Plural Separate Collectors Patents (Class 455/272)
  • Patent number: 9002203
    Abstract: A method for data processing of an optical network element is provided, wherein a configuration information is received at the optical network element and a light signal is adjusted to a wavelength or wavelength range indicated by said configuration information; wherein an incoming optical signal is demodulated via the light signal and mixed as an electrical demodulated signal with a signal of an oscillator; wherein the signal of the oscillator is tuned to improve a reception of the incoming signal at the optical network element; and wherein the light signal is used for upstream modulation to provide a modulated optical upstream signal. Furthermore, an according device and a communication system are suggested including at least one such device.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: April 7, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Thomas Treyer, Karl Kloppe, Harald Rohde
  • Patent number: 8970070
    Abstract: A wireless power transmission unit according to the present invention transmits power wirelessly from a power transmitting section 100 to a power receiving section 200 through a resonant magnetic field. The unit includes: the power transmitting section 100, which resonates at a resonant frequency f0; at least one relay section 300, which can resonate at a frequency that is selected from multiple frequencies including the resonant frequency f0; and a resonance control section 600 that outputs information that specifies a resonance condition to be imposed on the relay section 300 according to the arrangement of the power receiving section 200 and that makes the relay section 300 resonate on the resonance condition that has been specified in accordance with that information.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 3, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomokazu Sada, Hiroshi Kanno
  • Patent number: 8948686
    Abstract: Disclosed is a method for selecting a source transmit antenna in a cooperative multiple-input and multiple-output (MIMO) communication system including a source node, a relay node and a destination node. The method includes determining a source transmit antenna selection metric such that a source-destination channel, a source-relay channel and a relay-destination channel are related to one another, and selecting a positive integer number of antennas such that the source transmit antenna selection metric is maximized.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: February 3, 2015
    Assignee: Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Dae Woon Lim, Dong-Joon Shin, Jong-Seon No, Xianglan Jin
  • Patent number: 8942659
    Abstract: A method for selecting the state of a reconfigurable antenna installed at either the receiver or transmitter of a communication system is provided. The proposed method uses online learning algorithm based on the theory of multi-armed bandit to perform antenna state selection. The selection technique utilizes the Post-Processing Signal-to-Noise Ratio (PPSNR) as a reward metric and maximizes the long-term average reward over time. The performance of the learning based selection technique is empirically evaluated using wireless channel data. The data is collected in an indoor environment using a 2×2 MIMO OFDM system employing highly directional metamaterial Reconfigurable Leaky Wave Antennas. the learning based selection technique shows performance improvements in terms of average PPSNR and regret over conventional heuristic policies.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: January 27, 2015
    Assignee: Drexel University
    Inventors: Nikhil Gulati, David Gonzalez, Kapil R. Dandekar
  • Patent number: 8934942
    Abstract: Base station arrangement (100) adapted to receive signals from a user station; adapted to be connected to or comprises a plurality of antenna elements (1, 1, 2, 2, . . . 4,) with antenna ports (11, . . . 11) and a signal processing unit (20). The base station (21) also comprises a signal pre-processing functional unit (30) to collect channel correlation information. It is adapted to establish if there is one or more distinguishing characteristics comprising different correlation properties of different configuration properties associated with the antenna elements. Antenna elements are then assigned to different groups based on said configuration properties, and the channel correlation information is used to generate weighting information which is applied to antenna ports connected to antenna elements to control the antenna ports connected to antenna elements to control the antenna element transmit power individually or groupwise.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: January 13, 2015
    Assignee: Telefonaktiebolaget L.M. Ericsson (publ)
    Inventors: Sven Petersson, Bjorn Johannisson
  • Patent number: 8923924
    Abstract: A system and method for processing antenna signals are provided. For example, the method includes, in a receive mode, weighting and combining signals from at least one low-band antenna radiator element operable over a first bandwidth, at least one high-band antenna radiator element operable over a second bandwidth at least partially overlapping the first bandwidth, and, in some examples, at least one antenna radiator element operable over one or more intermediate bandwidths. The method also includes, in a transmit mode, separating and weighting a full-band input port signal into at least one low-band sub-system output port signal, at least one high-band sub-system port output signal, and, in some examples, at least one intermediate sub-system output port signal operable over one or more overlapping intermediate bandwidths. The weighted combination and weighted separation cover an uninterrupted continuous full-band frequency whose extent covers the full frequency range of all subbands.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 30, 2014
    Assignee: Raytheon Company
    Inventors: Victor S. Reinhardt, Jar J. Lee, Fangchou Yang
  • Patent number: 8923792
    Abstract: A method for receiving a radio signal by a receiver including a 2-dimensional antenna array which consists of a plurality of antenna elements in a wireless communication system includes: dividing the plurality of antenna elements into a plurality of groups; determining a group-specific reception beam for each of the plurality of groups; applying the group-specific reception beam to a channel corresponding to each of the plurality of groups to acquire virtual channels respectively corresponding to the plurality of groups; and estimating channels respectively corresponding to the plurality of groups based on reference signals received through the virtual channels.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: December 30, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hanjun Park, Jonghyun Park, Kijun Kim, Hanbyul Seo
  • Patent number: 8918072
    Abstract: A mobile wireless LAN communications device may include a portable, handheld housing, and a wireless LAN transceiver carried by the housing. A polarization diversity wireless LAN antenna may be included for cooperating with the wireless LAN transceiver to communicate over a wireless LAN. The polarization diversity wireless LAN antenna may include a first antenna element coupled to the wireless LAN transceiver having a first shape and a first polarization, and a second antenna element coupled to the wireless LAN transceiver having a second shape different from the first shape. The second antenna element may also have a second polarization different from the first polarization.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: December 23, 2014
    Assignee: BlackBerry Limited
    Inventors: Yihong Qi, Ying Tong Man, Perry Jarmuszewski, Adrian Matthew Cooke
  • Patent number: 8918062
    Abstract: Methods and apparatus are provided for allowing a transmitter (Tx) to perform antenna selection independently of a receiver (Rx) in a transceiver supporting both transmit diversity and receive diversity. Certain aspects may utilize a cross switch, which may be used in a parallel or cross configuration, to provide for the independent antenna selection, such that the Rx may maintain the ability to operate on the same antenna as the Tx, on another antenna, or on both antennas for enhanced receive diversity. Furthermore, certain aspects may employ additional switching in the baseband domain in an effort to avoid, or at least reduce, switching glitches in the Rx caused by changing the cross switch configuration. In this manner, the Rx need not re-converge upon antenna switching.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 23, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Christos Komninakis, Daniel F. Filipovic, Chengjin Zhang
  • Patent number: 8903346
    Abstract: A system includes a first external mounted amplifier (EMA) having a first low-noise amplifier (LNA) coupled to a first antenna, a second EMA having a second LNA coupled to a second antenna, a first splitter coupled between the first antenna and the first LNA, a first phase shifter coupled to the first splitter, and a second mixer coupled to the first phase shifter. The first LNA is operable to receive a first input signal from first antenna. The second LNA is operable to receive a second input signal from second antenna. The first splitter is operable to derive a first sampling signal from first signal. The first phase shifter is operable to shift the phase of first sampling signal to create a second cancelation signal. The second mixer is operable to mix a second input signal derived from second signal with second cancelation signal to create a second output signal.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: December 2, 2014
    Assignee: ADC Telecommunications, Inc.
    Inventors: Larry G. Fischer, David Willey, Chad Boeckman
  • Patent number: 8892143
    Abstract: A communication apparatus is provided. The communications apparatus includes multiple radio modules and a manager. Each of the radio modules is arranged to provide a predetermined wireless communications service in compliance with a predetermined protocol. The manager is arranged to handle a communication indication assessment procedure of the radio modules to obtain an assessment result. The communication indication assessment procedure is performed by at least one of the radio modules, and the assessment result is shared with all of the radio modules.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: November 18, 2014
    Assignee: Mediatek Inc.
    Inventors: Shuo-Jen Hsu, Wei-Lun Wan, Juei-Ting Sun
  • Publication number: 20140329483
    Abstract: Methods and apparatus for selecting one or more suitable antennas for use during power-up/initial acquisition and out of service modes are disclosed. In some examples, initial system acquisition may be performed for a particular receive circuit utilizing a selected one of a first antenna or a second antenna, based on a channel characteristic, such as an automatic gain control (AGC) value corresponding to a received signal energy utilizing either of the antennas. In another example, initial system acquisition utilizing either a receive diversity determination algorithm or an antenna switching determination algorithm may be performed based on a channel characteristic, such as an AGC value corresponding to a received signal energy utilizing one of the antennas coupled to one of the receive circuits.
    Type: Application
    Filed: October 29, 2013
    Publication date: November 6, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Troy Russell Curtiss, Vamsee Krishna Somavarapu, Gregory Robert Lie, Jun Hu, Alexey Semjonovs, Sundararaman Kunchithapatham, Stanley Suyi Tsai
  • Patent number: 8873660
    Abstract: A method and apparatus controls diversity reception in a wireless communication device. By determining a value based on a number of active set pilot signals received from a set of base stations, the wireless communication device dynamically enables or disables diversity reception. Diversity reception can be controlled by adjusting a diversity threshold based on the determined value. A channel quality indicator of a channel is measured and compared against the adjusted diversity threshold. The diversity reception mode is then enabled or disabled based on the comparison. For example, if the number of active pilot signals is above a predetermined value, indicating “good” coverage, the diversity threshold is decreased. The measured channel quality indicator is compared against the adjusted threshold, and diversity reception is enabled when the channel quality indicator is less than the decreased diversity threshold.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: October 28, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Matthew F. Valentine, Steve L. Sheya
  • Patent number: 8868014
    Abstract: An antenna is provided having a good matching characteristics when immersed in a fluid such as saline water, oil, or other liquids (“the phantom liquid”). In some embodiments, the antenna provides a tight capacitive coupling with the phantom liquid through the use of a higher permeability cover and absence of a gap between the cover and the antenna body. One embodiment employs a tunably capacitively loaded inverted “F” antenna structure. Additional embodiments of the invention provide an antenna tuning system that saves power by utilizing very low duty cycle periodical refreshing charge at a tuning varactor diode coupled to the antenna.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: October 21, 2014
    Assignee: Olympus Corporation
    Inventor: Ivan Krivokapic
  • Publication number: 20140302807
    Abstract: An antenna array includes a plurality of radiating elements disposed on a layer that is situated above an egg crate structure that is formed of interconnected dielectric panels. In some embodiments, balun circuitry is disposed on at least some of the dielectric panels of the egg crate structure for use in feeding corresponding radiating elements of the array in a balanced manner. Ground plane blocks may also be coupled to some or all of the dielectric panels to provide circuit shielding and/or to form a ground plane for the array antenna.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 9, 2014
    Applicant: Raytheon Company
    Inventors: Jar J. Lee, Stan W. Livingston
  • Patent number: 8838027
    Abstract: A communication device comprising at least first and second antennas wherein a quality of communication between the communication device 2 and a further device 20 is assessed when using the at least first and second antennas 8, 10, 12 so as to select one of the at least first and second antennas for further communications between the communication device and the further device.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: September 16, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: John Waters
  • Patent number: 8831512
    Abstract: An apparatus and method is disclosed to negotiate communications parameters between near field communications (NFC) capable devices. In some embodiments, the NFC capable devices operate in a negotiation phase to negotiate one or more communications parameters prior to transferring information. In other embodiments, the NFC capable devices simultaneously negotiate the one or more communications parameters with the transferring of the information.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Peter Laws, John Waters
  • Patent number: 8825094
    Abstract: Network node for a distributed cooperative multi-antenna communication, including at least two sending and receiving units, wherein the network node is adapted to receive an indication of a protocol descriptor from a mobile communication device and wherein the network node is communicatively couplable with at least one further network node. Furthermore, the network node may be adapted to provide and/or receive an indication of a protocol descriptor and/or a channel access method to/from the at least one further network node.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 2, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Thomas Haustein, Thomas Wirth, Venkatkumar Venkatasubramanian
  • Patent number: 8818320
    Abstract: A receiver includes an antenna unit that is able to receive a transmission signal from a subject alternately at different reception levels. A wave detection unit wave-detects the transmission signal to generate a detection signal. The detection signal has a signal level that becomes fixed in accordance with the transmission signal when the antenna unit receives the transmission signal at a reception level greater than or equal to a reception limit, and the signal level of the detection signal becomes non-fixed when the antenna unit receives the transmission signal at a reception level that is less than the reception limit. A correction unit removes, when the detection signal includes a fixed value session and a non-fixed value session, the non-fixed value session and corrects the signal level of the non-fixed value session to a level equivalent to the signal level of a fixed value session.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: August 26, 2014
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventor: Masanori Kosugi
  • Patent number: 8817917
    Abstract: A method for detecting the digital quality of a radio signal includes: receiving a radio signal including a digital portion modulated by a series of symbols each including a plurality of samples; computing correlation points between endpoint samples in cyclic prefix regions of adjacent symbols; and using the correlation points to produce a digital signal quality metric. Receivers that implement the method are also provided.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 26, 2014
    Assignee: iBiquity Digital Corporation
    Inventors: Brian W. Kroeger, Paul J. Peyla
  • Patent number: 8811927
    Abstract: In one embodiment, a receiver is provided for use in a multiple-input system that includes a receiving antenna receiving a time-domain signal corresponding to a plurality of signals transmitted from a plurality of transmitting antennas. The receiver includes: (a) a transform unit adapted to transform the time-domain signal into a frequency-domain signal; (b) a channel estimation unit adapted to estimate, based on the frequency-domain signal and a frequency-domain pilot signal, a combined transfer function corresponding to a plurality of transfer functions of respective channels between the plurality of transmitting antennas and the receiving antenna; and (c) a channel separation unit including a plurality of frequency-domain convolution units that separate the combined transfer function into a plurality of estimated channel transfer functions.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: August 19, 2014
    Assignee: Agere Systems LLC
    Inventors: Kameran Azadet, Samer Hijazi, Sunitha Kopparthi, Albert Molina, Ramon Sanchez
  • Patent number: 8811530
    Abstract: Aspects of a method and system for beamforming a broadband signal through a multipart network are provided. In this regard, a plurality of signals received via a plurality of antennas may be detected and a plurality of transmit signals may be generated, wherein a phase of at least one of the plurality of transmit signals is responsive to at least one of the detected phases of the received signals. Each of the generated plurality of transmit signals may be separately amplified to generate a plurality of amplified signals. A plurality of the amplified signals may be input to a plurality of first ports is of a multi-port network, wherein at least one second port of the multi-port network may be responsive to signals input to at least two of the plurality of first ports.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 19, 2014
    Assignee: Broadcom Corporation
    Inventors: Robert Gustav Lorenz, Bertrand M. Hochwald
  • Patent number: 8798569
    Abstract: The present invention discloses a channel estimation method and device in a multi-antenna system. The method includes: obtaining the original channel estimation value of each array element of an array antenna for each uplink user received by the antenna; converting them into a channel estimation matrix; dividing the channel estimation matrix into an amplitude matrix and a phase matrix; grouping the elements of each array element at the same tap location in the amplitude matrix together for signal transformation processing and performing transform domain noise reduction to the high-frequency portion of the obtained transform domain data; inversely transforming the noise-reduced data to a noise-reduced amplitude matrix; and combining the noise-reduced amplitude matrix with the phase matrix into a restored channel estimation matrix, wherein the amplitude of each channel estimation value of the restored channel estimation matrix has undertaken a multi-antenna transform domain noise reduction process.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: August 5, 2014
    Assignee: ZTE Corporation
    Inventors: Fan Shi, Jiahai Li
  • Patent number: 8768248
    Abstract: A multi-protocol, multi-band array antenna system may be used in Radio Frequency Identification (RFID) system reader and sensory networks. The antenna array may include array elements with an integrated low noise amplifier. The system may employ digital beam forming techniques for transmission and steering of a beam to a specific sensor tag or group of tags in a cell. The receive beam forming network is optimized for detecting signals from each sensor tag. Narrow and wideband interferences may be excised by an interference nulling algorithm. Space division multiplexing may be used by the antenna system to enhance system processing capacity.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: July 1, 2014
    Assignee: Mojix, Inc.
    Inventor: Ramin Sadr
  • Patent number: 8766777
    Abstract: Non-RFID-active units in a space are marked by affixing RFID tags. Two tags are affixed to each unit, each tag having a directional antenna. The antennas are oriented to define a per-unit reader location. Units are arranged in the space so the per-unit reader locations at least partially overlap to define a reader location. The units in the space can also be detected by an RFID reader located in the overlapping per-unit reader locations. A controller can compare a received list of tag identities corresponding to units expected to be in the container to the identities of the tags read to determine whether the expected units are in the container and disposed at positions and with orientations that cause the respective per-unit reader locations to at least partially overlap with the reader location.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: July 1, 2014
    Assignee: Eastman Kodak Company
    Inventors: Mark P. Hinman, Edward Zogg, Donald Saul Rimai
  • Publication number: 20140179252
    Abstract: A communication device includes: a first antenna and a second antenna; a switch unit selecting the first antenna in a first term and the second antenna in a second term; a reception determination unit determining whether or not communication data contained in wireless signals received by the first antenna and the second antenna; and a storage unit storing association between each of communication terminals and one of the first antenna and the second antenna, in which the switch unit sets lengths of the first and second terms so that a ratio of the respective lengths of the first and second terms is equal to a ratio of the number of times the communication data from the communication terminals respectively associated with the first and second antennas and is determined to be successfully obtained.
    Type: Application
    Filed: May 21, 2013
    Publication date: June 26, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji Takagi, Naotake Yamamoto, Yosuke Ukita
  • Patent number: 8755357
    Abstract: A method and apparatus manages resources in a wireless communication system by transmitting a multi-carrier switch command message to an access terminal instructing the access terminal to switch between a diversity mode where each antenna module of a plurality antenna modules receives a single carrier signal transmitted at a single carrier frequency and a multi-carrier mode where a first antenna module of the plurality antenna modules receives a first multi-carrier signal transmitted at a first carrier frequency and a second antenna module receives a second multi-carrier signals transmitted at a second carrier frequency.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: June 17, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Lorenzo Casaccia, Durga Prasad Malladi
  • Patent number: 8750896
    Abstract: A system and methodology that can utilize attachment data collected by a set of femto access points (FAPs) to localize, predict, and/or weight potential wireless communication traffic within and between areas, is provided. Moreover, the attachment data can be indicative of user equipment (UE) density/traffic within coverage areas of respective femtocells. The attachment data can be consolidated and analyzed to identify location and motion of a UE “swarm”. Moreover an automatic cell planning (ACP) component can be employed to utilize the attachment data for determining an optimal macro site and optimal antenna setting(s) that facilitate steering/tuning the macro antenna beam to focus upon the swarm area. In addition, the ACP component can facilitate reconfiguration of the macro antenna beam as reported swarm concentrations shift between the FAPs.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: June 10, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Arthur Brisebois, Mark Causey, Adrianne Luu
  • Patent number: 8750792
    Abstract: Embodiments of the present invention are directed to methods, apparatuses, and systems for implementing a point-to-point radio architecture in which the isolation needed between the transmitter and receiver may be achieved through the use of separate antennas. One embodiment is directed at a radio head comprising a transmitter configured to operate at a first frequency, a receiver configured to operate at a second frequency, and a processor coupled to both the transmitter and the receiver. The transmitter is further coupled to a first antenna interface coupled to a first antenna configured to transmit signals at the first frequency. The receiver is further coupled to a second antenna interface coupled to a second antenna configured to receive signals at the second frequency.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 10, 2014
    Assignee: Remec Broadband Wireless, LLC
    Inventors: Charles Bowman, Behzad Moeenziai
  • Patent number: 8744394
    Abstract: 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: Grant
    Filed: January 7, 2013
    Date of Patent: June 3, 2014
    Assignee: Marvell International Ltd.
    Inventors: Milind Kopikare, Brian Bosso, Partho Mishra
  • Patent number: 8742896
    Abstract: A system for and method of tracking and locating RFID tags, including where at least one steerable phase array antenna may locate the tags associated with items in three dimensions in real time, through the use of a beam steering unit and controller therewith to control the direction of a beam launched by the at least one steerable phase array antenna.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: June 3, 2014
    Assignee: RF Controls, LLC
    Inventor: Graham P. Eloy
  • Patent number: 8737945
    Abstract: According to an embodiment of the present invention, a method is provided for measuring inter-frequency in a receiver including a plurality of reception antennas. The method may comprise the steps of: performing a service using a first frequency through a first antenna and/or a second antenna; measuring a second frequency using the first antenna while the service continues to be performed using the first frequency through the second antenna; and estimating the measurement result without the second frequency being practically measured through the second antenna by using the measurement result of the second frequency through the first antenna.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Manyoung Jung, Suhwan Lim, Yoonoh Yang, Sangwook Lee
  • Patent number: 8710961
    Abstract: An anti-fake battery pack and an identification system thereof has a casing and multiple battery cells, each of which as a battery body, an inner identifier mounted outside the battery body, a protection layer mounted around outside of the battery body and the outer identifier formed on the protection layer. An external identifying device has to read a first and second identification codes from the inner and outer identifiers to determine whether the battery cell is authentic or not. In addition, the inner identifier is covered by the protection layer, so the inner identifier can not stolen without breaking the protection layer with the outer identifier. Therefore, the identifying system provides double identifying procedures to increase security of identification and decrease the possibility of copying the first and second identification codes.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: April 29, 2014
    Inventor: Chih-Ang Yao
  • Patent number: 8706165
    Abstract: An omni-radio base station with multiple sector antenna units uses frequency division of sector signals to achieve increased coverage or capacity at reduced cost. Each sector antenna unit has an antenna for receiving a carrier signal associated with an antenna frequency in an available frequency band. At least one of the antenna units has an associated frequency converter that converts the carrier signal received by that antenna unit from the antenna frequency to a different respective frequency. Even though each sector receives the same carrier signal, an output carrier signal associated with each sector is at a different frequency band. A combiner combines the antenna unit carrier signals at different frequencies to create a composite signal for communication to the omni-radio base station.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: April 22, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ulf Skärby, Donald Staudte
  • Patent number: 8693599
    Abstract: Disclosed is a wireless receiving apparatus, whereby inter-antenna interference can be reduced without inducing an increase of a mounting area due to an increase of the number of antennas, and the number of RFIC input terminals, circuit scale and power consumption can be reduced. In the wireless receiving apparatus (100), when a receiving antenna (110-1) and a down-converter (130) are connected with a multiplexer (120) therebetween, a capacity control unit (190-2) controls the capacity value of the capacity-variable parasitic element (180-2) connected to the receiving antenna (110-2) such that the communication capacity of the receiving antenna (110-1) is maximum.
    Type: Grant
    Filed: September 6, 2010
    Date of Patent: April 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Kiyomichi Araki, Noriaki Saito, Tadashi Morita
  • Patent number: 8693974
    Abstract: A receiving apparatus is provided. The receiving apparatus comprises a chip carrier including at least one stack of layers, wherein at least one layer in the stack supports radio frequency transmission lines, tunable bandpass filters, wherein each bandpass filter is integrated within an associated radio frequency transmission line, and at least one integrated micro-chip on the chip carrier. The at least one integrated micro-chip couples selected bandwidth regions of received broadband radio frequency signals to the tunable bandpass filters via the associated radio frequency transmission line. The at least one integrated micro-chip outputs each filtered selected bandwidth region to an associated one of a plurality of intermediate frequency modules.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: April 8, 2014
    Assignee: Honeywell International Inc.
    Inventor: Andrzej Peczalski
  • Patent number: 8692702
    Abstract: Disclosed is an analog-digital converter which includes a pre-amplifier configured to output a comparison result between a sampled analog input signal and a reference signal and to control a power supply operation in response to a power control signal; a digital signal processor configured to generate a digital signal based on the comparison result; a power controller configured to generate an amplifier operation clock signal for controlling the pre-amplifier; and a counter configured to count the number of falling edges of the amplifier operation clock signal and to detect a power interruption point of time of the pre-amplifier according to the counted falling edge number. The power controller generates the power control signal for interrupting a power to be supplied to the pre-amplifier when the power interruption point of time of the pre-amplifier is detected.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jaewon Nam, Young Kyun Cho, Yil Suk Yamg
  • Patent number: 8682274
    Abstract: An information handling system includes a processing system with a radio output, another processing system with a radio output, and a radio selector operable to couple an antenna to a selected one of the radios. A radio selector board includes a radio, a selector switch with an input terminal coupled to the radio, another input terminal coupleable to another radio, a control input coupleable to a control module, and an output coupleable to an antenna. In response to a control signal from the control module, the selector switch connects the first radio to the antenna, and in response to another control signal, the selector switch connects the other radio to the antenna.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: March 25, 2014
    Assignee: Dell Products, LP
    Inventors: Andrew T. Sultenfuss, James R. Utz, Larry W. Finn
  • Patent number: 8676142
    Abstract: In a radio communication station having antennas an antenna diversity system and a gain controllable amplifier the gain of the gain controllable amplifier is set by using a first antenna, the signal levels of signals received at the antennas is measured, a group of antennas is determined having a signal level which exceeds the signal level of the first antenna by no more than a predetermined value, and out of said group of antennas the antenna with the highest signal level is selected out or the first antenna is selected out if said group is empty.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 18, 2014
    Assignee: Infineon Technologies AG
    Inventor: Mikael Rudberg
  • Patent number: 8660512
    Abstract: A filter stage for use in a receiver includes a switch with an input coupled to an antenna terminal, a first output and a second output; a first filter of a first type coupled to the first output; and a second filter of a second type different from the first type, coupled to the second output. A receiver includes a filter stage as mentioned above; and a switching unit coupled to the filter stage for controlling a switching state of the switch, to selectively connect the antenna terminal to the second output, depending on a selection signal.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: February 25, 2014
    Inventors: Bernd Adler, Feridoon Jalili, Mikael Bergholz Knudsen, Michael Wilhelm
  • Patent number: 8634481
    Abstract: In a wireless communication system using multiple antennas at the transmitter and multiple antennas at the receiver, a so called multiple-input multiple-output (MIMO) system, a substantial improvement in capacity over the case of no feedback can be achieved using considerably less bandwidth than is required to feedback the channel estimate or channel statistics, by supplying as feedback for each data substream of an overall data stream an indicator of a rate and/or an indicator of a gain for transmission of that data substream. The indicator of the rate and/or the indicator of the gain may be the rate and/or gain directly or an encoded representation of the rate and/or gain. Typically, the best performance is achieved if indicators of both the rate and the gain are fed back. If the invention is implemented for wireless systems, then typically for each data substream there is a separate, independent antenna.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: January 21, 2014
    Assignee: Alcatel Lucent
    Inventors: Seong-Taek Chung, Howard C Huang, Angel Lozano
  • Patent number: 8634792
    Abstract: An RF receiver section includes an adjustable antenna assembly, a low noise amplifier module, and a down conversion module. The adjustable antenna assembly is configured to provide a first receive antenna structure and a second receive antenna structure. The first and second receive antenna structures receive an inbound wide bandwidth RF signal that includes an interferer RF signal component and a desired inbound RF signal component. The effective polarization of at least one of the first and second receive antenna structures is adjusted to reduce signal strength of the interferer RF signal component.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: January 21, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran
  • Patent number: 8630601
    Abstract: An active channelized antenna system includes an antenna array operable over a multi-octave frequency band to provide one or more antenna output signals. An electronics module includes multiplexer circuitry responsive to the one or more antenna output signals configured to divide an input signal spectrum into a plurality of frequency band components each of less than an octave bandwidth. The electronics module includes a plurality of amplifiers each of less than an octave bandwidth to provide an amplified component signal for a respective frequency band. Combiner circuitry included with the electronics module is configured to combine the amplified frequency band components into a composite signal. A transmission medium such as a coaxial cable, fiber optic line or free space, is configured to transmit the composite signal to a remotely located receiver system. The antenna system may be employed as a repeater system.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: January 14, 2014
    Assignee: Raytheon Company
    Inventors: Charles Chandler, Roger A. Conrad, Robert A. Deaton
  • Publication number: 20140011468
    Abstract: A method for receiving a radio signal by a receiver including a 2-dimensional antenna array which consists of a plurality of antenna elements in a wireless communication system includes: dividing the plurality of antenna elements into a plurality of groups; determining a group-specific reception beam for each of the plurality of groups; applying the group-specific reception beam to a channel corresponding to each of the plurality of groups to acquire virtual channels respectively corresponding to the plurality of groups; and estimating channels respectively corresponding to the plurality of groups based on reference signals received through the virtual channels.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 9, 2014
    Inventors: Hanjun PARK, Jonghyun PARK, Kijun KIM, Hanbyul SEO
  • Patent number: 8626242
    Abstract: To provide an adaptive array antenna capable of increasing resolution of a variable beam direction of the antenna without increasing a calculation amount in arithmetic processing unit for optimally controlling a variable phase shifter. A parasitic element-equipped adaptive array antenna (100) includes n (n is an integer equal to or greater than 2) parasitic antenna elements (1011 to 101n), (n?1) fed antenna elements (1021 to 102n?1) which are coupled to the parasitic antenna elements (1011 to 101n) by electromagnetic fields, and (n?1) variable phase shifters (1041 to 104n?1) which change the phases of radio frequency signals to be supplied to the respective fed antenna elements (1021 to 102n?1). Each of the fed antenna elements (1021 to 102n?1) is arranged astride at least two of the parasitic antenna elements (1011 to 101n).
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: January 7, 2014
    Assignee: Panasonic Corporation
    Inventor: Takeshi Ono
  • Patent number: 8626101
    Abstract: A wireless electronic device may contain multiple antennas. Control circuitry in the wireless electronic device may adjust antenna switching circuitry so that the device repeatedly cycles through use of each of the antennas. In a device with first and second antennas, the device may repeatedly toggle between the first and second antennas. During each toggling cycle time period, the first antenna may transmit for a fraction of the time period and the second antenna may transmit for a fraction of the time period. The wireless device may control the average power emitted by each antenna by adjusting the fractions of time assigned to each antenna. By performing antenna toggling, the average transmit power produced by each antenna may be reduced while maintaining the average transmit power produced by the device at a desired level.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: January 7, 2014
    Assignee: Apple Inc.
    Inventors: Michael J. Stallman, Nicholas W. Lum
  • Patent number: 8626109
    Abstract: A method for controlling receive diversity of an antenna system of a computer device, the antenna system including two or more antenna elements. The method includes establishing a session with a remote transmitting system and determining whether a predetermined criteria detected by the computer device is satisfied within the session. If the predetermined criteria is satisfied within the session, the method includes activating at least two of the antenna elements for receiving transmissions, enabling performance of receive diversity on the received transmissions, and performing receive diversity on the received transmissions. If the predetermined criteria is not satisfied within the session, the method includes activating at least one of the antenna elements, disabling performance of receive diversity on the received transmissions, and performing a default signal processing on the received transmissions. A mobile communication device may be used to perform the method.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: January 7, 2014
    Assignee: BlackBerry Limited
    Inventors: David Ma, Asif Hossain, Rakesh Gupta
  • Patent number: 8620248
    Abstract: A multichannel receiver system comprises a first plurality of receiver circuits, each having a first input connected to a corresponding one of a second plurality of input lines, each being arranged to provide a corresponding one of a third plurality of received signals; a second input connected to a local oscillator arranged to provide a local oscillator signal; and an output arranged to provide a corresponding one of a fourth plurality of output signals; and an upconversion mixer having a first mixer input for receiving a reference signal; a second mixer input connected to the local oscillator; and a mixer output providing an upconverted reference signal to a fifth plurality of directional couplers, each directional coupler connected to a corresponding one of the second plurality of input lines.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 31, 2013
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Bernhard Dehlink, Ralf Reuter
  • Patent number: 8620245
    Abstract: A mobile device having at least two antennas can circumvent transmission problems caused by a user's grasp of the device. A sensor unit is disposed at a specific location of a device body and creates a sensor signal by detecting the contact or proximity of a particular object such a user's hand. When receiving the sensor signal, a control unit selects one of the antennas depending on the sensor signal and establishes a communication path based on the selected antenna. The selected antenna involved in the communication path is typically relatively free from degradation in transmission caused by a user's grasp of the mobile device. The radiation property of the mobile device, which may be degraded due to a user's grasp, can exhibit relatively little or no degradation as compared to the typical degradation in performance when the mobile device is being grasped.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: December 31, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Gwon Chung, Hyun Kim, Myeong Hwa Kim, Geun Woo Kim, Kyung Hwan Jo, Doo Na Kim
  • Patent number: 8615191
    Abstract: A distribution apparatus which distributes to multiple regions includes: a storage unit which stores each of radio communications systems usable for each of the regions; a selecting unit which selects, out of the multiple regions to which the distribution apparatus distributes, first regions in which a radio communications system in operation is the same; and a distribution unit which distributes, based on each of the radio communications system usable for each of the regions that is stored in the storage unit, all or some of information on the radio communications system for each of the first regions selected by the selecting unit. One or multiple radio communications systems are usable in each of the regions.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: December 24, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yuta Sagae, Hitoshi Yoshino