Noise, Distortion, Or Unwanted Signal Detection (e.g., Quality Control, Etc.) Patents (Class 455/67.13)
  • Patent number: 9360546
    Abstract: Systems, methods, and apparatus for projecting an estimated direction of arrival of sound onto a plane that does not include the estimated direction are described.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 7, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Lae-Hoon Kim, Erik Visser
  • Patent number: 9363721
    Abstract: An in-device coexistence interference report control method of a network for terminal to inform the network of interference among heterogeneous radio communication modules coexisting in the terminal is provided. The method includes determining, at a terminal when a terminal capability enquiry message is received from a base station, whether the base station supports an In-Device Coexistence (IDC) interference report, transmitting, when the IDC interference report is supported, a terminal capacity information message to the base station, receiving a Radio Resource Control (RRC) connection reconfiguration message including information on whether terminal's IDC interference indicator transmission is permitted from the base station; and transmitting an RRC connection reconfiguration complete message to the base station in response to the RRC connection reconfiguration message.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 7, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaehyuk Jang, Soenghun Kim
  • Patent number: 9356630
    Abstract: Embodiments may comprise logic such as hardware and/or code to adaptively control the transmission power for a wireless channel. In many embodiments, adaptively controlling the transmission power may reduce or, in some embodiments, minimize interference between the wireless display (WiDi) transmissions and other transmissions such as multimedia content streaming over another wireless channel to the notebook via a second generation (2G) channel, third generation (3G) channel, or a future long term evolution (LTE) channel.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: May 31, 2016
    Assignee: Intel Corporation
    Inventors: Jie Gao, Xintian E. Lin, Xue Yang, Leora Roth
  • Patent number: 9331827
    Abstract: A method in a first radio node is described for adapting a receiver type in the first radio node. The first radio node includes a first and a second receiver types. The first radio node is included in a wireless communications network, which further includes a second radio node and at least one third radio node. The method includes determining a Cyclic Prefix, CP, length of at least one radio signal transmitted by the second radio node, and a CP length of at least one radio signal transmitted by the at least one third radio node. The first node then adapts, the receiver type to be one of the first type and the second types. This is done based on a relation between the CP length of the radio signal transmitted by the second radio node, and the CP length of the radio signal transmitted by the third radio node.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: May 3, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Iana Siomina, Muhammad Kazmi
  • Patent number: 9306719
    Abstract: Disclosed herein is HARQ management, scheduling, and measurements, among other things, for cooperative communication. For example, methods herein may be used in situations wherein relaying or helping mechanisms may comprise the use of a relay node which is part of a fixed infrastructure or a relay node which may be a mobile wireless transmit/receive unit (WTRU). In said situations, a first transmission with first data is established between an evolved NodeB (eNB) and a WTRU. A second transmission with second data is established between a relay node (RN) and the WTRU. Said first and second data are combined for decoding. A single HARQ feedback for said first and second transmissions is sent from the WTRU to the eNB.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 5, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Samian J. Kaur, Tao Deng, Sana Sfar, Kiran K. Vanganuru, Gregory S. Sternberg, Matthew G. Puzio, Philip J. Pietraski, Ravikumar V. Pragada, Balaji Raghothaman
  • Patent number: 9307544
    Abstract: Apparatuses and methodologies are described that enhance performance in a wireless communication system using beamforming transmissions. According to one aspect, the channel quality is monitored. Channel quality indicators can be used to select a scheduling technique, such as space division multiplexing (SDM), multiple-input multiple output (MIMO) transmission and opportunistic beamforming for one or more user devices. In addition, the CQI can be used to determine the appropriate beam assignment or to update the beam pattern.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Dhananjay Ashok Gore, Alexei Yurievitch Gorokhov, Tingfang Ji, Aamod Dinkar Khandekar, Tamer Adel Kadous
  • Patent number: 9295033
    Abstract: Systems, methods, and devices for narrowband channel selection in a wireless communications network are described herein. In one aspect, a wireless communications device includes a receiver, processor, and transmitter. The receiver is configured to wirelessly receive messages from a first device over a plurality of channels. The processor is configured to estimate a quality of each channel based on one message received from the first device over each channel, select for wireless communication a first channel of the plurality of channels based on the estimated quality of each channel, and prepare a selection message indicating selection of the first channel for wireless communication. The transmitter is configured to transmit the selection message to the first device.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 22, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Zhi Quan, Simone Merlin, Santosh Paul Abraham, Sameer Vermani, Hemanth Sampath
  • Patent number: 9271167
    Abstract: Existing criteria for analyzing radio link failure conditions may not satisfactorily address the conditions between cells that support cooperative resource coordination. Generally, when the UE declares radio link failure, the UE discontinues communication with a serving base station and searches for a new base station. When the UE lies in a region with severe interference, where the interference is coordinated between base stations by the interfering cell yielding part of its resources, the UE measurements for determining radio link failure (RLF) may vary considerably, depending on whether the measured resources were yielded by the interfering cell. When the UE measures resources which were not yielded by the interfering cell, the UE can erroneously declare RLF (e.g., due to high interference), although the UE can still access the serving cell using resources yielded by the interfering cell.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: February 23, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Osok Song, Aleksandar Damnjanovic, Tingfang Ji
  • Patent number: 9240832
    Abstract: A method for detecting signals using an adaptive transducer arrangement, the arrangement including a transducer array having a plurality of transducers, a beamformer, and an energy detector, the method comprising: determining weights to be applied by the beamformer to signals emitted from each transducer in order to maximize a performance metric; applying the determined weights to the signals emitted from each transducer; measuring the energy received at the energy detector; comparing the measured energy with a predetermined value and based on said comparison determining whether or not one or more signals are present.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: January 19, 2016
    Assignee: Roke Manor Research Limited
    Inventor: David James Sadler
  • Patent number: 9210598
    Abstract: An embodiment of a low power system for measuring passive intermodulation (PIM) includes a port, a test signal source, a dielectric frequency domain multiplexer and a receiver. The test signal source provides a test signal including two tones each capable of producing a signal at the test port of amplitude +30 decibels referenced to one milliwatt (dBm) or less. The dielectric frequency domain multiplexer connected with the port and the test signal source and is adapted to multiplex the test signal provided by the test signal source and a measurement signal obtained at the port. The receiver receives the multiplexed measurement signal from the dielectric frequency domain multiplexer and provides a signal indicative of PIM.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 8, 2015
    Assignee: ANRITSU COMPANY
    Inventor: Donald Anthony Bradley
  • Patent number: 9185660
    Abstract: A power adaptation apparatus for a wireless communication channel includes a power ratio compensator. The power ratio compensator is capable of receiving a channel quality indicator and compensating a power ratio parameter according to the channel quality indicator, wherein the power ratio parameter defines a relation between power of the wireless communication channel and power of another wireless communication channel, and is referenced for setting the power of the wireless communication channel.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: November 10, 2015
    Assignee: MEDIATEK INC.
    Inventors: Po-Shen Weng, Yuan Ho, Sung-Chiao Li, Chen-Wei Hsu, Wen-Hsien Ho, Qian-Zhi Huang
  • Patent number: 9184902
    Abstract: A communications apparatus used in a wireless full duplex system is disclosed. The communications apparatus includes a receiver chain connected to an antenna and an interference cancelling chain. One or more cancellation signals generated by the interference cancelling chain are fed back to the receiver chain prior to the first baseband amplifier which uses the first automatic gain control and the second automatic gain controller. Other methods and systems also are disclosed.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 10, 2015
    Assignee: NEC Laboratories America, Inc.
    Inventors: Mohammad Khojastepour, Sampath Rangarajan
  • Patent number: 9184813
    Abstract: A method for reducing interference at a terminal of a wireless cellular network is described. The terminal experiences interference from a plurality of interfering nodes in the wireless cellular network. The method includes selecting the precoders of the interfering nodes such that the sum of distances between the interference projector matrices for the terminal is minimized.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: November 10, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Samer Bazzi, Guido Dietl, Wolfgang Utschick
  • Patent number: 9178679
    Abstract: A method and an apparatus for feedback transmission in a wireless communication system are provided. A terminal selects at least one subband among plural subbands constituting a set of subbands and transmits information about feedback measured for the at least one subband. The feedback information contains an index of the at least one subband, and the at least one subband is selected in consideration of resource mapping of the plural subbands.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: November 3, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Wook Bong Lee, Bin Chul Ihm
  • Patent number: 9167538
    Abstract: A method and apparatus for adjusting the transmission power of signals transferred by at least one home base station through a wireless interface to a mobile device, the at least one home base station being located in the cell of a base station. The transmission power is adjusted by first performing an inter cell interference coordination procedure including determining at least one high interference reference zone for the at least one home base station. Then the signal transmission power adjustment for the at least one home base station is determined to ensure a given outage probability that a given function g representing the mobile terminal performance degradation is lower than or equal to a threshold value in the high interference reference zone around the at least one home base station.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: October 20, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Julien Guillet, Loic Brunel, Nicolas Gresset
  • Patent number: 9143209
    Abstract: Various arrangements for mapping antennas to transceivers are presented. A plurality of antennas may be present. Each antenna of the plurality of antennas may be configured to communicate using different radio technologies. A plurality of transceivers may be present. At least some of the transceivers of the plurality of transceivers may be configured to utilize different radio technologies. A selector circuit may be present that is configured, based on input from a processor, to map each antenna of the plurality of antennas with each transceiver of the plurality of transceivers. The processor may be configured to control which antennas of the plurality of antennas are mapped to which transceiver of the plurality of transceivers. Touch sensors may be used to determine which antenna or antennas are likely to serve as effective electromagnetic transducers. Signal-to-noise measurements may be used to determine when to modify an antenna mapping.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: September 22, 2015
    Assignee: QUALCOMM INCORPORATED
    Inventors: Fahed Zawaideh, Chintan Shah, Raghuveer Mallikarjunan
  • Patent number: 9143921
    Abstract: Methods, systems, and devices are described for communicating physical layer wireless parameters over an application programming interface. A wireless modem of a wireless device may measure at least one physical layer wireless parameter. The wireless modem may report the at least one physical layer wireless parameter to an application running on the wireless device over an application programming interface between the wireless modem and the application. A behavior of the application may be adapted to control wireless communications between the application and a network based on the at least one physical layer wireless parameter reported by the wireless modem. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: September 22, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Hu, Donna Ghosh, Rashid Ahmed Akbar Attar, Jing Sun, Peter P. Ang, Ravindra Mahendrakumar Garach
  • Patent number: 9131515
    Abstract: A wireless receiver receives reference signals over a wireless link. The wireless receiver calculates a selection indication based on the received reference signals, and the wireless receiver selects from among plural channel estimation techniques based on the selection indication, where the selected channel estimation technique is usable to perform channel estimation of the wireless link.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 8, 2015
    Assignee: BlackBerry Limited
    Inventors: Jiandong Zhuang, Xixian Chen, Edward Ken Kiu Mah
  • Patent number: 9124366
    Abstract: A communication apparatus acquires a delay profile for a first transmit signal from a transmitting apparatus and determines an end time at which to end detection of a second transmit signal from the transmitting apparatus, based on the delay profile.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 1, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisuke Horio, Norihito Aoki
  • Patent number: 9094924
    Abstract: The disclosure is related to controlling a transmit power of an uplink sounding reference signal.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 28, 2015
    Assignee: KT CORPORATION
    Inventor: Min Seok Noh
  • Patent number: 9094851
    Abstract: A system and method for reducing interference in a wireless communication system may include sending by a transmitter to a receiver a signal sequence s=(s1, s2, . . . , sL) of length L and information bit m, the signal sequence s having an interference signal sequence j=(j1, j2, . . . , jL). The system and method may also include identifying by the receiver an optimal lag ?° of the signal sequence s in relation to the interference signal sequence j, determining an estimate of the information bit m from the optimal lag ?° by the transmitter and calculating the signal to interference plus noise ratio by the receiver.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: July 28, 2015
    Inventor: Rueywen Liu
  • Patent number: 9071696
    Abstract: Devices and methods are disclosed which relate to a wireless communications device comprising a wireless power transmission detector and a wireless power transmission indicator for displaying to a user the current level of wireless power transmission. A voltmeter and ammeter take readings from the wireless transceiver circuit while the wireless communications device is on. A power logic stored on a memory within the wireless communications device converts the readings into a wireless power transmission level. The wireless power transmission level is output to an indicator on the wireless communications device where a user can view it. Exemplary embodiments include a true battery life indicator on the wireless communications device. The true battery life indicator gives an amount of time a battery powering the wireless communications device will last at the current wireless power transmission level.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: June 30, 2015
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Jian Li, Zhi Li, Raghvendra Savoor
  • Patent number: 9064487
    Abstract: A sound pickup device includes a detector configured to detect attachment of an external apparatus, a sound pickup unit configured to pick up a sound and output a sound signal, and a noise processor configured to, in response to the detection of attachment of an external appliance, add a noise signal to the sound signal output from the sound pickup unit and output the sound signal including the noise signal added thereto.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: June 23, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Yoshio Ohtsuka
  • Patent number: 9055436
    Abstract: A transmitting device, a receiving device, a wireless communication system and a method for controlling the wireless communication system are used for creating a secure wireless communication network of a limited area. The transmitting device comprises: one or more transmitters configured to transmit wireless signals, and create the limited area by a coverage scope of the wireless signals; a cryptography key generating unit configured to generate a cryptography key for the wireless signals; a cryptography key encoding unit configured to encode the cryptography key to a cryptography key frame; and a cryptography key scheduling unit configured to schedule the cryptography key frame so as to control the transmitter to transmit the wireless signals including the cryptography key frame.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: June 9, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yan Sun, Wei Wang, Haihua Yu, Bin Da
  • Patent number: 9042842
    Abstract: In a wireless network, plural downlink signals from plural base stations are transmitted to a terminal. The plural downlink signals all carry the same information to the terminal. The terminal provides feedback on the downlink channels. The feedback provides information on the taps of the channels. The amount of information fed back is constrained. Based on the feedback, transmission parameters of the downlink signals are adjusted. The process of transmitting, providing feedback, and adjusting the parameters continue so that the energy of the downlink signal is enhanced at the terminal location and suppressed elsewhere. Beam forming can be used to further suppress the energy signature at locations other than the terminal location.
    Type: Grant
    Filed: August 31, 2013
    Date of Patent: May 26, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Kumar Balachandran, Leonid Krasny
  • Patent number: 9042838
    Abstract: A system and methods for cancelling transmission leakage signals in a wide bandwidth Distributed Antenna System (“DAS”) having remote units is disclosed. An internal cancellation circuit within the remote unit is employed to reduce the transmitted leakage signals by generating a cancellation signal. This cancellation signal is added to the received signal to cancel the transmission leakage signal in the receiving signal path. A pilot signal generation circuit is employed to optimize the cancellation circuit operating parameters. The frequency of the pilot signal is swept over a range to determine the pilot frequency having the highest electromagnetic coupling. The amplitude and phase of the cancellation signal is then optimized to minimize the level of transmission leakage in the receiving transmission path.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: May 26, 2015
    Assignee: Intel Corporation
    Inventor: Richard Neil Braithwaite
  • Patent number: 9042822
    Abstract: A communication device having a wireless communication system and a Near Field Communication (NFC) circuit is provided. The NFC circuit includes two pads, two ferrite beads and a NFC controller. The first pad and the second pad are coupled to a NFC antenna. The first and the second ferrite bead are respectively coupled to the first pad and the second pad. The NFC controller includes two pins. The first pin and the second pin are coupled to the first ferrite bead and the second ferrite bead, respectively. The first pin and the second pin output a differential NFC signal to be emitted by the NFC antenna. The first and the second ferrite bead allow the fundamental frequency component of the NFC signal to pass, and filter out a plurality of high-frequency components for avoiding the operating frequency of the wireless communication system from being interfered by the high-frequency components.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: May 26, 2015
    Assignee: HTC Corporation
    Inventor: Shang-I Lin
  • Patent number: 9042836
    Abstract: A communications apparatus includes a wireless module and a controller module is provided. The wireless module transmits and receives radio frequency signals to and from a service network via at least a first and a second component carriers. The controller module receives a first measurement configuration corresponding to the first component carrier from the service network, receives a message indicating that the first component carrier is replaced by a third component carrier from the service network via the wireless module, receives a second measurement configuration corresponding to the third component carrier from the service network via the wireless module, keeps at least one of the first and second measurement configurations in response to receiving the message, and performs measurements according to the kept measurement configuration.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 26, 2015
    Assignee: HTC CORPORATION
    Inventor: Chih-Hsiang Wu
  • Patent number: 9037092
    Abstract: A method of determining at a receiver whether a received signal comprises a pure tone signal component. The method comprises: measuring a received signal over a measurement period; calculating, using maximum likelihood hypothesis testing, a likelihood ratio value for the measured signal and, determining, based on said likelihood ratio value, whether the measured signal comprises a pure tone signal component. The likelihood ratio value is a value indicative of the ratio of a likelihood LFSC that the measured signal comprises a pure tone signal component, and a likelihood LnoFSC that the measured signal does not comprise the pure tone signal component.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 19, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Morten R. Hansen, Lars P. B. Christensen
  • Patent number: 9037172
    Abstract: To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated. A mobile's throughput requirement, the throughput already received over a specified past duration, the system fairness requirement, as well as the amount of data available for transmission are also used for evaluating the priority index.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 19, 2015
    Assignee: APPLE INC.
    Inventors: Nimal Senarath, Kelvin Kar-Kin Au, Shalini Periyalwar
  • Patent number: 9036483
    Abstract: A mobile communication method according to the present invention includes a step of setting, by a radio base station eNB#10, when a subframe designated by a pattern of ABS, the pattern being notified by a radio base station eNB#1, matches a subframe set as an MBSFN subframe, the matching subframe as an MBSFN subframe used for “eICIC”.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 19, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Tetsushi Abe
  • Patent number: 9037099
    Abstract: A system, apparatus, method and article to manage channel prediction for a wireless communication system are described. The apparatus may include a media access control processor to perform channel prediction, and a transceiver to communicate information using the channel prediction. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: May 19, 2015
    Assignee: INTEL CORPORATION
    Inventors: Qinghua Li, Xintian E. Lin
  • Patent number: 9037184
    Abstract: A wireless terminal transmits a result of measuring received power of a downlink wireless signal from a femtocell base station to a macrocell base station. The macrocell base station transmits an interference control request including identification information of the wireless terminal to a femtocell base station group of which received power of a downlink signal included in a measurement result transmitted from the wireless terminal is a predetermined value or more. The femtocell base station has an adjacent wireless terminal list in which identification information of a wireless terminal, which is capable of being connected to an adjacent femtocell base station but is not capable of being connected to the femtocell base station, is recorded, and downlink transmission power of the femtocell base station is reduced when the identification information included in the interference control request is included in this list.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 19, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Katsuyoshi Naka, Toyoki Ue, Takeshi Kanazawa
  • Publication number: 20150133063
    Abstract: A method includes computing a minimum sensitivity threshold value for a particular wireless device, configuring the particular wireless device to receive wireless signals with a signal strength higher than the minimum sensitivity threshold value, distributing the minimum sensitivity threshold value to other wireless devices, and configuring the other wireless devices based on the minimum sensitivity threshold value for the particular wireless device.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Applicant: ARUBA NETWORKS, INC.
    Inventor: Subburajan Ponnuswamy
  • Publication number: 20150133062
    Abstract: A handheld wireless transmitter network analysis tool has a transceiver for detecting wireless signals from a transceiver of a smart device used in an automated process control. The tool has a processor with program modules for analyzing the spectrum of received wireless signals and noise. Another memory module includes a device description protocol program for reading tag and primary variable data carried by the wireless signals from smart device. The network tool displays the frequency and spectrum of the wireless signal from smart device, the tag and primary variables for device, the signal to noise ratio and the possible identity of the sources of noise.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Fluke Corporation
    Inventor: Nikola Mrvaljevic
  • Patent number: 9031597
    Abstract: A method includes receiving in a mobile communication terminal signals from multiple cells that coordinate transmission of the signals with one another in a Cooperative Multipoint (CoMP) scheme. At least first and second Channel Quality Indicators (CQIs), for respective communication channels over which the signals are received, are calculated in the terminal based on the received signals. The second CQI is differentially encoded relative to the first CQI. Feedback information, including the first CQI and the differentially-encoded second CQI, is transmitted from the terminal.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: May 12, 2015
    Assignee: Marvell World Trade Ltd.
    Inventors: Yan Zhang, Krishna Srikanth Gomadam
  • Patent number: 9031504
    Abstract: RFID tags, tag circuits, and methods are provided that reject at least in part the distortion caused to wireless signals by interference in the environment. When the received RF wave is converted into an unfiltered input (971), a filtered output (972) is generated that does not include an artifact feature deriving from the distortion. The filtered output is used instead of the unfiltered input, which results in tag operation as if there were less interference in the environment, or none at all.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 12, 2015
    Assignee: Impinj, Inc.
    Inventors: John D. Hyde, Kurt E. Sundstrom
  • Patent number: 9031501
    Abstract: A process for eliminating interference in a telecommunications network including a multi-beam satellite, a coverage area made up of a plurality of cells in which terminals are located, at least two of the cells, referred to as the first and second cell, being associated with the same frequency band, a first earth station including a first demodulator capable of demodulating signals transmitted by terminals located in the first cell and a second earth station including a second demodulator different from the first demodulator capable of demodulating signals transmitted by terminals located in the second cell. The process uses information supplied by the terminal, particularly its position and transmission parameters, and enables the appropriate G/T figure to be deduced. This information is then transmitted to the demodulator of the second earth station and will be used to reconstruct the signal incorporating the message and remove it from the received signal.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: May 12, 2015
    Assignee: Eutelsat S A
    Inventors: Antonio Arcidiacono, Daniele Vito Finocchiaro
  • Patent number: 9031498
    Abstract: A processor-implemented method is provided. The method comprises a communications control device installed in a motor vehicle receiving a wireless communication from a short range wireless device. The method also comprises the communications control device selecting a first radio from a plurality of radios available to transmit the wireless communication to the destination specified in the wireless communication, wherein the radios are components of the communications control device. The method also comprises the communications control device determining that a second radio is connected to a physical expansion slot, wherein the physical expansion slot is a component of the communications control device.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 12, 2015
    Assignee: Sprint Communications Company L.P.
    Inventors: Lyle T. Bertz, Jason R. Delker, Matthew Oommen, Trevor D. Shipley
  • Patent number: 9031837
    Abstract: In prediction of a speech quality evaluation score such as a phone speech, even when a background noise exists, a subjective opinion score is predicted with high precision. A speech quality evaluation system that outputs a predicted value of the subjective opinion score for an evaluation speech such as a far-end speech of a phone, includes a speech distortion calculation unit that conducts, after calculating frequency characteristics of the evaluation speech, a process of subtracting given frequency characteristics from frequency characteristics of the evaluation speech, and calculates the speech distortion on the basis of the frequency characteristics after the subtracting process has been conducted, and a subjective evaluation prediction unit that calculates the predicted value of the subjective opinion score on the basis of the speech distortion.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: May 12, 2015
    Assignee: Clarion Co., Ltd.
    Inventor: Takeshi Homma
  • Patent number: 9031612
    Abstract: Described are techniques for managing the interference produced by D2D (device-to-device) transmissions that may be used in conjunction with transmit power control but operate independently. In one technique, interference between D2D transmissions and cellular uplink transmissions using common resources as received at a base station is managed by opportunistic interference alignment and clustering of D2D devices. In another technique, interference between different D2D devices using the same resources is mitigated by base-station aided space-time interference alignment.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 12, 2015
    Assignee: Intel Corporation
    Inventors: Shilpa Talwar, Namyoon Lee, Kerstin Johnsson
  • Patent number: 9026156
    Abstract: In accordance with an example embodiment of the present invention, an apparatus, method and computer storage product are disclosed which compose a report at an apparatus having at least one network radio and at least one other radio, the report comprising in-device coexistence related information that combines information descriptive of potential and on-going interference to the at least one other radio as two orthogonal components comprised of power domain information and time domain information and transmit the report to a network station with which the apparatus communicates using the at least one network radio.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: May 5, 2015
    Assignee: Nokia Corporation
    Inventors: Antti Piipponen, Lars Dalsgaard, Petri Vasenkari, Jussi-Pekka Koskinen, Sari Nielsen
  • Patent number: 9020499
    Abstract: A method and apparatus for fast cell selection by a mobile wireless device. The mobile wireless device detects when a first wireless cell fails a set of stored suitability criteria and searches for and locates a set of candidate wireless cells to associate with. The mobile wireless device measures at least one received signal metric for each candidate wireless cell in the set of candidate wireless cells. When a candidate cell in the set of candidate wireless cells is identically the first wireless cell, the mobile wireless device evaluates the suitability of the candidate wireless cell using the stored set of suitability criteria for the first wireless cell and the measured at least one received signal metric for the candidate wireless cell. The mobile wireless communication device associates with the candidate wireless cell when the candidate wireless cell meets the stored set of suitability criteria.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: April 28, 2015
    Assignee: Apple Inc.
    Inventors: Giri Prassad Deivasigamani, Venkatasubramanian Ramasamy, Sharad Garg, Srinivasan Vasudevan
  • Patent number: 9020546
    Abstract: A scheme to reduce the problem of radio interference between wireless devices such as MTC devices in a multi-RAT scenario. Wireless devices are configured (S10) for interference reporting in accordance with their capabilities. Information is collected, not only on interference measurements reported by the wireless devices, but also on device signatures (S12) and transmission patterns (S14) for the purpose of attributing interference, suffered by a reporting device, to one or more offending devices (S16). One or more mitigation techniques is then applied to the offending device and/or the reporting device (S20-S24). The scheme provides an additional stability mechanism for existing interference mitigation and co-existence schemes by using device management and avoiding potential conflicts across diverse systems.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 28, 2015
    Assignee: Fujitsu Limited
    Inventors: Paul Bucknell, Hind Chebbo, Jumoke Ogunbekun, Milos Tesanovic
  • Publication number: 20150111505
    Abstract: A method and apparatus for transmitting feedback information is provided for use in a Cooperative Multi-Point downlink transmission of multiple base stations efficiently. An interference measurement method of a base station in a mobile communication system, the method comprising: allocating at least one Interference Measurement Resource (IMR) to a terminal; transmitting the allocated IMR to the terminal; and receiving at least one channel status information from the terminal; wherein allocating at least one IMR comprises allocating at least one IMR for the terminal overlapped to other IMR for the other terminal.
    Type: Application
    Filed: May 29, 2013
    Publication date: April 23, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youn Sun Kim, Hyo Jin Lee, Ju Ho Lee
  • Patent number: 9014701
    Abstract: Provided is a method for performing communication with a network by a User Equipment (UE) based on its speed information in the network in which at least one portion includes at least one micro cell overlapping at least one macro cell. The method includes measuring, by the UE, its moving speed; and performing at least one of feedback, measurement report, random access and UE capability report to the network by considering the measurement result.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jin-Kyu Han, Youn-Sun Kim, Ju-Ho Lee
  • Patent number: 9014637
    Abstract: Examples are disclosed for switching frequency control of an on-chip or integrated voltage regulator. In some examples, a switch frequency of an integrated voltage regulator may be monitored. A determination of whether the monitored switch frequency causes radio signal interference may cause the switch frequency to be adjusted to eliminate or reduce the radio signal interference. Other examples are described and claimed.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 21, 2015
    Assignee: Intel Corporation
    Inventors: Harry G. Skinner, Dawson W. Kesling, Jeremy Shrall
  • Patent number: 9014642
    Abstract: A radio wave receiver that receives two different sets of radio waves and displays intensity of the received radio waves. First and second radio wave processing portions receive respective radio waves and output various kinds of information, such as video information and audio information. A switching portion receives output signals from the first and second radio wave processing portions, and switches the output signals according to a switching instruction of a controller to supply the output signals to a display portion and a speaker. The controller causes the intensities of the received radio waves in respective tuners of the first and second radio wave processing portions to be displayed simultaneously or in a switching manner based on a user's operation irrespective of which tuner's received radio waves are being processed.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: April 21, 2015
    Assignee: Kyocera Corporation
    Inventor: Tsurumi Ito
  • Patent number: 9015338
    Abstract: A method and apparatus for suppressing silence frames in a stream of media includes receiving a stream of media from a user and suppressing at least one silence frame from the received stream of media. The suppressed silence frame includes an initial silence frame situated before a first media frame and/or a silence frame situated between two successive media frames.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: April 21, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Ben Saidi, Mark Lindner
  • Patent number: 9014644
    Abstract: Methods and apparatuses for radio proximity detection are disclosed. In one example, a method for determining a proximity of a mobile radio includes determining an initial range of a mobile radio in relation to a base radio, and processing the initial range determination to determine whether to make a refined range determination utilizing signal measurements from both a base radio first antenna and a base radio second antenna.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 21, 2015
    Assignee: Plantronics, Inc.
    Inventor: Stephen Cahill