Patents Issued in June 3, 2014
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Patent number: 8744346Abstract: An apparatus for communicating between a mobile device, and a plurality of transceivers. The apparatus includes a first transceiver which transmits to the mobile device on any one of a plurality of channels. The apparatus further includes a second transceiver which transmits to the mobile device on any one of the plurality of channels.Type: GrantFiled: April 2, 2012Date of Patent: June 3, 2014Assignee: Telcom Ventures, LLCInventors: Rajendra Singh, George Ron Olexa
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Method of routing incoming application data in an NFC chipset, for identification of the application
Patent number: 8744347Abstract: A method for routing incoming or outgoing application data in an NFC system includes an NFC interface circuit performing contactless data sending and receiving. The routing of incoming application data received by the interface circuit includes routing at least a first portion of the incoming application data to a destination point located in the NFC system and designated as arbitration point of incoming application data routing; analyzing by the arbitration point the first portion of the incoming application data to identify the application for which the data is sent to the NFC system; designating by the arbitration point a point of destination of the application data and application processing; and routing a second portion of the incoming application data to the destination and processing point.Type: GrantFiled: July 11, 2007Date of Patent: June 3, 2014Assignee: Inside SecureInventors: Bruno Charrat, Philippe Martineau -
Patent number: 8744348Abstract: The invention relates to a method for the preselection of at least one application hosted in a secure or non-embedded element in a mobile communication device comprising an NFC system, the said device being capable of accessing and reading data stored in a target NFC system, of the contactless tag or card type, the said NFC system being capable of operating in at least two communication modes including a reader mode, and a card emulation mode, or a Peer-to-Peer mode. When the NFC system is in the reader mode, an application is preselected during a stage wherein data stored in the said target NFC system are read.Type: GrantFiled: March 30, 2010Date of Patent: June 3, 2014Assignee: Gemalto SAInventors: Jean-Yves Fine, Alain Rhelimi
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Patent number: 8744349Abstract: The invention relates to a multi-stack semiconductor integrated circuit device where communication between semiconductor chips can be efficiently carried out by bypassing a number of chips. Each semiconductor chip that forms a multi-stack semiconductor integrated circuit device having a stack structure where four or more semiconductor chips having the same shape are stacked on top of each other is provided with: a first coil for transmission/reception for communication between chips over a long distance; and a second coil for transmission/reception for communication between chips over a short distance, of which the size is smaller than that of the above-described first coil for transmission/reception.Type: GrantFiled: October 8, 2010Date of Patent: June 3, 2014Assignee: Keio UniversityInventor: Tadahiro Kuroda
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Patent number: 8744350Abstract: The application discloses a method for establishing a connection between a first communication device capable of receiving an activating message and a mobile communication device, the method comprising: (a) determining that the mobile communication device is seeking communication with a communication device; (b) checking the status of a first communication device; (c) choosing an action required for establishing the connection in view of the status of the first communication device; and (d) taking the action chosen in (c), wherein taking the action comprises sending to the first communication device an activating message, having at least a portion which activates an application residing on the first communication device.Type: GrantFiled: January 16, 2007Date of Patent: June 3, 2014Assignee: Zlango Ltd.Inventors: Yossef Ilkanaev, Ehud Spiegel, Yoav Lorch
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Patent number: 8744351Abstract: A relay host wireless device is paired with a target host wireless device over a secure link. The relay host wireless device is operable to acquire link security information, which is associated with a link between the target host wireless device and a wireless end-point device, from the target host wireless device. The relay host wireless device is enabled to establish a link with the target host wireless device by faking its identity as an assumed identity of the target host wireless device. The acquired link security information is applied to the established link. The relay host wireless device is enabled to relay content between the target host wireless device and the wireless end-point device via the established fake link using said assumed identity of the target host wireless device and the secure link between the relay host wireless device and the target host wireless device, successively.Type: GrantFiled: August 24, 2009Date of Patent: June 3, 2014Assignee: Broadcom CorporationInventors: Ash Kapur, Prasanna Desai
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Patent number: 8744352Abstract: A device receives distances between an access point, located on a floor of a building, and other access points located on the same floor, and determines, based on the distances, relative location information associated with the access point, where the relative location information provides a location of the access point relative to the other access points. The device also determines, using a triangulation method, an actual location of the access point based on the relative location information. The device further maps the actual location of the access point to a floor plan of the floor, and displays the floor plan with the mapped actual location of the access point.Type: GrantFiled: November 22, 2010Date of Patent: June 3, 2014Assignee: Juniper Networks, Inc.Inventor: Jeffrey L Pochop, Jr.
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Patent number: 8744353Abstract: A Bluetooth mouse for fast switching linking objects comprises a signal processing circuit triggered by a key unit to generate a control signal according to a displacement amount of the mouse. The signal processing circuit is electrically connected with a Bluetooth transmission device. The mouse has a pairing information memory storing pairing codes for establishing data transmission linkages between the Bluetooth transmission device and at least one information processing systems. The key unit is programmed one key or a combination of the keys to trigger the signal processing circuit to generate an object-switching signal. The object-switching signal drives the Bluetooth transmission device to access one pairing code from the pairing information memory according to the displacement amount of the mouse, and establishes a data transmission linkage with one information processing system corresponding to the pairing code.Type: GrantFiled: March 16, 2011Date of Patent: June 3, 2014Assignee: Zippy Technology Corp.Inventor: Yu-Chun Hsieh
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Patent number: 8744354Abstract: A wireless communication terminal includes a tentative determination unit for tentatively determining a role of a display terminal, a transmission unit for transmitting wireless data including information indicating the result of the tentative determination and first information on presence or absence of a display unit and an input unit of the wireless communication terminal, a receiving unit for receiving response data including information indicating a terminal as a display terminal and second information on presence or absence of a display unit and an input unit of a wireless communication terminal having received the wireless data, and a determination unit for determining the role of the display terminal based on the information indicating a terminal as the display terminal and the second information.Type: GrantFiled: March 30, 2011Date of Patent: June 3, 2014Assignee: Olympus CorporationInventor: Kazuyuki Shibuya
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Patent number: 8744355Abstract: A communication method for a Bluetooth device in a scatternet which may include several piconets is proposed. The method includes transmitting data to a peer device in the first piconet, determining whether there is any buffered data to be transmitted to the peer device in the first piconet, and switching from the first piconet to the next piconet to transmit data to a peer device in the second piconet according to the determination result.Type: GrantFiled: August 14, 2011Date of Patent: June 3, 2014Assignee: Mediatek Inc.Inventor: Juei-Ting Sun
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Patent number: 8744356Abstract: The invention provides a mobile communication device having a Packet Traffic Arbitrator (PTA) module and a first wireless communication module, coupled to the PTA module via only one wire and configured to perform a first wireless transceiving. The first wireless communication module sends a first request indicating a remaining period of time for a second wireless communication module to use to the PTA module via the wire, and receives, via the wire, a first response indicating whether the first request has been accepted.Type: GrantFiled: August 26, 2011Date of Patent: June 3, 2014Assignee: Mediatek Inc.Inventors: Li-Chun Ko, Hong-Kai Hsu, I-Lin Hsieh, Jwo-An Lin, I-Kang Fu, Huanchun Ye
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Patent number: 8744357Abstract: A mobile wireless communications device includes a near field communications (NFC) device, and a magnetic sensor. A processor is coupled to the NFC device and the magnetic sensor, and is switchable between an active mode and an idle mode based upon the magnetic sensor. The processor is configured to remain in the active mode based upon communication via the NFC device irrespective of the magnetic sensor.Type: GrantFiled: December 1, 2011Date of Patent: June 3, 2014Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu
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Patent number: 8744358Abstract: The communication module 13 detects, in a predetermined operation mode in which the main processor 11 stops operation, another portable communication terminal existing in a range in which a communication connection is possible, determines the detected portable communication terminal as a target terminal from which target data is obtained, obtains the target data transmitted from the determined target terminal, and stores identification information for identifying the target terminal into the internal memory 13b. The main processor 11 executes processing using the obtained target data. The communication module 13 determines, while the main processor remains stopped, whether or not the identification information of the detected portable communication terminal is already stored in the internal memory 13b, and, under a condition that the identification information is determined to be stored, does not determine the detected portable communication terminal as the target terminal.Type: GrantFiled: June 28, 2012Date of Patent: June 3, 2014Assignees: Sony Corporation, Sony Computer Entertainment Inc.Inventors: Katsuhiko Shibata, Takehiko Tahira
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Patent number: 8744359Abstract: The present invention relates to an electronic equipment for a wireless communication system comprising a near field interface (4) for exchanging contact information with at least one further electronic equipment via near field communication, said contact information serving for communicating within the wireless communication system, a group editing means (3) for creating a group of contact information comprising at least the received contact information, whereby each contact information of the group relates to an electronic equipment, and a communication means (8) for setting up a communication within the wireless communication system to the group of electronic equipments in accordance with the group of contact information. The present invention further relates to a method for operating such an electronic equipment.Type: GrantFiled: February 21, 2013Date of Patent: June 3, 2014Assignees: Sony Corporation, Sony Mobile Communications ABInventors: Fredrik Ramsten, Anette Sandegard, Kristoffer Aberg
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Patent number: 8744360Abstract: Satellite communications methods include receiving communications signals including co-channel interference at a space-based component from a plurality of wireless terminals in a satellite footprint over a satellite frequency band and reducing interference in the communication signals by (a) performing co-channel interference reduction on the communications signals to generate a plurality of interference reduced signals and (b) performing multiple access interference cancellation on the interference reduced signals. An interference reducing detector for a satellite communications system includes an interference reducer configured to perform co-channel interference reduction on communications signals to generate a plurality of interference reduced signals, and a detector configured to perform multiple access interference cancellation on the interference reduced signals. Satellite communications systems and satellite gateways including interference reducing detectors are also disclosed.Type: GrantFiled: January 19, 2010Date of Patent: June 3, 2014Assignee: ATC Technologies, Inc.Inventors: Dunmin Zheng, Peter D. Karabinis
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Patent number: 8744361Abstract: A communication system to feed back an index of a precoding matrix is provided. A terminal may feed back an index of an optimal precoding matrix based on estimated channel status. A base station may transmit data to the terminal based on the index of the precoding matrix received from the terminal.Type: GrantFiled: April 29, 2010Date of Patent: June 3, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Jae Shin, Nam Yoon Lee, Yung Soo Kim, Young Jun Hong, Eun Yong Kim
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Patent number: 8744362Abstract: A cellular radio communication system includes a first mobile terminal, a base station that performs radio communication with first mobile terminals, a second mobile terminal, and a second base station that performs radio communication with second mobile terminals. In the downlink communication, the base station selects a high data rate mode when the radio interference from the base station to the second mobile terminals that are located close to an edge of a communication area of the second base station is small. The base station selects an interference mitigation mode in the downlink communication when the radio interference from the base station to the second mobile terminals that are located close to the edge of the communication area of the second base station is large. Thus, inter-cell interference control can be performed in collaboration with base stations in the radio communication system without having communication interface between the base stations.Type: GrantFiled: June 2, 2011Date of Patent: June 3, 2014Assignee: Hitachi, Ltd.Inventors: Takuji Kawahatsu, Rintaro Katayama, Satoshi Tamaki, Tomonori Yamamoto
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Patent number: 8744363Abstract: The disclosed invention relates to a transceiver system configured to cancel RF second-order intermodulation distortion (IMD2) within a differential reception path. In some embodiments, the transceiver system has one or more common-mode attenuation elements that attenuate common-mode interferer signals within the differential reception path. The common-mode attenuation elements detect a common-mode interferer from one or more nodes within a transceiver system front-end. One or more properties of the detected common-mode interferer are adjusted and then fed into the differential reception path, where the adjusted common-mode signal attenuates the common-mode interferers. In other embodiments, the differential reception path has a tunable amplifying stage. The tunable amplifying stage has first and second amplifier elements that are independently operated to intentionally introduce an operating parameter mismatch between the elements.Type: GrantFiled: February 14, 2012Date of Patent: June 3, 2014Assignee: Intel Mobile Communications GmbHInventor: Krzysztof Dufrene
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Wireless station apparatus, wireless communication system, and wireless communication control method
Patent number: 8744364Abstract: A wireless station apparatus is proposed that solves the problem of deterioration of communication quality. An arrival direction detection unit (13) detects the direction of arrival of uplink signals received by a wireless receiver (11). A mobile station determination unit (12) determines whether the transmission-origin mobile station of the uplink signals that are received by the wireless receiver (11) is a permitted mobile station or a nonpermitted mobile station. Based on the uplink signals received by the wireless receiver (11) and the determination result of the mobile station determination unit (12), an antenna adjustment unit (14) finds the degree of interference of permitted mobile stations and nonpermitted mobile stations in the direction of arrival that was detected in the arrival direction detection unit (13). The antenna adjustment unit (14) adjusts the direction of directivity of the reception antenna (10) in accordance with the degree of interference that was found.Type: GrantFiled: October 30, 2009Date of Patent: June 3, 2014Assignee: NEC CorporationInventors: Motoki Morita, Takashi Mochizuki -
Patent number: 8744365Abstract: A mobile communication device storing a file to be printed, the mobile communication device including: a communication unit to receive printer information of a printer; a network interface unit to connect to a printer server corresponding to the printer information received through the communication unit; and a control unit to transmit the file to be printed to the printer through the printer server according to the received printer information. Accordingly, users can print files using a mobile communication device while traveling away from a fixed printer.Type: GrantFiled: March 17, 2008Date of Patent: June 3, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Hyung-chan Kim, Chang-gi Kwon, Hee-min Kwon, Hyun-keun Cho
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Patent number: 8744366Abstract: An apparatus (10) is disclosed for controlling a digitally controlled attenuator (30). The apparatus includes a programmable logic device (38), to control both the final value of attenuation and the rate of change of attenuation from the initial attenuation value in the attenuator (30) to the final value of attenuation. The apparatus forms a digital stair case ramp and steps the attenuator in such fine granular steps as to form essentially a continuously variable attenuator. Both the final value of attenuation and the rate of change of attenuation can be selected by the operator on the control panel (20) with attenuation select switches (22) and rate select switch (26). Alternatively, the attenuation can be input with an attenuation control knob (28). A digital display (24) displays the attenuation. The apparatus (10) can be remotely controlled with a GPIB or other remote control.Type: GrantFiled: September 26, 2008Date of Patent: June 3, 2014Inventor: Richard K. Steen
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Patent number: 8744367Abstract: Systems and methods for increasing the power and resource efficiency of a mobile network device are presented herein. More particularly, described herein is a novel Tail Optimization Protocol (TOP) and/or other mechanisms, systems and methods for enabling cooperation between a mobile device and an associated radio access network to eliminate idle periods (e.g., tails) when possible. Various systems and methods described herein can leverage the ability of applications and/or their associated connections to accurately predict a long tail time, from which a mobile device can notify an associated cellular network on such an imminent tail in order to allow the cellular network to immediately release tail resources. Various other aspects provided herein realize TOP via fast dormancy and/or other similar notification mechanisms, which enable a handset or other device to notify a cellular network for immediate resource release.Type: GrantFiled: August 31, 2010Date of Patent: June 3, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: Alexandre Gerber, Zhuoqing Mao, Feng Qian, Subhabrata Sen, Oliver Spatscheck, Zhaoguang Wang
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Patent number: 8744368Abstract: An apparatus and method are disclosed for providing test mode contact pad reconfigurations that expose individual internal functional modules or block groups in an integrated circuit for testing and for monitoring. A plurality of switches between each functional module switches between passing internal signals among the blocks and passing in/out signals external to the block when one or more contact pads are strapped to input a pre-determined value. Another set of switches between the functional modules and input/output contact pads switch between functional inputs to and from the functional modules and monitored signals or input/output test signals according to the selected mode of operation.Type: GrantFiled: December 30, 2011Date of Patent: June 3, 2014Assignee: Broadcom CorporationInventors: Love Kothari, James Bennett, Zhongmin Zhang
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Patent number: 8744369Abstract: A mobile communication method according to the present invention includes a step A of transmitting, by an operation and maintenance server EM, “MDT config” to a subscriber management server HSS, and a step B of instructing, by the subscriber management server HSS, the target mobile station UE to perform the MDT measurement process through a mobility management node MME and a radio base station eNB when it is determined that the MDT measurement process by the target mobile station UE is approved.Type: GrantFiled: November 17, 2011Date of Patent: June 3, 2014Assignee: NTT DoCoMo, Inc.Inventors: Wuri Andarmawanti Hapsari, Hideaki Takahashi
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Patent number: 8744370Abstract: A network analyzer comprises: a signal source configured to supply an input signal to a device, wherein the device is configured to generate a phase reference signal; a receiver configured to receive the phase reference signal from the device and to measure a phase response of the device according to the phase reference signal; and a calibration component configured to compare the measured phase response of the device with an actual phase response of the device to identify a tracking parameter for the receiver.Type: GrantFiled: May 18, 2011Date of Patent: June 3, 2014Assignee: Agilent Technologies, Inc.Inventor: Joel P. Dunsmore
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Patent number: 8744371Abstract: A wireless communication system which performs data transmission using spatially multiplexed streams from a first terminal including N antennas to a second terminal including M antennas (N is an integer of 2 or more and M is an integer of 1 or more) is disclosed. The system includes notifying means, training means, channel matrix estimation means, beamforming information feedback means, transmission weight matrix setting means, and beamforming means.Type: GrantFiled: May 1, 2012Date of Patent: June 3, 2014Assignee: Sony CorporationInventor: Tomoya Yamaura
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Patent number: 8744372Abstract: A system and method of transmitting data from an aircraft includes a PC card that acquires aircraft data and transmits the aircraft data over a radio frequency communications signal into the skin of the aircraft, which radiates the radio frequency communications signal to a location remote from the aircraft.Type: GrantFiled: September 5, 2007Date of Patent: June 3, 2014Assignee: Harris CorporationInventors: James J. Ziarno, Shawn Gallagher
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Patent number: 8744373Abstract: The invention provides an antenna system for wireless communications and in particular to a multiple antenna system for operation in conjunction with a radio frequency (RF) front end for wireless communication. The antenna system comprises one or more antennas configurable for transmission and reception in a first set of configurations and configured for transmission in a second set of configurations. The antenna system further comprises two or more antennas configurable for MIMO-diversity reception for the second set of configurations. The antennas that are configured for MIMO-diversity reception may be tunable, and may have similar characteristics to enhance MIMO reception. Mobile communications terminals utilizing the antenna system, and radio-frequency (RF) front ends for operation in conjunction with the antenna system are also provided. The antenna system may support communications in multiple frequency bands and/or multiple communication standards of operation.Type: GrantFiled: March 4, 2010Date of Patent: June 3, 2014Assignee: NETGEAR, Inc.Inventor: Behrouz Pourseyed
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Patent number: 8744374Abstract: Methods and apparatus for uplink data transmission in a Long Term Evolution (LTE) compliant communication system use beam-forming in the uplink to increase the range of LTE compliant wireless communication terminals. Methods are provided for steering the beam in an optimal direction towards the base station, both for time division duplex (TDD) and frequency division duplex (FDD) communication schemes.Type: GrantFiled: December 9, 2010Date of Patent: June 3, 2014Assignee: Intel Mobile Communications Technology Dresden GmbHInventors: Volker Aue, Thomas Fliess
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Patent number: 8744375Abstract: A wireless device may comprise a plurality of antennas that may be utilized during communications via various wireless interfaces. The wireless interfaces may comprise mobile interfaces, wireless personal area network (WPAN) interfaces, and/or wireless local area network (WLAN). The plurality of antennas may be utilized during a communication via a wireless interface in the mobile device. The mobile device may switch among antennas in the plurality of antennas utilizing one or more RF switches to enable utilizing best path for transmitted and/or received RF signals during the wireless communication. The mobile device may also perform signal combining of RF signals received via the plurality of antenna, and to enable a receiving end to perform signal combining of RF signals transmitted via the mobile device. A multiple-input-multiple-output (MIMO) combiner may be utilized to perform signal combing; the MIMO combiner may utilize maximal ratio combining to perform signal combining and equalization.Type: GrantFiled: December 19, 2011Date of Patent: June 3, 2014Assignee: Broadcom CorporationInventor: Shankara Raghuraman
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Patent number: 8744376Abstract: The present invention relates to a method and a user equipment for use in a wireless communication system that allow for improved uplink transmit diversity performance by using downlink measurements for making informed decisions on whether or not to change precoding vector for uplink transmission. The user equipment measures (32) downlink characteristics, such as received power, on a plurality of antennas of the user equipment. Based on the measured downlink characteristics a precoding vector for unlink transmission is determined (38). The determined precoding vector is then used to perform uplink transmission (31).Type: GrantFiled: September 24, 2010Date of Patent: June 3, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Johan Bergman, Johan Hultell, Niklas Johansson, Erik Larsson
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Patent number: 8744377Abstract: Certain embodiments of the disclosure propose a method for cancelling co-channel interference (self-jamming) generated by nonlinearities in the radio-frequency (RF) front-end devices. The proposed method utilizes an adaptive non-linear filter to generate a distorted version of the transmitted signal. The self-jamming interference may be mitigated utilizing the distorted signal through adaptive cancellation.Type: GrantFiled: December 20, 2010Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Roberto Rimini, Peter D. Heidmann, Joseph P. Burke
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Patent number: 8744378Abstract: A radio frequency (RF) transmitter is provided. The RF transmitter includes first and second drivers that are configured to receive first and second sets of complementary RF signals. Restoration circuits are coupled to the first and second drivers, and a bridge circuit is coupled to the first and second restoration circuits. By having the restoration circuits and the bridge circuit, a common mode impedance and a differential impedance can be provided, where the common mode impedance is lower than the differential impedance.Type: GrantFiled: February 9, 2012Date of Patent: June 3, 2014Assignee: Texas Instruments IncorporatedInventors: Joonhoi Hur, Rahmi Hezar, Lei Ding, Baher S. Haroun
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Patent number: 8744379Abstract: A power detector circuit, comprising a first section configured to receive a radio frequency (RF) input signal and to generate a first voltage, wherein the first voltage comprises a voltage proportional to the sum of a mean-square of the RF input signal and a voltage characteristic of the first section, and wherein the first voltage is an input to a third section, a second section configured to generate a second voltage, wherein the second voltage comprises a combination of an output voltage and a voltage proportional to the voltage characteristic of the first section, wherein the output voltage is proportional to a root-mean-square of the RF input signal, the third section configured to generate the output voltage by combining the first voltage and the second voltage, wherein the second section creates a negative feedback loop for the third section and the output voltage generated by the third section is an output of the power detector circuit.Type: GrantFiled: December 31, 2012Date of Patent: June 3, 2014Assignee: Futurewei Technologies, Inc.Inventor: Eric Sung
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Patent number: 8744380Abstract: Method and system for direct conversion receiver (100), transmitter (200), or transceiver (300) device. The device includes a single frequency synthesizer (102) generating a frequency synthesizer output signal. At least one frequency divider (110n) is provided for generating a reduced frequency signal by selectively dividing the single frequency synthesizer output signal by an integer divisor value. Significantly, the device is configured to vary the reduced frequency signal so as to include every frequency the direct conversion communication device is designed to receive within a plurality of frequency bands by adjusting a frequency of the single synthesizer output signal and the divisor value.Type: GrantFiled: March 17, 2011Date of Patent: June 3, 2014Assignee: Harris CorporationInventor: Brian C. Wenink
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Patent number: 8744381Abstract: An adjustment module, an electronic device with the adjustment module, and an antenna performance adjusting method thereof are disclosed. The adjustment module is used for adjusting an antenna module. The antenna module is disposed in the electronic device and used for radiating a wireless signal. The adjustment module includes a monitoring module, a determining module, and a capacitance adjusting unit. The monitoring module is used for detecting an alternating current signal waveform when the antenna module radiates the wireless signal. The determining module receives the alternating current signal waveform and is used for generating an adjusting voltage value when the alternating current signal waveform is a non-constant amplitude. The capacitance adjusting unit is used for changing a capacitance value according to the adjusting voltage value to adjust a resonance point coordinate of the antenna module.Type: GrantFiled: July 3, 2012Date of Patent: June 3, 2014Assignee: Wistron CorporationInventor: Yin-Tsai Wang
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Patent number: 8744382Abstract: A fast tracking power supply device, a fast tracking power supply control method, and communication equipment are provided. The fast tracking power supply device includes: a basic voltage output unit, configured to output a basic voltage; a basic current unit, configured to output a basic current; a linear amplifier, configured to output a compensation current and a compensation voltage, the linear amplifier is connected in parallel with the basic current output unit, and then is connected in series with the basic voltage output unit. The device can output signal with high efficiency and bandwidth.Type: GrantFiled: December 29, 2010Date of Patent: June 3, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Zhaozheng Hou, Xujun Liu
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Patent number: 8744383Abstract: Methods and apparatus for active and passive dynamic electromagnetic radiation emission control in wireless devices by limiting transmit power in individual devices is disclosed. In various embodiments, electromagnetic radiation emissions from wireless devices are dynamically controlled using variable transmit power limits acquired through the use of RF ID/NFC tags that indicate transmit power limits, where such power limiting tags are embedded in clothing, furniture, etc., communication of transmit power limits over Bluetooth or other short range technologies, location-based transmit power limits, user input transmit power limits. Controlling the transmit power of mobiles as well as femtocells/access points for the purpose of minimizing SAR using variable transmit power limits is detailed.Type: GrantFiled: April 6, 2011Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Parvathanathan Subrahmanya, Nitin Kasturi
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Patent number: 8744384Abstract: An embodiment of the present invention provides an apparatus, comprising an input port and a dynamic impedance matching network capable of determining a mismatch at the input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor. The matching network may be a “Pi”, a “T”, or “ladder” type network and the apparatus may further comprise at least one directional coupler capable of signal collection by sampling a portion of an incident signal, a reflected signal or both.Type: GrantFiled: November 23, 2010Date of Patent: June 3, 2014Assignee: BlackBerry LimitedInventors: Gregory Mendolia, James Andrew Martin, III, Izz Khayo, Cornelis Frederik Du Toit, Heinz Bachmann, William McKinzie
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Patent number: 8744385Abstract: A frequency conversion system includes a mixer, which is coupled to mix an input signal with a Local Oscillator (LO) signal, so as to produce an output signal. Control circuitry is configured to adjust an actual level of the LO signal provided to the mixer, so as to maintain the actual level substantially constant. A nulling signal generator is coupled to inject a nulling signal into the input signal prior to mixing with the LO signal adjusted by the control circuitry.Type: GrantFiled: September 1, 2009Date of Patent: June 3, 2014Assignee: Provigent LtdInventors: Nir Yahav, Ofer Rahmanony
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Patent number: 8744386Abstract: A method of tuning a receiver includes: providing a tunable Low Noise Amplifier (LNA) having a plurality of LNAs and a plurality of LC loads coupled to the plurality of LNAs; selecting a desired LNA and a LC load corresponding to the desired LNA; isolating the desired LNA from the selected LC load; generating a local oscillation (LO) signal; routing the LO signal to the output of the tunable LNA to generate a filtered LO signal; determining a first signal power level of the filtered LO signal; changing the capacitance in the selected LC load and determining a second signal power level of the filtered LO signal; comparing the first filtered signal power level to the second filtered signal power level; and according to the comparison result, determining whether or not to adjust the capacitance in the selected LC load.Type: GrantFiled: March 17, 2010Date of Patent: June 3, 2014Assignee: MediaTek Singapore Pte. Ltd.Inventor: Chee-Lee Heng
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Patent number: 8744387Abstract: The wireless device includes: a frequency setting unit which sets a frequency; a first frequency display unit which displays the set frequency as a set-up frequency in numbers; and a second frequency display unit which draws at least one predetermined frequency range, centering the set-up frequency, on a scale having a fan shape by interlocking the at least one predetermined frequency range with the setting of the frequency performed by the frequency setting unit. Here, the scale is rotated about a virtual center point having the fan shape of the scale, and a center of the scale is shown to always correspond to the set-up frequency.Type: GrantFiled: June 11, 2013Date of Patent: June 3, 2014Assignee: Jvckenwood CorporationInventors: Osamu Nakayama, Toru Kawashima
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Patent number: 8744388Abstract: A broadcast radio event such as a song or a concert promotion, and a plurality of radio data fields corresponding to the event such as RTplus information, are received at a device. A user selects to display broadcast radio options simultaneous with receiving the broadcast radio event. Then is displayed a set of user-selectable options, at least one o which is derived from at least one of the radio data fields. In various embodiments, each time a new set of radio data fields are received, the set of displayed options is updated, with certain provisions to ‘freeze’ the displayed set of options. Examples of a derived option include a link to an Internet page, a phone number or email address, and posting a time and place of an advertised event to a calendar. A method, device, computer program product, and apparatus are detailed.Type: GrantFiled: May 30, 2006Date of Patent: June 3, 2014Assignee: Nokia CorporationInventors: Christian R. Kraft, Peter D. Nielsen, Hans-Christoph Quelle, Mikko Makipaa
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Patent number: 8744389Abstract: A high-speed transmitter and receiver are provided. In one embodiment, a transmitter comprises a baseband processor structured to receive data and to convert the data into a multiplicity of high and low signal values, with each high and low signal value having a first timing interval. A local oscillator generates a clock signal at a second timing interval and a digital circuit combines the high and low signal values with the clock signal to produce a transmission signal directly at a transmission frequency. A receiver is configured to receive the signal. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.Type: GrantFiled: October 12, 2011Date of Patent: June 3, 2014Assignee: Intellectual Ventures Holding 73 LLCInventors: Ismail Lakkis, Yasaman Bahreini, John Santhoff
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Patent number: 8744390Abstract: Embodiments of the present invention provide improved systems and methods for adjusting system tests based on detected interference. In one embodiment, a system comprises a host unit; a system test controller to control the performance of system tests, wherein a system test to detect the reception of an interfering signal comprises disabling the generation of tones for transmission through the communication system. The system also comprises multiple remote antenna units communicatively coupled to the system test controller to transmit signals to multiple wireless terminals, wherein a remote antenna unit comprises: an antenna; a transceiver, coupled to the antenna; a signal detector that measures reverse and forward power of signals transmitted to and received from the antenna; and a microcontroller to control the antenna unit, wherein upon receiving a command to perform interference testing, the microcontroller adjusts a subsequent test based on measurements of the reverse power by the signal detector.Type: GrantFiled: March 29, 2012Date of Patent: June 3, 2014Assignee: ADC Telecommunications, Inc.Inventor: Scott Stratford
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Patent number: 8744391Abstract: Embodiments include signal strength indication methods for use in wireless communication devices. In an embodiment, a method includes producing a default received signal strength indicator (RSSI) using default RSSI determination parameters. The method also includes determining that a received signal strength is inadequate, and producing an alternate RSSI, in response, where the alternate RSSI is produced using at least one alternate RSSI determination parameter that is different from at least one default RSSI determination parameter. In another embodiment, a method includes measuring multiple received signal strengths for multiple received signals from multiple base stations, and producing an alternate RSSI based on a received signal strength measurement for a strongest signal of the multiple received signals. An embodiment of a wireless communication device may include a processing subsystem adapted to perform embodiments of the methods.Type: GrantFiled: May 31, 2007Date of Patent: June 3, 2014Assignee: Motorola Mobility LLCInventors: Keith A. Tenbrook, Carl L. Shurboff
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Patent number: 8744392Abstract: An automatic gain control method includes receiving a sequence of multiple digital data, and calculating a plurality of signal values corresponding to the respective voltage values of the digital data, such as multiple peak-to-peak voltage values or power values, so as to optimize a gain according to variations in the output values. The gain optimization includes updating a reference value according to the signal values. If the reference value is less than a minimum threshold, the gain is increased to cause the reference value to reach the minimum threshold. The gain optimization also includes analyzing a clipping rate according to the signal values. If the clipping rate is equal to zero, then the gain is adjusted up. If the clipping rate is greater than zero, then the gain is adjusted down, such that the clipping rate is decreased to approach to zero.Type: GrantFiled: August 31, 2010Date of Patent: June 3, 2014Assignee: Novatek Microelectronics Corp.Inventor: Kung-Piao Huang
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Patent number: 8744393Abstract: A system and method is provided for filtering and amplifying a signal where amplification can be distributed between stages of a filter and gain can be assigned throughout the filter to optimize system performance. Such a system can be implemented in the baseband section of RF receivers. VGAs can be implemented between filter stages, such as biquads, or VGAs can be incorporated in filter stages. Substantially linear VGAs comprising a parallel resistor array can be incorporated in the circuitry of the filter stages to reduce distortion. Gain can be assigned dynamically in the amplification stages to improve noise and/or linearity performance. For example, gain assignments can be implemented so that high power undesired signal components are filtered out before amplification to prevent component saturation, and low power signals are amplified before they are filtered to improve noise performance.Type: GrantFiled: April 23, 2013Date of Patent: June 3, 2014Assignee: Situne CorporationInventors: Saeid Mehrmanesh, Vahid Mesgarpour Toosi
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Patent number: 8744394Abstract: A system including a diversity module and an antenna selection module. The diversity module is configured to measure (i) a first signal-to-noise ratio and a first error rate associated with a first antenna, and (ii) a second signal-to-noise ratio and a second error rate associated with a second antenna. The antenna selection module is configured to select the first antenna or the second antenna by comparing (i) the first signal-to-noise ratio to the second signal-to-noise ratio, and (ii) the first error rate to the second error rate.Type: GrantFiled: January 7, 2013Date of Patent: June 3, 2014Assignee: Marvell International Ltd.Inventors: Milind Kopikare, Brian Bosso, Partho Mishra
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Patent number: 8744395Abstract: A system for mitigating radio frequency (RF) interferences. The system may comprise an interference cancellation module communicatively coupled with a first antenna, the interference cancellation module configured for mitigating interferences from a second antenna by phase shifting a signal receivable at the first antenna according to a phase shift value, the phase shift value being predetermined when the second antenna is oriented in an initial directional orientation. The system may further comprise a variable RF delay module communicatively coupled with the interference cancellation module, the variable RF delay module configured for determining a current directional orientation of the second antenna, the variable RF delay module further configured for providing a phase compensation value based upon the current directional orientation of the second antenna.Type: GrantFiled: August 11, 2010Date of Patent: June 3, 2014Assignee: Rockwell Collins, Inc.Inventor: James P. Mitchell