Patents Examined by Junpeng Chen
  • Patent number: 11228285
    Abstract: A power amplifier, for a transmitter circuit is disclosed, which comprises at least one field-effect transistor having a gate terminal and a bulk terminal. The at least one field-effect transistor is configured to receive an input voltage at the gate terminal and a dynamic bias voltage at the bulk terminal. The power amplifier comprises a bias-voltage generation circuit configured to generate the dynamic bias voltage as a nonlinear function of an envelope of input signal. The input voltage is a linear function of the input signal. The bias-voltage generation circuit comprises a rectifier circuit configured to generate a rectified input voltage and an amplifier circuit, operatively connected to the rectifier circuit, configured to generate the dynamic bias voltage based on the rectified input voltage. The amplifier circuit is a variable-gain amplifier circuit and the power amplifier comprises a control circuit configured to tune the gain of the amplifier circuit.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: January 18, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christian Elgaard, Stefan Andersson, Andreas Axholt, Imad ud Din
  • Patent number: 11212380
    Abstract: Ruggedized voice and data communication systems are disclosed having ruggedized enclosures for housing a communications board with at least one transceiver and a plurality of interfaces. The system has a power supply configured to receive a first voltage and convert the first voltage to a second voltage and provide the second voltage to the communications board.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 28, 2021
    Inventors: Myron C. Butler, Mark Davis
  • Patent number: 11205858
    Abstract: This patent application describes systems, devices, and methods for element-level self-calculation of phased array vectors by a beam forming ASIC using direct calculation such as for fast beam steering.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: December 21, 2021
    Assignee: Anokiwave, Inc.
    Inventors: Jason Durbin, Nitin Jain
  • Patent number: 11202199
    Abstract: An electronic device includes a display; a first wireless communication circuit configured to support Bluetooth (BT) communication and to include a first BT address; a processor operatively connected to the display and the first wireless communication circuit; and a memory, wherein the memory may store instructions that are configured to, when executed, cause the processor to: receive first data including a second BT address associated with a first external device; perform a page scan based on the first BT address and the second BT address using the BT communication; receive second data based on the second BT address from a second external device using the BT communication; identify information for connection with the second external device based on the second data using the BT communication; and provide a user interface for connection with the second external device through the display based on the identified information.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Euibum Han, Gupil Cheong, Gibeom Kim, Hyunah Oh, Doosuk Kang
  • Patent number: 11201634
    Abstract: A radio-frequency switching apparatus that can be used to turn a signal path on or off or to attenuate a radio-frequency signal. The switching apparatus comprises at least one radio-frequency input, at least one radio-frequency output, at least one transmission line providing a signal path between the at least one radio-frequency input and the at least one radio-frequency output, and at least one transition metal oxide portion. The radio-frequency switching apparatus also comprises direct current blocking means electrically coupled between the at least one transition metal portion and the at least one radio-frequency input. The radio-frequency switching apparatus also comprises biasing means for providing a bias across the at least one transition metal oxide portion such that power transferred between the radio-frequency input and the radio-frequency output is controlled by controlling the bias level across the at least one transition metal oxide portion.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: December 14, 2021
    Assignee: Nokia Technologies Oy
    Inventors: Senad Bulja, Dirk Wiegner, Wolfgang Templ, Rose Kopf
  • Patent number: 11196143
    Abstract: Embodiments of the present application disclose an antenna element, an antenna array, and a base station. The antenna element comprises: a metal floor; and a first polarized antenna and a second polarized antenna disposed on an insulating bracket, wherein the insulating bracket is disposed on the metal floor; the first polarized antenna is orthogonal in polarization to the second polarized antenna; the shape of a radiating surface is a graph surrounded by an asteroid, a first oscillating arm and a second oscillating arm are symmetrically disposed; a first feeding end and a second feeding end are differentially fed; the second polarized antenna is composed of a third feeding end, a fourth feeding end, and a second symmetrical oscillator located on the radiating surface; a third oscillating arm and a fourth oscillating arm are symmetrically disposed; the third feeding end and the fourth feeding end are differentially fed.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: December 7, 2021
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Jianchuan Liu, Yuehua Yue
  • Patent number: 11171615
    Abstract: Example embodiments provide a process that includes one or more of receiving an audio signal at a feedback compressor circuit, multiplying the received audio signal with a power feedback signal to create a product audio signal, wherein the feedback signal comprises a low-pass filtered signal, applying a power amplifier to the product audio signal, and providing the amplified product audio signal as an output signal to a speaker.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 9, 2021
    Assignee: Blamp Systems, LLC
    Inventor: Aaron Faulstich
  • Patent number: 11172351
    Abstract: In certain embodiments, an electronic device may include a subscriber identification module (SIM) tray allowing at least one SIM card to be loaded in a row, a SIM detector detecting the at least one SIM card, and a processor operatively connected to the SIM detector. The processor may be configured to detect, through the SIM detector, an insertion of the SIM tray in which the at least one SIM card is loaded, to determine whether the insertion of the SIM tray is completed within a predetermined time, and to perform a SIM reset operation corresponding to the at least one SIM card in response to the completed insertion of the SIM tray. Other embodiments are possible.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jaehong Kim
  • Patent number: 11166141
    Abstract: An electronic device includes a display, a wireless communication circuit configured to support a protocol capable of short-range wireless communication between electronic devices, at least one processor operatively connected with the display and the wireless communication circuit, and a memory operatively connected to the at least one processor, wherein the memory is configured to store instructions that, when executed, cause the at least one processor to broadcast a first control packet used for an inquiry procedure through the wireless communication circuit, receive a plurality of second control packets in response to the first control packet through the wireless communication circuit, identify a plurality of clock values in the plurality of second control packets, and display, on the display, a user interface indicating inquiry results of a plurality of external electronic devices that transmitted the plurality of second control packets based on the plurality of clock values.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: November 2, 2021
    Inventors: Gupil Cheong, Jesus Manuel Perez Pueyo, Doosuk Kang, Bokun Choi, Sungjun Choi
  • Patent number: 11165457
    Abstract: Techniques are provided for tuning over a broad radio frequency (RF) bandwidth. A tuner implementing the techniques according to an embodiment includes an input module compromising a single-conversion superheterodyne receiver to convert a first RF signal to a processed RF signal by frequency translating from a first frequency range to a lower second frequency range. The input module is also configured to receive a second RF signal occupying the second frequency range and provide the second RF signal as a pass-through RF signal. The tuner also includes a down-conversion module to convert the processed RF signal to a first intermediate frequency (IF) signal by frequency translating the processed RF signal from the second frequency range to a lower third frequency range, and to convert the pass-through RF signal to a second IF signal by frequency translating the pass-through RF signal from the second frequency range to the third frequency range.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: November 2, 2021
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Randall T. Enderby
  • Patent number: 11166181
    Abstract: Described is a method for performance estimation of a communication device. The method comprises: executing active probing to determine active probing data; reading operational data which includes data related to channel and its noise condition, latency and counter values related to user data traffic between the communication device and another communication device, wherein the operational data is relevant to the current settings of the communication device; and training a performance estimation algorithm for the communication device according to the active probing data and the operational data.
    Type: Grant
    Filed: April 11, 2020
    Date of Patent: November 2, 2021
    Assignee: ASSIA SPE, LLC
    Inventors: Ramya Bhagavatula, Guocong Song, Kenneth J. Kerpez, Wonjong Rhee
  • Patent number: 11158940
    Abstract: Systems and methods relating to self-calibration of an antenna array of a transceiver are disclosed. In some embodiments, a method of operation of a transceiver to perform self-calibration for transmit (Tx) antenna elements and receive (Rx) antenna elements in an antenna array comprises performing gain measurements and phase measurements for pairs of Tx and Rx antenna elements in the antenna array. The method further comprises processing the gain measurements and the phase measurements based on combinations of Tx and Rx antenna elements having symmetrical coupling properties to obtain gain and phase calibration values for the plurality of Tx antenna elements and the plurality of Rx antenna elements in the antenna array and applying the gain and phase calibration values at the transceiver. In this manner, self-calibration can be performed at the transceiver dynamically with low complexity.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: October 26, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Raihan Rafique, Jacob MannerstrĂ¥le
  • Patent number: 11153421
    Abstract: An electronic device is provided.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: October 19, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jongmin Kang, Yunsik Kim, Jungwon Park, Seungchul Baek, Suman Lee, Chijoon Kim
  • Patent number: 11152898
    Abstract: A radio-frequency circuit includes a first switch which includes a common terminal, a first selection terminal, and a second selection terminal, and switches between connecting the common terminal and the first selection terminal and connecting the common terminal and the second selection terminal; a first low-noise amplifier including an input terminal connected to the first selection terminal, and a second low-noise amplifier including an input terminal connected to the second selection terminal. The frequency band in which the first low-noise amplifier amplifies a radio-frequency signal by at least a predetermined gain includes the frequency band in which the second low-noise amplifier amplifies a radio-frequency signal by at least a predetermined gain.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 19, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Morio Takeuchi, Syunsuke Kido
  • Patent number: 11153932
    Abstract: A communication device for communication in one or more mobile communication systems has a selection device for coupling one or more mobile radio antennas to one or more signal paths on the basis of a selection signal. The communication device also has a transceiver module, which is designed to generate the selection signal and to communicate in the one or more mobile communication systems by way of the coupled mobile radio antennas. The transceiver module is designed to select, on the basis of two or more user identifications, different mobile radio antennas for communication in the one or more mobile communication systems by way of the selection signal. The transceiver module is designed to take isolation and/or correlation between the mobile radio antennas into account in the selection.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: October 19, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: David Gozalvez Serrano, Adrian Posselt
  • Patent number: 11152699
    Abstract: Method, apparatus and arrangement for linearizing of a transmitter array having a plurality of non-linear branches for transmitting into a predetermined direction, wherein the non-linear branches may purposively be made different to obtain varying responses of the non-linear branches over the transmitter array. A combined array response is determined via a feedback structure that models an array response to the predetermined direction and predistortion coefficients are determined based on the measured array response. A feedback circuit with a plurality of feedback branches can be used for feeding back individual response signals at the outputs of the non-linear branches through phase shift and attenuation units of the feedback branches, and for combining the response signals at the outputs of the feedback branches, wherein phase shift and attenuation of each feedback branch is controlled to model a transmission channel of the individual response signals to a receiver in a predetermined direction.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: October 19, 2021
    Assignee: Nokia Technologies Oy
    Inventors: Nuutti Tervo, Aarno Tapio Parssinen, Marko Leinonen
  • Patent number: 11152682
    Abstract: The present invention meets the needs described above through low-PIM universal antenna equipment mounts and associated assemblies for use at cell sites. The universal mounts are typically deployed in antenna equipment assemblies located in the nearfield reactive region behind the base station antennas. The mounts suppress PIM generation as compared to conventional equipment mounts even though the universal mounts are located well outside the main beam of the base station antenna. An illustrative universal mount includes a pressure bushing with a cap that includes a pair of parallel rails to stabilize the bushing on a metal mast. The rails allow the pressure bushing to transfer the load of the supported equipment to the curved surface of round cylindrical masts irrespective of the pipe diameter within the typical range of mast diameters, such as 2 inches to 6 inches in diameter.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: October 19, 2021
    Assignee: ConcealFab Corporation
    Inventors: William Pounds, Thomas Bell, Steve Rogers
  • Patent number: 11143935
    Abstract: A technique prevents leakage of private images and/or images unintended by a user from an imaging device connected to a network, without a troublesome manual operation of opening and closing a cover. A blade operating device includes a blade that opens and closes an optical path of an imaging device connectable to a network, a blade driver that opens and closes the blade, and a controller that controls the blade driver. The controller controls the blade driver to close the blade when the imaging device is turned off.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: October 12, 2021
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Kenzo Imai, Nobuaki Watanabe, Daisuke Kakemizu
  • Patent number: 11145957
    Abstract: An antenna, an antenna control method, and a terminal, where the antenna includes an antenna body and an antenna branch, where one end of the antenna branch is coupled to the antenna body, the other end is coupled to a feedpoint of a primary radio frequency channel, and the end of the antenna branch that is coupled to the feedpoint of the primary radio frequency channel is further coupled to the antenna body through a first adjustable device, where the first adjustable device is in an on state or an off state. An antenna branch is coupled between the feedpoint of the primary radio frequency channel and the antenna body, and the antenna branch is capable of coupling or decoupling by switching on or off the first adjustable device.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: October 12, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chongfeng Zhao, Bao Lu, Kun Li
  • Patent number: 11139784
    Abstract: An example audio play circuit includes a power supply module, a power amplifier, a coupling capacitor, a load, and a plosive suppression circuit. An output terminal of the power amplifier is connected to a first terminal of the coupling capacitor and an output terminal of the plosive suppression circuit, a second terminal of the coupling capacitor is connected to the load, and an output terminal of the power supply module is connected to a power supply terminal of the power amplifier and a power supply terminal of the plosive suppression circuit. The power supply module is configured to provide a direct current power supply voltage for the power amplifier and the plosive suppression circuit. When the direct current power supply voltage rises to the first voltage threshold, the plosive suppression circuit connects the first terminal of the coupling capacitor to the ground terminal.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 5, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Deyang Yin, Jun Li, Ding Li, Shuai Du