Transceiver Controlling A Separate Transceiver Or Receiver Patents (Class 455/88)
  • Patent number: 9084201
    Abstract: Systems and methodologies are described that facilitate power headroom management in a wireless communication system. As described herein, a predefined relationship between locations along a system frequency band and corresponding power backoff parameters is utilized to minimize spurious emissions outside the system frequency band and/or excessive interference by, for example, associating locations near one or more edges of the permitted frequency band with substantially high power backoff parameters. As further described herein, the predefined relationship can be known a priori to the base station and the mobile terminal.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: July 14, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Sanjeev Arvind Athalye, Avneesh Agrawal
  • Patent number: 9065491
    Abstract: In a particular embodiment, a method of generating in-phase (I) and quadrature-phase (Q) signals includes generating a first I output signal based on a first I input signal, a second I input signal, a first Q input signal, and a second Q input signal. The method further includes generating a second I output signal based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A first Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A second Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. According to further embodiments, an apparatus is disclosed.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 23, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Cheol-Woong Lee, Saihua Lin, Roger Brockenbrough
  • Patent number: 9036514
    Abstract: Systems and methods for combining signals from multiple active wireless receivers are discussed herein. An exemplary system comprises a first downconverter, a phase comparator, a phase adjuster, and a second downconverter. The first downconverter may be configured to downconvert a received signal from a first antenna to an intermediate frequency to create an intermediate frequency signal. The phase comparator may be configured to mix the received signal and a downconverted signal to create a mixed signal, compare a phase of the mixed signal to a predetermined phase, and generate a phase control signal based on the comparison, the downconverted signal being associated with the received signal from the first antenna. The phase adjuster may be configured to alter the phase of the intermediate frequency signal based on the phase control signal. The second downconverter may be configured to downconvert the phase-shifted intermediate frequency signal to create an output signal.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 19, 2015
    Assignee: Aviat U.S., Inc.
    Inventor: Ying Shen
  • Patent number: 9020422
    Abstract: A system includes a plurality of stations capable of communicating with each other. A station of the system may comprise multiple antenna subassemblies and a receiver coupled to the subassemblies. The station is operable to activate one or more of the subassemblies to determine a direction of a first incoming signal, and to then activate another one or more of the subassemblies to receive a second incoming signal from substantially the same direction. Alternatively, the station may comprise multiple antenna subassemblies and a receiver coupled to the subassemblies and operable to activate each of the subassemblies for a respective interval to service at least one respective transmitting station covered by the activated subassembly during the interval.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: April 28, 2015
    Assignee: STMicroelectronics, Inc.
    Inventors: Liwen Chu, George A. Vlantis
  • Patent number: 8977206
    Abstract: A data transmission device connected to a monitor includes a wireless transmission module, a multimedia processing unit and an output interface. The wireless transmission module wirelessly receives a multimedia data transmitted by an electronic apparatus. The multimedia processing unit receives and decompresses and decodes the multimedia data, and the output interface transmits the multimedia data to the monitor for displaying the multimedia data. The display area of the monitor is larger than the display area of the display unit of the electronic apparatus. A user is allowed to watch the multimedia data generated from the electronic apparatus executing a multimedia file on the monitor with a large display area. A data transmission system and method based on the data transmission device is also disclosed.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: March 10, 2015
    Assignee: GoBe Cam Limited
    Inventors: Zhou Ye, Pei-Chuan Liu
  • Patent number: 8977327
    Abstract: A communication apparatus and an air-cooling method for the same utilizes an air-cooling mode that can be easily changed to reduce the cost to increase the number of transceiver units and space for the housing. The communication apparatus includes transceiver units installed in a housing and attachable onto and detachable from the communication apparatus and fan units for forcibly air-cooling heat generated from the transceiver units. The fan units are installed in the housing and are attachable onto and detachable from the communication apparatus. Each transceiver unit includes a transceiver function section; a forced air-cooling radiator fixedly mounted in the transceiver function section for forcibly air-cooling heat generated from the transceiver function section; and a natural air-cooling radiator mounted in the transceiver function section for naturally air-cooling heat generated from the transceiver function section.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 10, 2015
    Assignee: NEC Corporation
    Inventor: Yukihiko Yokoyama
  • Patent number: 8977218
    Abstract: A multi-mode wireless transceiver and a multi-mode switching method thereof are disclosed to provide at least one wireless transceiving interface capable of dynamically switching between multiple frequency bands. The wireless transceiver comprises: a first RF transceiving circuit for transceiving RF signals of a first frequency band; a second RF transceiving circuit for transceiving RF signals of a second frequency band; a first frequency synthesizer and a second frequency synthesizer for generating a first carrier of the first frequency band and a second carrier of the second frequency band respectively; and a switching circuit for outputting the first carrier to the first RF transceiving circuit, and for determining to output one of the first and second carriers to the second RF transceiving circuit according to a control signal.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: March 10, 2015
    Assignee: Realtek Semiconductor Corp.
    Inventors: Kuang Yu Yen, Der Zheng Liu
  • Patent number: 8954030
    Abstract: A communication pathway is established between an implanted medical device (IMD) and a proximate electronic device. Performance of one or more functions by the electronic device is known to have a potential to cause at least one adverse effect on the implanted medical device. The implanted medical device can wirelessly conveying a message over the communication pathway to the electronic device detailing an existence of the implanted medical device (IMD) within wireless communication range of the electronic device and detailing a safety requirement or operational data specific to the implanted medical device. The conveyance of the message from the implanted medical device can place the proximate electronic device on notice to minimize the adverse effects on the implanted medical device resulting from executing the one or more functions.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 10, 2015
    Inventor: Brian K. Buchheit
  • Patent number: 8954014
    Abstract: A testing system comprises a noise source coupled to at least two antenna elements. The noise source forms a total noise power on the basis of a total signal power received by the emulator, a gain of at least one antenna-specific channel between the emulator and the antenna elements, and a desired signal-to-noise ratio. The noise source transmits noise at the total noise power from the at least two antenna elements to the device under test wirelessly.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: February 10, 2015
    Assignee: Anite Telecoms Oy
    Inventors: Pekka Kyösti, Jukka-Pekka Nuutinen, Tommi Jämsä
  • Publication number: 20150017920
    Abstract: Embodiments of the present invention relate to the field of wireless communication technologies, and provide a transceiving module, an antenna, a base station and a signal receiving method, which are capable of implementing receiving of four dual-band signals and improving uplink network performance of a base station. The transceiving module includes a combining-splitting network, a set of transceiving unit arrays and a signal processing unit that are connected to each other in sequence, and further includes a combining network setting with a connection point connected to another transceiving module, a co-element filter unit separately connected to the combining-splitting network and the combining network, and a pair of receiving units connected to the signal processing unit, where the pair of receiving units in the transceiving module is disposed with a connection point connected to the another transceiving module. The embodiments of the present invention apply to the field of communication.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Dezheng Liu, Tao Pu, Weihua Sun, Zuojun Qin, Pinghua He
  • Publication number: 20140370810
    Abstract: This disclosure describes wireless communication techniques, protocols, methods, and devices applicable to a docking system environment in which aspects of wireless docking may function using vicinity-based undocking techniques. In some examples, the techniques of this disclosure enable a wireless docking center to undock a wireless dockee in a situation where a wireless dockee moves out of the vicinity of a wireless docking center so as to prevent malicious users from using peripheral devices available through the wireless docking center to interact with the wireless dockee without the wireless dockee user's knowledge. In other examples, the wireless dockee may undock itself from a wireless docking center when the wireless dockee moves out of the vicinity of a wireless docking center.
    Type: Application
    Filed: March 12, 2014
    Publication date: December 18, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Xiaolong Huang, Xiaodong Wang
  • Patent number: 8913626
    Abstract: Embodiments of methods, apparatuses, and systems for signal processing of multiple input signals to control peak amplitudes of a combined signal are disclosed. One method includes receiving a plurality of input signals, generating a combined signal, the combined signal comprising a plurality of sub-channels, wherein each sub-channel includes a representation of at least a portion of at least one of the plurality of input signals, and processing the representation of the least a portion of the at least one of the plurality of input signals of at least one of the sub-channels, to reduce a peak-to-average-power ratio (PAR) of the combined signal.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 16, 2014
    Assignee: Entropic Communications, Inc.
    Inventors: Moshe Malkin, Dimitry Taich, Jose Tellado
  • Patent number: 8909172
    Abstract: A digital network for communication between a plurality of subscribers by means of streaming data comprises at least one subscriber that is a transmitter, and at least one subscriber that is a receiver. At least one transmitter is adapted to be activated, and then to feed streaming data in the form of broadcasts or multicasts into the network. Furthermore, at least one receiver is adapted to be activated, and then to select from the network streaming data that are compatible with its data formats, and to read the selected streaming data from the network.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 9, 2014
    Assignee: SMSC Europe GmbH
    Inventors: Herbert Hetzel, Rainer Klos, Christian Thiel, Claudius Becker
  • Patent number: 8909165
    Abstract: Isolation techniques for multiple co-located radio modules are disclosed. For example, an apparatus may include an antenna, a first transceiver to communicate wirelessly across a first link, a second transceiver to communicate wirelessly across a second link, a shared antenna structure operative to allow the first transceiver and the second transceiver to share the antenna for simultaneous operations, and an active signal canceller operative to generate a cancellation signal to cancel an interference signal for a radio-frequency coupling channel between the first and second transceivers. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: December 9, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Neil Hendin
  • Patent number: 8897343
    Abstract: A diversity receiver comprises a plurality of receiving paths connected to a receiver circuit. Each of the receiving paths comprises an antenna receiving a signal, connected to a matching network connected to a receive amplifier. The receiver circuit is connected to a signal level comparison circuit for providing a relative comparison value indicating one of the receiving paths receiving the signal with a relative maximum strength. The signal level comparison circuit comprises a comparator circuit connected to the receiver circuit receiving a currently received signal level, and to a logic control unit being arranged to select one of the receive paths to provide the currently received signal to the receiver circuit.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: November 25, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventor: Laurent Gauthier
  • Patent number: 8885692
    Abstract: Embodiments of the present invention provide an apparatus comprising a transceiver having a receiver and a transmitter connected through a segment of a calibration loop back path. The apparatus also comprises a control system configured to communicate with the transceiver. The calibration loop back path has an intentional phase shift that can be toggled between an off state and an on state by the control system. The control system is configured to calculate the intentional phase shift by examining the difference of a first and second phase angle. The first phase angle is obtained from the transmission of a first pair of signals with the intentional phase shift in the off state. The second phase angle is obtained from the transmission of a second pair of signals with the intentional phase shift in the on state.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: November 11, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Yann Ly-Gagnon
  • Patent number: 8885689
    Abstract: A first node including a physical layer device, a first transceiver and a second transceiver. The first transceiver includes a first analog front end connected to a first transmission line. The first analog front end is configured to transfer first data between the physical layer device and a second node via the first transmission line. The second transceiver includes a second analog front end connected to a second transmission line. The second analog front end is configured to transfer second data between the physical layer device and a third node via the second transmission line. A first type of the second transmission line is different than a second type of the first transmission line. The first node is configured to perform as a repeater using data repeating functions at a link layer control level.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 11, 2014
    Assignee: Marvell Hispania S. L.
    Inventors: Jorge Vicente Blasco Claret, Jose Luis Gonzalez Moreno, Salvador Iranzo Molinero, John Vincent Egan, Agustin Badenes Corella
  • Patent number: 8879989
    Abstract: An application for a caller-identification system includes a circuit for receiving caller-identification information from a tip and ring interface and a circuit for wirelessly transmitting at least a subset of the caller-identification information to a display system. In the display system includes a circuit for receiving the caller-identification information and a circuit for displaying the caller-identification information on a display.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 4, 2014
    Assignee: Vizio Inc.
    Inventor: Matthew Blake McRae
  • Patent number: 8867591
    Abstract: A discrete digital transceiver includes a receiver sample and hold module, a discrete digital receiver conversion module, a transmitter sample and hold module, a discrete digital transmitter conversion module, clock generation module, and a processing module. The receiver sample and hold module samples and holds an inbound wireless signal in accordance with a receiver S&H clock signal. The discrete digital receiver conversion module converts the receiver frequency domain sample pulse train into an inbound baseband signal. The transmitter sample and hold module samples and holds an outbound signal to produce a transmitter frequency domain sample pulse train. The discrete digital transmitter conversion module converts a transmitter frequency domain sample pulse train into the outbound wireless signal. The clock generation module generates S&H clock signals in accordance with a control signal. The processing module generates the control signal such that the S&H clock signals are shifted.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: October 21, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Hooman Darabi
  • Patent number: 8867571
    Abstract: The various embodiments described herein generally provide apparatus, systems and methods which facilitate the transmission of data between a client device and a remote device over a wireless telephone network. More particularly, data from a client device is modulated into an audio signal and transmitted to a wireless telephone. The wireless telephone receives the audio signal and places a phone call to a remote device over a wireless telephone network. During the phone call, the wireless telephone transmits the audio signal across a voice channel of the wireless telephone network to the remote device. The remote device receives and decodes the audio signal to extract the transmitted data.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: October 21, 2014
    Assignee: EchoStar Technologies L.L.C.
    Inventors: Gopi K. Manne, William Beals
  • Patent number: 8855097
    Abstract: It is described a communication end device comprising (a) a radio transceiver comprising a receiver for receiving radio signals from a transmitting network entity of a cellular telecommunication network and a transmitter (110, 120, 130) for transmitting radio signals to a receiving network entity of the cellular telecommunication network, (b) a further receiver (140) for receiving a further radio signal, and (c) a control circuit (150, 162, 164), which is coupled to the radio transceiver and to the further receiver (140). The control circuit (150, 162, 164) is configured for generating a control signal for controlling the operation of the further receiver (140). Thereby, the control signal is based on a synchronization signal being related to a time dependent transmission scheme of the transmitter (110, 120, 130) and on an information about the current operational state of the radio transceiver.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 7, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Markus Neumann
  • Patent number: 8855228
    Abstract: A transmitter beamforming technique for use in a MIMO wireless communication system determines a partial description of a reverse channel without determining a full dimensional description of the reverse channel. A correction matrix is developed from the partial description of the reverse channel and a description of the forward channel. The correction matrix is used to process signals to be transmitted via the forward channel, and a steering matrix is used to perform beamforming in the forward channel.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: October 7, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Rohit U. Nabar, Kedar Shirali, Peter Loc
  • Patent number: 8838046
    Abstract: A hybrid FDM/TDM solution for in-device coexistence interference avoidance is proposed. A user equipment (UE) comprises a first radio transceiver and a second co-located radio transceiver. The UE detects coexistence interference between the two radios based on radio signal measurement. The UE sends an IDC interference indicator to its serving base station (eNB). The UE also reports IDC information including recommendation for FDM and TDM configurations to the eNB. The eNB receives the IDC interference indicator and evaluates whether to trigger FDM-based solution to mitigate the coexistence interference. The eNB also evaluates whether to trigger TDM-based solution to mitigate coexistence interference. The evaluation is based on the recommended FDM and TDM configurations. The eNB may trigger FDM-based solution, TDM-based solution, or FDM and TDM solution based on the evaluation results of the feasibility and effectiveness of each solution.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: September 16, 2014
    Assignee: Mediatek Inc.
    Inventors: I-Kang Fu, Chieh-Chao Liu
  • Patent number: 8831164
    Abstract: Enhanced reception in a communication system is achieved by applying a time domain generated time-reversed channel response to signals transmitted from a group of transmitter to a group of receivers. The time-reversed channel response is generated from a radio frequency channel response derived from signals previously received from the group of receivers, but reversed in the time domain. The time-reversed channel response is convolved with an information signal that when transmitted in a coordinated fashion from the group of transmitters, the signals arrive at each receiver in the group of distant receiving communication devices at approximately the same time where the signals coherently combine, thereby increasing signal power at the receivers. This permits detection at a greater range or with a lower bit error rate. In addition, the many-to-many configuration enables signal power from each transmitter to be focused temporarily and spatially on each receiver.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: September 9, 2014
    Assignee: Exelis Inc
    Inventor: Ning Hsing Lu
  • Patent number: 8811887
    Abstract: It is described a method for changing the data load distribution within a telecommunication network including a first base station, a second base station and a relay node being connected to the first base station and/or to the second base station. The described method includes (a) establishing for each of a plurality of user equipments a first indirect connection to the first base station via the relay node, (b) establishing in a collective manner for each of the plurality of user equipments a second indirect connection to the second base station via the relay node, and (c) terminating in a collective manner for each of the plurality of user equipments the first indirect connection. It is further described a network element, which is adapted to carry out the above described data load redistribution method, and a computer program, which is adapted for controlling the above described data load redistribution method.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 19, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Martin Döttling, Michael Faerber, Jaroslaw Lachowski, Andreas Lobinger, Juergen Michel, Richard Waldhauser
  • Patent number: 8774706
    Abstract: A mobile wireless terminal is provided. The mobile wireless terminal includes a wireless unit, an audio codec, and a processor unit. The wireless unit is configured to connect to a wireless relay to make a voice communication with a phone network via the wireless relay, which is coupled between the mobile wireless terminal and the phone network. The audio codec is configured to process the voice communication. Further, the processor unit is coupled to the wireless unit and is configured to obtain a phone number from a user for an outgoing call to an external party in the phone network, and to connect to the wireless relay over a short-range wireless link. When the connection to the wireless relay is successful, the processor unit is configured to establish a signaling connection on an asynchronous connection-oriented logical (ACL) transport channel, and a voice connection on a synchronous connection oriented (SCO) channel between the mobile wireless terminal and the wireless relay.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: July 8, 2014
    Assignee: Shenzhen Cloud Communication Epoch Sci-Tech Ltd
    Inventors: Ning Ge, Yi Zhang, Zhiwei Meng
  • Patent number: 8767863
    Abstract: A transceiver utilizes a spatial spreading matrix to distribute two or more encoded spatial data streams to multiple antennas. The spatial spreading matrix satisfies one or more of the following two constraints: (a) the ratio of squared norms of the sum of the components of a row, for different rows of the spatial spreading matrix, is equal to a first constant sequence, and (b) the ratio of squared norms of the sum of a symbol Sl to be transmitted, when the symbol Sl is equal to 1 or ?1, multiplied by each of the components of a row, for different rows of the spatial spreading matrix, is equal to a second constant sequence.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: July 1, 2014
    Assignee: Marvell International Ltd.
    Inventors: Arul Durai Murugan Palanivelu, Hui-Ling Lou, Kedar Shirali, Rohit U. Nabar, Atul Salhotra
  • Patent number: 8761689
    Abstract: A mobile communication device includes a first radio frequency (RF) transceiver and a second RF transceiver. The first RF transceiver is operative for communications in accordance with a first radio protocol (e.g. BLUETOOTH®) using a first set of RF channels, and the second RF transceiver is operative for communications in accordance with a second radio protocol (e.g. IEEE 802.11) using a second set of RF channels. The mobile device identifies a list of noisy RF channels in the first set of RF channels, detected through operation of the first RF transceiver in accordance with the first radio protocol. The mobile device selects one of the RF channels from the second set based on the identified list of noisy RF channels. The mobile device then controls operation of the second RF transceiver in accordance with the second radio protocol for communicating data to another communication device over the selected RF channel of the second set.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: June 24, 2014
    Assignee: BlackBerry Limited
    Inventor: Mohammed Nawaf Smadi
  • Patent number: 8761717
    Abstract: An implanted medical device can be detected within an effective proximity of an electronic device by an IMD safety control module coupled with the electronic device, in response to the performance of a function by the electronic device. Performance of the function by the electronic device can be known to have the potential to cause adverse effects to operation of and/or a treatment provided by the implanted medical device within the effective proximity. The implanted medical device can be an active implanted medical device having wireless communication capabilities. Performance of the function by the electronic device can be disabled. Resolution from an operator of the electronic device can be requested. Upon receipt of the resolution, performance of the function by the electronic device can be enabled.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: June 24, 2014
    Inventor: Brian K. Buchheit
  • Patent number: 8755747
    Abstract: Techniques to control shared antenna architectures for multiple co-located radio modules are disclosed. The shared antenna architecture may include a combiner and at least one bypass switch for enabling simultaneous operations or mutually-exclusive operations of multiple transceivers. Dynamic gain control is employed to accommodate different front-end losses associated with a variety of signal paths that are achievable using the switch and combiner. Such dynamic gain control can include selecting from multiple sets of amplifier gain values that are tailored to meet the needs of the particular applications that are active at a particular time. Gain values can be chosen based upon received gain information including characteristics including a desired path loss, an application demand, a radio module type, a path configuration, and a mode of operation. By providing dynamic selection of gain values based on application demands, range and throughput of the transceivers can be attained.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 17, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Mike Robinson, James Beninghaus
  • Patent number: 8750926
    Abstract: A wireless device having a central control entity that coordinates multiple radio transceivers co-located within the same device platform to mitigate coexistence interference. The wireless device comprises an LTE transceiver, a WiFi transceiver, a BT transceiver, or a GNSS receiver. In one embodiment, the central control entity receives radio signal information from the transceivers and determines control information. The control information is used to trigger FDM solution such that the transceivers operate in designated frequency channels to mitigate co-existence interference. In another embodiment, the central control entity receives traffic and scheduling information from the transceivers and determines control information. The control information is used to trigger TDM solution such that the transceivers are scheduled for transmitting or receiving radio signals over specific time duration to mitigate co-existence interference.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: June 10, 2014
    Assignee: MediaTek Inc.
    Inventors: I-Kang Fu, Li-Chun Ko, Chi-Chen Lee, Huanchun Ye, Hong-Kai Hsu, Willaim Plumb
  • Patent number: 8737535
    Abstract: A receiver includes an antenna interface, a frequency translation bandpass filter (FTBPF), a sample and hold module, and a down conversion module. The antenna interface is operable to receive a received wireless signal from an antenna structure and to isolate the received wireless signal from another wireless signal. The FTBPF is operable to filter the received wireless signal to produce an inbound wireless signal. The sample and hold module is operable to sample and hold the inbound wireless signal in accordance with an S&H clock signal to produce a frequency domain sample pulse train. The down conversion module is operable to convert the frequency domain sample pulse train into an inbound baseband signal.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: May 27, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Hooman Darabi
  • Patent number: 8712341
    Abstract: A method and an apparatus for transmitting and receiving a signal in a communication system are provided. The method includes transmitting a signal to a receiver through one of the antennas, receiving an antenna switching indicator indicating to switch the transmitting antenna from the receiver, and switching the transmitting antenna according to the antenna switching indicator, and transmitting a signal to the receiver through a switched antenna.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: April 29, 2014
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Young Chai Ko, Hae Woon Nam, Seung Sik Eom
  • Patent number: 8706054
    Abstract: A wireless communication device uses operational parameters stored in a capabilities list to control operation of the device. The device may also provide auxiliary services, such as reception of broadcast television signals and location detection using network assisted GPS. When auxiliary services are selected, the cellular operation may cause interference with the auxiliary services. The wireless communication device includes a reduced set of capabilities to control operation of the wireless communication device when an auxiliary service is requested. The particular set of reduced capabilities may depend on the specific type of auxiliary service that has been requested. Upon termination of the auxiliary services, the full capabilities list may be restored and the operation of the wireless communication device is thereafter controlled by the full set of operational capabilities.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: April 22, 2014
    Assignee: AT&T Mobility II LLC
    Inventor: Michael Edward Prise
  • Patent number: 8698637
    Abstract: A method for analyzing hygiene habits of a user. The method comprises attaching a personal hygiene monitor to the user, using the attached personal hygiene monitor for detecting a plurality of personal hygiene events related to the user, logging the plurality of personal hygiene events to allow configuring a user hygiene profile of the user, and estimating a hygiene level of one or more hygiene habits of the user according to the user hygiene profile.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 15, 2014
    Assignee: Hyginex Inc.
    Inventor: Yossef Raichman
  • Patent number: 8693331
    Abstract: Systems and techniques for rate adaptation in wireless communication systems are described. A described technique includes generating a transmission packet parameter associated with packets transmitted by a device at a first data rate; generating a reception packet parameter associated with packets received by the device; determining a second data rate based on the transmission packet parameter and the reception packet parameter; and transmitting future packets at the second data rate.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: April 8, 2014
    Assignee: Marvell International Ltd.
    Inventors: Hemanth Sampath, Ravi Narasimhan
  • Patent number: 8693950
    Abstract: Aspects of a method and system for transmit power control techniques to reduce mutual interference between coexistent wireless networks are provided. A coexistence terminal comprising a WLAN radio and a Bluetooth radio operating as a master device may transmit signals to one or more remote controllers comprising a slave Bluetooth radio to increase transmission power when the isolation between the coexistence terminal's WLAN and Bluetooth radios is below a threshold. Link manager protocol (LMP) signals may be utilized for changing the transmission power. When the isolation increases above the threshold, signals may be generated to reduce the remote controllers' transmission power. In some instances, in addition to increasing the transmission power of remote controllers, the transmission power of the Bluetooth radio or the WLAN radio may be reduced. The reduced Bluetooth or WLAN radio transmission power may be increased when the radio isolation in the coexistence terminal increases.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: April 8, 2014
    Assignee: Broadcom Corporation
    Inventor: Prasanna Desai
  • Patent number: 8687725
    Abstract: Disclosed herein is a wireless transmission system. Transmission antennas are provided on a first communication apparatus while reception antennas individually corresponding to the transmission antennas are provided on a corresponding second communication apparatus. Each reception antenna receives a desired wave from a corresponding transmission antenna as a direct wave and receives an unnecessary wave from a different transmission antenna as a direct wave. The first communication apparatus modulates only the amplitude of a carrier signal for all channels. The second communication apparatus demodulates composite waves of desired waves and unnecessary waves received by the reception antennas by envelope detection or square-law detection and carries out correction operation for the demodulation signals based on transmission characteristics of transmission spaces between the transmission and reception antennas to acquire transmission subject signals.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: April 1, 2014
    Assignee: Sony Corporation
    Inventor: Norihito Mihoto
  • Patent number: 8688055
    Abstract: An amplifier integrated circuit (IC) including a push-pull amplifier having a push stage and a pull stage. A first loop of wire configured to form a first degeneration inductance of the push stage. A second loop of wire configured to form a first degeneration inductance of the pull stage. The first loop and the second loop are concentric. The first loop is connected to a reference potential. The second loop is connected to a supply voltage.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 1, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Brian T. Brunn, Sehat Sutardja, Xiaohua Fan, Gregory T. Uehara
  • Patent number: 8681748
    Abstract: Embodiments provide WiFi and WiMAX tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and WiMAX transceivers operating in close proximity. In particular, embodiments provide filtering techniques to reject emissions from WiMAX into WiFi, and vice versa. The filtering techniques eliminate the need for additional isolation between WiMAX and WiFi antennas (approximately 50 dB), which is beyond what is achievable in practice. Embodiments can be tailored according to different use cases of the WiFi and WiMAX transceivers (e.g., fixed CPE, portable router, smart phone with tethering).
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 25, 2014
    Assignee: Broadcom Corporation
    Inventors: Kamesh Medapalli, Erik Stauffer, Bertrand Hochwald, William Fujimoto, Yossi (Joseph) Saada, Richard Compton
  • Publication number: 20140080428
    Abstract: Mobile phones and other portable devices are equipped with a variety of technologies by which existing functionality can be improved, and new functionality can be provided. Some aspects relate to visual search capabilities, and determining appropriate actions responsive to different image inputs. Others relate to processing of image data. Still others concern metadata generation, processing, and representation. Yet others concern user interface improvements. Other aspects relate to imaging architectures, in which a mobile phone's image sensor is one in a chain of stages that successively act on packetized instructions/data, to capture and later process imagery. Still other aspects relate to distribution of processing tasks between the mobile device and remote resources (“the cloud”). Elemental image processing (e.g., simple filtering and edge detection) can be performed on the mobile phone, while other operations can be referred out to remote service providers.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 20, 2014
    Applicant: Digimarc Corporation
    Inventors: Geoffrey B. Rhoads, Nicole Rhoads
  • Patent number: 8676120
    Abstract: A wireless communication system is provided. The wireless communication system includes a wireless relay and a mobile terminal. The wireless relay is coupled to a phone network. The mobile terminal is physically coupled to the wireless relay to make a voice communication with the phone network via the wireless relay. Further, the mobile terminal and the wireless relay exchange control data and voice data corresponding to the voice communication over a short-range wireless link based on one of a transparent mode and a translation mode. A signaling connection is established on an asynchronous connection-oriented logical (ACL) transport channel between the mobile terminal and the wireless relay for exchanging the control data, and a voice connection is established on a synchronous connection oriented (SCO) channel between the mobile terminal and the wireless relay for exchanging the voice data.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: March 18, 2014
    Assignee: Shenzhen Cloud Communication Epoch Sci-Tech Ltd
    Inventors: Yi Zhang, Ning Ge, Zhiwei Meng, Guangnuan Liu
  • Patent number: 8670727
    Abstract: A method of discovering connection specific settings from a mobile unit for a telecommunications connection at a navigation device is disclosed herein. In one example embodiment, the method may include establishing a wireless connection between the mobile unit and the navigation device to retrieve preliminary information from the mobile device, querying of a plurality of entries in a database within the navigation device based on the preliminary information, attempting to establish the telecommunications connection using the queried entries, and storing the entry resulting in a successful establishment of the telecommunications connection as the connection specific settings for the mobile unit.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: March 11, 2014
    Assignee: TomTom International B.V.
    Inventors: Edwin Neef, Pieter Geelen
  • Patent number: 8666330
    Abstract: A triple winding balun is combined with multiple switch assemblies to implement an antenna switch that provides good isolation, low loss, and good linearity with only a minor increase to the overall chip footprint. The antenna switch also isolates the receiver from power surges, where the power surges may be due to electrostatic discharge, undesirable WiMAX/LTE signals, etc. An exemplary antenna switch comprises a triple winding balun, a first switch subassembly, and an optional second switch subassembly. During stand-by and transmit modes, the first and second switch subassemblies respectively isolate the receiver from transmitter output current and connect a positive voltage bias to the third winding to prevent negative voltage swings at the receiver. During the receive mode, the configuration of the first and second switch subassemblies flips to connect the receiver to the third winding of the balun and to isolate the receiver from power surges.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 4, 2014
    Assignee: ST-Ericsson SA
    Inventors: Hendrik Visser, Berend Hendrik Essink
  • Patent number: 8660603
    Abstract: A module for a mobile radio device is proposed, whose central element is a multiswitch MS, which, as desired, can connect outputs for transmission and/or reception branches SZ, EZ of different mobile radio systems to an antenna ANT. The module is suitable for a multiband operation and, optionally, additional multimode operations and includes at least one pair of outputs for transmission and reception branches of a frequency duplexed mobile radio system. Between each output of the multiswitch and the antenna, a matching element is provided, which allows an electrical matching of the branches to be connected to it. The duplex operation is carried out via separate transmission and reception filters, or on the switch via separate outputs for transmission and reception branches.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 25, 2014
    Assignee: EPCOS AG
    Inventors: Christian Block, Christian Korden, Edgar Schmidhammer
  • Patent number: 8649686
    Abstract: In a communication device using a plurality of signal enhancement mechanisms, a system and method are provided for managing signal processing power consumption. A receiver accepts a communications signal and analyzes signal integrity. In response to analyzing the signal integrity, a signal enhancement mechanism is changed, and device power consumption is modified in response to changing the signal enhancement mechanism. In one aspect, the receiver changes a receiver signal enhancement mechanism, and modifies its power consumption. For example, one or more of the following receiver signal enhancement mechanisms may be selected: forward error correction (FEC), equalization, dc voltage level, and physical coding sublayer (PCS).
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: February 11, 2014
    Assignee: Applied Micro Circuits Corporation
    Inventor: Bradley John Booth
  • Patent number: 8639185
    Abstract: A communication system includes a transmitter that applies an electric field, obtained by modulating an information signal for wideband communication, to a transmission medium. The transmitter includes a transmission electrode, a transmission circuit that outputs the information signal for the wideband communication, and a first band controller that controls a band of the information signal for the wideband communication. When the transmission medium is in contact with the transmission electrode and the transmission medium and the transmission electrode are capacitively coupled to each other, the first band controller performs control to provide a band that is necessary for a receiver to perform demodulation for the wideband communication, and when the transmission medium is not in contact with the transmission electrode, the first band controller performs control to provide a narrower band than the band that is necessary for the wideband communication.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: January 28, 2014
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hiroyuki Hebiguchi, Shigetoshi Matsuta, Masaru Koishi, Hideyuki Nebiya
  • Patent number: 8639195
    Abstract: The application relates to a method of enabling a high voltage input and/or output in a standard IC process, the high voltage being higher than specified for I/O transistors of the IC process. The application further relates to a transceiver IC and to an article of manufacture comprising a transceiver IC. The object of the present application is to provide an integrated circuit in a standard IC process that supports larger than specified input/output swings. The problem is solved in that providing that high voltage inputs or outputs of an IC implemented in said standard IC process comprise passive impedance transformation circuitry. This has the advantage of facilitating the use of a standard IC process for higher than specified voltage I/Os. The standard IC process is preferably a CMOS or BiCMOS semiconductor process. The invention may e.g. be used for low power communication devices, e.g. portable devices having a wireless interface, e.g. listening devices, e.g. hearing instruments.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: January 28, 2014
    Assignee: Oticon A/S
    Inventor: Kåre Tais Christensen
  • Patent number: 8620226
    Abstract: A method for operating an integrated transceiver, comprising coupling an operating transmitter and an operating receiver within the integrated wideband receiver, inputting a signal into the operating transmitter, performing a first conversion of the signal, wherein the signal is converted into a second signal, transmitting the second signal into the operating receiver, performing a second conversion of the signal, wherein the signal is converted into a third signal, transmitting the third signal into the operating transmitter, and adjusting the operating transmitter.
    Type: Grant
    Filed: September 15, 2012
    Date of Patent: December 31, 2013
    Assignee: BlackBerry Limited
    Inventors: Bradley John Morris, Edwin M. Sich
  • Patent number: 8615204
    Abstract: A wireless communication device includes a core logic, first and second transceiver chains, first and second antennas, and an interference processor. The core logic is coupled to both the first and second transceiver chains, which in turn are coupled to the first and second antennas, respectively. The interference processor is coupled between the first and second transceiver chains. To calibrate circuitry within the first transceiver chain using first signals generated in the first transceiver chain while the second transceiver chain is transmitting second signals via the second antenna, the interference processor connects the transmit circuit of the second transceiver chain to the receive circuitry of the first transceiver chain to form an interference feedback path that can be used to compensate for unwanted components of the second signal undesirably picked up by the first antenna.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 24, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Paul J. Husted