Selectively Or Alternately Connected To Receiver Patents (Class 455/277.1)
  • Patent number: 10574336
    Abstract: A system is described where antenna beam steering techniques are implemented to optimize time and frequency channel resources in wireless communication systems where repeaters are used. Beam steering modes of the antenna systems in the repeaters as well as the nodes are optimized to improve system capacity and load balancing. Client devices in a wireless LAN system can be configured to work as repeaters, with the repeaters containing a beam steering capability. The beam steering capability can be implemented in one or multiple nodes and repeaters in the communication system.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: February 25, 2020
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Jeffrey Shamblin
  • Patent number: 10554213
    Abstract: One example includes a digital communications converter. The converter includes at least one analog signal port configured to couple to at least one radiating element associated with an antenna structure coupled to an exterior surface of a vehicle. The at least one analog signal port can be configured to at least one of transmit and receive analog radio frequency (RF) signals respectively to and from the at least one radiating element. The converter also includes a digital interface configured to at least one of receive the analog RF signals or transmit the analog RF signals via the respective at least one analog signal port. The converter is also configured to convert between the analog RF signals and digital communication signals on a digital transmission medium that are at least one of transmitted to the digital communications converter via a digital communications cable and transmitted from the digital communications converter via the digital communications cable.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: February 4, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Peter Bennett Houser
  • Patent number: 10445538
    Abstract: Embodiments of the invention pertain to Radio Frequency Identification (RFID) method and system using an antenna array, an array controller, and control algorithms. Embodiments of the invention can induce strong radio-frequency (RF) excitation, for a given level of radiated RF power, at any point within an arbitrary inhomogeneous medium. For RFID applications, one typical inhomogeneous medium is an ensemble of cases on a pallet. Another typical medium is a warehouse environment having stored goods together with shelving and other material present. An embodiment of the invention is applicable to the process of reading battery-less, or “passive” RFID tags, which rely on incident RF electromagnetic fields established by RFID readers to power the electronic circuitry within the tags.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: October 15, 2019
    Assignee: METRC LLC
    Inventor: Mark H. Smith
  • Patent number: 10439684
    Abstract: An apparatus comprising a first dipole antenna, a beamforming antenna array (BFAA), a first switch coupled to the dipole antenna, a second switch coupled to the BFAA, and a processor coupled to the first switch and the second switch, wherein the processor is configured to select between a multi-input, multi-output (MIMO) antenna configuration and a beamforming configuration by setting the states of the first switch and the second switch.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: October 8, 2019
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Saeid Safavi, Dedi D. Haziza
  • Patent number: 10440587
    Abstract: A vehicle includes a position detector configured to obtain position information on a target vehicle, and a wireless communication unit configured to form a first beam pattern based on the position information on the target vehicle, and communicate with the target vehicle through a radio wave of the first beam pattern. The wireless communication unit reforms the beam pattern according to a position of the target vehicle in order to maintain the communication with the target vehicle.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 8, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Un Kim, Kyunghyun Kang
  • Patent number: 10433310
    Abstract: A vehicle includes a wireless communication unit configured to form a beam pattern for performing wireless communication with a target vehicle, a camera module configured to obtain an image of at least one peripheral vehicle, and a display unit configured to display the image. When the target vehicle is selected based on the displayed image, the beam pattern is formed toward the selected target vehicle.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 1, 2019
    Assignee: Hyundai Motor Company
    Inventors: Sung Un Kim, Kyunghyun Kang
  • Patent number: 10396867
    Abstract: A method for reducing complexity of downlink signal demodulation in a multiuser (MU) multiple-input-multiple-output (MIMO) wireless communication system includes a base station acquiring uplink (UL) channel state information (CSI) of a MIMO channel between the base station and a user equipment (UE), deriving downlink (DL) CSI from the UL CSI, and transmitting orthogonal frequency-division multiplexing (OFDM) radio subframes using MIMO pre-equalization based on the DL CSI. The UE performs downlink reciprocity correction of the OFDM subframes received from the base station using a single complex phasor estimate and performs downlink data demodulation of the downlink reciprocity corrected OFDM subframes without performing additional MIMO equalization.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 27, 2019
    Assignee: National Instruments Corporation
    Inventors: Nikhil U. Kundargi, Karl F. Nieman
  • Patent number: 10375640
    Abstract: A method for switching Bluetooth working modes, an electronic device, and a Bluetooth chip are disclosed. The method includes: executing a first Bluetooth working mode, the first Bluetooth working mode including a working state in which data is normally transmitted and an error state in which data fails to be transmitted; monitoring a first interrupt request signal sent in a second Bluetooth working mode if the first Bluetooth working mode works in the working state; and executing the second Bluetooth working mode and enabling the first Bluetooth working mode to work in the error state if the first interrupt request signal is present.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: August 6, 2019
    Assignee: SMARTECH WORLDWIDE LIMITED
    Inventors: Tony Xie, Yunhe Fu
  • Patent number: 10348524
    Abstract: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: July 9, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuguhide Aoki, Daisuke Takeda, Takahiro Kobayashi, Yasuhiko Tanabe
  • Patent number: 10321463
    Abstract: A wireless adapter front end for an information handling system may comprise a wireless adapter for receiving content via a transceiving antenna configurable to have a plurality of antenna radiation patterns, and a controller. The controller may execute code instructions to receive a trigger input indicating decreased signal strength, measure RSSI variance of the wireless link, measure a rate of mobility of the information handling system determined from accelerometer data or velocity data, identify an allotted training duration time period associated with the rate of mobility and RSSI variance, identify an optimal antenna pattern associated with a highest quality link within the allotted training duration time period, and instruct the transceiving antenna to operate according to the optimal antenna pattern.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: June 11, 2019
    Assignee: Dell Products, LP
    Inventors: Suresh K. Ramasamy, Stephen Shiao
  • Patent number: 10305646
    Abstract: A communication platform such as a spacecraft, airborne platform, or terrestrial line of site wireless platform is provided with adaptive digital beamforming. The satellite digitizes a full spectrum allocation for digital channelization. A channelization engine can determine a particular user or user group associated with an uplink signal. In this manner, the communication platform can apply different processing based on the user or group associated with a signal. For example, the communication platform receives uplink signals associated with a first user group and a second user group in one embodiment. The platform dynamically generates one or more spot beams for the first user group and the second group. The platform discriminates the uplink signals to apply frequency hopping for the downlink frequency channel assignments to the second user group while the downlink frequency channel assignments for the first user group remain fixed.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: May 28, 2019
    Assignee: Space Systems/Loral LLC
    Inventors: William Hreha, David Grybos
  • Patent number: 10284013
    Abstract: A system for enhancing power efficiency of a wireless device is disclosed. In one embodiment, the wireless device includes a transmitter having a transmitter antenna and configured to transmit a signal, as well as an energy receiver having a plurality of energy receiver antenna elements positioned across one or more surfaces of the wireless device. The energy receiver antenna elements are each configured to receive a portion of the signal, convert the portion of the signal into power, and provide the power to one or more components of the wireless device.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: May 7, 2019
    Inventor: Marcellus Chen
  • Patent number: 10243258
    Abstract: A mobile terminal comprises a case; a main board packaged in the case; a signal supply unit packaged on the main board, supplying a radio signal; an antenna radiator packaged in the case, including a conductive material and transmitting and receiving a signal of a first frequency; an antenna tuner packaged in the case, including a conductive material; a feeding line located on the main board, having one end connected with the signal supply unit and the other end connected with the antenna radiator; and a tuning line located on the main board, having one end connected to the feeding line and the other end connected with the antenna tuner, wherein the tuning line and the antenna tuner compensate for impedance of the feeding line and the antenna radiator. The mobile terminal can prevent wireless communication performance from being deteriorated by impedance distorted by an external environment like that a body of a user approaches the antenna radiator.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: March 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventor: Seungmin Woo
  • Patent number: 10237050
    Abstract: A tunable filter reduces the total number of filters used in TDD (Time-Division Duplex) communication circuitry. The communication circuitry may include a tunable filter and a first switch associated with the tunable filter. The tunable filter may include a tuning component and a filtering component. The tuning component may be located with the first switch on a first die. The filtering component may be located in a laminate underneath the first switch. Power amplifiers for amplifying transmission signals may be located on a second die, and the second die may be located on the laminate.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: March 19, 2019
    Assignee: Qorvo US, Inc.
    Inventor: Nadim Khlat
  • Patent number: 10225114
    Abstract: A wireless system, and particularly, a multiple-input multiple-output (MIMO) wireless communication system is disclosed. The wireless system includes a plurality of (re)configurable antennas and a rate-two space coding design for a MIMO system. The MIMO wireless communication system generally includes M (re)configurable antennas configured to independently transmit or broadcast wireless electromagnetic signals having a frequency in the microwave and/or optical ranges, a controller configured to control the (re)configurable antennas, and an encoder configured to encode information onto the wireless electromagnetic signals. The information comprises codewords having N symbols, and the codewords are expressed in an N×M matrix having a non-zero determinant and in which at least one symbol is associated with a coefficient configured to maximize diversity, maximize coding gain and/or reduce channel fading in the MIMO wireless communication system. M and N are each independently an integer of at least 2.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 5, 2019
    Assignees: CSUB Auxillary For Sponsored Programs Administration, The Regents of the University of California
    Inventors: Vida Vakilian, Hani Mehrpouyan, Hamid Jafarkhani
  • Patent number: 10080228
    Abstract: It is realized to transmit a reference signal for channel estimation a predetermined number of times with one signaling.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: September 18, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Wataru Ouchi, Tatsushi Aiba, Shoichi Suzuki
  • Patent number: 10021522
    Abstract: A tracking device for global tracking of objects is provided including a patch package comprised of a flexible material and an electronic circuit embedded within the patch package. The electronic circuit includes a controller, a secured basic input/output (BIOS) system, a memory unit, a radio unit, and an antenna. The radio unit and the antenna transmit the location of the tracking device. The antenna may be a wire antenna or a ball antenna. The flexible material may be sticky such that the tracking device may be affixed to an object. The electronic circuit may also include an affix sensor configured to determine whether the tracking device is affixed to and removed from an object. Methods of tracking objects using tracking device are also provided in which the tracking device is affixed to an object and a transmission is received from the electronic circuit providing location information of the tracking device.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: July 10, 2018
    Assignee: Gopher Protocol Inc.
    Inventors: Danny Rittman, Aliza Schnapp
  • Patent number: 10003361
    Abstract: A method for controlling antennas in a vehicle having an external antenna and an internal antenna includes triggering an eCall service function upon sensing an accident occurrence event, measuring a quality of one or more wireless signals received through the external antenna, comparing the measured quality of the wireless signals with a reference quality value, and selecting one of the external antenna and the internal antenna to be used in the eCall service function based on the results of the step of comparing the measured quality of the wireless signals with the reference quality value. A system of emergency communication of a vehicle is also provided.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: June 19, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Jang Yeol Kim
  • Patent number: 9998961
    Abstract: Apparatus and methods of mobility management include identifying a target cell as an active set candidate. The apparatus and methods further include determining that a trigger adjustment condition exists, wherein the trigger adjustment condition triggers an adjustment of a timing value that indicates a sending time of a target cell add message to a serving cell. Moreover, the apparatus and methods include sending the target cell add message including the target cell to the serving cell based on determining that the trigger adjustment condition exists.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: June 12, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Siddharth Mohan, Rohit Kapoor, Haitong Sun, Sharad Deepak Sambhwani
  • Patent number: 9912050
    Abstract: A radio frequency (RF) circuit for a ring antenna array element includes first and second feed elements, and a conductive element disposed between the first and second feed elements. The first and second feed elements are electrically couplable to a conductive resonator for a frequency band. The first feed element is configured to conduct an electromagnetic current. The conductive element is configured to resonate outside the frequency band to reduce cross-coupling between the first feed element and the second feed element due to the electromagnetic current.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: March 6, 2018
    Assignee: THE BOEING COMPANY
    Inventor: Charles W. Manry, Jr.
  • Patent number: 9900185
    Abstract: A wireless communications receiver includes a receiving unit configured to receive a radio transmission having Doppler distortion and channel noise. Also included is an estimating unit coupled to the receiving unit and configured to determine a noise-abated maximum Doppler frequency estimate for the Doppler distortion. Additionally, the estimating unit is further configured to determine a signal-to-noise ratio (SNR) estimate based on the noise-abated maximum Doppler frequency estimate. In another aspect, a method of operating a wireless communications receiver is provided.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: February 20, 2018
    Assignee: Nvidia Corporation
    Inventor: Badreddine Noune
  • Patent number: 9800317
    Abstract: A method for detecting an electromagnetic signal by an antenna array with pattern diversity and a device for implementing this method is provided. The method according to the invention requires no prior knowledge of the type of signal and can be implanted on an antenna array with pattern diversity.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: October 24, 2017
    Assignee: THALES
    Inventors: Anne Le Meur, Jean-Yves Delabbaye
  • Patent number: 9735828
    Abstract: The invention provides a communication device and a communication method. The communication device with at least a first antenna and a second antenna includes a switch element, a transceiver, and an antenna selection and control module. The switch element is coupled to the first antenna and the second antenna. The transceiver is coupled to the switch element. The antenna selection and control module controls the switch element to switch between the first antenna and the second antenna, such that the first antenna and the second antenna are respectively set as an operating antenna and a non-operating antenna. In one or more busy time periods of the operating antenna, the transceiver measures a first communication quality parameter of the operating antenna. In one or more idle time periods of the operating antenna, the transceiver measures a second communication quality parameter of the non-operating antenna.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 15, 2017
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Jianwei Zhang, Yanqi Wu, Wenze Qu
  • Patent number: 9686052
    Abstract: A communication-line-quality estimating apparatus of which a receiver receives from a transmitter a signal including known signals whose phase relation is known between the transmitter and the receiver. The communication-line-quality estimating apparatus includes a pilot adding unit that cumulatively adds up and averages a power value of a noise component calculated by addition or subtraction in a specified combination of the known signals, a first power calculating unit, a first averaging processing unit, a second power calculating unit that cumulatively adds up and averages a power value of the known signals, a second averaging processing unit, and a power-ratio calculating unit that estimates communication line quality using a noise signal power value input from the first averaging processing unit and a reception signal power value input from the second averaging processing unit.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: June 20, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventor: Masatsugu Higashinaka
  • Patent number: 9525204
    Abstract: A wireless network element is operably couplable to an antenna array for communicating with at least one remote wireless communication unit. The antenna array comprises a plurality of radiating elements where at least one first radiating element of the plurality of radiating elements is arranged to create a radiation pattern in a sector of a communication cell. The wireless network element comprises a receiver arranged to receive and process at least one signal from the at least one remote wireless communication unit via the at least one first radiating element. The wireless network element also comprises a beam scanning module for stepping/sweeping the radiation pattern through the sector of the communication cell, such that at least one signal from the at least one remote wireless communication unit is processed to identify signal parameters representative of incoming signal power and angle of arrival of the received at least one signal.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 20, 2016
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Joe Moore
  • Patent number: 9520837
    Abstract: Pulse shaping biasing circuitry includes square wave generator circuitry and inverse ramp signal generator circuitry. The square wave generator circuitry is coupled between an input node and signal summation circuitry, and is configured to generate a square wave signal. The inverse ramp signal generator circuitry is coupled in parallel with the square wave generator circuitry and configured to generate an inverted ramp signal based on a supply voltage and a temperature. By generating the inverted ramp signal based on the supply voltage and temperature, the pulse shaping biasing circuitry may compensate an RF power amplifier operated in a pulsed mode such that an error vector magnitude thereof is minimized even as the supply voltage provided to the RF power amplifier and the temperature change.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: December 13, 2016
    Assignee: Qorvo US, Inc.
    Inventors: Jinsung Choi, Marcelo Jorge Franco
  • Patent number: 9509396
    Abstract: A low noise block circuit includes a first input signal trace configured to receive a first satellite signal centered at a first frequency; a second signal trace configured to receive a second satellite signal centered at a second frequency; a combiner having a first input connected to the first input signal trace and a second input connected to the second signal trace, and configured to combine the first and second satellite signals to generate and output a combined satellite signal; and an analog-to-digital converter element having a first input coupled to receive the combined satellite signal, and configured to convert the combined satellite signal from an analog signal to a digital signal.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: November 29, 2016
    Assignee: Entropic Communications, LLC
    Inventors: Branislav Petrovic, Tommy Yu, Troy Brandon, Ralph Duncan
  • Patent number: 9479242
    Abstract: A communication network is optimized using modal antenna techniques, wherein a plurality of communication nodes are synchronized with each other along with mobile and fixed wireless communication devices which comprise the user base. With one or more of the communication nodes and wireless communication devices including at least one respective modal antenna, the network is adapted for dynamic optimization of communication links amongst the wireless users. Node to user throughput, node to node throughput, as well as interference characteristics among the nodes and wireless users are each optimized as a network system to increase communication system network capacity and reliability. The multiple radiation patterns provided by the modal antennas provide a parametric for network-level synchronization to improve communication system performance.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: October 25, 2016
    Assignee: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Jeffrey Shamblin
  • Patent number: 9467183
    Abstract: Aspects of the subject disclosure may include, for example, a method for down-converting a long-range communication signal that is wirelessly received via a first antenna of a communication device to extract a first version of a baseband signal, down-converting a short-range communication signal wirelessly received from a second device via a second antenna of the communication device to extract a second version of the baseband signal from the long-range communication signal that can be received at the second device, which is remote from the communication device, via a second antenna. The first version and second version of the baseband signal can be combined to generate an information signal that can be processed. Other embodiments are disclosed.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: October 11, 2016
    Assignees: AT&T Intellectaul Property I, L.P., AT&T Mobility II LLC
    Inventors: Sheldon Kent Meredith, Yuang Lou, Mario Kosseifi
  • Patent number: 9437919
    Abstract: Information equipment according to an embodiment includes a display housing with a display unit, a first radio communication antenna disposed at an end part of the display housing, a second radio communication antenna using a frequency band adjacent to or overlapped with that of the first radio communication antenna, and a third radio communication antenna disposed at an end part between the first and the second radio communication antennas, and uses a frequency band not adjacent to nor overlapped with those of the first and the second radio communication antennas.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: September 6, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi Shimasaki, Masao Teshima, Satoshi Mizoguchi, Anwar Sathath, Toshiyuki Hirota
  • Patent number: 9425883
    Abstract: Systems for supporting multi-channel dynamically controlled diversity reception in wireless communications include a plurality M of receivers coupled to M antennas and configured handle N communication channels wherein N?M?(2*N?1) and N channel state machines configured to dynamically allocate multiple channels of the N channels to the M receivers to support dynamic switched diversity for multi-channel dynamically controlled reception. Each channel state machine is configured to control the operation of each receiver. Arbitration is performed between channel state machines when such channel state machines work concurrently. In some embodiments, a lock state machine inside each channel state machine accelerates the locking time of a receiver based on at least one parameter received from another receiver.
    Type: Grant
    Filed: September 20, 2014
    Date of Patent: August 23, 2016
    Assignee: Autotalks LTD
    Inventor: Onn Haran
  • Patent number: 9418333
    Abstract: A synapse array based on a static random access memory (SRAM), a pulse shaper circuit, and a neuromorphic system are provided. The synapse array includes a plurality of synapse circuits. At least one synapse circuit among the plurality of synapse circuits includes at least one bias transistor and at least two cut-off transistors, and the at least one synapse circuit is configured to charge a membrane node of a neuron circuit connected with the at least one synapse circuit using a sub-threshold leakage current that passed through the at least one bias transistor.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 16, 2016
    Assignees: Samsung Electronics Co., Ltd., Postech Academy-Industry Foundation
    Inventors: Jun Seok Kim, Jae Yoon Sim, Hyun Surk Ryu, Hwasuk Cho
  • Patent number: 9397731
    Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: July 19, 2016
    Assignee: OPTIS CELLULAR TECHNOLOGY, LLC
    Inventors: Karl J. Molnar, Kambiz Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
  • Patent number: 9392547
    Abstract: A diversity receiver includes a first receiving channel and a second receiving channel. The receiver also includes a baseband processor that computes a difference between the received signal strengths of the signals received from the first and second channels, wherein the processor disables the signal received from the second channel if the difference is greater than a first threshold value and a BER associated with the second receiving channel is greater than a BER threshold value, and disables the signal received from the first channel if the difference is less than the negative first threshold value and the bit error rate (BER) associated with the first channel is greater than the BER threshold value. The receiver further includes a bypass circuit coupled to an input of an amplifier and a RSSI circuit that provides a conduction path between the input and a ground when the RSSI circuit detects a blocker signal.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: July 12, 2016
    Assignee: MaxLinear, Inc.
    Inventors: Seung-Chul Hong, Sheng Ye, Tienyu Chang, Anand K. Anandkumar
  • Patent number: 9369163
    Abstract: A system for enhancing power efficiency of a wireless device is disclosed. In one embodiment, the wireless device includes a transmitter having a transmitter antenna and configured to transmit a signal, as well as an energy receiver having a plurality of energy receiver antenna elements positioned across one or more surfaces of the wireless device. The energy receiver antenna elements are each configured to receive a portion of the signal, convert the portion of the signal into power, and provide the power to one or more components of the wireless device.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 14, 2016
    Inventor: Marcellus Chen
  • Patent number: 9344163
    Abstract: Embodiments of the present invention disclose a method and a terminal for implementing multi-antenna transmission. The method includes: setting a group of low-correlation antennas and a group of high-correlation antennas, where the correlation between antennas in the group of low-correlation antennas is lower than the correlation between antennas in the group of high-correlation antennas; receiving a response message carrying a transfer mode switching instruction fed back by an evolved NodeB; and extracting the transfer mode switching instruction from the response message fed back by the evolved NodeB; if the transfer mode switching instruction is corresponding to a first transfer mode, switching to the group of low-correlation antennas to transmit signals; and if the transfer mode switching instruction is corresponding to a second transfer mode, switching to the group of high-correlation antennas to transmit signals.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: May 17, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Lei Han
  • Patent number: 9337943
    Abstract: A load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical load includes a plurality of energy controllers. Each energy controller is operable to control at least one of the electrical loads. The load control system also includes a first broadcast controller that has a first antenna and a second antenna. The first antenna is arranged in a first position and the second antenna is arranged in a second position that is orthogonal to the first position. The broadcast controller is operable to transmit a first wireless signal via the first antenna and a second wireless signal via the second antenna. Each of the energy controllers is operable to receive at least one of the first and second wireless signals, and to control the respective load in response to the received wireless signal.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 10, 2016
    Assignee: LUTRON ELECTRONICS CO., INC.
    Inventors: Donald Mosebrook, Timothy S. Majewski, Gregory Altonen, Benjamin F. Bard
  • Patent number: 9312938
    Abstract: The present invention is directed to improvements for distributed antenna systems and more particularly to methods and systems for improving uplink communications. In one embodiment, Aggregation Point Noise Blocking provides for blocking or filtering the noise contributed by one or more of the branches coupled to an aggregation point that are not carrying the signal from a particular terminal. Signal activity from a given terminal on a particular branch can be identified and that information can be used to selectively block or filter the signal noise contributed by the other branches to an aggregation point. The selective blocking or filtering can also include an attenuation function to attenuate the signal and provide dynamic range smoothing. In another embodiment the signal can be regenerated to produce a signal that has a restored or very high SNR.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: April 12, 2016
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Yair Oren, Ofer Saban
  • Patent number: 9276656
    Abstract: The present invention is directed to improvements for distributed antenna systems and more particularly to methods and systems for improving uplink communications. In one embodiment, Aggregation Point Noise Blocking provides for blocking or filtering the noise contributed by one or more of the branches coupled to an aggregation point that are not carrying the signal from a particular terminal. Signal activity from a given terminal on a particular branch can be identified and that information can be used to selectively block or filter the signal noise contributed by the other branches to an aggregation point. The selective blocking or filtering can also include an attenuation function to attenuate the signal and provide dynamic range smoothing. In another embodiment the signal can be regenerated to produce a signal that has a restored or very high SNR.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: March 1, 2016
    Assignee: CORNING OPTICAL COMMUNICATIONS WIRELESS LTD
    Inventors: Yair Oren, Ofer Saban
  • Patent number: 9240830
    Abstract: An antenna swapping method may include tuning respective signals provided to first and second antennas in a portable electronic device to at least one frequency band. The method may also include connecting the first antenna to an uplink signal path that is for transmissions through the first and second antennas, and performing impedance matching for the first antenna. The method may further include comparing a real-time performance characteristic of the first antenna with a real-time performance characteristic of the second antenna. The method may additionally include, responsive to determining that the second antenna has a stronger real-time performance characteristic than the first antenna while the first antenna is connected to the uplink signal path, swapping from the first antenna to the second antenna by connecting the second antenna to the uplink signal path and disconnecting the first antenna from the uplink signal path, and performing impedance matching for the second antenna.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: January 19, 2016
    Assignee: Sony Corporation
    Inventors: Rickard Ljung, Thomas Bolin, Zhinong Ying, Erik Bengtsson
  • Patent number: 9231686
    Abstract: Dynamic antenna switching based on weighted signal to noise ratio (SNR). A wireless device may include multiple antennas. SNR at each active antenna may be calculated. An antenna-specific weight may be applied to each antenna's SNR. The antenna-specific weights may further be radio specific and/or transmit or receive specific in some cases. Antenna selection (possibly just for a specific radio and/or for transmit or receive operations, depending on the specificity of the antenna weights), including potentially switching which antenna is used, may be based on the resulting weighted SNR values for each antenna. If the antenna-specific weights are radio specific and/or transmit or receive operation specific, the method may be performed multiple times with different antenna-specific weights to select antenna(s) for different radios and/or for other operations.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 5, 2016
    Assignee: Apple Inc.
    Inventors: Xiaojun Chen, Peter M Agboh, Indranil S Sen, Hsin-Yuo Liu, Vusthia Sunil Reddy, Diego C Hernandez, Digvijay A Jadhav, Mohit Narang, Ruben Caballero
  • Patent number: 9077419
    Abstract: Methods and apparatus for selecting one or more suitable antennas for use during power-up/initial acquisition and out of service modes are disclosed. In some examples, initial system acquisition may be performed for a particular receive circuit utilizing a selected one of a first antenna or a second antenna, based on a channel characteristic, such as an automatic gain control (AGC) value corresponding to a received signal energy utilizing either of the antennas. In another example, initial system acquisition utilizing either a receive diversity determination algorithm or an antenna switching determination algorithm may be performed based on a channel characteristic, such as an AGC value corresponding to a received signal energy utilizing one of the antennas coupled to one of the receive circuits.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: July 7, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Troy Russell Curtiss, Vamsee Krishna Somavarapu, Gregory Robert Lie, Jun Hu, Alexey Semjonovs, Sundararaman Kunchithapatham, Stanley Suyi Tsai
  • Patent number: 9070974
    Abstract: This disclosure provides systems, methods, and apparatus for antenna switching for simultaneous communication. One apparatus embodiment includes a plurality of antennas including a first antenna, a second antenna, and a third antenna. The wireless communication apparatus further includes a plurality of receive circuits including a first receive circuit, at least two of the plurality of receive circuits each configured to simultaneously receive, with respect to the other, wireless communications from a different one of at least two networks relating to different radio access technologies. The wireless communication apparatus further includes a controller configured to selectively switch the first receive circuit from receiving wireless communications via the first antenna to receive wireless communications via the second antenna based on one or more performance characteristics of at least one of the first antenna and the second antenna. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 30, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Hu, Rashid Ahmed Akbar Attar, Gregory Robert Lie, Daniel Fred Filipovic, Hongbo Yan, Ning He
  • Publication number: 20150147993
    Abstract: Technologies and implementations for providing high-speed wireless communication are generally disclosed.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 28, 2015
    Inventor: Xuefeng Yin
  • Publication number: 20150140943
    Abstract: A multiple antenna receiver receives a wideband signal containing two or more sub-signals of interest. The receiver may be selectively configured to receive all sub-signals of interest with all antennas, or to receive different sub-signals of interest with different antennas.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Inventor: Ali S. Khayrallah
  • Patent number: 9020081
    Abstract: A diversity control method and a wireless communication apparatus which are capable of saving time and electricity consumed for diversity control if an approximation pattern approximating to a synchronization pattern appears in a reception signal during acquisition of the reception strength of every antenna by selecting any one of a plurality of antennas as a receiving antenna in every selection cycle, detection operation of a synchronization signal is continued regardless of the above described selection cycle.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: April 28, 2015
    Assignee: Lapis Semiconductor Co., Ltd.
    Inventor: Takeshi Ichikawa
  • Patent number: 8989677
    Abstract: The invention is related to an apparatus comprising: at least one definition unit configured to define signal characterizing parameters of a transmission; and at least one routing unit configured to route the transmission to at least one transmission path based on the signal characterizing parameters, the at least one transmission path arranged to convey the transmission to at least one antenna.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: March 24, 2015
    Assignee: Nokia Corporation
    Inventors: Marko Eero Tapani Leinonen, Seppo Olavi Rousu, Juha Pentti Tapio Valtanen
  • Patent number: 8983547
    Abstract: An apparatus and a method for reducing delay during beam alignment in a beamformed wireless communication system are provided. A method for selecting a beam pattern in a Base Station (BS) includes determining whether a direction finding signal is received through each time interval of a direction finding channel, transmitting information of whether the direction finding signal is received with respect to each time interval of the direction finding channel, changing a receive beam pattern and receiving a random access signal from a Mobile Station (MS) with at least one transmit beam pattern over a random access channel, and selecting one of transmit beam patterns of the MS and one of receive beam patterns of the BS according to the random access signal.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Su-Ryong Jeong, Tae-Young Kim, Chi-Woo Lim, Hyun-Kyu Yu
  • Patent number: 8977221
    Abstract: A selecting apparatus for receiving antennas of a Multiple Input Multiple Output wireless system and a method thereof are disclosed. The method for selecting antennas includes the following steps. Select a set of receiving antenna sequentially by a selective and control unit so as to receive an input data. Then a signal processing module deals with the input data to generate output data sets. An operation unit processes at least one of the multiple sets of output data for generating a detection data that is sent to a determining unit. According to the detection data, the determining unit generates a control signal that is sent to the selective and control unit for driving the selective and control unit to select a set of antenna to be used.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: March 10, 2015
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yu-Nan Lin, Kuang-Yu Yen
  • Patent number: 8965310
    Abstract: A transmitter including a first mixer, a first frequency divider to divide a frequency of an input signal to generate a first signal, and a plurality of second frequency dividers to divide the frequency to respectively generate a plurality of second signals, and a control module. In response to the transmitter being turned on, the control module turns on the first frequency divider, turns off the plurality of second frequency dividers, and drives the first mixer with the first signal. Subsequently, in response to determining that a transmit power of the transmitter is to be increased, the control module sequentially turns on and connects each of the plurality of second frequency dividers in parallel to the first frequency divider. Upon a second frequency divider being connected to the first frequency divider, the control module also drives the first mixer using the second signal generated by that second frequency divider.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: February 24, 2015
    Assignee: Marvell World Trade Ltd.
    Inventors: Danilo Gerna, Stefano Dal Toso, Gregory Uehara