Selectively Actuated Or Controlled Patents (Class 455/140)
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Patent number: 11853647Abstract: Systems and processes for proactive assistance based on dialog communication between devices are provided. In one example process, while voice communication between an electronic device and a second electronic device is established, a stream of audio data associated with the second electronic device can be received. In response to detecting a user input, a text representation of speech contained in a portion of the stream of audio data can be generated. The process can determine whether the text representation contains information corresponding to one of a plurality of types of information In response to determining that the text representation contains information corresponding to one of a plurality of types of information, one or more tasks based on the information can be performed.Type: GrantFiled: January 27, 2021Date of Patent: December 26, 2023Assignee: Apple Inc.Inventors: Mathieu Jean Martel, Thomas Deniau
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Patent number: 11032825Abstract: In one embodiment, an apparatus includes a memory comprising instructions and a processor in communications with the memory. The processor is configured to execute the instructions to determine a reference signal received power of user equipment (UE). In response to determining that the reference signal received power is less than or equal to a threshold, it is determined that the UE supports sending a physical random access channel, receiving a random access response message, sending a random access response acknowledgment message, and receiving a contention resolution message. In response to determining that the reference signal received power is above the threshold, it is determined that the UE supports sending the physical random access channel, and receiving the contention resolution message, and it is determined that the UE does not support sending the random access response acknowledgment message and receiving the random access response message.Type: GrantFiled: September 3, 2020Date of Patent: June 8, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zheng Yu, Brian Classon, Fang Nan, Xiangdong Zhang
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Patent number: 10923809Abstract: A communication apparatus, an electronic apparatus and an antenna adjustment method thereof are provided. The communication apparatus includes an antenna system, a tuning portion and a switch circuit. The antenna system includes at least two antenna units. The tuning portion is disposed between the at least two antenna units and includes at least two branch units. The switch circuit is coupled to the tuning portion. The switch circuit switches a conduction from a first one of the branch units to a second one of the branch units according to a switching signal. The switching signal is related to performances of the antenna system. Accordingly, a dynamic and flexible adjustment mechanism can be provided to increase throughput and improve users' internet experience.Type: GrantFiled: April 2, 2019Date of Patent: February 16, 2021Assignee: COMPAL ELECTRONICS, INC.Inventors: Liang-Che Chou, Li-Chun Lee, Yu-Chun Hsieh, Mau-Chi Sun, Jui-Hung Lai, Wen-Feng Tsai, Chih-Chien Liu
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Patent number: 10826726Abstract: A wireless device includes first and second analog radio modules, first and second medium access control modules configured to control access to a digital network via the first and second analog radio modules, respectively, first and second baseband modules configured to convert between analog signals at the first and second analog radio modules, respectively, and digital signals at the first and second medium access control module, respectively, and circuitry configured to selectably coordinate the first and second medium access control modules to create a single-channel configuration for use by the wireless device to transmit and receive radio signals over a wireless interface, by setting the first and second analog radio modules to operate on a common frequency, and by commonly controlling the first and second baseband modules to convert common packets between analog and digital signals transmitted to or received from respective medium access control modules.Type: GrantFiled: August 20, 2019Date of Patent: November 3, 2020Assignee: Marvell Asia Pte, Ltd.Inventor: Hongyuan Zhang
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Patent number: 10448205Abstract: Distributed antenna systems provide location information for client devices communicating with remote antenna units. The location information can be used to determine the location of the client devices relative to the remote antenna unit(s) with which the client devices are communicating. A location processing unit (LPU) includes a control system configured to receive uplink radio frequency (RF) signals communicated by client devices and determines the signal strengths of the uplink RF signals. The control system also determines which antenna unit is receiving uplink RF signals from the device having the greatest signal strength.Type: GrantFiled: January 22, 2018Date of Patent: October 15, 2019Assignee: Corning Optical Communications LLCInventor: Michael Sauer
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Patent number: 10194194Abstract: The disclosure provided a tuner circuit having a zero power loop through (ZPLT) circuit that is capable of providing a loop through path even when no power is being supplied or without a standalone power supply. The tuner circuit includes an input terminal, an output terminal, a ZPLT circuit, and an internal resistor. The input terminal receives a radio frequency (RF) signal. The output terminal is connected to a subsequent tuner. The ZPLT is connected between the input terminal and the output terminal. The internal and an external resistor connected between the turner circuit and subsequent tuner form a voltage divider to divide a bias found at the output terminal to enable the ZPLT circuit for providing a loop through path to deliver the RF signal to the output terminal when the tuner circuit is not powered by a standalone power or a low noise amplifier is enabled.Type: GrantFiled: May 16, 2017Date of Patent: January 29, 2019Assignee: ALi CorporationInventors: Alfredo Bautista, Claude-Alain Gobet, Christian Marc Eichrodt
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Patent number: 9853681Abstract: A user equipment device (UE) may be configured to collect first performance information from antennas of a first plurality of antennas. The first plurality of antennas may be coupled to a first radio of the UE that may be configured to perform wireless communications according to a first RAT. The UE may determine, based on at least the first performance information, a highest performing antenna of the first plurality of antennas to use for communications according to the first RAT. Additionally, the UE may determine, also based on at least the first performance information, a first antenna of a second plurality of antennas to use for communications according to a second RAT. The second plurality of antennas may be coupled to a second radio of the UE that may be configured to perform wireless communications according to the second RAT.Type: GrantFiled: September 30, 2015Date of Patent: December 26, 2017Assignee: Apple Inc.Inventors: Vinay R. Majjigi, Syed Aon Mujtaba, Xiaowen Wang
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Patent number: 9634705Abstract: A receiver circuit comprising a transformer arrangement comprising a transformer structure, multiple and distributed receiver units arranged to be connected to one and same antenna via the transformer arrangement and arranged to operate on the same frequency and bandwidth as each other, wherein the transformer arrangement is arranged to input the antenna signal and to output signals at different output ports for the respective receiver unit, and a combiner circuit arranged to combine outputs of the multiple receiver units such that the combiner circuit outputs a combined signal, and corresponding communication apparatus, method and computer program are disclosed.Type: GrantFiled: August 16, 2013Date of Patent: April 25, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventor: Fenghao Mu
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Patent number: 9532329Abstract: Distributed antenna systems provide location information for client devices communicating with remote antenna units. The location information can be used to determine the location of the client devices relative to the remote antenna unit(s) with which the client devices are communicating. A location processing unit (LPU) includes a control system configured to receive uplink radio frequency (RF) signals communicated by client devices and determines the signal strengths of the uplink RF signals. The control system also determines which antenna unit is receiving uplink RF signals from the device having the greatest signal strength.Type: GrantFiled: October 2, 2015Date of Patent: December 27, 2016Assignee: Corning Optical Communications LLCInventor: Michael Sauer
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Patent number: 9413443Abstract: An apparatus includes a diversity antenna, an additional antenna, and at least one processor. The diversity antenna is configured to provide data communication according to a first communication scheme. The additional antenna is configured to provide data communication according to one of the first communication scheme and a second communication scheme different from the first communication scheme. The at least one processor is configured to: detect a condition affecting performance of the diversity antenna, and determine, in response to detection of the condition, whether to switch from utilization of the diversity antenna to utilization of the additional antenna.Type: GrantFiled: June 18, 2014Date of Patent: August 9, 2016Assignee: Samsung Electronics Co., Ltd.Inventor: Jin Kim
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Patent number: 9306655Abstract: Power consumption is reduced in a diversity receiver. A diversity receiver (10) comprises a condition determination circuit (26) determining whether a predefined condition is satisfied; and a control circuit (28) suspending diversity reception if the condition determination circuit determines that the predefined condition is satisfied.Type: GrantFiled: July 19, 2011Date of Patent: April 5, 2016Assignee: NTT DoCoMo, Inc.Inventor: Yukihiko Okumura
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Patent number: 9237290Abstract: Provided is a display apparatus for receiving millimeter waves or terahertz waves from a transmitter under a non-line-of-sight condition, the apparatus including: a plurality of diversity boards that are installed in a bezel of the display apparatus, receive millimeter waves or terahertz waves having different paths, convert the received waves into a plurality of baseband signals, and sense output powers of the plurality of baseband signals; a controller to output a control signal for selecting a diversity board of a maximum output power from the output powers sensed by the plurality of diversity boards; a selector to connect the diversity board of the maximum output power among the plurality of diversity boards to an image converter by the control signal; and the image converter to convert an output of the selector into image data for displaying.Type: GrantFiled: November 15, 2013Date of Patent: January 12, 2016Assignee: Korea Advanced Institute of Science and TechnologyInventors: InnYeal Oh, ChulSoon Park
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Patent number: 9144003Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus preserves a state of a user equipment (UE) in an anchor evolved node B (eNB), wherein the anchor eNB is one of a set of connected cells, the UE being in a connected mode. Each cell of the connected set has a corresponding coverage area. The apparatus then maintains the state of the UE in the anchor eNB when the UE moves from a coverage area of the anchor eNB to a coverage area of another one of the cells from the set of connected cells.Type: GrantFiled: March 12, 2013Date of Patent: September 22, 2015Assignee: QUALCOMM IncorporatedInventors: Andrei Dragos Radulescu, Rajat Prakash, Peerapol Tinnakornsrisuphap, Damanjit Singh, Chirag Sureshbhai Patel
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Patent number: 9065535Abstract: The present disclosure is directed to adaptive antenna selection. In general, devices consistent with the present disclosure may be configured to adapt their antenna configuration to sensed device conditions. In one embodiment, an example device may comprise a communication module, a plurality of antennas, at least one sensor and an antenna selection module. The communication module may be configured to send and receive information via at least wireless communication. The plurality of antennas may be configured to conduct the wireless communication, while the sensors may be configured to sense device conditions. The antenna selection module may be configured to cause at least one antenna in the plurality of antennas to be coupled to the communication module based on the device conditions.Type: GrantFiled: November 16, 2012Date of Patent: June 23, 2015Assignee: Intel CorporationInventors: Hong Wong, Wah Yiu Kwong
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Publication number: 20150056936Abstract: A set of receiver path circuits is allocated for processing a radio-frequency (RF) signal provided by receive antennas coupled to the receiver path circuits. The RF signal may belong to a first signal class, such as Wi-Fi. A first gain control signal is applied to each of the allocated receiver path circuits to condition a signal level of the RF signal for the first signal class. A second gain control signal is applied to another set of receiver path circuits coupled to the receive antennas to condition the RF signal of a second signal class. First receive gain control signals are generated from the RF signals of the first signal class by the allocated set of the receiver path circuits. The first receive gain control signals are configured to optimize the signal level for processing the first signal class. A second receive gain control signal is generated to optimize the signal level of the RF signal for the second signal class.Type: ApplicationFiled: August 22, 2013Publication date: February 26, 2015Applicant: Cisco Technology, Inc.Inventors: Raghuram Rangarajan, David Kloper, Paul J. Stager
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Patent number: 8965313Abstract: An enhanced radio system is disclosed that provides for the capture and playback of one or more radio stations. A user may tune to a station, scan through stations, rewind through missed content (even while the system is off), and fast-forward through undesired content, while downloading and uploading audio content, and sending content to another user. A user may rate content, and be notified when that content is played on any station, with undesirable content skipped and desirable content saved, or station recommendations made. Support for multiple sets of configuration information to allow use by multiple listeners and in multiple locations may be provided. Optionally provided are security features to prevent the unauthorized downloading, uploading, and saving of copies of content, other radio related and content related information, a karaoke mode, integration with a telephone with the radio, or reporting of usage information to a collection facility.Type: GrantFiled: February 19, 2008Date of Patent: February 24, 2015Assignee: 3D Radio LLCInventors: Michael D. Ellis, Caron S. Ellis
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Patent number: 8948702Abstract: An antenna system and method utilize an evaluation branch circuit and an implementation branch circuit. These circuits are each connected to both a first antenna input and a second antenna input. An output of the evaluation branch circuit is in communication with a controller while an output of the implementation branch circuit is in communication with a receiver. Each branch circuit includes at least one signal conditioner to change an electrical characteristic of RF signals received from antennas via the antenna inputs. The evaluation branch circuit, controlled by the controller, changes the electrical characteristics of the RF signals in a variety of different ways to discover an optimized evaluation RF signal. Once the optimized evaluation RF signal is determined, the implementation branch circuit is controlled, by the controller, to produce an optimized implementation RF signal in accordance with that discovered by the evaluation branch circuit.Type: GrantFiled: June 15, 2010Date of Patent: February 3, 2015Assignee: AGC Automotive Americas R&D, Inc.Inventors: Ming Lee, Wladimiro Villarroel, Kwan-ho Lee, Yasutaka Horiki
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Patent number: 8929285Abstract: A system and method for providing the ability to discover the capabilities of a user's computer to determine whether it is capable of supporting more than one wireless protocol simultaneously is provided. A computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports at least two specific wireless protocols and checking a computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports both wireless protocols simultaneously. The techniques for determining the computing device's compatibility may include comparing lists of protocol requirements to lists of system capabilities and/or generating test signals by the system according to the protocol.Type: GrantFiled: September 26, 2011Date of Patent: January 6, 2015Assignee: Microsoft CorporationInventors: Amer A. Hassan, Deyun Wu, Hui Shen, Christian Huitema, Thomas W. Kuehnel
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Publication number: 20140308910Abstract: A receiver control circuit includes a first receiver, a second receiver, a first light sensor, a second light sensor, and a determination circuit. The first light sensor detects light transmitted to the first receiver. The second light sensor detects light transmitted to the second receiver. The determination circuit compares an intensity of the light detected by the first light sensor with an intensity of the light detected by the second light sensor. The determination circuit further selectively activates the first receiver when the intensity of the light detected by the first light sensor is less than the intensity of the light detected by the second light sensor, or activates the second receiver when the intensity of the light detected by the first light sensor is greater than the intensity of the light detected by the second light sensor.Type: ApplicationFiled: September 27, 2013Publication date: October 16, 2014Applicant: CHIUN MAI COMMUNICATION SYSTEMS, INC.Inventor: CHIA-WEI TSAI
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Patent number: 8862070Abstract: A Mobile Station (MS) is operable to select a precoding matrix in a multi-antenna wireless communication system. The method includes receiving, from a serving Base Station (BS), information on a precoding matrix of which use is prohibited and a precoding matrix to be used by a neighbor BS, estimating an interference signal for the precoding matrix to be used by the neighbor BS, and selecting a precoding matrix to be used by the serving BS by considering the estimated interference signal from the remaining precoding matrixes except for the precoding matrix of which use is prohibited among precoding matrixes used by the serving BS.Type: GrantFiled: August 20, 2009Date of Patent: October 14, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yu-Seok Kim, Eun-Yong Kim, Yung-Soo Kim, Sang-Min Lee, Eun-Seok Ko
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Patent number: 8836591Abstract: To improve the signal/noise ratio of a radio reception system intended for a vehicle, comprising multiple antennas having marked radiation characteristics with a directional effect, in each instance, it is proposed to orient the antennas in the vehicle at spatial sectors, with the proviso that their individual radiation characteristics supplement one another to produce a specific required radiation characteristic. For this purpose, the signals of the antennas are combined in an active combiner, with the interposition of amplifiers, and a sum signal is passed to a receiver by way of an output-side line.Type: GrantFiled: September 18, 2009Date of Patent: September 16, 2014Assignee: Delphi Delco Electronics Europe GmbHInventor: Christian Heuer
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Patent number: 8831697Abstract: In one embodiment, a mobile communication device comprises a first antenna; a second antenna; and a controller, based on a detected obstruction, for selecting one of said first antenna or said second antenna.Type: GrantFiled: January 26, 2012Date of Patent: September 9, 2014Assignee: BlackBerry LimitedInventors: Vytautas Robertas Kezys, Yihong Qi
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Patent number: 8811924Abstract: A diversity receiver includes a plurality of receiver circuits that are configured to receive and process the received radio frequency signals. A channel estimator is coupled to at least one of the plurality of receiver circuits and is configured to determine at least one channel estimation value for the received radio frequency signals. A controller is coupled to the channel estimator and to at least one of the plurality of receiver circuits and is configured to selectively activate or deactivate the at least one of the plurality of receiver circuits based on the determined at least one channel estimation value.Type: GrantFiled: January 23, 2013Date of Patent: August 19, 2014Assignee: Intel Mobile Communications GmbHInventor: Reinhard Rueckriem
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Publication number: 20140220916Abstract: A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes.Type: ApplicationFiled: April 9, 2014Publication date: August 7, 2014Applicant: Apple Inc.Inventors: Syed A. MUJTABA, Xiaowen WANG, Young Jae KIM, Vinay R. MAJJIGI, Johnson O. SEBENI, Tahir SHAMIM, Karthik ANANTHARAMAN, Kee-Bong SONG, Romain TRILLING
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Patent number: 8774871Abstract: Provided is a vibration apparatus, method and computer-readable medium generating vibrations and ultrasonic waves. The vibration apparatus, method and computer-readable medium may generate the vibrations or the ultrasonic waves in accordance with a first control signal and a second control signal each having a frequency band different from each other.Type: GrantFiled: September 10, 2010Date of Patent: July 8, 2014Assignees: Samsung Electronics Co., Ltd., Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Jae Joon Han, Won-Chul Bang, Sang-Youn Kim, Tae Heon Yang
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Patent number: 8756645Abstract: Configuring a generic adaptable reconfigurable digital receiver having a programmable signal conditioner includes specifying a number of output RF channels; specifying an RF bandwidth of an output channel; and selecting a digital to analog sampling rate of a digital to analog convertor of the programmable signal conditioner as a function of the RF bandwidth of the output channel using a processor/demux of the generic adaptable reconfigurable digital receiver.Type: GrantFiled: June 18, 2012Date of Patent: June 17, 2014Assignee: Aurora Networks, Inc.Inventors: Krzysztof Pradzynski, Sudhesh Mysore, Oleh Sniezko
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Patent number: 8749355Abstract: An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.Type: GrantFiled: November 24, 2010Date of Patent: June 10, 2014Assignee: LG Electronics Inc.Inventors: Seung Hyup Ryoo, Jin Tae Kim, Sang Cheol Min, Hee Seung Kim, Jae Joon Park, Dong Hyun Lee, Yong Sam Kim
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Patent number: 8706066Abstract: A system for configuring communication paths in a radio communications system including a plurality of radios, a plurality of antennas and radio frequency distribution communications equipment in communication with the plurality of radios and antennas. The configuring system includes at least one of (1) a graphical user interface display window including a list of radios and a list of paths by which the radios communicates with the antennas via the radio frequency distribution communications equipment, and (2) a block diagram including a plurality of radios, a plurality of antennas and paths by which the plurality of radios communicates with the plurality of antennas via the radio frequency distribution communications equipment. The system further includes means for changing at least one path displayed in at least one of the display window and the block diagram. Also disclosed are methods for implementing the system.Type: GrantFiled: July 2, 2013Date of Patent: April 22, 2014Assignee: R F Products, Inc.Inventor: Frank Arlotta
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Patent number: 8699967Abstract: A method for uplink transmit diversity enhancement is disclosed. A subset of two or more potential uplink transmission configurations are determined. A subset of potential uplink transmission configurations is evaluated. An uplink transmission configuration is selected based on the evaluation. Metrics of the selected uplink transmission configuration are determined. The selected uplink transmission configuration is applied for an extended use period.Type: GrantFiled: August 27, 2010Date of Patent: April 15, 2014Assignee: QUALCOMM IncorporatedInventor: Jason Frank Hunzinger
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Publication number: 20140094131Abstract: A mobile communications radio receiver for multiple radio network operation includes an RF unit for generating a first down-converted signal from a radio signal received from a first radio network and a second down-converted signal from a radio signal received from a second radio network. Further, it includes a first receiver comprising a paging indicator channel demodulator for demodulating a paging indicator channel of the first radio network based on the first down-converted signal, and a second receiver including a pilot channel demodulator for demodulating a pilot channel of the second radio network based on the second down-converted signal. A first data connection is configured to couple paging information contained in the second down-converted signal to an input of the paging indicator channel demodulator of the first receiver.Type: ApplicationFiled: November 19, 2013Publication date: April 3, 2014Inventors: Thorsten Clevorn, Herbert Dawid, Bertram Gunzelmann
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Patent number: 8644427Abstract: A radio frequency receiver with dual band reception and dual analog-to-digital converters (ADCs) can be configured to operate in a single channel mode or a dual channel mode to receive a single RF input channel or two RF input channels at the same or different frequency bands. In the single channel mode, the dual ADCs can be used to improve the performance of the receiver for the single input signal or the dual ADCs can be configured for reduced power consumption. In the dual channel mode, the dual ADCs operate on the individual RF input signals to realize dual band reception. In one embodiment, the receiver is configured for asymmetric dual band reception to receive a wideband input signal on a first input signal path and a narrow band input signal on a second input signal path.Type: GrantFiled: August 10, 2011Date of Patent: February 4, 2014Assignee: SiGear Europe SarlInventors: Alain-Serge Porret, Friederich Mombers, Melly Thierry
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Patent number: 8639304Abstract: In one embodiment, a mobile communication device comprises a first antenna; a second antenna; a transceiver for processing a received signal and generating a transmit signal; and a controller, based on a detected condition of one of the first antenna or second antenna, for selecting the other one of said first antenna or said second antenna and coupling the transmit signal to the selected other one of said first antenna or said second antenna.Type: GrantFiled: September 13, 2012Date of Patent: January 28, 2014Assignee: BlackBerry LimitedInventors: Vytautas Robertas Kezys, Yihong Qi
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Patent number: 8619749Abstract: A distributed architecture system for receiving radio frequency (RF) signals includes a receiving unit receiving a plurality of RF signals. The receiving unit includes means for combining the plurality of RF signals into a multiplexed signal. A head unit receives and separates the multiplexed signal into a plurality of information signals. The head unit prepares the information signals for presentation to a user. The head unit is disposed remotely from the receiving unit. A multiplexed link carries the multiplexed signal from the receiving unit to the head unit.Type: GrantFiled: September 20, 2005Date of Patent: December 31, 2013Assignee: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North AmericaInventor: Hans Alfred Troemel, Jr.
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Publication number: 20130324055Abstract: A reconfigurable RF routing module may include M RF inputs and N RF outputs, wherein M is greater than N; a plurality of RF switches arranged to select between incoming RF signals; a plurality of RF combiners arranged to combine RF signals to a single RF signal; and a plurality of RF couplers, each associated with a transfer switch and a specified attenuation, wherein the specified attenuation of each one of the plurality of RF couplers is selected so that the RF inputs of each one of the plurality of the RF combiners are combined in a balanced manner, wherein the switches, the combiners, and the RF couplers are configured to route any of 1 to M of the inputs into each of the N outputs.Type: ApplicationFiled: February 25, 2013Publication date: December 5, 2013Applicant: Magnolia Broadband Inc.Inventors: Kenneth KLUDT, Haim HAREL
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Publication number: 20130288624Abstract: Apparatus and methods for implementing “intelligent” receive diversity management in e.g., a mobile device. In one implementation, the mobile device includes an LTE-enabled UE, and the intelligent diversity management includes selectively disabling receive diversity (RxD) in that device upon meeting a plurality of criteria including (i) a capacity criterion, and (ii) a connectivity criterion. In one variant, the capacity criterion includes ensuring that an achievable data rate associated with a single Rx (receive) chain is comparable to that with RxD.Type: ApplicationFiled: February 27, 2013Publication date: October 31, 2013Applicant: Apple Inc.Inventors: Syed Aon Mujtaba, Xiaowen Wang, Tarik Tabet, Kee-Bong Song, Youngjae Kim, Yuchul Kim
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Patent number: 8559545Abstract: A channel information feedback method adapted in a receiving end of a multiuser multiple input multiple output (MU MIMO) system has following steps. A subspace matrix and a magnitude matrix related to a transmitting end of the MU MIMO system are obtained according to a channel matrix corresponding to the receiving end. A first quantization is performed on the subspace matrix to generate a quantized subspace matrix. A second quantization is performed on an auxiliary information matrix to generate a quantized auxiliary information matrix, where the auxiliary information matrix is corresponding to the magnitude matrix and a residual subspace matrix, and the residual subspace matrix includes residual subspace information after the first quantization is performed on the subspace matrix. The quantized subspace matrix and the quantized auxiliary information matrix are fed back to the transmitting end through an uplink channel.Type: GrantFiled: April 29, 2011Date of Patent: October 15, 2013Assignee: Industrial Technology Research InstituteInventors: Chun-Yao Chen, Hsuan-Jung Su
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Patent number: 8503954Abstract: A system for configuring communication paths in a radio communications system including a plurality of radios, a plurality of antennas and radio frequency distribution communications equipment in communication with the plurality of radios and antennas. The configuring system includes at least one of (1) a graphical user interface display window including a list of radios and a list of paths by which the radios communicates with the antennas via the radio frequency distribution communications equipment, and (2) a block diagram including a plurality of radios, a plurality of antennas and paths by which the plurality of radios communicates with the plurality of antennas via the radio frequency distribution communications equipment. The system further includes means for changing at least one path displayed in at least one of the display window and the block diagram. Also disclosed are methods for implementing the system.Type: GrantFiled: April 12, 2011Date of Patent: August 6, 2013Assignee: R F Products, Inc.Inventor: Frank Arlotta
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Patent number: 8503929Abstract: Certain aspects of a method and system for providing wireless communication may comprise encoding within a single chip, FM audio data received by a FM radio. The encoded received FM audio data may be translated within the single chip to a Bluetooth compatible format. The translated received FM audio data may be communicated to at least one off-chip Bluetooth enabled device via the Bluetooth radio via at least one of the following: a synchronous connection oriented (SCO) link, an extended SCO (eSCO) link, and an advanced audio distribution profile (A2DP) link. The received FM audio data may be communicated via a dedicated link that couples the FM radio to a PCM interface that handles the encoding.Type: GrantFiled: November 22, 2005Date of Patent: August 6, 2013Assignee: Broadcom CorporationInventors: Brima Ibrahim, Mitchell Buznitsky, Angel Polo, John Walley, Theodore A. Trost
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Patent number: 8498594Abstract: A diversity receiver includes a plurality of antennas to receive radio frequency signals. A plurality of receiver circuits are each coupled to a respective one of the plurality of antennas to process the received radio frequency signals, and a channel estimator is coupled to at least one of the receiver circuits to determine at least one of channel estimation values for the received radio frequency signals. A controller is coupled to the channel estimator and to at least one of the receiver circuits and selectively activates or deactivates the at least one receiver circuit based on the determined at least one channel estimation value.Type: GrantFiled: March 30, 2011Date of Patent: July 30, 2013Assignee: Intel Mobile Communications GmbHInventor: Reinhard Rueckriem
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Patent number: 8494041Abstract: Methods and apparatus are provided for performing equalization of communication channels. In an embodiment of the invention, at least one tap can be selected from a set of feedforward taps of feedforward filter circuitry, where each tap of the selected at least one tap has a magnitude that is greater than or substantially equal to a magnitude of any tap of the set of feedforward taps that is not in the selected at least one tap. In addition, at least one tap can be added to a set of taps of feedback filter circuitry in communication with the feedforward filter circuitry. The invention advantageously allows for more efficient and reliable equalization of communication channels.Type: GrantFiled: May 23, 2012Date of Patent: July 23, 2013Assignee: Marvell International Ltd.Inventor: Kok-Wui Cheong
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Patent number: 8483125Abstract: A method for generating a high speed downlink packet access (HSDPA) communication comprises concatenating multiple data packets and attaching a header to the concatenated multiple data packets to form an extended multiplexed data packet. The header comprises an indication of a size of each of the multiple data packets. The extended multiplexed data packet is then transmitted to a remote station on a downlink channel.Type: GrantFiled: April 27, 2007Date of Patent: July 9, 2013Assignee: Intellectual Ventures Holding 81 LLCInventor: Peter Jonathon Legg
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Patent number: 8428512Abstract: A method and system sharing a Bluetooth processor for FM functions are provided. The single chip may comprise an integrated Bluetooth radio, an integrated FM radio, and processor system. A processor in the processor system may be utilized for Bluetooth and FM data processing and may time multiplex between the Bluetooth and FM data processing based on interrupt signals. The processor may operate in a low power mode based on a clock signal generated from a low power oscillator. When a Bluetooth interrupt signal is received, the processor may enable Bluetooth data processing that may be based on a Bluetooth clock signal. When an FM interrupt signal is received, the processor may enable FM data processing that may be based on an FM clock signal. When data processing is complete, the processor may return to the low power mode operation.Type: GrantFiled: November 22, 2005Date of Patent: April 23, 2013Assignee: Broadcom CorporationInventors: Brima Ibrahim, Mitchell Buznitsky, John Walley, Ahmadreza Rofougaran, Bojko Marholev, Angel Polo, Asif Grushkevich
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Patent number: 8391800Abstract: Disclosed is a multiple sensor system including a plurality of different sensor devices to acquire respective signals sensed from a single signal source, and a signal acquisition apparatus to recover an original signal generated from the signal source. The signal acquisition apparatus recovers the original signal by applying joint recovery, based on characteristics and correlations between the respective sensor devices, to compressive sensing signals independently compressively sensed and transmitted from the respective sensor devices. At this time, a sensing matrix F prearranged with the respective sensor devices and channel information C between the original signal and each sensor device are used for joint recovery.Type: GrantFiled: September 30, 2011Date of Patent: March 5, 2013Assignee: Gwangju Institute of Science and TechnologyInventors: Heung-No Lee, Junho Lee, Sangjun Park
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Patent number: 8385866Abstract: A diversity receiver includes a plurality of receiver circuits that are configured to receive and process the received radio frequency signals. A channel estimator is coupled to at least one of the plurality of receiver circuits and is configured to determine at least one channel estimation value for the received radio frequency signals. A controller is coupled to the channel estimator and to at least one of the plurality of receiver circuits and is configured to selectively activate or deactivate the at least one of the plurality of receiver circuits based on the determined at least one channel estimation value.Type: GrantFiled: April 1, 2011Date of Patent: February 26, 2013Assignee: Intel Mobile Communications GmbHInventor: Reinhard Rueckriem
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Patent number: 8385865Abstract: The wireless receiver of the present invention accommodates dual-carrier Evolved EDGE without significantly impacting existing receiver architectures. The inventive receiver comprises a shared local oscillator and two image-rejecting downconverters. The local oscillator generates a local oscillator frequency between two carrier frequencies of adjacent radio channels. The receiver receives a signal in each of the adjacent radio channels. In a dual-carrier mode, a first image-rejecting downconverter uses the local oscillator frequency to downconvert a first signal received in the first radio channel while rejecting a second signal received in the second radio channel. A second image-rejecting downconverter uses the local oscillator frequency to downconvert the second signal while rejecting the first signal.Type: GrantFiled: August 12, 2008Date of Patent: February 26, 2013Assignee: Sony Mobile Communications ABInventors: William O. Camp, Jr., Toby John Bowen, Leland Scott Bloebaum
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Patent number: 8380149Abstract: According to an embodiment, a DC offset canceller includes a first DA converter, a first adder, an amplifier, a comparator, an averaging circuit, and a successive approximation register. The first DA converter is configured to DA-convert first correction data into a first correction voltage. The first adder is configured to add an input signal and the first correction voltage to output a first added signal. The amplifier is configured to amplify the first added signal to output an amplified signal. The comparator is configured to compare the amplified signal and a reference voltage to output a comparison result. The averaging circuit is configured to receive the comparison results of the comparator to obtain a majority decision result by performing majority decision on logical values of the comparison results in a predetermined time period.Type: GrantFiled: September 14, 2010Date of Patent: February 19, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Katsuya Nonin
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Patent number: 8340025Abstract: In one illustrative example, a mobile communication device receives and decodes a plurality of packet data bursts over a packet data channel of a serving cell. While receiving and decoding the packet data bursts, the mobile communication device also receives and decodes a plurality of broadcast data bursts over a broadcast control channel of a neighbor cell. When a time conflict exists between receiving and decoding at least one of the packet data bursts and receiving and decoding at least one of the broadcast data bursts, the mobile communication device receives and decodes the at least one packet data burst instead of the at least one broadcast data burst when no imminent call drop between the mobile communication device and the serving cell is identified.Type: GrantFiled: May 27, 2010Date of Patent: December 25, 2012Assignee: Research In Motion LimitedInventor: Matthias Wandel
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Patent number: 8340570Abstract: A method for controlling a portable audio device using radio frequency tuning is provided. A radio signal transmitter device communicatively coupled to the portable audio device transmits an audio signal of an audio file on a first radio frequency channel, a forward control signal on a second radio frequency channel, and a backward control signal on a third radio frequency channel to a radio signal receiver device. The portable audio device determines whether an audio output of the forward control signal is received by an audio receiver device. In response to determining that the portable audio device did receive the audio output of the forward control signal using the audio receiver device, the portable audio device plays a next audio file in a play list.Type: GrantFiled: May 13, 2010Date of Patent: December 25, 2012Assignee: International Business Machines CorporationInventors: Pamela A. Nesbitt, Ori Pomerantz
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Patent number: 8326374Abstract: Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, a remote unit in accordance with the invention includes a spatial processing unit to process signals received by a plurality of antennas.Type: GrantFiled: August 8, 2011Date of Patent: December 4, 2012Assignee: Intel CorporationInventors: Craig H. Barratt, Athanasios A. Kasapi
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Patent number: 8320858Abstract: An apparatus and method for receiving and processing multiple independent, uncorrelated RF signals is presented. The apparatus includes a Hybrid-Direct Conversion Receiver incorporating front end branches, protocol-specific digital processing branches, an interference detector, a correlator, and an offset control for controlling oscillator sources. The front end branches each contain a preselector that filters received signals and a mixer that down converts the received signal to an IF offset from a reference frequency by a unique offset. The bandwidth of an IF processor is partitioned into sub-channels corresponding to the different offsets and is wider than the combination of the sub-channels. The interference detector and correlator determine whether a particular desired signal is degraded by interference signals and select a new sub-channel. This information is provided to the offset control, which adjusts a LO source coupled to the corresponding down mixer accordingly.Type: GrantFiled: November 22, 2010Date of Patent: November 27, 2012Assignee: Motorola Solutions, Inc.Inventors: Charles R. Ruelke, Ariel L. Galan, Yadunandana N. Rao