sources for generating a primary amplified output in each of the plurality of primary amplifying channels, a secondary amplifying channel in communication with the one or more signal sources wherein the secondary amplifying channel is arranged to receive one or more signal components each associated with the input signal received by each of the plurality of primary amplifying channels to form a merged input signal for generating a secondary amplified output, and an electric junction arrangement being in electrical communication with the primary amplified output of each of the primary amplifying channels and the secondary amplified output of the secondary amplifying channel.Type: GrantFiled: May 15, 2013Date of Patent: September 1, 2015Assignee: City University of Hong KongInventors: Quan Xue, Shichang Chen
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Patent number: 9123473Abstract: The present disclosure discloses a structural capacitor, a connector comprising the structural capacitor and a communication apparatus using the connector. The structural capacitor comprises a rod and a holder. The rod comprises a first section and a second section connected with the first section, and the holder comprises a through hole. The first section and the second section are fitted into the through hole to accomplish the connection between the first section and the second section in an axial direction. The connector of the present disclosure features a simple structure, a convenient manufacturing process and a low cost. The communication apparatus of the present disclosure has advantages such as a simple manufacturing process, parameters that can be easily guaranteed, a low processing cost and a stable product performance.Type: GrantFiled: September 11, 2012Date of Patent: September 1, 2015Assignee: SHENZHEN TATFOOK TECHNOLOGY CO., LTD.Inventor: Wenjing Wu
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Patent number: 9123983Abstract: A tunable bandpass filter integrated circuit includes a filter core including at least two spaced conductor layers, a plurality of peripherally spaced backside vias extending between the conductor layers defining a resonator cavity, at least one internal backside via, and a tunable impedance connected in series with the internal backside via between the conductor layers for adjusting the resonance of the cavity.Type: GrantFiled: July 20, 2012Date of Patent: September 1, 2015Assignee: Hittite Microwave CorporationInventor: Ekrem Oran
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Patent number: 9112402Abstract: There is provided a power conversion apparatus which allows a noise current or voltage to be suppressed at a low cost and in a small size, the noise current or voltage mixing into the power conversion apparatus by propagating through a control wiring connected to an external appliance. The power conversion apparatus includes a housing, connection terminals provided on the housing, a control-circuit unit provided inside the housing, a wiring for establishing the connection between the connection terminals and the control-circuit unit, a first noise-removing unit connected between the wiring and the ground potential of the housing, and a second noise-removing unit connected between the wiring and the ground potential of the housing, and also in parallel to the first noise-removing unit.Type: GrantFiled: December 15, 2010Date of Patent: August 18, 2015Assignee: Hitachi Automotive Systems, Ltd.Inventors: Masayoshi Takahashi, Keisuke Fukumasu, Makoto Torigoe, Tomohiko Suematsu, Satoru Shigeta
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Patent number: 9112475Abstract: An EBG (Electromagnetic Band Gap) structure according to an embodiment includes: an electrode that is made of a first conductor; a first insulating layer that is provided on the electrode; a patch unit that is provided in substantially parallel with the electrode on the first insulating layer, the patch unit including a first gap, the patch unit being made of a second conductor; a second insulating layer that is provided on the patch unit; a first via that is provided between the patch unit in the first insulating layer and the electrode and connected to the patch unit and the electrode; and a second via that is provided in the first and second insulating layers, the second via piercing the first gap and being connected to the electrode.Type: GrantFiled: July 26, 2013Date of Patent: August 18, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tadahiro Sasaki, Kazuhiko Itaya, Hiroshi Yamada
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Patent number: 9112320Abstract: Communications connectors include a plurality of input contacts that are arranged as differential pairs of input contacts, a plurality of first output contacts that are electrically connected to respective ones of the plurality of input contacts, and a first pair of second output contacts that are electrically connected by a pair of conductive paths to one of the differential pairs of input contacts. The first output contacts are configured to physically contact respective ones of a plurality of first contacts of a second communications connector. Moreover, each contact of the first pair of second output contacts is electrically in parallel to a respective one of the first output contacts when the communications connector is mated with the second communications connector.Type: GrantFiled: January 10, 2013Date of Patent: August 18, 2015Assignee: CommScope, Inc. of North CarolinaInventors: Amid Hashim, Carl Todd Herman, Scott L. Michaelis, Richard A. Schumacher, David L. Heckmann, Hongwei Liang, Wayne D. Larsen
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Patent number: 9105952Abstract: A waveguide-configuration adapter is provided. The waveguide-configuration adapter includes a horizontal waveguide and a vertical waveguide. The horizontal waveguide includes a first-interface port spanning a first X-Y plane and a first-coupling port spanning a Y-Z plane with a first-coupling-port width parallel to the y axis. The vertical waveguide includes a second-interface port spanning a second X-Y plane and a second-coupling port spanning a third X-Y plane with a second-coupling-port width parallel to the x axis. When an E-field is input at the first/second coupling port in the plane of the first/second coupling port, respectively, and oriented perpendicular to the first/second coupling-port width, respectively, the E-field is output from the second/first coupling port, respectively, in the plane of second/first coupling port, respectively, and oriented perpendicular to the second/first coupling-port width, respectively.Type: GrantFiled: October 17, 2012Date of Patent: August 11, 2015Assignee: Honeywell International Inc.Inventors: John C. Hoover, Shawn David Rogers, John L. Beafore
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Patent number: 9107300Abstract: A resonant via structure is provided with a multilayer substrate, a signal via conductor and ground vias. The multilayer substrate includes conductor layers and a dielectric. The dielectric isolates each of the conductor layers. The signal via conductor is disposed through the multilayer substrate. The ground vias are disposed through the multilayer substrate and around the signal via conductor. The dielectric comprises two sections disposed between the signal via and ground vias, in the plane of conductor layers. The first section is disposed between the first layer and other layer of the conductor layers. The second section is disposed between the other layer and the last layer of the conductor layers.Type: GrantFiled: December 14, 2009Date of Patent: August 11, 2015Assignee: NEC CORPORATIONInventor: Taras Kushta
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Patent number: 9106187Abstract: A radio frequency (RF) power transistor circuit includes a power transistor and a decoupling circuit. The power transistor has a control electrode coupled to an input terminal for receiving an RF input signal, a first current electrode for providing an RF output signal at an output terminal, and a second current electrode coupled to a voltage reference. The decoupling circuit includes a first inductive element, a first resistor, and a first capacitor coupled together in series between the control electrode of the power transistor and the voltage reference. The decoupling circuit is for dampening a resonance at a frequency lower than an RF frequency.Type: GrantFiled: February 20, 2014Date of Patent: August 11, 2015Assignee: Freescale Semiconductor, Inc.Inventors: Hussain H. Ladhani, Gerard J. Bouisse, Jeffrey K. Jones
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Patent number: 9106184Abstract: There are provided a high-frequency amplifier and a high-frequency module having a high efficiency for an extensive input modulated signal power, and base station/mobile wireless machines using the amplifier or the module. The high-frequency amplifier includes a circuit that detects an envelope of an input modulated signal; a control signal generator circuit (a voltage controlled circuit or a current controlled circuit) that can change a voltage or a current according to a given function on the basis of a magnitude of the detected envelope signal; and a diode clamped variable power circuit that connects a plurality of diode clamped circuits each including a diode, a transistor, and a DC power supply to one another.Type: GrantFiled: August 31, 2011Date of Patent: August 11, 2015Assignee: Hitachi, Ltd.Inventor: Masami Ohnishi
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Patent number: 9106179Abstract: Apparatus are provided for voltage-controlled oscillators and related systems. An exemplary voltage-controlled oscillator includes an active-circuit arrangement that facilitates generation of an oscillating signal, and a resonator arrangement capacitively coupled to the active-circuit arrangement to influence an oscillation frequency of the oscillating signal based on a difference between a first control voltage and a second control voltage.Type: GrantFiled: March 18, 2011Date of Patent: August 11, 2015Assignee: FREESCALE SEMICONDUCTOR INC.Inventors: Vishal P. Trivedi, Kun-Hin To
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Patent number: 9106214Abstract: A PCM signal is converted to a PWM signal using predistortion to alleviate harmonics. A PCM predistorted signal is converted to the PWM and amplified. A third harmonic nonlinear function receives the PCM signal and produces a third harmonic of the PCM signal. A third harmonic difference function takes one sixth of the third harmonic and produces a third harmonic PCM compensation signal. The PCM signal and the third harmonic PCM compensation signal are summed to produce a PCM predistorted signal for a full-bridge amplifier. A second harmonic nonlinear function produces a second harmonic of the PCM signal. A second harmonic function takes one fourth of the second harmonic to produce a second harmonic PCM compensation signal. The PCM signal, the third harmonic PCM compensation signal, and the second harmonic PCM compensation signal are summed to produce the PCM predistorted signal for a half-bridge amplifier.Type: GrantFiled: July 5, 2013Date of Patent: August 11, 2015Assignee: ADX Research, Inc.Inventor: Pallab Midya
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Patent number: 9099234Abstract: The present invention discloses a filter for removing noise, which includes: a lower magnetic body; an insulating layer provided on the lower magnetic body and including at least one conductor pattern; and an upper magnetic body including a primary ferrite composite provided on the insulating layer and a secondary ferrite composite provided on the primary ferrite composite to cover a pore formed on a surface of the primary ferrite composite, and a method of manufacturing the same. According to the present invention, it is possible to implement a filter for removing noise with high performance and characteristics by increasing magnetic permeability and improving impedance characteristics through simple structure and process.Type: GrantFiled: March 22, 2012Date of Patent: August 4, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Moon Lee, Sung Kwon Wi, Jeong Bok Kwak, Won Chul Sim, Young Seuck Yoo, Yong Suk Kim
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Patent number: 9099957Abstract: Apparatus are provided for voltage-controlled oscillators (VCOs) and related systems. An exemplary VCO includes an active-circuit arrangement employing cross-coupled amplifying elements that facilitate generation of an oscillating signal, plus a resonator arrangement capacitively coupled via resonator terminals to primary terminals of the active-circuit arrangement, to influence an oscillation frequency of the oscillating signal based on a difference between control voltages applied to first and second control terminals of the resonator arrangement. When employing bipolar amplifying elements their control terminals are cross-coupled to the opposing resonator terminals. VCO output may be taken from the primary terminals or from the resonator terminals.Type: GrantFiled: May 31, 2012Date of Patent: August 4, 2015Assignee: FREESCALE SEMICONDUCTOR INC.Inventors: Vishal P. Trivedi, Kun-Hin To
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Patent number: 9099976Abstract: Apparatus and methods are disclosed, such as those involving a receiver device. One such apparatus includes an equalizer configured to process an input signal transmitted over a channel. The equalizer can include a programmable gain amplifier (PGA) block which includes an input node configured to receive the input signal; an output node; and a programmable gain amplifier (PGA). The PGA amplifies the input signal with an adjustable gain. The PGA block also includes a gain control block having an input electrically coupled to the input node. The gain control block is configured to adjust the gain of the PGA at least partly in response to the input signal from the input node such that the PGA generates an output signal with a substantially constant amplitude envelope to the output node.Type: GrantFiled: October 7, 2013Date of Patent: August 4, 2015Assignee: Analog Devices, Inc.Inventors: Pablo Acosta-Serafini, Kimo Tam, Stuart McCracken, Daniel Mulcahy
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Patent number: 9099980Abstract: There is described herein a real-time scheme, implementable in software, hardware, or a combination thereof, to detect a resonating frequency of a structure from a sensed signal and dynamically set the center frequency of an adaptive compensator for effective attenuation of the resonating frequency.Type: GrantFiled: May 6, 2013Date of Patent: August 4, 2015Assignee: PRATT & WHITNEY CANADA CORPInventors: Poi Loon Tang, Teuvo Saario, Reza Pedrami