Multiband Patents (Class 455/168.1)
  • Patent number: 10734967
    Abstract: A polyphase filter operates to provide capacitive compensation to drive a multiphase network for generating quadrature signals. The polyphase filter can include a capacitive compensation mechanism at internal nodes. The capacitive compensation mechanism includes a first phase lag circuit between a first internal node and a second internal node and a second phase lag circuit coupled between a third internal node and a fourth internal node. The first internal node is coupled to the second internal node via a first inductor coupled to a first resistor, the second internal node is coupled to the third internal node via a second inductor coupled to a second resistor, the third internal node is coupled to the fourth internal node via a third inductor coupled to a third resistor, and the fourth internal node is coupled to the first internal node via a fourth inductor coupled to a fourth resistor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 4, 2020
    Assignee: Apple Inc.
    Inventors: Brandon Davis, Aishwarya Balakrishnan
  • Patent number: 10523250
    Abstract: A radio frequency system may generate a first signal within a first band and a second signal within a second band for simultaneous transmission. The transceivers may receive a third signal within the first band and a fourth signal within the second band. Antennas may simultaneously wirelessly transmit the first signal and the second signal and wirelessly receive the third signal and the fourth signal. Analog signal processing circuitry elements may operate on the first signal or the second signal, or both. A controller may receive an indication of operating conditions of the radio frequency system and control the phase shifters disposed between at least two of the analog signal processing circuitry elements to reduce an amount of intermodulation distortion occurring on the third signal or the fourth signal, or both.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 31, 2019
    Assignee: Apple Inc.
    Inventors: Daniel Kong, William J. Noellert, Ali Ghoreishi
  • Patent number: 10503398
    Abstract: A method of controlling display of selectable elements on a portable electronic device includes displaying a navigation bar including a plurality of selectable elements along a side of the touch-sensitive display that is adjacent to the physical keyboard. In response to entering a keyboard input mode, a plurality of keyboard keys is displayed on the touch-sensitive display, along the side that is adjacent to the physical keyboard. The keyboard keys include keys for character entry in a character entry field on the touch-sensitive display and a key to discontinue displaying the plurality of keyboard keys on the touch-sensitive display. In response to receipt of selection of the key to discontinue displaying the plurality of keyboard keys on the touch-sensitive display, display of the plurality of keyboard keys is discontinued and the navigation bar is displayed along the side that is adjacent to the physical keyboard.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: December 10, 2019
    Assignee: BlackBerry Limited
    Inventor: Christofer Bengt Thure Leyon
  • Patent number: 10469123
    Abstract: A radio frequency front end module is provided for a high power capability and a high signal band selectivity. The front end module includes an external filter and an integrated circuit coupled with the external filter via two external filter leads. The integrated circuit includes a transmit-receive switch, a power amplifier and a low noise amplifier. The transmit-receive switch alternates between coupling an antenna port to a transmit port and coupling the antenna port to a receive port. The power amplifier amplifies a modulated radio frequency signal. The low noise amplifier amplifies a received radio frequency signal when the antenna port is coupled to the receive port. The external filter can be replaced to adapt to various requirements of signal frequency bands, without the need of modifying the layout of the integrated circuit.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 5, 2019
    Assignee: NETGEAR, INC.
    Inventor: Joseph Amalan Arul Emmanuel
  • Patent number: 10034232
    Abstract: The present invention relates to a method for managing the automatic provision of a subscriber network identifier from a central network server to a subscribed communication device, the method comprising receiving notification at the central server relating to a change in the current location for the subscribed device, and determining from the notification whether a new subscriber network identifier is to be provisioned from the central server. The method further comprises selecting a subscriber network identifier on the basis of the current location, if the determining step has determined that a new subscriber network identifier is to be provisioned, and outputting the selected subscriber network identifier for transmission to the subscribed device. The present invention also relates to managing the automatic connection of a subscribed communication device to a network, where a preferred network and preferred subscriber network identifier may be used.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 24, 2018
    Assignee: Truphone Limited
    Inventors: James Peter Tagg, Edward Thomas Guy, III, Timothy Paul Evans, Robert Snijder, Igor Borisoglebski, Alistair James Campbell, Claudio Sequeira
  • Patent number: 9461674
    Abstract: An electronic device may be provided with a primary antenna that is used for transmitting and receiving signals and a secondary antenna that is used for receiving signals. The primary and secondary antennas may be used together in a diversity arrangement when receiving signals. The electronic device may have a transceiver. A phase shifter may be interposed between the transceiver and the secondary antenna. Control circuitry may select a communications band of interest for transmitting signals with the primary antenna. The control circuitry can adjust the phase shifter in real time based on which communications band of interest has been selected for transmission with the primary antenna. The phase shifter may impose a phase shift on signals carried between the secondary antenna and the transceiver that ensures that primary antenna efficiency degradation associated with the presence of the secondary antenna in the vicinity of the primary antenna is avoided.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: October 4, 2016
    Assignee: Apple Inc.
    Inventors: Salih Yarga, Miroslav Samardzija, Qingxiang Li, Robert W. Schlub
  • Patent number: 9408023
    Abstract: A short-range wireless communication access device controls a first network interface to send broadcast radio data packets for allowing a portable terminal to discover the short-range wireless communication access device in a specified first time range, on the basis of time synchronized with the portable terminal to access a short-range wireless communication network. Further, the short-range wireless communication access device receives operation scenario information for controlling whether to send the broadcast radio data packets through a second network interface, and controls the first network interface to cyclically send the broadcast radio data packets in accordance with a repetition cycle in the first time range based on the repetition cycle included in the operation scenario information, the specified first time range in the repetition cycle, and the time determined from the radio signal received through the second network interface.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: August 2, 2016
    Assignee: A2UICT CO., LTD.
    Inventors: Sung Hyun Chung, Min Joong Rim
  • Patent number: 9369975
    Abstract: An apparatus for configuring an overlay broadcast network is provided. The apparatus includes: an overlay broadcast server that receives broadcast contents information from a contents server, receives traffic information from a plurality of heterogeneous radio access network, and configures an overlay broadcast network by overlaying the plurality of heterogeneous radio access networks based on the broadcast contents information and the traffic information.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 14, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Young-Il Kim
  • Patent number: 9331719
    Abstract: An electronic device may be provided with a primary antenna that is used for transmitting and receiving signals and a secondary antenna that is used for receiving signals. The primary and secondary antennas may be used together in a diversity arrangement when receiving signals. The electronic device may have a transceiver. A phase shifter may be interposed between the transceiver and the secondary antenna. Control circuitry may select a communications band of interest for transmitting signals with the primary antenna. The control circuitry can adjust the phase shifter in real time based on which communications band of interest has been selected for transmission with the primary antenna. The phase shifter may impose a phase shift on signals carried between the secondary antenna and the transceiver that ensures that primary antenna efficiency degradation associated with the presence of the secondary antenna in the vicinity of the primary antenna is avoided.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: May 3, 2016
    Assignee: Apple Inc.
    Inventors: Salih Yarga, Miroslav Samardzija, Qingxiang Li, Robert W. Schlub
  • Patent number: 9020559
    Abstract: A method for direct sampling of a plurality of radio bands, including a step of receiving a first radio band via a first interface and at least one additional radio band via at least one additional interface, the first radio band and the at least one additional radio band each being associated with different frequency ranges, and the first radio band or the at least one additional radio band being a DAB band. Furthermore, a selection signal is received via an interface, the selection signal indicating whether further processing of the first radio band and/or the at least one additional radio band takes place. Depending on the selection signal, the first radio band is sampled at a common sampling frequency and/or the at least one additional radio band is sampled at the common sampling frequency.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: April 28, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Carsten Lehr, Detlev Nyenhuis, Marcus Risse
  • Patent number: 9002298
    Abstract: A wireless communications device includes a Personal Area Network (PAN) transceiver that communicates data with a corresponding PAN transceiver disposed in a hands-free visor. The device also includes a short-range transceiver that communicates with a corresponding short-range transceiver in the hands-free visor. Both the wireless communications device and the hands-free device are configured to select which of these transceivers it is to use to transmit data based on predefined criteria.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: April 7, 2015
    Assignees: Sony Corporation, Sony Mobile Communications AB
    Inventors: Peter Karlsson, Kåre Agardh, Daniel Lönnblad
  • Patent number: 9002304
    Abstract: An analog baseband filter apparatus for a multi-mode and multi-band wireless transceiver and a method for controlling the analog baseband filter apparatus are provided. The analog baseband filter apparatus includes a plurality of Radio Frequency (RF) units, each of the plurality of RF units being for receiving RF signals of one of a plurality of frequency bands and outputting baseband signals, a plurality of filter blocks for filtering and amplifying the baseband signals, and a switching unit for connecting at least two of the plurality of RF units to at least one of the plurality of filter blocks according to a selected communication mode, wherein the at least one of the plurality of filter blocks is configured to be connected to a capacitor region of an adjacent filter block from among the plurality of filter blocks.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Woo Lee, Shin-Chul Kim, Su-Seob Ahn, Si-Bum Jun, Byung-Ki Han
  • Patent number: 8983533
    Abstract: A method for enabling a MIMO operation mode in a multimode communication terminal includes switching a first channel module to have parameter characteristics consistent with those of a second channel module, so that the multimode communication terminal enables the MIMO operation mode by using the first channel module and the second channel module at the same time. The method also includes extracting corresponding parameters from the second channel module and configuring the first channel module to be switched with the extracted parameters, such that the first channel module and second channel module enable the multimode communication terminal to perform MIMO communication. The method further includes issuing, upon determination of a switch, notification instructions to means in channel switch layer means and changing a data channel associated with the first channel module, such that the first channel module and second channel module can be adapted to the MIMO operation mode.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: March 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Yong Hua Lin, Hong Hua Song, Yu Dong Yang, Yu Yuan, You Zhou
  • Patent number: 8983401
    Abstract: A communication apparatus includes a radio portion (100) configured to transmit a modulated transmission signal and to receive a modulated reception signal.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 17, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Shinya Oka, Takashi Okada
  • Patent number: 8867671
    Abstract: A conversion circuit (20) for converting a complex analog input signal having an in-phase, I, component and a quadrature-phase, Q, component resulting from frequency down conversion of a radio-frequency, RF, signal (XRF) to a frequency band covering 0 Hz into a digital representation is disclosed. It comprises a channel-selection filter unit (40) arranged to filter the complex analog input signal, thereby generating a channel-filtered I and Q components, and one or more processing units (53, 53a-b). Each processing unit comprises four mixers (60-75) for generating a first and a second frequency-translated I component and a first and a second channel-filtered Q component based on two LO signals with equal LO frequency and a 90° mutual phase shift. Furthermore, each processing unit comprises a combiner unit (85, 120) for generating a first, a second, a third, and a fourth combined signal proportional to sums and differences between said frequency translated I and Q components.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: October 21, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Lars Sunström, Roland Strandberg
  • Patent number: 8862073
    Abstract: A configurable antenna structure includes a plurality of switches, a plurality of antenna components, and a configuration module. The configuration module is operable to configure the plurality of switches and the plurality of antenna components into a first antenna for receiving a multiple frequency band multiple standard (MFBMS) signal. The configuration module continues processing by identify a signal component of interest of a plurality of signal components of interest within the MFBMS signal. The configuration module continues processing by configuring the plurality of switches and the plurality of antenna components into a second antenna.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: October 14, 2014
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, Arya Reza Behzad, Brima B. Ibrahim, David Rosmann, John Walley, Jeyhan Karaoguz, Ahmadreza Rofougaran
  • Patent number: 8792328
    Abstract: Embodiments of a system and methods for improving radio link reliability using multi-carrier capability in wireless systems are generally described herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: July 29, 2014
    Assignee: Intel Corporation
    Inventors: Xiangying Yang, Kamran Etemad
  • Patent number: 8787852
    Abstract: The invention relates to a device comprising a direct path block with an input and an output, and a feedback block with an input and an output, the input of the direct path block being adapted to receive a multi-channel input signal with a given frequency range and the output of the direct path block being adapted to output an output signal with a base band frequency range, the output of the direct path block being coupled to the input of the feedback block and the input of the direct path block being coupled to the output of the feedback block. The direct path block comprises a first transposing unit (4) adapted to transpose the input signal to the base band frequency range and the feedback block comprises a filtering unit (3) adapted to filter the transposed signal at the output of the direct path block, a second transposing unit (5) adapted to transpose the filtered signal to the given frequency range and to feed back the transposed signal at the input of the direct path block.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: July 22, 2014
    Assignee: ST-Ericsson SA
    Inventors: Philippe Cathelin, Christian Izquierdo, Franck Montaudon, Andreas Kaiser
  • Patent number: 8787841
    Abstract: Techniques to support beamforming for stations in a wireless network are described. In one aspect, a station may support beamforming with implicit feedback or explicit feedback by having capabilities to transmit and receive sounding frames, respond to training request by sending a sounding frame, and respond to request for explicit feedback. In one design of explicit beamforming, the station may send a first frame with a request for explicit feedback and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with the explicit feedback, which may be derived based on the NDP. The station may derive steering information (e.g., steering matrices) based on the explicit feedback and may then send a steered frame with beamforming based on the steering information. The station may also perform implicit beamforming using NDP for sounding.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: July 22, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: John W. Ketchum, Sanjiv Nanda, Arnaud Meylan, Shravan K. Surineni
  • Patent number: 8718558
    Abstract: A wireless communication device includes a first wireless transceiver and a second wireless transceiver. The wireless device is configured for communicating via the first transceiver over a first connection with a first device, where communications to and from the wireless device are addressed with a first hardware address assigned to the first transceiver. The wireless device is further configured for communicating via the first transceiver over a second connection with a second device, where communications to and from the wireless device are addresses with a second hardware address assigned to the second transceiver. The first transceiver may be configured for communications in accordance with IEEE 802.11, and the second transceiver may be configured for communications in accordance with BLUETOOTH®. The first connection may be a wireless local area network (WLAN) infrastructure connection, and the second connection may be a WiFi Peer-to-Peer (P2P) connection.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: May 6, 2014
    Assignee: Blackberry Limited
    Inventor: Michael Peter Montemurro
  • Patent number: 8688063
    Abstract: A receiving apparatus in a wireless communication system includes: an antenna configured to receive a wireless frequency signal including a first frequency band signal and a second frequency band signal; a low noise amplifier (LNA) configured to amplify the wireless frequency signal, output the first frequency band signal as a differential phase signal, and output the second frequency band signal as a common phase signal; a differentiator configured to pass only the differential phase signal between the signals outputted from the LNA; and a combiner configured to pass only the common phase signal between the signals outputted from the LNA.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: April 1, 2014
    Assignee: KAIST (Korea Advanced Institute of Science and Technology)
    Inventors: Sang-Gug Lee, Yuna Shim
  • Patent number: 8676143
    Abstract: Various embodiments of a wireless multimode receiver having an off-chip duplex filter associated with a multimode band, and a blocker cancellation circuit disposed on a semiconductor chip are described in the present disclosure.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: March 18, 2014
    Assignee: Intel Mobile Communications GmbH
    Inventors: Volker Thomas, Bernd Adler
  • Patent number: 8660070
    Abstract: A base station includes a scheduler configured to perform frequency scheduling for each subframe; a control channel generating unit configured to generate a control channel including common control information to be mapped to radio resources distributed across a system frequency band and specific control information to be mapped to one or more resource blocks allocated to each selected user device; and a transmission signal generating unit configured to generate a transmission signal by time-division-multiplexing the common control information and the specific control information according to scheduling information from the scheduler. The common control information includes a format indicator representing one of preset options that indicates the number of symbols occupied by the common control information in one subframe. The common control information includes information units with a predetermined data size.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: February 25, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Nobuhiko Miki, Kenichi Higuchi, Mamoru Sawahashi
  • Patent number: 8654707
    Abstract: Methods, systems, and devices are disclosed for wireless communication over unlicensed spectrum using a femto cell. In an implementation of the system, a dualmode mobile device adapted to communicate over a licensed frequency spectrum and over an unlicensed frequency spectrum is provided. The dual-mode mobile device detects the presence of a femto cell communicating over an unlicensed spectrum and in response, initiates a communication connection with the unlicensed spectrum femto cell. Subsequently, the connection over a license spectrum may be disconnected upon successful establishment of the connection over the unlicensed spectrum. In yet another implementation, a femto cell communicating over an unlicensed spectrum may be adapted to communicate with a mobile switching center and/or with a voice over IP switch.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: February 18, 2014
    Assignee: Qwest Communications International Inc.
    Inventor: Charles I. Cook
  • Patent number: 8655278
    Abstract: A method for band steering includes, with a wireless access point, refraining from responding to a probe request from a client device on a first frequency band until a first period of time has elapsed if said client device is capable of communication on a second frequency band. The method further includes, with the wireless access point, responding immediately to a probe request from said client device on said second frequency band.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stephane Laroche, Chi Thanh Hoang, Gilbert Moineau
  • Patent number: 8615196
    Abstract: A portable apparatus is capable of switching between a plurality of smart cards and associated circuits to provide a user various independent electronic wallet functions via a single portable apparatus, thereby increasing utilization flexibility and convenience. The portable apparatus includes at least a first smart card and a second smart cart, a near-field communication (NFC) unit, and a control circuit. The first smart card and the second smart card respectively include a first interface and a second interface. The NFC unit is coupled to the first smart card and the second smart card via the first interface and the second interface, respectively. The NFC unit is capable of performing NFC with external apparatuses. The control circuit controls the NFC unit to communicate with either the first smart card or the second smart card using control signals.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 24, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventor: Chien-Sheng Chen
  • Patent number: 8588846
    Abstract: In one aspect, the invention provides a multi-modal user equipment (UE) configuration method. In some embodiments, the method includes: configuring the UE so that it supports a plurality of radio access technologies (RATs), wherein each of the plurality of RATs is associated with a predetermined maximum number of layers that the UE may be instructed by a network node to monitor simultaneously; configuring the UE so that it is operable to transmit to the network node RAT capability information identifying the plurality of RATs supported by the UE; and configuring the UE to monitor simultaneously not more than X layers associated with one of the plurality of RATs, wherein X is less than the predetermined maximum number of layers associated with the RAT.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: November 19, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Muhammad Kazmi
  • Patent number: 8570146
    Abstract: An in-vehicle wireless system, capable of operating at least in a copy mode and a transmission mode, comprises: at least one receiving unit receiving a wireless signal transmitted from a remote control transmitter and demodulates a control code signal; and at least one transmitting unit transmitting wireless signals at a plurality of carrier frequencies; and a control unit controlling so as to obtain a control code from the control code signal and store it in the copy mode, and so as to perform transmitting the modulated wireless signals at all carrier frequencies unique to a plurality of the garage door opening-closing mechanisms or the like. The receiving unit may include a detection circuit connected to a reception antenna directly.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: October 29, 2013
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventors: Hideki Uno, Shigeyoshi Toda
  • Patent number: 8565814
    Abstract: One embodiment relates to a circuit for efficient wireless communication. The circuit includes an antenna interface module adapted to receive multiple frequency components via an antenna. Multiple reception paths stem from the antenna interface module, where different reception paths are associated with different frequency components. The circuit also includes multiple filter elements having inputs respectively coupled to the multiple reception paths. At least two of the filter elements cooperatively form a differential output signal based on their respective frequency components. Other methods and systems are also disclosed.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: October 22, 2013
    Assignee: Intel Mobile Communications GmbH
    Inventors: Weimin Tang, Ern Teng Chu, Hon Kong Lok, Wei Dong Chen
  • Patent number: 8565701
    Abstract: An antenna system is disclosed. A wireless device includes two antennas. The first antenna is optimized at a first frequency band. The second antenna is optimized at a second frequency band. The signals received from respective optimized frequency bands are used as primary received signals. The signals having frequencies beyond respective optimized frequency bands are used as diversity signals. Likewise, the signals transmitted from a transceiver to base stations are sent to respective antennas based upon their frequency bands. By employing this optimized antenna configuration, the wireless device can provide high quality wireless signals for both frequency bands.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: October 22, 2013
    Assignee: FutureWei Technologies, Inc.
    Inventors: Jorge Fabrega Sanchez, Ping Shi
  • Patent number: 8547836
    Abstract: Some demonstrative embodiments include devices, systems and/or methods of dual-mode wireless communication. Some embodiments include a wireless dual-mode transceiver capable of operating at first and second wireless communication modes during first and second time periods, respectively, wherein at the first communication mode the transceiver is capable of performing wireless-local-area-network communications over a wireless-local-area-network link, and wherein at the second communication mode the transceiver is capable of performing wireless video communications over a wireless video communication link. Other embodiments are described and claimed.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 1, 2013
    Assignee: Amimon Ltd.
    Inventors: Meir Feder, Lior Ophir
  • Patent number: 8543060
    Abstract: A system for transferring active communication sessions between apparatuses. In at least one example implementation, a first apparatus may receive information including at least identity information corresponding to a second apparatus via close-proximity wireless communication. The receipt of the identity information may then trigger the first apparatus to determine whether it is already in a communication session. If it is determined that the first apparatus is in a communication session, it may be further determined, based on the identity information, whether automatic transfer of the communication session is permitted. If the first apparatus determines that the automatic transfer is permitted, the first apparatus may then initiate a transfer of the communication session to the second apparatus.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 24, 2013
    Assignee: Nokia Corporation
    Inventors: Jari Mutikainen, Andrea Bacioccola
  • Patent number: 8521110
    Abstract: A communication device includes an RF transceiver for communicating first data with at least one of a plurality of remote communication devices via a first protocol and a first frequency band. A millimeter wave transceiver communicates second data with at least one of the plurality of remote communication devices via a second protocol and a second frequency band. A communication control module coordinates the communication of the first data and the second data with the at least one of the plurality of remote communication devices and for establishing a mesh network between the communication device and the plurality of remote communication devices.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: August 27, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8494460
    Abstract: In accordance with some embodiments of the present disclosure, a transmitting path comprises a digital to analog converter (DAC) configured to receive digital data signals and convert the digital data signals into analog data signals. The transmitting path further comprises a first transmission protocol path and a second transmission protocol path configured to receive a first data signal and second data signal, respectively, from the DAC. The first data signal is associated with a first transmission protocol and the second data signal is associated with the second transmission protocol. The transmitting path additionally comprises a mixer coupled to the first and second transmission protocol paths and configured to receive at least one of the first data signal and the second data signal and modulate at least one of the first data signal and the second data signal onto a carrier signal to generate a radio frequency (RF) signal.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 23, 2013
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Omid Oliaei, Mark Alan Kirschenmann, David Newman
  • Patent number: 8483638
    Abstract: A transmitter that performs radio communications with a receiver in a plurality of types of communications services, the transmitter includes a controller that controls guard intervals of at least any one of a plurality of codes, which are unique to respective cells and correspond to any one of the plurality of types of communications services, so that lengths of guard intervals of the plurality of codes become same; and a transmitting unit that transmits first codes among the plurality of codes using a first band set in a transmission band, and also transmits second codes among the plurality of codes different from the first codes using a second band set in the transmission band different from the first band set.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: July 9, 2013
    Assignee: Fujitsu Limited
    Inventors: Takashi Dateki, Takashi Seyama
  • Patent number: 8478217
    Abstract: A scanner for monitoring signals at one or more frequencies having a processor for performing various functionalities of the scanner in accordance with a set of instructions including a menu of selectable menu items; a display for displaying the menu items; and at least one variable selector operatively coupled to the processor for selecting menu items. The scanner also includes a receiver for receiving serial data regarding an event from a local transmitter.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: July 2, 2013
    Assignee: Track Scan, Inc.
    Inventor: Glen Aikenhead
  • Patent number: 8467747
    Abstract: A high performance and cost effective method of RF-digital hybrid mode power amplifier systems with high linearity and high efficiency for multi-frequency band wideband communication system applications is disclosed. The present disclosure enables a power amplifier system to be field reconfigurable and support multiple operating frequency bands on the same PA system over a very wide bandwidth. In addition, the present invention supports multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: June 18, 2013
    Assignee: Dali Systems Co. Ltd.
    Inventors: Wan-Jong Kim, Kyoung-Joon Cho, Shawn Patrick Stapleton
  • Patent number: 8467753
    Abstract: A receiver for receiving a first usable frequency band and a second usable frequency band includes a band-pass filter device for filtering one or several receiving signals, a mixer device for converting the combination signal or the first band-pass filter signal and the second band-pass filter signal with a local oscillator signal, for obtaining a first intermediate frequency signal and a second intermediate frequency signal, and an intermediate frequency filter device for filtering the first intermediate frequency signal and the second intermediate frequency signal. Further, the receiver includes an analog/digital converter device for analog/digital converting the first filtered intermediate frequency signal and the second filtered intermediate frequency signal by using a single sampling frequency for obtaining a first digitized intermediate frequency signal and a second digitized intermediate frequency signal.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: June 18, 2013
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Alfonso Carrera, Stefan Koehler, Guenter Rohmer
  • Patent number: 8463315
    Abstract: A handheld wireless communication device cradleable in one hand by an operator during text entry. A display, key field and trackball are all located on a front face of the device. Alphanumeric input keys include several alphabetic keys with letters arranged in a traditional (QWERTY), but non-ITU Standard E.161 telephone letter layout. A microprocessor is provided that receives operator commands from the keys and the trackball navigation tool and which affects corresponding changes to the display based on user input. The keys of the key field are arranged in rows and columns and at least one of the rows and columns is arranged with a long axis thereof radially oriented relative to the trackball navigation tool.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: June 11, 2013
    Assignee: Research In Motion Limited
    Inventors: Jason T. Griffin, Steven Fyke
  • Patent number: 8463217
    Abstract: A MIMO transceiver integrated circuit (IC) includes a plurality of multiple band direct conversion transmitter sections, a plurality of multiple band direct conversion receiver sections, and a local oscillation generation module. Each of the plurality of multiple band direct conversion transmitter sections includes a transmit baseband module and a multiple frequency band transmission module. Each of the plurality of multiple band direct conversion receiver sections includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is operably coupled to generate the first frequency band local oscillation when the multiple band MIMO transceiver IC is in a first mode and operably coupled to generate the second frequency band local oscillation when the multiple band MIMO transceiver IC is in a second mode.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: June 11, 2013
    Assignee: Broadcom Corporation
    Inventor: Arya Reza Behzad
  • Patent number: 8457579
    Abstract: A method for signal processing includes distributing an analog input signal to a plurality of processing channels. In each processing channel, the input signal is mixed with a respective periodic waveform including multiple spectral lines, so as to produce a respective baseband signal in which multiple spectral slices of the input signal are superimposed on one another. The baseband signal produced in each of the processing channels is digitized, to produce a set of digital sample sequences that represent the input signal.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: June 4, 2013
    Assignee: Technion Research & Development Foundation Ltd.
    Inventors: Moshe Mishali, Yonina Eldar
  • Patent number: 8447253
    Abstract: In a radio communication system in which multiple bands or a plurality of different radio frequencies are used, a different radio transmission method is used in each band or at each radio frequency. For example, by transmitting data using radio formats which are different in each band or at each radio frequency, the radio transmission method is made different in each band or at each radio frequency. In order to vary the radio format, (1) the pilot length is varied at each radio frequency; or (2) the pilot interval is varied at each radio frequency; or (3) the guard interval length is varied in each band or at each radio frequency; or (4) when multicarrier modulation is used for radio communication in each band, the subcarrier interval for multicarrier transmission is varied in each band.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: May 21, 2013
    Assignee: Fujitsu Limited
    Inventor: Hideto Furukawa
  • Patent number: 8447348
    Abstract: A configurable antenna structure includes a plurality of switches, a plurality of antenna components, and a configuration module. The configuration module is operable to configure the plurality of switches and the plurality of antenna components into a first antenna for receiving a MFBMS signal. The configuration module continues processing by identify a signal component of interest of a plurality of signal components of interest within the MFBMS signal. The configuration module continues processing by configuring the plurality of switches and the plurality of antenna components into a second antenna.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: May 21, 2013
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, Arya Reza Behzad, Brima B. Ibrahim, David Rosmann, John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran
  • Patent number: 8422981
    Abstract: An integrated circuit (IC) includes multiple circuits isolated with respect to one another. Each circuit of the multiple circuits includes an inductor pair formed in a loop pattern on a same layer as at least one other inductor pair from another circuit of the multiple circuits, such that the inductor pair surrounds and is isolated from the at least one other inductor pair.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 16, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Won Mun, Seong-Han Ryu, Il-Ku Nam
  • Patent number: 8406716
    Abstract: A communication device includes an RF transceiver for communicating first data with at least one of a plurality of remote communication devices via a first protocol and a first frequency band. A millimeter wave transceiver communicates second data with at least one of the plurality of remote communication devices via a second protocol and a second frequency band. A communication control module coordinates the communication of the first data and the second data with the at least one of the plurality of remote communication devices and for establishing a mesh network between the communication device and the plurality of remote communication devices.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 26, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8396430
    Abstract: Disclosed are a semiconductor integrated circuit device and a wireless communication system that are capable of improving reception sensitivity. The wireless communication system includes, for instance, a first duplexer, a second duplexer, a first low-noise amplifier circuit, and a second low-noise amplifier circuit. A transmission band compliant with a communication standard is split into two segments for use, namely, low- and high-frequency transmission bands. A reception band compliant with the communication standard is split into two segments for use, namely, low- and high-frequency reception bands. The first duplexer uses the low-frequency transmission band and low-frequency reception band as passbands. The second duplexer uses the high-frequency transmission band and high-frequency reception band as passbands.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 12, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Taizo Yamawaki, Tomonori Tanoue, Kazuaki Hori
  • Patent number: 8385319
    Abstract: A method and apparatus for enabling multi-band transmission includes transmitting a beacon on a first radio band and transmitting the beacon on a second radio band. The beacon includes coordination information for transmission on the first and second radio bands.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 26, 2013
    Assignee: Interdigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Sudheer A. Grandhi, Mohammed Sammour, Catherine M. Livet
  • Patent number: 8374566
    Abstract: A wideband RF tracking filter having a set of parallel tuned resonator amplifier stages with a de-Q resistor for each subband is disclosed. The resonant amplifier contains programmable tuned LC tank impedance and an array of parallel voltage to current converters (V2I) for each subband. The de-Q resistor together with the array of V2I converters provides a flat gain over each subband and each of the other subbands covering different frequencies.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 12, 2013
    Assignee: NXP B.V.
    Inventors: Weinan Gao, Ray Rosik
  • Patent number: 8364106
    Abstract: A multiple band direct conversion radio frequency (RF) transceiver integrated circuit (IC) includes a multiple band direct conversion transmitter section, a multiple band direct conversion receiver section, and a local oscillation module. The multiple band direct conversion transmitter section includes a transmit baseband module and a multiple frequency band transmission module. The multiple band direct conversion receiver section includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is coupled to generate a first frequency band local oscillation when the multiple band direct conversion RF transceiver IC is in the first mode and coupled to generate a second frequency band local oscillation when the multiple band direct conversion RF transceiver IC is in the second mode.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: January 29, 2013
    Assignee: Broadcom Corporation
    Inventor: Arya Reza Behzad
  • Patent number: RE45273
    Abstract: A transceiver system includes a first section coupled to a first antenna, a second section coupled to a second antenna, and a radio frequency (RF) unit. The first section includes a transmit path and a first receive path for a first (e.g., GSM) wireless system, a transmit path and a first receive path for a second (e.g., CDMA) wireless system, and a transmit/receive (T/R) switch that couples the signal paths to the first antenna. The second section includes a second receive path for the first wireless system and a second receive path for the second wireless system. The first and second receive paths for the first wireless system are for two frequency bands. The first and second receive paths for the second wireless system are for a single frequency band and provide receive diversity. The transceiver system may include a GPS receive path coupled to a third antenna.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: December 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Robert Lloyd Robinett