Including Switching Means Patents (Class 333/101)
  • Patent number: 10355355
    Abstract: An antenna system includes an antenna array, a wireless transceiver module and a control module. The antenna array includes a first antenna and a second antenna coupled respectively to the wireless transceiver module. The wireless transceiver module sends and receives signals via the first antenna based on a first phase and sends and receives signals via the second antenna based on a second phase. The control module coupled to the wireless transceiver module, and controls the phase difference between the first phase and the second phase. The radiation pattern of the antenna array is modulated towards one pointing direction based on the phase difference.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: July 16, 2019
    Assignee: PEGATRON CORPORATION
    Inventors: Chien-Yi Wu, Ya-Jyun Li, Chao-Hsu Wu, Hung-Ming Yu, I-Shu Lee
  • Patent number: 10355535
    Abstract: An apparatus is provided that includes a power transmitter, data receiver, and an antenna operatively coupled to the power transmitter and data receiver. The antenna being configured to switchably transmit energy from the power transmitter to power a sensor, and receive data to the data receiver from the sensor in which a frequency being used by the antenna is the same for both transmission of the energy and reception of the data.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: July 16, 2019
    Assignee: Electrolux Home Products, Inc.
    Inventors: Paul Stoufer, Thomas Josefsson
  • Patent number: 10355723
    Abstract: A communication circuit according to one embodiment includes a single element antenna, a plurality of signal-limiting circuits, a high-frequency transceiver circuit, and a low-frequency transceiver circuit. The high-frequency transceiver circuit is adapted to be selectively coupled to the single element antenna via the plurality of signal-limiting circuits and tuned to operate at a high frequency carrier frequency, and the low-frequency transceiver circuit is adapted to be selectively coupled to the single element antenna via the plurality of signal-limiting circuits and tuned to operate at a low frequency carrier frequency.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 16, 2019
    Assignee: Schlage Lock Company LLC
    Inventors: Robert Prostko, Ryan C. Kincaid, Brian A. Telljohann
  • Patent number: 10347623
    Abstract: A switch includes an input terminal and an output terminal. The switch also includes a first stack having transistors coupled in series, and a second stack having transistors coupled in series. The first stack and the second stack are connected in parallel with one another.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: July 9, 2019
    Assignee: Infineon Technologies AG
    Inventor: Winfried Bakalski
  • Patent number: 10348365
    Abstract: The invention relates to a directional coupling communication apparatus where the coupling impedance can be easily matched to reduce reflections, and thus, the speed of communication channels is increased as compared to that with inductive coupling, and at the same time, the reliability of communication is improved by increasing the signal intensity. Modules having a coupler where an input/output connection line is connected to a first end, and either a ground line or an input/output connection line to which an inverse signal of a signal to be inputted into the input/output connection line connected to the above-described first end is inputted is connected are layered on top of each other so that the couplers are couplers to each other using capacitive coupling and inductive coupling.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: July 9, 2019
    Assignee: KEIO UNIVERSITY
    Inventor: Tadahiro Kuroda
  • Patent number: 10341719
    Abstract: A entry adapter configured to allow external signals to be received by the entry adapter and including a first splitter electrically connected to a first port and a second port. The entry adapter includes a frequency band rejection device electrically connected to the first splitter, and configured to allow the external signals to proceed therethrough to a plurality of third ports, and to block the client signals from proceeding therethrough to the first port. The entry adapter also includes a second splitter electrically connected to the frequency band rejection device and the plurality of third ports, and configured to distribute the external signals received from the frequency band rejection device to the plurality of third ports. The external signals do not proceed through the second splitter.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 2, 2019
    Assignee: PPC BROADBAND, INC.
    Inventors: Chad T. Wells, John M. Egan, Jr.
  • Patent number: 10320056
    Abstract: An antenna structure of multi-band frequency and simple structure includes a base plate, a supporting portion and an antenna mounted on the supporting portion. The base plate has a signal source thereon. The antenna has an input end. The antenna includes a first antenna, a second antenna and a connecting portion coupled with the first antenna and the second antenna, the antenna also has a first switch portion, a second switch portion and a third switch portion, the base plate has a first circuit and a second circuit. The input end is mounted on the connecting portion, the first switch portion is mounted between the signal source and the input end, the second switch portion is mounted on the first antenna, and the third switch portion is mounted on the second antenna.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: June 11, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Chao-Wei Ho
  • Patent number: 10310931
    Abstract: Provided are a communications state determination device, etc., capable of improving the accuracy of network state specification. This communications state estimation device comprises: a setting means that, in accordance with given communications parameters, applies the communications parameters to a communications device that determines the occurrence of communications errors in communications with a communications destination device; a detection means that sends communications instructions to the communications device that performs communications, in accordance with received communications instructions, and detects the occurrence of communications errors that have been determined in the communications that are in accordance with the instructions; and an estimation means that estimates whether or not the communications device can perform the communications, on the basis of the communications parameters and the existence or otherwise of communications errors.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: June 4, 2019
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Ueda, Shunichi Kinoshita, Norio Yamagaki, Kazumine Ogura, Norihito Fujita
  • Patent number: 10277492
    Abstract: Downlink signals output from a transmission and reception unit are combined with an interference signal of a CW, a resultant signal is applied to a mobile terminal, throughputs for respective interference signal frequencies for the downlink signals are collectively measured, a signal suppression band of the filter is fitted to a frequency band of the downlink signal determined not to reach a defined value, and re-measurement and re-determination of the throughput for the downlink signal among the collectively measured throughputs are performed. In a case where throughputs collectively measured at a certain interference signal frequency are equal to or greater than the defined value and a case where re-measured throughputs of all the downlink signals are equal to or greater than the defined value, the interference signal frequency is switched to the next interference signal frequency, and collective throughput measurement is performed.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: April 30, 2019
    Assignee: ANRITSU CORPORATION
    Inventors: Ryota Chinbe, Nobutoshi Otonari, Kazunari Kawano, Akira Hatano
  • Patent number: 10256792
    Abstract: A filter module includes filters. Each of the filters is configured to control communications bands having overlapping bandwidths each with the other. Each of the communications bands, allocated to any one of the filters, has a different limit frequency from the other.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 9, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Tae Kim, Hyung Kim, Won Jin Baek, Mu Seon Woo, Jung Woo Sung
  • Patent number: 10254397
    Abstract: An inspection apparatus of an embodiment includes a transmitting antenna device connected to a transmitting unit including a transmitting device configured to transmit a microwave, and a receiving antenna device connected to a receiving unit including a receiving device. Each of the transmitting antenna device and the receiving antenna device faces a subject to be inspected. The receiving antenna device receives at least one of a microwave transmitted from the transmitting antenna device and penetrating the subject to be inspected, a microwave of which phase has been delayed, and a microwave diffracted in the subject to be inspected. The receiving unit is a directional antenna.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 9, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Kayano, Toshiro Hiraoka
  • Patent number: 10230407
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a radio receiver with a hybrid channelizer architecture. In some implementations, a receiver includes an input to receive a first signal encoding digital samples of a radiofrequency signal. The receiver includes a frequency shifter configured to generate a second signal that is frequency shifted relative to the first signal. The receiver includes a first polyphase filter bank configured to receive the first signal and provide filter bank outputs for first sub-bands. The receiver includes a second polyphase filter bank configured to receive the second signal and provide filter bank outputs for second sub-bands. The receiver includes a switch network configured to select among the filter bank outputs and provide the filter bank outputs to respective digital channelizer modules for multiple channels.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: March 12, 2019
    Assignee: Hughes Network Systems, LLC
    Inventor: Hanhui Zhang
  • Patent number: 10224590
    Abstract: Aspects of the subject disclosure may include, for example, a guided wave switch that selectively aligns an end of the first dielectric core of a first conductorless guided wave cable with an end of a selected one of a plurality of second dielectric cores of at least one second conductorless guided wave cable to facilitate coupling of the first guided waves from the first dielectric core to a selected one of the plurality of second dielectric cores. Other embodiments are disclosed.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: March 5, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Donald J. Barnickel, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Paul Shala Henry, Henry Kafka, Thomas M. Willis, III
  • Patent number: 10216683
    Abstract: A multimedia communication apparatus, suitable for a first multimedia apparatus, is adapted to transmit or receive multimedia data and is electrically connectable to a standard connector. The standard connector may be non-reversibly or reversibly connected to a plug of a standard cable, and includes a plurality of the pins. The pins include multiple differential signal pins serving as multiple multimedia channels, a power pin serving as a power line, a first polarity pin, a first data pin and a ground pin. The multimedia communication apparatus includes a control logic and a multimedia signal processor. The multimedia signal processor transmits or receives multimedia data to/from a second multimedia apparatus through the multimedia channels, and further power handshakes or exchanges information with the second multimedia apparatus. The information is for controlling a multiplexer to switch the multimedia channels.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: February 26, 2019
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventor: Chun-Wen Yeh
  • Patent number: 10211529
    Abstract: A phased array antenna system with electrical tilt control incorporates a tilt controller (62) for splitting an input signal into three intermediate signals, two of which are delayed by variable delays T1 and T2 relative to the third. A corporate feed (64) contains splitters S3 to S10 and hybrids H1 to H6 for processing the intermediate signals to produce drive signals for elements of an antenna array (66); the drive signals are fractions and vector combinations of the intermediate signals. The tilt controller (62) and the corporate feed (64) in combination impose relative phasing on the drive signals as appropriate for phased array beam steering in response to variable delay of two intermediate signals relative to the third intermediate signal.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: February 19, 2019
    Assignee: Quintel Technology Limited
    Inventors: Philip Edward Haskell, Louis David Thomas
  • Patent number: 10211829
    Abstract: A semiconductor switch includes a first switching element connected between a first terminal and a second terminal, a second switching element connected between the second terminal and a third terminal, a first resonant circuit having a zero impedance when resonating at a first frequency, a second resonant circuit having a zero impedance when resonating at N times the first frequency, wherein N is an integer greater than 1, and a transmission line having a first point connected to the second terminal, a second point connected to the first resonant circuit, and a third point connected to the second resonant circuit. A length of the transmission line between the first and second points corresponds to one-quarter of a wavelength corresponding to the first frequency, and a length of the transmission line between the first and third points corresponds to one-half of the wavelength corresponding to the first frequency divided by N.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: February 19, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Koji Uejima
  • Patent number: 10198386
    Abstract: This application relates to methods and apparatus for transfer of data between a host device (400) and a peripheral device (300) via a USB Type-C connector (100; 304) of the host device. A data controller is described that has a path controller (309, 310; 706) for establishing signal paths between circuitry of the host device and contacts (101) of said USB Type-C connector. The path controller is operable in at least first and second modes. In the first mode the path controller establishes separate signal paths to each of at least first, second, third and fourth contacts (A6, A7, B6, B7) of the USB Type-C connector and a plurality of the established signal paths are for transfer of analog audio data. In the second mode the path controller establishes a pair of signal paths to only a subset of said first to fourth contacts to provide a differential digital data path.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 5, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Robert David Rand, Graeme Gordon MacKay, Andrew James Howlett
  • Patent number: 10149351
    Abstract: A device for generating an alternating radio-frequency electromagnetic field in a working area includes an applicator emitting the electromagnetic field, an oscillator providing an alternate voltage and electric current having a predetermined value and a predetermined frequency to the applicator, a power supply supplying a substantially DC voltage to the oscillator, and a control system controlling the electrical parameters of the AC voltage, the AC current and/or the frequency provided to the applicator by the oscillator. The control system includes an input port connected to the electric power network, a first electronic control circuit connected to the input port and substantially instantaneously varying the electrical parameters and instantaneous control of the field emission power, and a second electronic control circuit regulating the operation of the oscillator. The first electronic circuit has an output connected to the power supply. A plant includes the device and a control method for the device.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 4, 2018
    Assignee: Officine di Cartigliano SpA
    Inventors: Antonio Polato, Riccardo Marin
  • Patent number: 10063326
    Abstract: An impedance matching network between a transmitter and an antenna. The impedance matching network comprises of a watt meter coupled to the transmitter for measuring a standing wave ratio (“SWR”). A first unbalanced to unbalanced transformer (“first unun”) with an impedance ratio of N:1 is selectively coupled in series with the watt meter. A microprocessor is coupled to the watt meter for determining iteratively whether the first unun lowers the standing wave ratio (“SWR”) in response to switching the first unun in and out of a series connection with the antenna.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 28, 2018
    Assignee: Softronics, Ltd.
    Inventor: Robert H. Sternowski
  • Patent number: 10020682
    Abstract: An electric power transmission device for wirelessly transmitting electric power in a highly conductive medium includes a power transmitting unit configured to wirelessly transmit electric power and a power receiving unit configured to intromit the wireless electric power transmitted from the power transmitting unit. The power transmitting unit and the power receiving unit include an electric power transmission coil and a containment member having a dielectric configured to cover the electric power transmission coil, and transmit the electric power by causing resonance at a frequency determined by impedance of the power transmitting unit, impedance of the power receiving unit, and impedance of the highly conductive medium.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: July 10, 2018
    Assignee: NEC Corporation
    Inventors: Masahiro Tanomura, Shuhei Yoshida, Kaoru Shizuno, Naoki Kobayashi, Hiroshi Fukuda, Yoshinori Hama
  • Patent number: 10009060
    Abstract: The disclosure provides a switchable filtering circuit and the related operation method, in particular related to a filtering circuit which can be used for Bluetooth system and wireless local area network system. By using a first switch, a hybrid filtering circuit and a second switch, the received mode and transmitted mode between these two systems is realized. Moreover, the frequency responses and the bandwidth adjustments can be controlled according to the plurality of switchable resistors, the plurality of switchable capacitors and the shared and switchable resistors within the hybrid filter circuit. Moreover, the effects of high operated freedom of the circuit and the circuit size reduction can be achieved.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: June 26, 2018
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: Kuei-Ju Chiang
  • Patent number: 9998097
    Abstract: A radio-frequency front-end circuit includes a first filter that has a first pass band and is connected to an antenna common terminal, a second filter that has a second pass band and is connected to the antenna common terminal, a switch that includes a common terminal and selection terminals, the common terminal being connected to the first filter, and a third filter that is connected to one of the selection terminals and is disposed between the switch and an input/output terminal. A reflection coefficient of the first filter alone in the second pass band viewed from the antenna common terminal is larger than a reflection coefficient of the third filter alone in the second pass band viewed from the antenna common terminal.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 12, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Morio Takeuchi, Daisuke Miyazaki, Tetsuro Okuda
  • Patent number: 9991065
    Abstract: The disclosure is directed to optimized switching circuitry utilizing MEMS (Microelectromechanical Systems) circuitry in series with solid state circuitry. Specifically, the MEMS circuitry includes a first MEMS circuit in parallel with (and separate from) a second MEMS circuit. A paired signal is defined as a transmit signal and a receive signal (in a single band) that are transmitted or received on separate paths or on separate nodes. The transmit signal is associated with the first MEMS circuit, and the receive signal is associated with the second MEMS circuit. The solid state circuitry switches between the first MEMS circuit and second MEMS circuit without requiring any switching in the first or second MEMS circuits.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 5, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Nadim Khlat, Jonathan Hale Hammond
  • Patent number: 9989600
    Abstract: A feeding circuit arrangement (18) supplies a radio frequency signal to a plurality of coil elements (14) of a magnetic resonance coil system (12). The circuit arrangement (18) includes a main line (20) for connecting a radio frequency signal source (16); a plurality of feeding lines (22), each feeding line (22) for connecting a corresponding coil element (14) of the coil system (14); a power divider (24) arranged between the main line (20) and the plurality of feeding lines (22) for distributing the signal on the main line (20) to each of the feeding lines (22). At least one of the feeding lines (22) includes a controllable switching circuit (26) with a switching element (28) for connecting/disconnecting of two resulting line sections (30, 32) of the feeding line (22), a first line section (30) on the divider side and a second line section (32) on the side connectable to the coil element (14).
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: June 5, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Oliver Lips, Christoph Leussler
  • Patent number: 9966926
    Abstract: A technique relates to a lossless microwave switch discussed herein. Multiple ports are included in the lossless microwave switch. Tunable filters are included in the lossless microwave switch. Each of the ports is operatively coupled a corresponding one of the tunable filters.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: May 8, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Baleegh Abdo
  • Patent number: 9966927
    Abstract: RF filtering circuitry includes a common node, a first input/output node, a second/input output node, a first filter coupled between the common node, the first input/output node, and the second input/output node, and a second filter coupled between the common node, the first input/output node, and the second input/output node. The first filter is configured to provide a first bandpass filter response between the common node and the first input/output node, where the first bandpass filter response is configured to pass RF signals within a first subset of the first frequency band while attenuating other signals. Further, the first filter is configured to provide a bandstop filter response between the common node and the second input/output node, where the bandstop filter response is configured to attenuate RF signals within the first subset of the first frequency band while passing other signals.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 8, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Nadim Khlat, Marcus Granger-Jones, Robert Aigner
  • Patent number: 9941923
    Abstract: The disclosure relates to transceivers incorporating a transmit-receive switching circuit, embodiments of which include a radio transceiver circuit comprising: a first amplifier for amplifying signals received from an antenna via an antenna connection; a second amplifier for amplifying signals to be transmitted by the antenna via the antenna connection; and a switching circuit connected between an input of the first amplifier and the antenna connection, the switching circuit comprising a capacitor, a switching element and an impedance matching element, wherein the switching element is configured to connect a node between the capacitor and the impedance matching element to a signal ground when the transceiver is in a transmit mode.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 10, 2018
    Assignee: Cantena Holding B.V.
    Inventors: Omid Esmaeilzadeh Najari, Mats Lennart Carlsson
  • Patent number: 9941587
    Abstract: The present invention relates to a 3×3 Butler matrix, comprising a first directional coupler, a second directional coupler, a third directional coupler, a first fixed phase shifter, a second fixed phase shifter and a third fixed phase shifter; and also relates to a 5×6 Butler matrix, comprising a first 3×3 Butler matrix, a second 3×3 Butler matrix, a fourth directional coupler, a fifth directional coupler, a power divider, a fourth fixed phase shifter and a fifth fixed phase shifter. The 3×3 Butler matrix and the 5×6 Butler matrix provided in the present invention have the features of small size, wide frequency band, low loss, high isolation and stable performance, fill the blank of specific technical schemes about the 3×3 Butler matrix and the 5×6 Butler matrix in the prior art, and have broad application prospects and great value.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: April 10, 2018
    Assignee: GUANGDONG BROADRADIO COMMUNICATION TECHNOLOGY CO., LTD.
    Inventor: Biqun Wu
  • Patent number: 9941584
    Abstract: A reconfigurable radio frequency aperture including a substrate, a plurality of reconfigurable patches on the substrate, and a plurality of reconfigurable coupling elements on the substrate, wherein at least one reconfigurable coupling element is coupled between a reconfigurable patch and another reconfigurable patch, and wherein the reconfigurable coupling elements affect the mutual coupling between reconfigurable patches.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: April 10, 2018
    Assignee: HRL Laboratories, LLC
    Inventors: Keerti S. Kona, James H. Schaffner, Hyok J. Song
  • Patent number: 9912317
    Abstract: A switching circuit is provided. The switching circuit includes at least one Surface Acoustic Wave (SAW) filter, a Single-Pole n Throw (SPnT) switch connected to an input port of each of the at least one SAW filter, and a Dual-Pole n Throw (DPnT) switch connected to an output port of each of the at least one SAW filter.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: March 6, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Joon Park
  • Patent number: 9859079
    Abstract: A reconfigurable device for terahertz (THz) or infrared (IR) ranges that includes a base substrate, a lower array attached to the base substrate, and an upper array attached to the base substrate and at least partially suspended over the lower array. Activation of the reconfigurable device causes the upper array to mechanically flex towards the lower array so that electrical contact is made therebetween. Methods of fabricating and operating the reconfigurable device are also provided.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: January 2, 2018
    Assignee: The Regents of the University of Michigan
    Inventors: Mona Jarrahi, Mehmet Unlu, Christopher W. Berry, Shenglin Li
  • Patent number: 9853501
    Abstract: An edge portion which defines a planar shape has two long end sides (108a, 108b) which extend in parallel to each other, and two short end sides (107, 109) which have parallel portions extending in parallel to each other. The two long end sides and the two short end sides are reflection terminals. The parallel portion of the first short end side (107) includes a first portion (107a) and a second portion (107b). The positions of the antinodes of a first standing wave formed by a traveling wave directed toward the first portion (107a) and a reflected wave of the traveling wave and a second standing wave formed by a traveling wave directed toward the second portion (107b) and a reflected wave of the traveling wave in a direction substantially parallel to the long end sides (108a, 108b) are deviated by ¼ of the wavelength of an electromagnetic wave propagating through an electromagnetic wave transmission sheet.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 26, 2017
    Assignee: NEC CORPORATION
    Inventor: Wataru Hattori
  • Patent number: 9748991
    Abstract: A high performance switch module to filter a radio frequency signal and to selectively connect to an output includes a filter unit and a plurality of switches. The filter unit has a filter configured to connect to the radio frequency signal and having a plurality of parallel output ports. The plurality of switches is connected between the plurality of parallel output ports and the output, the plurality of switches configured to connect to a control input to selectively connect an output port of the plurality of parallel output ports to the output and to selectively connect a remainder of the plurality of parallel output ports to a connection providing a substantially full reflection to the remainder of the plurality of parallel output ports of the filter unit.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: August 29, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Jichang Liao, Xiaoliang Du
  • Patent number: 9734105
    Abstract: An apparatus performs a method for connecting a mobile terminal to an external device. The method includes determining a connection method of the external device among a plurality of connection methods based on values of at least two ports among a plurality of ports included in a connector, and switching at least one switch included in the connection unit so as to connect to the external device according to the determined connection method of the external device.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: August 15, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: One-Gun Lee, Woo-Jong Yoo, Hyun-Ho Park, Ju-Pyo Hong
  • Patent number: 9728330
    Abstract: A radio frequency (RF) circuit is described that comprises a plurality of switching arms selectively activatable and associated with corresponding RF input ports. A switch source impedance is associated with each of the RF input ports. The switch source impedance is frequency dependent with its value matched to a characteristic impedance value within a first frequency range. The value of the switch source impedance is not matched to the characteristic impedance value within a second frequency range. When an RF signal within the first frequency range is transmitted through the RF circuit, between one of the RF input ports and an a common port, an RF distortion voltage within a distortion frequency range results at the common port; and the amplitude of a resultant RF distortion voltage is lower than an RF distortion voltage if the switched source impedance is matched to the characteristic impedance within the second frequency range.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: August 8, 2017
    Assignee: Ferfics Limited
    Inventor: John Keane
  • Patent number: 9722574
    Abstract: An acoustic wave device is provided with a low-frequency side filter having a low-frequency side passband, a high-frequency side filter having a high-frequency side passband, and first and second balanced terminals. The low-frequency side filter is connected to a first unbalanced terminal. The low-frequency side passband is a frequency band from a first minimum frequency to a first maximum frequency. The high-frequency side filter is connected to a second unbalanced terminal. The high-frequency side passband is a frequency band from a second minimum frequency to a second maximum frequency. The low-frequency side filter includes a first longitudinally-coupled acoustic wave resonator and a first one-terminal pair acoustic wave resonator connected in series to the first longitudinally-coupled acoustic wave resonator. An antiresonant frequency of the first one-terminal pair acoustic wave resonator is set to be higher than the first maximum frequency and lower than the second minimum frequency.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: August 1, 2017
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventor: Satoru Ikeuchi
  • Patent number: 9712158
    Abstract: Apparatus and methods for biasing radio frequency (RF) switches are provided herein. In certain configurations, an RF switching circuit includes a field effect transistor (FET) switch electrically connected between a first terminal and a second terminal, and an adaptive biasing circuit that generates a bias voltage used in part to bias a gate of the FET switch. The adaptive biasing circuit includes a low pass filter that generates a low pass filtered voltage based on low pass filtering a voltage of the first terminal, a buffer circuit that receives the low pass filtered voltage and generates a buffered voltage, and a voltage shifting circuit that generates the bias voltage by shifting the buffered voltage by an amount of voltage that depends on a state of a switch control signal.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: July 18, 2017
    Assignee: ANALOG DEVICES GLOBAL
    Inventors: Bilal Tarik Cavus, Ozgun Serttek
  • Patent number: 9712197
    Abstract: Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. According to embodiments of this disclosure, a shunt inductor in parallel with a tunable capacitance circuit can tune the impedance presented to the common port of the multi-throw switch. In certain embodiments, the tunable notch filter includes a series LC circuit in parallel with a tunable impedance circuit.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 18, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: David Steven Ripley, Edward F. Lawrence, Joshua Kawika Ellis
  • Patent number: 9667247
    Abstract: An radio frequency switch according to an example includes a first switching circuit including first switching elements connected in series between an antenna port and a transmission port and operated by a first gate signal, a second switching circuit including second switching elements connected in series between the antenna port and a reception port and operated by a second gate signal, a first shunt circuit connected between the transmission port and a ground and operated by the second gate signal, a second shunt circuit connected between the reception port and the ground and operated by the first gate signal, and a third shunt circuit connected between the reception port and the other end of an inductor grounded at one end and operated by the second gate signal.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 30, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Hyouck Choi, Jeong Hoon Kim, Kyu Jin Choi, Suk Chan Kang
  • Patent number: 9660689
    Abstract: Methods and systems are disclosed for changing between multiple radio frequency (RF) systems. The method comprising transmitting, by a first radio frequency (RF) transmitter of a first RF system, a first RF signal from an antenna, receiving, by a first RF receiver of the first RF system, a second RF signal from the antenna, and receiving, by a second RF receiver of a second RF system, the second RF signal from the antenna, wherein a first RF port of the first RF system and a second RF port of the second RF system are both connected to a common RF port of the antenna, and wherein the first and second RF systems operate with overlapping frequency bands.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: May 23, 2017
    Assignee: Honeywell International Inc.
    Inventors: Marc M. Pos, Keone J. Holt
  • Patent number: 9654150
    Abstract: A module includes: a first duplexer including a common terminal coupled to a first terminal of a diplexer, the diplexer including an antenna terminal coupled to an antenna, the first terminal, and a second terminal; and a second duplexer including a common terminal coupled to the second terminal of the diplexer and having a passband different from a passband of the first duplexer, wherein a frequency at which a reactance component of an impedance is approximately zero and the impedance is less than a reference impedance is not located in a passband of the first duplexer, the impedance being an impedance when the second duplexer is viewed from a node at which the antenna terminal is divided into the first terminal and the second terminal in the diplexer.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: May 16, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Ryuji Murata
  • Patent number: 9647703
    Abstract: In an embodiment, an apparatus includes a first radio frequency (RF) signal path and a second RF signal path. The first RF signal path can provide a first RF signal when active and the second RF signal path can provide a second RF signal when active. The second RF signal path can include a matching network with a load impedance configured to prevent a resonance in the second RF signal path due to coupling with the first RF signal path when the first RF signal path is active.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 9, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventors: Weimin Sun, David Viveiros, Jr., Russ Alan Reisner
  • Patent number: 9564865
    Abstract: Provided is a redundant amplifier, including: a first switch for connecting, on a one-to-one basis, inputs P1 to Pm to m of outputs Q1 to Qn, where m and n are natural numbers and m<n is satisfied; a second switch for connecting, on a one-to-one basis, m of inputs R1 to Rn to m outputs S1 to Sm; and amplifiers A1 to An connected on a one-to-one basis between the outputs Q1 to Qn and the inputs R1 to Rn. Signal paths L1 to Lm are formed in accordance with a connection state between an input and an output of each of the first switch and the second switch, the signal paths L1 to Lm connecting the input P1 and the output S1, the input P2 and the output S2, . . . , and the input Pm and the output Sm, respectively, via any one of the amplifiers A1 to An. The connection state has at least two types in which the signal paths L1 to Lm each have the same length.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: February 7, 2017
    Assignee: NEC Space Technologies, Ltd.
    Inventors: Tomomichi Kusu, Ikuo Hosoda
  • Patent number: 9503034
    Abstract: A switching combiner unit (SCU) may combine coherent RF or microwave outputs from multiple power amplifier units (PAUs). Each SCU may be able to be switched between an on-line mode (on-line PAU), during which the PAU amplifies a coherent instance of the same RF or microwave input signal and delivers that amplified input signal to an output, and a standby or off-line mode (standby/off-line PAU), during which the PAU does not amplify an instance of the same RF or microwave input signal or deliver an amplified input signal to the output.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 22, 2016
    Assignee: DAICO INDUSTRIES, INC.
    Inventor: Eddie Blair
  • Patent number: 9503024
    Abstract: An amplifying device includes: a signal splitter configured to split an input signal to a plurality of signals having a phase difference between the plurality of signals fluctuating in accordance with an absolute value of an amplitude of the input signal; a plurality of amplifiers configured to amplify the plurality of signals respectively; a combiner configured to combine the amplified plurality of signals to generate an output signal; a selector configured to select one of output signals whose phase is inverted or non-inverted; and a switch controller configured to control the signal splitter so that phases of the plurality of signals are non-inverted, and to control the selector so that the selector selects one of the output signals, in accordance with a first point of time when the absolute value becomes a minimum or a second point of time deviated from the first point by a predetermined time period.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 22, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Nobuhisa Aoki
  • Patent number: 9443658
    Abstract: A variable capacitor (300) comprises cells (200, 400) that have an RF electrode (202, 402) coupled to a bond pad (30). Each cell comprises a plurality of MEMS devices (100) the capacitance of which can be changed by means of a movable electrode. The MEMS devices are placed in a sealed cavity of the cell and are arranged next to each other along the length of the RF electrode of the cell. The RF electrode of each cell can be trimmed so as to obtain an RF line (402) and a further ground electrode (404) and so as to scale the RF capacitance of the cell without impacting the mechanical performance of the MEMS cells. Each cell has the same control capacitance irrespective of the RF capacitance. This allows each cell to use the same isolation resistor required for RF operation and thus each cell has the same parasitic capacitance. This allows the CMOS control circuit to be optimized and the dynamic performance of the cells to be matched.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: September 13, 2016
    Assignee: Cavendish Kinetics, Inc.
    Inventors: Robertus Petrus Van Kampen, Richard L. Knipe
  • Patent number: 9438223
    Abstract: A device for switching a radio frequency (RF) signal includes two or more field-effect transistor (FET) unit cells in a stacked or chain topology, and gate or body node filtration circuitry that preserves RF equipotential nodes. The filtration circuitry may be capacitive or resistive-capacitive. The filtration circuitry may be included in each unit cell of the device or in a gate or body bias network that is common to all unit cells in the device.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 6, 2016
    Assignee: Qualcomm Incorporated
    Inventor: Maurice Adrianus de Jongh
  • Patent number: 9431812
    Abstract: A circuit includes a signal line formed of at least one conductive element and a shield at least partially encompassing the signal line. The circuit further includes a first dynamic capacitor located between the shield and the signal line. The first dynamic capacitor is configured to provide a first variable amount of capacitance.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 30, 2016
    Assignee: XILINX, INC.
    Inventor: John E. McGrath
  • Patent number: 9362883
    Abstract: A multi-stage signal handling circuit. Operating as a combiner or splitter, first stage transformers match low input impedance at a first set of differential terminals, and second stage transformers match expected higher impedance at second terminal(s). Transformer windings are mirror image, vertically aligned, meandering conductive tracks disposed on opposite sides of a PCB. Air columns above or below the conductive tracks reduce ground plane effects. A capacitor provided across the differential input terminals of each transformer is chosen to further match the power amplifier output, including consideration of inherent inductance presented by the circuit tracks and vias between transformer sections.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: June 7, 2016
    Assignee: TDK Corporation
    Inventors: Dev V. Gupta, Zhiguo Lai
  • Patent number: 9363344
    Abstract: A high frequency module is configured to be compatible with a cellular phone with a plurality of specifications without increasing the number of ports in a switching device. The high frequency module includes a switching device and a module board. The switching device includes a common port and connection switch ports. The module board includes external connection ports and a third filter circuit. An external connection port is connected to one of the connection switch ports of the switching device via a transmission line inside the module board. The third filter circuit is connected to a second external connection port and a third external connection port independently from the device connection ports of the switching device.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: June 7, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takanori Uejima, Muneyoshi Yamamoto