Common Antenna Patents (Class 455/82)
  • Patent number: 11749901
    Abstract: A hybrid antenna structure includes a first metal element, a second metal element, a third metal element, a cable, and a proximity sensor. The first metal element has a feeding point. The second metal element is adjacent to and separate from the first metal element. A coupling gap is formed between the second metal element and the first metal element. The third metal element is coupled to a connection point on the second metal element. The proximity sensor is coupled through the cable to the third metal element. The second metal element and the third metal element are used as both a sensing pad and a radiation element.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: September 5, 2023
    Assignee: ACER INCORPORATED
    Inventors: Kun-Sheng Chang, Ching-Chi Lin
  • Patent number: 11671160
    Abstract: A communications device comprises controller circuitry configured in combination transmitter and receiver circuitry to form one or more beams to transmit data, each of the beams having a different angular bias with respect to a location of the communications device, to transmit the signals, using a first of the beams, to change, dependent on one or more sets of predetermined conditions being met, a beam width of the first of the beams, and to re-transmit the signals using the first of the beams having the changed beam width.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: June 6, 2023
    Assignee: SONY CORPORATION
    Inventors: Shin Horng Wong, Martin Warwick Beale
  • Patent number: 11528052
    Abstract: A data transmission method, a first chip, an electronic device, and a storage medium are provided. Data transmission of the first chip with a second chip is performed in one of a standard working mode based on a standard Bluetooth protocol and a non-standard working mode including at least one of: a first working mode in which data is transmitted with the second chip in a designated first fixed channel of the standard channels; a second working mode in which data is transmitted with the second chip by frequency hopping among extended extension channels; a third working mode in which data is transmitted with the second chip in a designated second fixed channel of the extended extension channels; and a fourth working mode in which data is transmitted with the second chip by frequency hopping among the standard channels and the extended extension channels.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: December 13, 2022
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventor: Shilin Guo
  • Patent number: 11469783
    Abstract: Example systems and methods of a wireless device use a signal attribute detector to determine a signal attribute value associated with a first frame received via a first antenna. Media access control (MAC) logic can detect that the first frame indicates an acknowledgement (ACK) of a second frame transmitted by the wireless device. Responsive to the detection of the ACK by the MAC logic, an antenna evaluator uses the signal attribute value to select one of the first antenna and the second antenna to transmit or receive a third frame.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: October 11, 2022
    Assignee: Cypress Semiconductor Corporation
    Inventor: David Hong
  • Patent number: 11444685
    Abstract: Embodiments describe systems, apparatuses, and methods for transmitting/receiving signal data to/from a plurality of transceiver modules. Devices in accordance with some embodiments can include a plurality of wireless transceiver modules, each wireless transceiver module to be communicatively coupled to a corresponding external transceiver module, one or more antennas to exchange signal data with the plurality of external transceiver modules, a radio frequency (RF) circulator, and one or more amplifiers to amplify the signal data received by the one or more antennas and signal data to be transmitted by the one or more antennas. The use of circulator prevents transmitting signals that may collide with each other and cause interference with the communications.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: September 13, 2022
    Assignee: NIKE, Inc.
    Inventors: Shannon Atkinson, Holli Pheil
  • Patent number: 11411540
    Abstract: A power amplifier is disclosed for amplifying an input signal and providing an amplified signal to a load at a junction node. The power amplifier comprises a splitter network, a carrier amplifier path and a peaking amplifier path. The peaking amplifier path comprises a first impedance transformer coupled between a peaking output matching network and the junction node to enhance the off-state impedance of the peaking amplifier. The carrier amplifier path comprises a second impedance transformer coupled between a carrier output matching network and the junction node.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: August 9, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Zhancang Wang, Dan Yan
  • Patent number: 11349569
    Abstract: A transmitter, receiver and transceiver system that may be used for both transmitting and receiving modulated signals are disclosed. The system includes an Electrical-to-Optical (E2O) converter that receives a Radio Frequency (RF) signal and transmits an optical signal and/or an Optical-to-Optical (O2O) that performs a wavelength translation from one wavelength to another wavelength. The Electrical-to-Optical (E2O) converter includes a vapor cell that converts the RF signal to an optical signal.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 31, 2022
    Assignee: RAYTHEON COMPANY
    Inventors: Gary M. Graceffo, Andrew Kowalevicz, Benjamin P. Dolgin
  • Patent number: 10973132
    Abstract: An RF module includes a switch IC having connection electrodes on a first main face and connection electrodes on a second main face; a mounting substrate which has a first mounting face at the first main face side and a second mounting face at the second main face side and in which the switch IC is mounted; signal lines for a band A, which are formed at the first mounting face side of the mounting substrate; signal lines for a band B, which are formed at the second mounting face side of the mounting substrate; a band A filter; and a band B filter. Among the band A filter and the band B filter, only the band A filter is mounted on the first mounting face and only the band B filter is mounted on the second mounting face.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 6, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hironori Chikita
  • Patent number: 10938437
    Abstract: A radio communication apparatus includes: a first duplexer, configured to receive a first carrier aggregation signal from a third switch, filter the first carrier aggregation signal to divide the first carrier aggregation signal into a first carrier signal and a second carrier signal, input the first carrier signal to a first switch, and input the second carrier signal to a second switch. The first carrier signal and the second carrier signal are downlink signals. The apparatus further includes: a radio frequency unit, configured to receive the first carrier signal from the first switch, receive the second carrier signal from the second switch, and demodulate the first carrier signal and the second carrier signal.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 2, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhigang Liu, Shanqing Zeng, Shutian Yuan
  • Patent number: 10855115
    Abstract: A method and device for wireless power transfer provide the ability for concurrent power transfer on two widely separated bands. A wireless power transmitting device includes two coils respectively configured for transmission at two separate wireless power transmission frequencies. A dedicated current or voltage driver is provided for each of said two coils. A controller causes the current or voltage drivers to selectively or concurrently generate an AC magnetic field at either of the frequencies or both frequencies. A method includes concurrently driving two coils arranged with respect to each other to reduce losses at two separate wireless power transmission frequencies while suppressing eddy currents in the path of one of the two coils.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: December 1, 2020
    Assignee: The Regents of the University of California
    Inventors: Patrick Mercier, Dukju Ahn
  • Patent number: 10715199
    Abstract: Methods and devices for streamlining phase and amplitude calibration and linearization in RF transceiver circuits including a plurality of switchable transmit and receive processing paths is presented. According to one aspect, switchable feedback paths are provided that can selectively feedback a portion of a transmitted RF signal or a test RF signal for use in the calibration. According to another aspect, the switchable feedback paths include combination of switches and couplers to selectively combine feedback from one or more of the switchable feedback paths. According to another aspect, the switchable feedback paths reuse portions of the receive paths of the plurality of switchable transmit and receive processing paths. The switchable feedback paths can be used to provide a combined feedback RF signal based on one or more transmitted RF signals that can be used as a digital pre-distortion feedback for linearization of the one or more transmitted RF signals.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: July 14, 2020
    Assignee: PSEMI CORPORATION
    Inventor: Donald Felt Kimball
  • Patent number: 10715194
    Abstract: A device includes a frequency multiplier circuit to receive a base frequency signal, multiply the base frequency signal, and output the multiple of the base frequency signal, and includes an offset frequency generator, including at least one logic gate, to receive the multiple of the base frequency signal and output an offset frequency signal from the at least one logic gate combination. A mixing circuit receives the offset frequency signal and a digital data signal, converts the digital data signal into an analog representation of the digital data signal, and mixes the offset frequency signal and the analog representation of the digital data signal to produce a mixed signal. The device yet further includes a power amplifier to amplify the mixed signal and output the amplified mixed signal as an output frequency signal of the device.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: July 14, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Debapriya Sahu, Srinivas Venkata Veeramreddi, Raghu Ganesan
  • Patent number: 10693214
    Abstract: A mobile terminal is provided including a display unit; a middle frame including a supporting unit that supports a rear surface of the display unit with a side portion around the supporting portion; a main board at a rear surface of the middle frame including a ground; a first wireless communication unit in the main board to transceive a first signal; a second wireless communication unit in the main board to transceive a second signal; and a rear case covering a rear surface of the main board, where the side portion includes a plurality of conductive members with ends divided into slits and the plurality of the conductive members includes a common antenna electrically connectable with the first and second wireless communication units to receive the first and second signals such that the mobile terminal receives different signals with antennas for LTE and 5G communication arranged in a limited space.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 23, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Dongjin Kim, Yunmo Kang, Youngbae Kwon, Yeomin Youn, Jihun Ha
  • Patent number: 10667156
    Abstract: A base station (200) according to an embodiment performs radio communication with a radio terminal (100). The base station transmits a reference signal to the radio terminal with a specific polarized wave, receives, from the radio terminal, polarized wave adjustment information generated by using the reference signal, adjusts a polarized wave based on the specific polarized wave by using the polarized wave adjustment information, and transmits an information signal to the radio terminal with the adjusted polarized wave.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 26, 2020
    Assignee: KYOCERA Corporation
    Inventors: Fangwei Tong, Atsuhisa Inakoshi, Hiroyuki Urabayashi, Chiharu Yamazaki, Kugo Morita
  • Patent number: 10523264
    Abstract: A radio frequency switch circuit with improved harmonic suppression and low insertion loss has an antenna port and a plurality of signal ports. A plurality of transistor switch circuits, are connected to a respective one of the plurality of signal ports and to the antenna port. Each of the transistor switch circuits has a transistor, which in an off state, together with a harmonic suppression capacitor and a parallel inductor both connected thereto, define a tank circuit that suppresses RF signals applied to the corresponding transistor switch circuit from a different one of the transistor switch circuits. The harmonic suppression capacitor is tuned to distribute large signal voltage swings in the RF signal amongst parasitic diodes of the transistor.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: December 31, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: Huan Zhao, Qiang Li
  • Patent number: 10484038
    Abstract: Methods and devices for streamlining phase and amplitude calibration and linearization in RF transceiver circuits including a plurality of switchable transmit and receive processing paths is presented. According to one aspect, switchable feedback paths are provided that can selectively feedback a portion of a transmitted RF signal or a test RF signal for use in the calibration. According to another aspect, the switchable feedback paths include combination of switches and couplers to selectively combine feedback from one or more of the switchable feedback paths. According to another aspect, the switchable feedback paths reuse portions of the receive paths of the plurality of switchable transmit and receive processing paths. The switchable feedback paths can be used to provide a combined feedback RF signal based on one or more transmitted RF signals that can be used as a digital pre-distortion feedback for linearization of the one or more transmitted RF signals.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: November 19, 2019
    Assignee: PSEMI CORPORATION
    Inventor: Donald Felt Kimball
  • Patent number: 10485023
    Abstract: Certain aspects of the present disclosure provide techniques for payload-less physical uplink measurement indication channel (PUMICH) design for uplink based mobility. According to certain aspects, a method of wireless communication by a base station (BS) is provided. The method generally includes selecting a first set of random access procedure (RACH) sequences from a second set of RACH sequences, wherein the second set of RACH sequences comprises a pruned set of RACH sequences, and wherein at least some of the first set of RACH sequences selected for a first user equipment (UE) is also available for selection for a second UE, and transmitting the selected first set of RACH sequences to a UE in response to a request from the UE.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: November 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Kambiz Azarian Yazdi, Haitong Sun, Tingfang Ji, Wanshi Chen, Hao Xu, Heechoon Lee, Hung Ly
  • Patent number: 10407050
    Abstract: A vehicle includes a first electric machine configured to generate low-voltage power. The vehicle includes a second electric machine configured to generate high-voltage power. The vehicle includes a power converter configured to convert high-voltage power generated by a second electric machine to low-voltage power. The vehicle includes a controller programmed to, responsive to a low-voltage power demand exceeding a limit of the power converter, operate the first electric machine and the power converter to satisfy the demand, and otherwise, responsive to the power converter being operational, operate only the power converter to satisfy the demand.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: September 10, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Hosam Atala, Mark J. Ferrel
  • Patent number: 10374669
    Abstract: Disclosed are antenna systems and related methods. An antenna system includes a plurality of near-end electromagnetic (EM) radiating elements, a tunable medium, and control circuitry. The tunable medium is positioned relative to the plurality of near-end EM radiating elements and a plurality of far-end EM radiating elements to scatter EM radiation transmitted between the plurality of near-end EM radiating elements and the plurality of far-end EM radiating elements. The control circuitry includes a controller operably coupled to the tunable medium. A method includes modifying EM properties of the tunable medium to modify the EM radiation transmitted between the plurality of near-end EM radiating elements and the plurality of far-end EM radiating elements.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: August 6, 2019
    Assignee: Elwha LLC
    Inventors: Clarence T. Tegreene, Yaroslav A. Urzhumov
  • Patent number: 10236932
    Abstract: Methods and apparatus for transmitting signals that are magnetically latched at a receiver. In embodiments, a signal isolator comprises a transmitter and a receiver on separate die. Signal disruptions may be minimized. In embodiments, the transmitter and/or receiver can be monitored for proper operation.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: March 19, 2019
    Assignee: Allegro MicroSystems, LLC
    Inventor: Robert A. Briano
  • Patent number: 10200073
    Abstract: One example described herein includes a launchable communications device. The device includes an electronic payload comprising a communication system configured to receive a first communications signal and to transmit a second communications signal along a communications path between a first communication station and a second communication station. The device also includes deployment equipment configured to deploy the launchable communications device and to sustain a deployment state of the launchable communications device with respect to a predetermined operational environment. The device further includes a rigid housing configured to substantially enclose the electronic payload and the conveyance equipment prior to and during at least a portion of deployment of the launchable communications device to the predetermined operational environment.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: February 5, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Peter Bennett Houser, Mary Anne Lorraine Domm, Charles Jackson Nesbitt, IV
  • Patent number: 10129915
    Abstract: A wireless communication system, in some embodiments, comprises: a receiver; one or more tunable elements, coupled to the receiver, to adjust an impedance of the system; and a processor, coupled to the one or more tunable elements, to tune said one or more tunable elements based on the strength of a received signal.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 13, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Mohammad-Reza Nezhad-Ahmadi, Andrew Kuikman
  • Patent number: 10050662
    Abstract: A radio frequency switch circuit with improved harmonic suppression and low insertion loss has an antenna port and a plurality of signal ports. A plurality of transistor switch circuits, are connected to a respective one of the plurality of signal ports and to the antenna port. Each of the transistor switch circuits has a transistor, which in an off state, together with a harmonic suppression capacitor and a parallel inductor both connected thereto, define a tank circuit that suppresses RF signals applied to the corresponding transistor switch circuit from a different one of the transistor switch circuits. The harmonic suppression capacitor is tuned to distribute large signal voltage swings in the RF signal amongst parasitic diodes of the transistor.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: August 14, 2018
    Assignee: Skyworks Solutions, Inc.
    Inventors: Huan Zhao, Qiang Li
  • Patent number: 9954399
    Abstract: Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near-field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency. The receive antenna extracts energy from a coupling between the two antennas. Signaling from the receive antenna to the transmit antenna is performed by generating a first power consumption state for the receive antenna to signal a first receive signal state and generating a second power consumption state for the receive antenna to signal a second receive signal state. Signaling from the transmit antenna to the receive antenna is performed by enabling the resonant frequency on the transmit antenna to signal a first transmit signal state and disabling the resonant frequency on the transmit antenna to signal a second transmit signal state.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: April 24, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Stanley Slavko Toncich, William Henry Von Novak, III
  • Patent number: 9935677
    Abstract: Devices and methods are disclosed, related to high power diode switches. In some embodiments, a radio-frequency switch circuit can include a first switchable path implemented between a pole and a first throw, the first switchable path including one or more PIN diodes, and a second switchable path implemented between the pole and a second throw, the second switchable path including one or more PIN diodes. The radio-frequency switch circuit can further include a switchable shunt path implemented between the second throw and a ground, the switchable shunt path including at least one shunt PIN diode and a capacitance between the second throw and the at least one shunt PIN diode. The pole can be an antenna port, and the first and second throws can be transmit and receive ports, respectively.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: April 3, 2018
    Assignee: Skyworks Solutions, Inc.
    Inventors: Richard Mark Puente, Stephen Richard Moreschi, Shuping Zhang
  • Patent number: 9854539
    Abstract: A radio communication device including a memory that stores information on a strength of interference between a beam output by a first base station and a beam output by a second base station for each of a plurality of combinations, each of the plurality of combinations including at least one of a plurality of beams output by the first base station and at least one of a plurality of beams output by the second base station, emitting directions of each of the plurality of beams output by the first base station being different each other, emitting directions of each of the plurality of beams output by the second base station being different each other, and a processor configured to identify one or more combinations having the interference strength higher than a threshold, and assign different radio resources to each of beams included in the identified one or more combinations.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 26, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Dai Kimura
  • Patent number: 9743406
    Abstract: Techniques for resource block allocation in a multi-user MIMO High Efficiency WLAN system are provided. Specifically, teachings that when taken alone or together, provide a device or a group of devices with an improved resource allocation for the reduction of usable tone waste, are presented. The present disclosure includes a system that provides a user with a technique allocating data tones prior to the encapsulation unit or overhead tones on a resource block unit. Further, the total allocated bandwidth can be reduced prior resource allocation to overcome modulation and coding scheme downgrading caused by severe puncturing. Alternatively, only band edge basic resource blocks are reduced to account for overhead tones which largely reside on band edges.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 22, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Xiaogang Chen, Qinghua Li, Robert Stacey, Yuan Zhu
  • Patent number: 9634716
    Abstract: Enhanced granularity operational parameters adjustment of components and modules in a multi-band, multi-standard communication device. For supporting two-way communications, a communication device includes receiver and transmitter modules. Each module includes various components that are configurable and/or programmable based on a protocol and band pair by which the communication device is operating. The communication device is a multi-protocol and multi-band capable communication device capable to operate in accordance with any one protocol and band at a first time and another protocol and band at a second time. The various components within each of the receiver and transmitter modules can be adjusted using one or more operational parameters. In some instances, a given component can be controlled by more than one operational parameter. Alternatively, certain components are controlled only one operational parameter.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: April 25, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd
    Inventors: Nikolaos C. Haralabidis, Theodoros Georgantas
  • Patent number: 9507979
    Abstract: A system and method that combines RFID tag reader circuitry and a touch sensor, wherein the system and method may reduce power consumption of a battery powered system by detecting the presence of an RFID tag by using a lower power consumption touch sensor instead of scanning for the RFID tag by using higher power RFID tag detection and reading circuitry, controlling activation and deactivation of the RFID tag detection and reading circuitry when the touch sensor has detected the presence of the RFID tag, and reconfiguring sensor electrodes so that the electrodes may form a touch sensor or an antenna as needed.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 29, 2016
    Assignee: CIRQUE CORPORATION
    Inventors: Keith L. Paulsen, Andrew Paulsen
  • Patent number: 9480024
    Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 25, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Jae Hoon Chung, Hyun Soo Ko, Bin Chul Ihm, Yeong Hyeon Kwon
  • Patent number: 9450665
    Abstract: A diversity receiver capable of receiving a CDMA system (e.g., a W-CDMA system) and a TDMA system (e.g., a GSM system), with receive diversity for at least one system, is described. W-CDMA is often referred to as UMTS. In one design, the diversity receiver includes a first receiver for GSM and a second receiver for UMTS. The first receiver may be implemented with one receiver design, may be spec-compliant for GSM, and may also support UMTS. The second receiver may be implemented with another receiver design, may be spec-compliant for UMTS, and may also support GSM. The first receiver may include a lowpass filter having a bandwidth that is adjustable for GSM and UMTS. The second receiver may include a bandpass filter used to attenuate a transmit frequency range for UMTS. Each receiver may include circuit blocks that are used for both GSM and UMTS.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: September 20, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Wesley Alan Sampson, Aristotele Hadjichristos, Gurkanwal S Sahota
  • Patent number: 9439152
    Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: September 6, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Jae Hoon Chung, Hyun Soo Ko, Bin Chul Ihm, Yeong Hyeon Kwon
  • Patent number: 9396426
    Abstract: Techniques that enable a device to advertise its mode of operation using an RFID tag attached to the device. Techniques are provided for programmatically controlling an RFID tag. An RFID tag attached to a device is programmatically enabled or disabled depending upon the mode(s) of operation of the device. The RFID tag is able to transmit a signal when enabled and not able to transmit a signal when disabled. Using such a controllable RFID tag, a device can efficiently indicate or advertise its mode of operation to an RFID reader or sensor.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: July 19, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kurt Piersol, Ken Gudan
  • Patent number: 9351285
    Abstract: A convergence property as ability of removing inter-user interference of turbo equalization is improved in case of using a transmission method in which overlapping of a part of spectrum is allowed among a plurality of users.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 24, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Jungo Goto, Hiroki Takahashi, Osamu Nakamura, Kazunari Yokomakura, Yasuhiro Hamaguchi
  • Patent number: 9326320
    Abstract: Systems and methods are provided for an antenna switch module (300) for an electronic device (302) including wireless communication circuitry (308) and an antenna (304) configured to transmit and receive signals over a plurality of frequency bands. The antenna switch module may include a plurality of antenna switches (310, 312) positioned in series and configured to pass signals between the antenna and wireless communication circuitry and to selectively operate in one of the bands. The first antenna switch (310) may include a plurality of pins (314) arranged in a first configuration, and the second antenna switch (312) may include a plurality of pins (316) arranged in a second configuration that is a mirror image of the first configuration. The antenna switch module may further include a plurality of non-overlapping signal paths (318) configured to selectively deliver signals between the antenna switches, each signal path being associated with a respective band.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: April 26, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Soo Won Hong, Ik Hee Park, Benjamin O White
  • Patent number: 9318805
    Abstract: An apparatus that employs a directional antenna system updates a beam pattern table that includes entries corresponding to each of the other apparatuses with which the apparatus communicates. For example, for each of the other apparatuses, the beam pattern table may specify the antenna weights to be used to provide a quasi-omni-directional beam pattern, a sector level beam pattern, and a refined beam pattern when communicating with that other apparatus. In some aspects, the beam pattern table includes one or more characteristics associated with each of the beam patterns. These characteristics may be used in conjunction with a beam search criterion to trigger updating of the beam pattern table.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: April 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: Zhanfeng Jia
  • Patent number: 9270347
    Abstract: A system and method of receiving a channel state information reference signal (CSI-RS) is presented. At a user equipment, a first CSI-RS transmitted from a base station is received. In some implementations, the first CSI-RS is transmitted at a first periodicity using a first set of antenna ports. At the user equipment, a second CSI-RS transmitted from the base station is received. In some implementations, the second CSI-RS is transmitted at a second periodicity using a second set of antenna ports. At least one of the first CSI-RS and the second CSI-RS is used to perform channel measurement.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 23, 2016
    Assignee: BlackBerry Limited
    Inventors: Mo-han Fong, Dongsheng Yu, Hua Xu, Robert Novak, Shiguang Guo, Zhijun Cai, Youn Hyoung Heo
  • Patent number: 9246722
    Abstract: A device, which provides a differential output signal having a first output signal component and a second output signal component based on a plurality of input signals, includes a pair of signal sources and a controller. The pair of signal sources includes a first activatable signal source for providing the first output signal component and a second activatable signal source for providing the second output signal component. The controller is operably coupled to the pair of signal sources and is configured to activate either the first signal source or the second signal source of the pair of signal sources depending on the plurality of input signals.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 26, 2016
    Assignee: Intel Deutschland GmbH
    Inventors: Bernd-Ulrich Klepser, Martin Simon
  • Patent number: 9196945
    Abstract: The disclosure describes a dual hybrid duplexer including two hybrid couplers, two intra-filters, a tunable isolation load, and a phase shifter. The phase shifter may be located at the isolation port. The phase shifter may be located at the antenna port. In one embodiment, a dual hybrid duplexer includes two hybrid couplers, two intra-filters, a tunable isolation load, a first phase shifter located at the isolation port, and a second phase shifter located at the antenna port. The first and second phase shifters have a difference of 90 degrees (plus or minus 10 degrees).
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: November 24, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: Nadim Khlat, Marcus Granger-Jones, Ruediger Bauder
  • Patent number: 9172440
    Abstract: An antenna device of a mobile terminal for enabling to receive a wireless signal of a new frequency band by appropriately connecting a plurality of antennas through a switch is provided. The antenna device includes a plurality of communication units for transmitting and receiving a wireless signal of a plurality of frequency bands through a plurality of antennas, a plurality of switches for turning on/off an electrical connection between the plurality of antennas and the plurality of communication units, and a controller for controlling the plurality of switches to turn off an electrical connection between the plurality of antennas and the plurality of communication units.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: October 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sungryong Park
  • Patent number: 9172422
    Abstract: A communication system has multiple paths including one or more Tx paths for processing Tx signals and one or more Rx paths for processing Rx signals, one or more PAs coupled respectively to the one or more Tx paths for amplifying the Tx signals, one or more LNAs coupled respectively to the one or more Rx paths for amplifying the Rx signals, one or more Tx filters coupled respectively to the one or more Tx paths for filtering the Tx signals, one or more Rx filters coupled respectively to the one or more Rx paths for filtering the Rx signals, and an antenna comprising multiple feeds coupled to the multiple paths, respectively, to provide physical separation of the multiple paths from each other. Physical separation among the multiple paths and impedance matching provides isolation among the multiple paths, and relaxes rejection considerations on the filters.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: October 27, 2015
    Assignee: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Alexandre Dupuy
  • Patent number: 9118367
    Abstract: Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated. In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Ray (Ramon) Gomez, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Reza Rahman Khan
  • Patent number: 9077388
    Abstract: A system for near field communication (NFC) and frequency modulation (FM) communication includes a NFC microchip, a FM microchip, a control microchip, a switch module. The switch module switches between the NFC matching module and the FM matching module under control of the control microchip. A NFC matching module electronically connected to the antenna modulates working frequency of the NFC microchip to match with an antenna. A FM matching module electronically connected to the antenna modulates working frequency of the FM microchip to match with the antenna.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: July 7, 2015
    Assignee: Chi Mei Communication Systems, Inc.
    Inventor: Yu-Chang Kao
  • Patent number: 9042949
    Abstract: A mobile wireless communications device may include a portable housing, a circuit board carried by the portable housing, a wireless communications circuit carried by the circuit board, and an audio circuit carried by the circuit board. The mobile wireless communications device may further include an antenna assembly including an antenna carrier frame coupled to the circuit board and defining a cavity therein, and an antenna element carried on the antenna carrier frame and having a plurality of spaced apart signal feed points coupled to the wireless communications circuit. In addition, an audio transducer may be carried within the cavity of the antenna carrier frame and coupled to the audio circuit.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 26, 2015
    Assignee: BLACKBERRY LIMITED
    Inventors: Ying Tong Man, Yihong Qi, Joshua Kwan Ho Wong
  • Patent number: 9042844
    Abstract: A transceiver includes: a power amplifying circuit arranged to generate differential output signals during a transmitting mode of the transceiver; a balance-unbalance circuit arranged to convert the differential output signals into a single-ended output signal; a switchable matching circuit arranged to receive the single-ended output signal on a signal port of the transceiver during the transmitting mode, and to convert a single-ended receiving signal on the signal port into a single-ended input signal during a receiving mode of the transceiver; and a low-noise amplifying circuit arranged to convert the single-ended input signal into a low-noise input signal during the receiving mode. The power amplifying circuit, the Balun, the switchable matching circuit, and the low-noise amplifying circuit are configured as a single chip.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 26, 2015
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Ti-Ku Yu, Sang Won Son, Chia-Hsin Wu, Tsung-Ming Chen, Wei-Chia Chan
  • Patent number: 9002296
    Abstract: A communication terminal and a driving method thereof are provided. The driving method of a communication terminal includes: forming a transmitting path and an absorption path by controlling a time division duplex (TDD) switch in a transmitting mode to isolate the transmitting path and the receiving path from an absorption path, the transmitting path transmitting a transmitting signal in a wireless scheme, and the absorption path diverged from the transmitting path through a circulator of the TDD switch to block a reflecting signal in the transmitting signal reversely transferred to the transmitting path; processing the transmitting signal through the transmitting path. Because a TDD switch has an isolation function, insertion loss in a transmitting path may be suppressed.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Hyun Su Yoon
  • Patent number: 8989655
    Abstract: A method in which user equipment transmits a signal in a distributed antenna system in which a plurality of antennas is distributed in a cell, comprises the following steps: receiving uplink antenna information from a base station; controlling uplink power on the basis of the uplink antenna information; and transmitting an uplink signal on the basis of the uplink power control, wherein the uplink antenna information indicates a receiving antenna of the base station that receives the uplink signal.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 24, 2015
    Assignee: LG Electronics Inc.
    Inventors: Ji Won Kang, Jin Young Chun, Su Nam Kim, Bin Chul Ihm, Sung Ho Park
  • Patent number: 8989817
    Abstract: Method and apparatus related to implementing and/or utilizing different polarization antennas with different corresponding average transmit power levels are described. Inter-cell interference is mitigated by having different cells with different power relationships between polarizations antennas. For example, a first base station transmits at a high average power level on its vertical polarization antenna and transmits at a low average power level on its horizontal polarization antenna. Concurrently, a second base station, which is adjacent to the first base station, transmits at a low average power level on its vertical polarization antenna and transmits at a high average power level on its horizontal polarization antenna. In some hexagonal deployment schemes a base station has at most two adjacent base stations using the same power level to antenna polarization direction relationship as it is using.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: March 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Xinzhou Wu, Vikram Reddy Anreddy, Junyi Li, Rajiv Laroia
  • Patent number: 8981872
    Abstract: An antenna duplexer includes a transmission filter which operates in a transmission frequency band and has a transmission filter output. A reception filter operates in a reception frequency band and has a reception filter output. An antenna connection is connected to the transmission filter output and a matching element is connected between the antenna connection and the reception filter input. The circuit formed from the transmission filter, reception filter and matching element attenuates transmission signals in a frequency band whose frequencies f are in the interval 0.50*f0<=f<=0.75*f0, where f0 is the mid-frequency of the reception frequency band.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: March 17, 2015
    Assignee: EPCOS AG
    Inventors: Helmut Klamm, Peter Selmeier
  • Patent number: 8977312
    Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: March 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Moon Il Lee, Jae Hoon Chung, Hyun Soo Ko, Bin Chul Ihm, Yeong Hyeon Kwon