Transistor Or Integrated Circuit Patents (Class 455/333)
  • Patent number: 11496178
    Abstract: A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: November 8, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Sakurai, Satoshi Arayashiki, Satoshi Tanaka, Kyoichi Hirayama, Tomohito Ito, Kenta Kurahashi
  • Patent number: 11490212
    Abstract: Disclosed herein, among other things, are methods and apparatus for wireless electronics using a MEMS switch for a hearing assistance device. The present application relates to a hearing assistance device configured to be worn by a wearer. The hearing assistance device includes a housing for electronics of the hearing assistance device, including wireless electronics. The wireless electronics include a plurality of radio frequency (RF) MEMS switches, in various embodiments. A hearing assistance processor is adapted to process signals for the wearer of the hearing assistance device. In various embodiments, the hearing assistance device includes an antenna, and a switchable capacitor bank configured for tuning the antenna, the switchable capacitor bank including one or more of the plurality of RF MEMS switches. The plurality of RF MEMS switches include an electrostatically deformed RF MEMS membrane, in an embodiment. Different configurations and approaches are provided.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: November 1, 2022
    Assignee: Starkey Laboratories, Inc.
    Inventors: Gregory John Haubrich, Jeffrey Paul Solum
  • Patent number: 11456761
    Abstract: Provided is a radio-frequency module that includes a module substrate having first and second main surfaces on opposite sides of the module substrate, a resin member that covers the second main surface and includes a first groove and the second groove, a plurality of post electrodes that include a first post electrode and the second post electrode, that are arranged on the second main surface, and that penetrate through the resin member, and a semiconductor component that is arranged between the first post electrode and the second post electrode on the second main surface and that includes a surface that is not covered by the resin member. The first groove is arranged between the first post electrode and the semiconductor component. The second groove is arranged between the second post electrode and the semiconductor component.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: September 27, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masashi Hayakawa
  • Patent number: 11444574
    Abstract: The present disclosure provides a frequency-converting super-regenerative transceiver with a frequency mixer coupled to a resonator and a feedback element having a controllable gain. The frequency-converting super-regenerative transceiver utilizes the frequency mixer to shift the incoming frequencies, based on a controlled oscillator, to match the frequency of operation of the super-regenerative transceiver. The frequency-converting super-regenerative transceivers described herein permit signal data capture over a broad range of frequencies and for a range of communication protocols. The frequency-converting super-regenerative transceivers described herein are tunable, consume very little power for operation and maintenance, and permit long term operation even when powered by very small power sources (e.g., coin batteries).
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: September 13, 2022
    Assignee: MUMEC, INC.
    Inventors: Tristan Orion Rocheleau, Thura Lin Naing
  • Patent number: 11431360
    Abstract: A module substrate has first and second main surfaces that on opposite sides of the module substrate, a resin member that covers the second main surface, and a plurality of post electrodes that are spaced apart from each other on the second main surface and penetrate through the resin member from the second main surface. The plurality of post electrodes includes a first post electrode and a first recess recessed toward the second main surface and formed in at least part of a region of the surface of the resin member that surrounds a leading end part of the first post electrode.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: August 30, 2022
    Assignee: MURATA MANUFACTURING CO., LTD
    Inventor: Tomoya Oda
  • Patent number: 11336324
    Abstract: A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: May 17, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Sakurai, Satoshi Arayashiki, Satoshi Tanaka, Kyoichi Hirayama, Tomohito Ito, Kenta Kurahashi
  • Patent number: 11329732
    Abstract: Systems and methods for improving radio frequency integrated circuits. Extended conducting plates having current forming elements are used to equalize return currents from an array of capacitance banks in radio frequency integrated circuits and to reduce crosstalk between crossing signal lines by providing isolation mechanisms for use as a shield between the signal carrying lines. Material encapsulated magneto-electric antennas are configured into antenna arrays on a PCB or a RFIC package. Antenna arrays may comprise antennas having different directivity levels and may have asymmetric arrangement of antenna elements.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: May 10, 2022
    Inventors: Nadav Mazor, Jan Oredsson, Naftali Chayat
  • Patent number: 11290134
    Abstract: Opposite-side frequency bands are opened in a plurality of carrier aggregations. In a radio frequency module, a variable phase shifter differentiates a phase in a first single mode in which signals of a first frequency band are communicated and a phase in a first carrier aggregation mode and differentiates the phase in the first single mode and a phase in a second carrier aggregation mode. The variable phase shifter makes a phase difference between the phase in the first single mode and the phase in the first carrier aggregation mode different from a phase difference between the phase in the first single mode and the phase in the second carrier aggregation mode.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: March 29, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenji Tahara, Reiji Nakajima
  • Patent number: 11201637
    Abstract: A radio frequency module includes a module board, a transmission power amplifier, a first inductance element connected to an output terminal of the transmission power amplifier, a reception low-noise amplifier, and a second inductance element connected to an input terminal of the reception low-noise amplifier. The first inductance element is mounted on a first principal surface of the module board, and the second inductance element is mounted on a second principal surface of the module board.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: December 14, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Takanori Uejima
  • Patent number: 11190142
    Abstract: A signal amplifying circuit device comprises a mixer and a first and second amplifiers connected in series, where the mixer is configured to receive an RF signal and two LO signals with a preset phase difference therebetween and output a first and a second mixed signals, the first amplifier includes a first input terminal for receiving the first mixed signal, a second input terminal for receiving the second mixed signal, and a first and second output terminals, the second amplifier includes a first input terminal connected to the first output terminal of the first stage of amplifier at a first joint, a second input terminal connected to the second output terminal of the first stage of amplifier at a second joint, a first output terminal, and a second output terminal. A receiver including the signal amplifying circuit device is also disclosed.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 30, 2021
    Inventor: Chun Geik Tan
  • Patent number: 11177820
    Abstract: A n-bit Successive Approximation Register Analog-to-Digital Converter, SAR ADC, is provided. The SAR ADC comprises a respective plurality of sampling cells for each bit of the n-bit of the SAR ADC. Each sampling cell comprises a capacitive element coupled to a cell output of the sampling cell in order to provide a cell output signal. Further, each sampling cell comprises a first cell input for receiving a first signal, and a first switch circuit capable of selectively coupling the first cell input to the capacitive element. Each cell additionally comprises a second cell input for receiving a second signal, and a third cell input for receiving a third signal. The third signal exhibits opposite polarity compared to the second signal. Each sampling cell comprises a second switch circuit capable of selectively coupling one of the second cell input and the third cell input to the capacitive element. The SAR ADC further comprises at least one comparator circuit coupled to the sampling cells.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: November 16, 2021
    Assignee: Intel Corporation
    Inventors: Albert Molina, Martin Clara, Matteo Camponeschi, Christian Lindholm, Kameran Azadet
  • Patent number: 11152150
    Abstract: A device includes a coil configured in a loop topology starting from a first end and extending to a second end, a pair of inward extension legs configured to extend from the first end and the second end toward an interior side of the coil to a third end and a fourth end, respectively, a pair of outward extension legs configured to extend from the first end and the second end toward an exterior side of the coil to a fifth end and a sixth end, respectively, a first capacitor configured to provide a capacitive coupling between the first end and the second end, a second capacitor configured to provide a capacitive coupling between the third end and the fourth end, and a third capacitor configured to provide a capacitive coupling between the fifth end and the sixth end.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: October 19, 2021
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Fei Song, I-Chang Wu, Chia-Liang (Leon) Lin
  • Patent number: 11139231
    Abstract: A radio frequency module includes: a multilayer substrate that includes a plurality of insulator layers; an amplifying circuit that is provided on the multilayer substrate and amplifies a radio frequency signal; a power supply circuit that is provided on the multilayer substrate and supplies power to the amplifying circuit; a ground conductor that is a first conductor pattern having a ground potential and used in the amplifying circuit; and a ground conductor that is a second conductor pattern having a ground potential and used in the power supply circuit. The ground conductors are physically separated from each other and provided in internal layers of the multilayer substrate.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: October 5, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Akifumi Honda
  • Patent number: 11088112
    Abstract: A packaged module for use in a wireless communication device has a substrate supporting a crystal and a first die that includes at least a microprocessor and one or more of radio frequency transmitter circuitry and radio frequency receiver circuitry. The first die is disposed between the crystal and the substrate. An overmold encloses the first die and the crystal. The substrate also supports a second die that includes at least a power amplifier for amplifying a radio frequency input signal, where the second die is disposed on an opposite side of the substrate from the first die and the crystal.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 10, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Darren Roger Frenette, George Khoury, Leslie Paul Wallis
  • Patent number: 11070347
    Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a carrier aggregation (CA) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The CA architecture can further include a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: July 20, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Ethan Chang, Roman Zbigniew Arkiszewski, John G. Freed, Edward James Anthony, Reza Kasnavi
  • Patent number: 10998860
    Abstract: In an amplification apparatus according to the present disclosure, a combining unit combines an output signal of a first amplifier provided at a first branch with an output signal of a second amplifier provided at a second branch and outputs the combined signal. A non-linearity compensation unit multiplies an input baseband signal by a non-linearity compensation coefficient for compensating non-linearity of the entire apparatus, a first deviation compensation unit multiplies a first branch signal by a first deviation compensation coefficient for compensating an inter-branch deviation, and a second deviation compensation unit multiplies a second branch signal by a second deviation compensation coefficient for compensating the inter-branch deviation.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 4, 2021
    Assignee: NEC CORPORATION
    Inventor: Yoshiaki Doi
  • Patent number: 10985734
    Abstract: A radio frequency switch is disclosed. The RF switch uses a combination of transistor technology and a topology to create an RF switch that has a high isolation and a high voltage breakdown at frequencies including those above a gigahertz.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 20, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Gareth Pryce Weale
  • Patent number: 10985794
    Abstract: A radio-frequency switch includes a first switch circuit including a first common terminal, at least two first selection terminals, a first switch that selectively connects the first common terminal and the at least two first selection terminals to each other, and a first shunt switch that switches the first common terminal and ground between a conductive state and a non-conductive state with each other, and a second switch circuit including a second common terminal that is connected to the first common terminal, at least two second selection terminals, and a second switch that selectively connects the second common terminal and the at least two selection terminals to each other.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 20, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Takashi Watanabe
  • Patent number: 10862524
    Abstract: An RF switch for connecting an antenna to a transceiver is described. The RF switch includes a first switchable capacitor arranged between a first terminal and a common terminal and a second switchable capacitor arranged between a second terminal and the common terminal. Each of the first and second switchable capacitors are switchable between a pass state and a blocking state. The capacitance value in the pass state is higher than the capacitance value in the blocking state.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 8, 2020
    Assignee: NXP B.V.
    Inventors: Gian Hoogzaad, Denizhan Karaca
  • Patent number: 10847543
    Abstract: A radio-frequency device comprises a first transistor including a first set of fingers having a first finger-to-finger spacing in a width dimension of the first transistor, and a second transistor in a series connection with the first transistor, the second transistor including a second set of fingers having a second finger-to-finger spacing in the width dimension that is greater than the first finger-to-finger spacing.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: November 24, 2020
    Assignee: Skyworks Solutions, Inc.
    Inventor: David Scott Whitefield
  • Patent number: 10707152
    Abstract: A high-frequency device manufacturing method is provided. The method includes providing a substrate; forming a conductive material on the substrate; standing the substrate and the conductive material for a first time duration; forming a conductive layer by sequentially repeating the steps of forming the conductive material and standing at least once; and patterning the conductive layer. The thickness of the conductive layer is in a range from 0.9 ?m to 10 ?m. A high-frequency device is also provided.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 7, 2020
    Assignee: INNOLUX CORPORATION
    Inventors: Ming-Yen Weng, Ker-Yih Kao, Chia-Chi Ho, Tsutomu Shinozaki, Cheng-Chi Wang, I-Yin Li
  • Patent number: 10687150
    Abstract: An apparatus includes a battery, a plurality of circuit components operable independently, and a controller coupled to the battery and the plurality of circuit components and configured to control operation of the plurality of circuit components. The apparatus further includes a power consumption monitor coupled to the controller and configured to calculate a remaining battery life of the battery based on at least one operating time of a corresponding at least one of the plurality of circuit components.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: June 16, 2020
    Assignee: AUDIOTONIQ, INC.
    Inventor: Frederick Charles Neumeyer
  • Patent number: 10554294
    Abstract: The systems and processes described herein can reduce the footprint of the internal devices of a wireless device by combining the DC-DC supply regulator with a FEM. Further, the device footprint can be further reduced by sharing the integrated DC-DC supply regulator among multiple FEMs reducing or eliminating the use of a separate DC-DC supply regulator for each FEM of a wireless device. Moreover, in certain embodiments, by integrating the DC-DC supply regulator into a 2G FEM, power efficiency can be improved for some wireless devices. For example, the DC-DC supply regulator may be used to supply power to a PA used for high-band 2G transmission functions. Using the DC-DC supply regulator can improve power efficiency compared to systems that supply the power for the high-band 2G PA directly from the power supply (e.g., the battery).
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: February 4, 2020
    Assignee: Skyworks Solutions, Inc.
    Inventor: David Steven Ripley
  • Patent number: 10530237
    Abstract: An energy storage system for use in a renewable energy power system is provided. More particularly, an energy storage system can be coupled to the DC bus of a power converter in a renewable energy power system. A switching power supply can be coupled between the energy storage device and the DC bus of the power converter. The switching power supply can include a bi-directional resonant DC to DC converter. The bi-directional resonant converter can include a plurality of switching elements, a resonant circuit coupled to the at least one switching element, and a filtering circuit coupled to the resonant circuit. The bi-directional resonant converter can be configured to accommodate power flow in at least two directions.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: January 7, 2020
    Assignee: General Electric Company
    Inventors: Robert Gregory Wagoner, Harold Robert Schnetzka
  • Patent number: 10454543
    Abstract: A method and an apparatus for transmitting a signal by using a plurality of radio units (RUs) to a user equipment (UE). The apparatus is configured to: determine an RU set including at least two RUs of the plurality of the RUs based on a feedback regarding a received strength of a transmission beam formed by the plurality of the RUs, wherein the feedback is received from the UE; determine a distributed precoding matrix of which a diversity order is predetermined based on information about an RU included in the RU set; and perform a precoding based on the distributed precoding matrix and transmitting a precoded signal to the UE through the RU set.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 22, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seuck Ho Won, Yeong Jin Kim, Il Gyu Kim
  • Patent number: 10447458
    Abstract: Circuits and methods related to radio-frequency (RF) architectures having carrier aggregation. In some implementations, a carrier aggregation (CA) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna. The CA architecture can further include a first amplification path and a second amplification path coupled to respective ports of the duplexer, each of the first amplification path and the second amplification path configured to amplify a signal in its respective frequency band, each amplification path including a transmit/receive (TX/RX) switch configured to provide time-division duplexing (TDD) functionality for the amplified signal and a received signal. In some implementations, the first frequency band includes a B39 band, and the second frequency band includes a B41 band.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 15, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: Ethan Chang, Roman Zbigniew Arkiszewski, John G Freed, Edward James Anthony, Reza Kasnavi
  • Patent number: 10375754
    Abstract: A radio frequency front end (RFFE) is configured to support dual connectivity communications, in which two different radio access technologies such as LTE and NR are used simultaneously for uplink communications from a wireless communications device to a base station. The RFFE has two channels and two respectively associated antennas. The first channel transmits an NR signal from the first antenna. The second channel transmits an LTE signal from the second antenna. For reception, the first channel produces a main NR receive signal and LTE diversity signal. The second channel produces a main LTE receive signal and an NR diversity signal.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 6, 2019
    Assignee: T-Mobile USA, Inc.
    Inventors: Wei-Ming Lan, Ming Shan Kwok
  • Patent number: 10283353
    Abstract: A method of reforming an insulating film deposited on a substrate having a recess pattern constituted by a bottom and sidewalls, includes: providing the film deposited on the substrate having the recess pattern in an evacuatable reaction chamber, wherein a property of a portion of the film deposited on the sidewalls is inferior to that of a portion of the film deposited on a top surface of the substrate; adjusting a pressure of an atmosphere of the reaction chamber to 10 Pa or less, which atmosphere is constituted by H2 and/or He without a precursor and without a reactant; and applying RF power to the atmosphere of the pressure-adjusted reaction chamber to generate a plasma to which the film is exposed, thereby reforming the portion of the film deposited on the sidewalls to improve the property of the sidewall portion of the film.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 7, 2019
    Assignee: ASM IP Holding B.V.
    Inventors: Akiko Kobayashi, Masaru Zaitsu, Nobuyoshi Kobayashi, Masaru Hori
  • Patent number: 9972587
    Abstract: A signal transmission device comprises: a first lead frame having a first major surface and a second major surface opposite to the first major surface; a second lead frame having a third major surface and a fourth major surface and isolated from the first lead frame, the fourth major surface located opposite to the third major surface; a transmission circuit that sends a transmission signal, the transmission circuit located on the first major surface of the first lead frame; a receiving circuit located on the third major surface of the second lead frame; and an electromagnetic resonance coupler located across between the second major surface of the first lead frame and the fourth major surface of the second lead frame to transmit the transmission signal, sent by the transmission circuit, to the receiving circuit in a contactless manner.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: May 15, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Songbaek Choe, Shuichi Nagai
  • Patent number: 9880802
    Abstract: A processing path may include a controller and a plurality of processing paths including a first processing path and a second processing path. The first path may be configured to generate a first digital signal based on an analog input signal and the second path may be configured to generate a second digital signal based on the analog input signal, wherein the first path has a lower gain and a higher noise floor than the second path. The controller may be configured to determine that a transition between the first path and the second path needs to occur based on the analog input signal crossing a threshold or a prediction that the input signal will cross the threshold and in response to determining the transition between the first path and the second path needs to occur, blend the transition during or near zero cross points of the analog input signal.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: January 30, 2018
    Assignee: Cirrus Logic, Inc.
    Inventors: Aniruddha Satoskar, Daniel J. Allen, Edmund Mark Schneider, Tejasvi Das, Ku He, John L. Melanson
  • Patent number: 9743182
    Abstract: A system may include control circuitry for detecting a plosive event associated with a microphone transducer and in response to the plosive event, causing restoration of acoustic sense operation of the microphone transducer and a processing circuit associated with the microphone transducer. A system for configuring a filter having at least two frequency response configurations to achieve an effective frequency response configuration intermediate to the at least two frequency response configurations may include control circuitry for rapidly switching between the at least two frequency response configurations such that a weighted average frequency response of the filter corresponds to the effective frequency response configuration.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 22, 2017
    Assignee: Cirrus Logic, Inc.
    Inventors: Jaimin Mehta, Stephen T. Hodapp
  • Patent number: 9634659
    Abstract: One or more systems and techniques for limiting a voltage potential between an antenna and a radio-frequency switch circuit are provided. A voltage controller comprises a voltage generator, a voltage detection circuit and a switch cell. The voltage detection circuit is coupled to the voltage generator and to the switch cell, and the switch cell is coupled to a voltage source, and to a node between the radio-frequency switch circuit and the antenna. When the voltage potential exceeds a specified threshold, the voltage generator produces a voltage which the voltage detection circuit measures such that the voltage detection circuit activates the switch cell, resulting in a short circuit between the radio-frequency switch circuit and the voltage source. This serves to inhibit the voltage potential from exceeding the specified threshold, for example.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: April 25, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Jun-De Jin, Tzu-Jin Yeh, Chewn-Pu Jou
  • Patent number: 9625289
    Abstract: This invention relates to a calibration method of modulation power for DVB-H test apparatus for reducing the calibration time for the power loss in the RF cable to half through calibration using the expected power loss of the modulated wave at an arbitrary frequency based on the measured power losses of the continuous wave over frequencies in the RF cable.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: April 18, 2017
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jinsoup Joung, Jongmin Kim, Changbok Yang, Myunggu Kang
  • Patent number: 9590745
    Abstract: A method operative on a wireless transceiver device for performing beamforming calibration includes: measuring at least one joint signal response of at least one circuit loopback between a transmitter of the wireless transceiver device and a receiver of the wireless transceiver device to determine the measurement result; and calibrating joint signal path mismatch according to the measurement result for s multiple antenna beamforming system operating on the wireless transceiver device.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Yen-Lin Huang, Hsiang-Hui Chang, Hung-Tao Hsieh, Gary A. Anwyl, Thomas Edward Pare, Jr.
  • Patent number: 9524985
    Abstract: The invention relates to a Radio Frequency System and method. A Radio Frequency (RF) system comprising a RF switch comprising a plurality of transistor switching elements implemented on Silicon on Insulator (SOI) for switching at least one or more RF signals and said SOI comprises a bulk substrate region and a buried oxide region. At least one filter is adapted to isolate the RF signal from the substrate and/or other high frequency signals or control signals present in the RF system. There is also provided a coupling capacitor adapted to cooperate with the filter to improve linearity of the transistor switch elements.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: December 20, 2016
    Assignee: Ferfics Limited
    Inventors: Eugene Heaney, John O'Sullivan, Stephen Keeney
  • Patent number: 9438303
    Abstract: A front end circuit includes a transmission signal filter for allowing a transmission signal to pass, a reception signal filter for allowing a reception signal to pass and a circulator (an antenna duplexer), and a transmission output variable circuit is connected between a transmission signal terminal of the circulator and the transmission signal filter. The transmission output variable circuit includes a first high frequency switch, a second high frequency switch, and a buffer circuit, and attenuation is switched by switching of the first high frequency switch and the second high frequency switch.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: September 6, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kengo Onaka, Hiroya Tanaka, Hidenori Obiya
  • Patent number: 9414280
    Abstract: A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. The relative delay takes into account different systematic propagation durations from the first BS and the second BS to the RNC. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames is carried out in dependence on the relative delay.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 9, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON
    Inventors: Sándor Rácz, Szilveszter Nádas, Martin Skarve
  • Patent number: 9407349
    Abstract: A wireless transmitter has a modulator modulating an information signal of a frequency f1 by a carrier wave of a frequency f2 to output a first modulated signal, a transmitting antenna transmitting the first modulated signal using a linearly polarized wave, and a motor rotating the transmitting antenna at a frequency f3 to rotate the outgoing linearly polarized wave at the frequency f3 thereby multiplexing the first modulated signal with a linearly polarized wave component and a horizontally polarized wave component, the two components being independent of each other. A wireless receiver has diversity receiving antennas receiving the signal on a plurality of polarization planes to obtain a plurality of input signals; a path difference phase shifter compensating each of the input signals for the phase shift stemming from path differences, and a composer composing the corrected received signals.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: August 2, 2016
    Assignee: HITACHI, LTD.
    Inventor: Ken Takei
  • Patent number: 9407311
    Abstract: A first electronic device may include a first electronic circuit and a second electronic circuit. The first electronic device may include an internal communication link providing a signal path for conducting communication signals between the first electronic circuit and the second electronic circuit. An interface circuit may be operatively coupled to the internal communication link. The interface circuit may include an extremely high frequency (EHF) communications circuit configured to receive an EHF electromagnetic signal from another EHF communications circuit of a second electronic device. This EHF electromagnetic signal may enable the second electronic device to control or monitor the first electronic device.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: August 2, 2016
    Assignee: Keyssa, Inc.
    Inventors: Gary D. McCormack, Ian A. Kyles
  • Patent number: 9401737
    Abstract: Embodiments of the present invention may be used to generate oscillating signals. One embodiment of the present invention includes a circuit that receives a differential signal to be divided. The circuit converts the differential signal into an injection signal. The injection signal is coupled to an oscillator, and the oscillator generates an output signal having a frequency that is a fraction of the frequency of the differential input signal. In another embodiment, the present invention includes a MIMO wireless communication system. The MIMO system may use the divider circuit to divide a local oscillator signal with reduced common mode distortion.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: July 26, 2016
    Assignee: Marvell International Ltd.
    Inventors: Paolo Rossi, Sang Won Son
  • Patent number: 9385424
    Abstract: The three-dimensional integrated structure including a support element, an interface device connected to the support element by first electrically conductive connection, an integrated circuit arranged between the support element and the interface device and connected to the interface device by second electrically conductive connection, a filler region between the second electrically conductive connection and between the interface device and the integrated circuit, and an antenna, having a radiating element in electromagnetic coupling with an excitation element through the interconnection of a slot, the antenna being distributed over the interface device and the integrated circuit.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: July 5, 2016
    Assignees: STMicroelectronics SA, Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Pierre Bar, Laurent Dussopt, Jean-François Carpentier
  • Patent number: 9331031
    Abstract: A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge portion thereof; wherein the amplifier has a transistor including a control electrode, a first electrode through which a signal is outputted, and a second electrode to which a voltage is applied; wherein the control electrode, the first electrode and the second electrode of the transistor are connected to the electrode terminals, respectively; and wherein none of wirings are arranged between the electrode terminals and placements of the control electrode, the first electrode and the second electrode, making space between the electrodes and the electrode terminals narrow.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: May 3, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kumiko Takikawa, Satoshi Tanaka, Yoshiyasu Tashiro
  • Patent number: 9203528
    Abstract: A method for reducing frequency band interference for a multi-mode terminal, including: using a first frequency band to establish a first service in a first network standard; using a second frequency band to establish a second service in a second network standard; when determining that the first frequency band and the second frequency band interfere with each other, updating a frequency band capability support state or reporting an interference collision event to a network corresponding to a low-priority service, so that the network corresponding to the low-priority service updates a frequency band used by the low-priority service to a frequency band that has less interference with a frequency band used by a high-priority service, and establishing the low-priority service according to the updated frequency band. According to the embodiments of the present invention, interference between frequency bands of the multi-mode terminal may be reduced.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: December 1, 2015
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaochun Zheng, Xuehong Zeng, Jingjun Yang
  • Patent number: 9197159
    Abstract: A mixer includes a first node to which an intermediate frequency (IF) signal is input; first and second transistors that respectively have control terminals supplied with local signals having mutually opposite phases and output terminals connected to the first node; a first filter that is connected between the output terminal of the second transistor and the first node and suppresses passage of the IF signal; a second node to which the IF signal is input; third and fourth transistors that respectively have control terminals supplied with local signals having mutually opposite phases and output terminals connected to the second node; a second filter that is connected between the output terminal of the fourth transistor and the second node and suppresses passage of the IF signal; and a combiner combining a signal output from the first node and a signal output from the second node.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: November 24, 2015
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.
    Inventors: Seiji Fujita, Tsuneo Tokumitsu
  • Patent number: 9197253
    Abstract: A RF switch may include: a common port coupled to an antenna to transmit and receive first and second high frequency signals; a transmitting switching unit coupled between a transmitting port transferring the first high frequency signal and the common port and including a plurality of switching devices coupled to each other in series; and a receiving switching unit coupled between a receiving port transferring the second high frequency signal and the common port and including a first switching unit including a first switching device. The first switching unit may further include a second switching device having a first terminal coupled to a first terminal of the first switching device and a second terminal coupled to a control terminal of the first switching device.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: November 24, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyun Jin Yoo, Yoo Sam Na, Jong Myeong Kim, Hyun Hwan Yoo, Yoo Hwan Kim
  • Patent number: 9197280
    Abstract: A radio frequency switch may include: a common port transmitting and receiving a radio frequency signal; a receive switch unit including a first switch unit having a plurality of first switch elements and a second switch unit having a plurality of second switch elements; and a transmit switch unit including a third switch unit having a plurality of third switch elements and a fourth switch unit having a plurality of fourth switch elements. The receive switch unit may further include a plurality of first capacitors connected between a first terminal and a body terminal of each of the plurality of first switch elements. The transmit switch unit may further include a plurality of second capacitors connected between a second terminal and a body terminal of each of the plurality of third switch elements.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: November 24, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyun Hwan Yoo, Jong Myeong Kim, Hyun Jin Yoo, Yoo Sam Na, Yoo Hwan Kim
  • Patent number: 9190975
    Abstract: A radio receiver and method of operating the same are disclosed. In one embodiment, the radio receiver may include a RF receive path configured to convey a first radio signal within a first band to a radio tuning circuit. The RF receive path may be controllable using a first AGC circuit. The radio receiver may also include a loop-through path configured to convey a second radio signal within a second band between an input and an output of the radio receiver. The second band may be different from the first band. The loop-through path may be controllable using a second AGC circuit.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 17, 2015
    Assignee: Silicon Laboratories Inc.
    Inventors: Dan B. Kasha, Russell Croman, Mike R. May, Mark W. May, Navin Harwalkar, Tim Stroud
  • Patent number: 9190956
    Abstract: A sub-harmonic electronic mixer has at least one field effect transistor (FET) having a gate, source, and drain; and a useful signal input at a useful frequency; and a local oscillator input. The input receives the oscillator signal at a frequency being an integral fraction of the useful frequency, plus or minus a mixing frequency to provide a signal output. A gate of the FET and/or the drain and/or the source receives the useful signal to generate a gate-source voltage and/or a drain-source voltage whereby the gate receives the local oscillator signal to generate a gate-source voltage, and the drain or a source receives the local oscillator signal to generate a drain-source voltage. A phase shift is introduced between the signal received at the gate and the signal received at the drain or source of the FET.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: November 17, 2015
    Assignee: Johann Wolfgang Goethe-Universitat Frankfurt a.M.
    Inventors: Hartmut G. Roskos, Alvydas Lisauskas, Sebastian Boppel
  • Patent number: 9178725
    Abstract: Systems, apparatus, modules, and methods of communicating with memory devices utilizing multi-band communication containing a baseband and one or more amplitude shift keyed (ASK) RF channels over each differential pair of off-chip transmission lines. Configurations are described for interfacing between microprocessors, or controllers and memory devices or modules, and within a DIMM and its DRAM devices, and between multiple DIMM memory modules.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 3, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Mau-Chung Chang, Sai-Wang Tam, Gyung-Su Byun, Yanghyo Kim, Kanit Therdsteerasukdi, Jeremy Ir, Glenn Reinman, Jingsheng Cong
  • Patent number: 9148108
    Abstract: Provided is a band pass filter constituted by a printed circuit board (PCB) and a multi-layer ceramic chip (MLCC) to be mounted in a circuit, without additional parts such as a low temperature co-fired ceramic (LTCC) based filter, and so on, and it is an object to produce a band pass filter constituted by an inductor formed of a PCB pattern and a capacitor formed of an MLCC to implement a high performance and compact band pass filter. The band pass filter includes an inductor pattern part formed of a plurality of PCB patterns and having inductance; an MLCC part constituted by a plurality of MLCCs mounted in a lower end side of the inductor pattern part and having a capacitance; and a port part formed of a plurality of PCB patterns and connected to the PCB patterns extending from the inductor pattern part.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: September 29, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Seung Goo Jang