Selectively Actuated Or Controlled Patents (Class 455/140)
  • Patent number: 8320858
    Abstract: An apparatus and method for receiving and processing multiple independent, uncorrelated RF signals is presented. The apparatus includes a Hybrid-Direct Conversion Receiver incorporating front end branches, protocol-specific digital processing branches, an interference detector, a correlator, and an offset control for controlling oscillator sources. The front end branches each contain a preselector that filters received signals and a mixer that down converts the received signal to an IF offset from a reference frequency by a unique offset. The bandwidth of an IF processor is partitioned into sub-channels corresponding to the different offsets and is wider than the combination of the sub-channels. The interference detector and correlator determine whether a particular desired signal is degraded by interference signals and select a new sub-channel. This information is provided to the offset control, which adjusts a LO source coupled to the corresponding down mixer accordingly.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: November 27, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Charles R. Ruelke, Ariel L. Galan, Yadunandana N. Rao
  • Patent number: 8320860
    Abstract: Methods and apparatuses for quiet spot detection for radio frequency transmission thereon. According to various embodiments, a device may include a local receiver configured to evaluate one or more frequencies of a frequency band to determine a quiet spot frequency, the device further including a local transmitter configured to transmit signals at the quiet spot frequency.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: November 27, 2012
    Assignee: Marvell International Ltd.
    Inventors: Patrick Clement, Lydi Smaini, Pantas Sutardja
  • Patent number: 8315587
    Abstract: In one implementation, a receiver may have an analog front end with an amplifier to receive a radio frequency (RF) signal and a mixer to downconvert the signal to a baseband signal. Then, a demodulator may receive the baseband signal and obtain an audio signal therefrom. Still further, a controller may be coupled to receive a control signal corresponding to a variable impedance level, and control a local oscillator coupled to the mixer responsive to the control signal. The variable impedance may be controlled by a user to tune to the channel.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: November 20, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: Shahram Tadayon, Wade Robert Gillham, Peter J. Vancorenland, Daniel Mark Thompson
  • Patent number: 8311509
    Abstract: Detection device for detection and generation of detection device generated signal, processed with remote control device generated remote control signal, with location finder or location tracker or navigation signal and with Modulation Demodulation (Modem) Format Selectable (MFS) communication signal. Processor for processing a digital signal into cross-correlated in-phase and quadrature-phase filtered signal and for processing a voice signal into Orthogonal Frequency Division Multiplexed (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signal. Detection device generated signal and location finder signal, with OFDM or OFDMA processed voice signal is used in a Wireless Local Area Network (WLAN) and in Voice over Internet Protocol (VoIP) network. Detection device generated signal and location finder signal with Time Division Multiple Access (TDMA), Global Mobile System (GSM) and spread spectrum Code Division Multiple Access (CDMA) signal is used in a cellular network.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 13, 2012
    Inventor: Kamilo Feher
  • Patent number: 8303398
    Abstract: A gaming machine for conducting a wagering game includes a value input device for receiving a wager and a processor for executing gameplay on the gaming machine. The processor has a plurality of power consumption levels. A power regulator is operative to alter the power consumption level of the processor amongst the plurality of power consumption levels. In an embodiment, the power regulator comprises application software stored on a memory device in communication with the processor.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: November 6, 2012
    Assignee: WMS Gaming Inc.
    Inventors: Stephen A. Canterbury, Victor Mercado
  • Patent number: 8285205
    Abstract: A method and system for a single chip integrated Bluetooth and FM transceiver and baseband processor are provided. The single chip may comprise a Bluetooth radio, an FM radio, a processor system, and a peripheral transport unit (PTU). FM data may be received and/or transmitted via the FM radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. The FM radio may receive radio data system (RDS) data. The PTU may support digital and analog interfaces. A processor in the processor system may time-multiplex processing of FM data and processing of Bluetooth data. The single chip may operate in an FM-only, a Bluetooth-only, and an FM-Bluetooth mode. The single chip may reduce power consumption by disabling portions of the Bluetooth radio during FM-only mode and/or disabling analog circuitry when performing digital processing. Communication between Bluetooth and FM channels may be enabled via the single chip.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: October 9, 2012
    Assignee: Broadcom Corporation
    Inventors: Brima Ibrahim, Mitchell Buznitsky, Ahmadreza Rofougaran, John Walley, Bojko Marholev, Roy Tobin, Prasanna Desai, Angel Polo, Hea Joung Kim, Paul A. Lettieri, Siukai Mak
  • Patent number: 8254861
    Abstract: A method for controlling receiver diversity operation in a base station of a mobile telecommunications network. The base station includes a first receiver arrangement and a second receiver arrangement. The method includes activating the first receiver arrangement, thereby receiving signals at a first gain level. The method also includes activating the second receiver arrangement, thereby receiving signals at a second gain level, the second gain level being equal to or lower than the first gain level. The method further includes measuring baseband consumption at the base station at predetermined intervals. The method finally includes, when the baseband consumption exceeds a predetermined deactivation threshold THDE, deactivating the first receiver arrangement, thereby leaving only the second receiver arrangement active.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: August 28, 2012
    Assignee: Vodafone Group PLC
    Inventors: Francisco Javier Dominguez Romero, Andrea De Pasquale
  • Patent number: 8249527
    Abstract: A radio receiver includes a first receiver module for converting a first radio frequency (RF) signal at a first carrier frequency into a first baseband signal. A second receiver module converts a second RF signal at a second carrier frequency into a second baseband signal. A recombination module combines the first baseband signal and the second baseband signal into an output signal.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: August 21, 2012
    Assignee: VIXS Systems, Inc.
    Inventor: Mathew A. Rybicki
  • Patent number: 8213881
    Abstract: A signal processing system is disclosed. The system includes: a first synthesizer and a second synthesizer, for respectively generating a first frequency and a second frequency; a first RF circuit; a first analog front end (AFE); a second RF circuit; and a second AFE, wherein the first RF circuit and the first AFE can support a signal transmission of a first bandwidth, the second RF circuit and the second AFE can support a signal transmission of a second bandwidth, a central frequency of the first bandwidth is substantially equal to the first frequency, and a central frequency of the second bandwidth is substantially equal to the second frequency.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: July 3, 2012
    Assignee: Realtek Semiconductor Corp.
    Inventors: Kuang-Yu Yen, Chung-Yao Chang
  • Patent number: 8199804
    Abstract: Methods and apparatus are provided for performing equalization of communication channels. In an embodiment of the invention, at least one tap can be selected from a set of feedforward taps of feedforward filter circuitry, where each tap of the selected at least one tap has a magnitude that is greater than or substantially equal to a magnitude of any tap of the set of feedforward taps that is not in the selected at least one tap. In addition, at least one tap can be added to a set of taps of feedback filter circuitry in communication with the feedforward filter circuitry. The invention advantageously allows for more efficient and reliable equalization of communication channels.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: June 12, 2012
    Assignee: Marvell International Ltd.
    Inventor: Kok-Wui Cheong
  • Patent number: 8175557
    Abstract: An integrated circuit radio receiver includes radio frequency (“RF”) front-end circuitry to receive a wireless signal and to produce digital data. The integrated circuit radio receiver includes a baseband processor is operable to process the digital data, in which the baseband processor is operable to produce a format designation based on the digital data. The baseband processor includes a plurality of digital filtering logic in which each of the digital filtering logic includes a level of digital filtering. The baseband processor further includes logic operable to select between each digital filtering logic of the plurality of digital filtering logic based upon the format designation, and to process the digital data with the selected level of digital filtering.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: May 8, 2012
    Assignee: Broadcom Corporation
    Inventor: Weidong Li
  • Patent number: 8165545
    Abstract: A terminal (200) and method for operation thereof for use in a wireless communication system (100), the terminal including a plurality of antennas (215, 235, 255) and a plurality of receiver chains (217, 237, 257) each including an associated one of the antennas, the terminal being operable to receive a signal including a plurality of time divided portions including a first portion (303) and a second portion (304), characterized in that the terminal is operable in a manner such each of the plurality of receiver chains is active when the first portion of the signal is being received and at least one of the receiver chains is inactive when the second portion of the signal is being received.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: April 24, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Moshe Ben-Ayun, Ovadia Grossman, Salomon Serfaty, Gadi Shirazi
  • Patent number: 8160522
    Abstract: A receiving apparatus and method of a Multiple Input Multiple Output (MIMO) system are provided. The receiving apparatus includes a clock generation/delay compensation unit for generating a clock, an antenna switching unit for temporally dividing signals received through multiple antennas by performing switching according to the clock, a radio frequency (RF) chain to be shared for converting the temporally divided signals into baseband signals, and an analog to digital converter (ADC) to be shared for converting the converted signals into digital signals and for outputting the converted signals according to the clock. Accordingly, the number of RF chains used to implement a MIMO RFIC is reduced.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Yong Lee, Hyun-Il Kang
  • Patent number: 8103227
    Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes a first receiving unit, a second receiving unit, a known sequence detector, a equalizer, and a display unit. The first receiving unit receives a first broadcast signal including first mobile broadcast service data and first main broadcast service data. The second receiving unit receives a second broadcast signal including second mobile broadcast service data and second main broadcast service data. The known sequence detector detects at least one of known data included in the received first broadcast signal and known data included in the received second broadcast signal. The channel equalizer uses the detected known data, thereby channel-equalizing the received first and second mobile broadcast service data corresponding to the detected known data.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: January 24, 2012
    Assignee: LG Electronics Inc.
    Inventors: Il Soo Cho, Hyeon Cheol Cho, Jong Sun Park, In Hwan Choi, Hyoung Gon Lee, Won Gyu Song, Seung Man Kim, Jong Moon Kim, Jin Woo Kim, Kook Yeon Kwak, Byoung Gill Kim
  • Patent number: 8102960
    Abstract: A method and apparatus to improve adaptation speed of a digital receiver is presented. The receiver includes an equalizer to initiate adaptation to a transmission channel responsive to a first control signal, a slicer coupled to the equalizer to generate symbol decisions based at least in part on an equalized digital signal, logic to receive the symbol decisions and generate a selection signal when a lock onto a training sequence of the symbol decisions occurs, first and second phase detectors to detect phase errors of the equalized digital signal and an incoming digital signal, respectively, and a clock generator to generate a clock signal responsive to one of the first and second phase errors.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: January 24, 2012
    Assignee: Intel Corporation
    Inventors: Adee Ran, Ehud Shoor, Amir Mezer
  • Patent number: 8086195
    Abstract: A communication unit for a radio communication system comprises a receiver for receiving data over an air interface. The receiver can operate in a first diversity mode and a second diversity mode. The first diversity mode may specifically correspond to no receive diversity being employed and the second diversity mode may correspond to signals from two or more fully or partially de-correlated antennas being combined. The communication unit comprises a data unit which determines a first data characteristic for a section of data to be received over the air interface. A switching unit is arranged to switch between the first diversity mode and the second diversity mode in response to the first data characteristic. The invention may allow improved performance and e.g. reduced power consumption by allowing an improved adaptation of diversity operation. In particular, an improved trade-off between power consumption and performance may be achieved in many embodiments.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: December 27, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Howard J. Thomas, Davood Molkdar, Steven J. Simpson
  • Patent number: 8054779
    Abstract: A system and method for providing the ability to discover the capabilities of a user's computer to determine whether it is capable of supporting more than one wireless protocol simultaneously is provided. A computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports at least two specific wireless protocols and checking a computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports both wireless protocols simultaneously. The techniques for determining the computing device's compatibility may include comparing lists of protocol requirements to lists of system capabilities and/or generating test signals by the system according to the protocol.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: November 8, 2011
    Assignee: Microsoft Corporation
    Inventors: Amer A. Hassan, Deyun Wu, Hui Shen, Christian Huitema, Thomas W. Kuehnel
  • Patent number: 8032098
    Abstract: MIMO receiver with a reconfigurable pooled digital filter is disclosed. A processor sets parameters of the filter to minimize the number of instructions per second and the amount of power required by the filter to perform, while matching the filter to a transmitter filter. The processor uses an algorithm or a lookup table stored in memory to select the combination of filter parameters. The parameters may be selected from at least one of: a number of taps, a filter length, a word length, a coefficient quantization, a sampling rate, bits per sample, a sampling bit, a tap delay and a coefficient length. After selecting a combination of filter parameters, the processor sends a control signal to the adaptive filter. The pooled adaptive filter reconfigures itself in accordance with the selected filter parameters.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joseph R. Cleveland, Eran Pisek
  • Patent number: 8023912
    Abstract: Circuits systems and methods for frequency translation and signal distribution includes a downconverter circuit having first and second inputs coupled to receive respective first and second input signals, and an output for providing a downconverted output signal. The downconverter circuit includes a mixer circuit, a first switch, and a second switch. The mixer includes a first input coupled to a reference source, a second input, and an output coupled to the downconverter circuit output. The first switch includes a first port coupled to the downconverter circuit first input, and a second port switchably coupled to the mixer circuit second input. The second switch includes a first port coupled to the downconverter circuit second input, and a second port switchably coupled to the mixer circuit second input.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 20, 2011
    Assignee: RF Magic, Inc.
    Inventors: Branislav Petrovic, Peter Doherty, Yong Zeng
  • Patent number: 8014815
    Abstract: A radioterminal may include a transceiver, a hands-free interface, and a satellite/hands-free interlock. The transceiver may be configured for space-based communications and for terrestrial wireless communications. The satellite/hands-free interlock may be configured to prevent the transceiver from transmitting space-based communications unless the hands-free interface is activated. Related methods are also discussed.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: September 6, 2011
    Assignee: ATC Technologies, LLC
    Inventor: Peter D. Karabinis
  • Patent number: 8010140
    Abstract: A communication device using user cooperation is provided with a channel information reception unit to receive channel information from a plurality of member terminals within the same group, the channel information being associated with a radio channel formed between the plurality of member terminals and a base station; a member terminal selection unit to select at least one active member terminal from among the plurality of member terminals based on the channel information; and a selection information transmission unit to transmit selection information to the base station, the selection information being associated with a radio channel formed between the at least one active member terminal and the base station.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: August 30, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Hoon Suh, Sung Jin Kim, Ping-Heng Kuo, Joon-Il Choi
  • Publication number: 20110195682
    Abstract: A diversity receiver includes a plurality of receiver circuits that are configured to receive and process the received radio frequency signals. A channel estimator is coupled to at least one of the plurality of receiver circuits and is configured to determine at least one channel estimation value for the received radio frequency signals. A controller is coupled to the channel estimator and to at least one of the plurality of receiver circuits and is configured to selectively activate or deactivate the at least one of the plurality of receiver circuits based on the determined at least one channel estimation value.
    Type: Application
    Filed: April 1, 2011
    Publication date: August 11, 2011
    Applicant: Infineon Technologies AG
    Inventor: Reinhard Rückriem
  • Patent number: 7996049
    Abstract: Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, a remote unit in accordance with the invention includes a spatial processing unit to process signals received by a plurality of antennas.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 9, 2011
    Assignee: Intel Corporation
    Inventors: Craig H. Barratt, Athanasios A. Kasapi
  • Patent number: 7986980
    Abstract: A method, apparatus, memory embodying a program, and others are described determining a first traffic pattern for a first radio access system of an apparatus, determining a second traffic pattern for a second radio access system of the apparatus, and restricting operation of at least one non-radio sub-system of the apparatus based on the first traffic pattern and on the second traffic pattern. It is notable that the first and second traffic patterns span a common time interval. In a multiradio device, the traffic patterns are generated by a multiradio controller in order to inhibit instances where one radio would interfere in time and frequency with another. Those traffic patterns are used by a resource manager to manage power draw from the battery by delaying full operation of other sub-systems to a time when the traffic patterns indicate no radio is scheduled. Another use of the traffic patterns for power savings is also detailed.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 26, 2011
    Assignee: Nokia Corporation
    Inventors: Jukka M. Nurminen, Petri A. Tuominen
  • Patent number: 7953382
    Abstract: Methods and apparatuses for quiet spot detection for radio frequency transmission thereon. According to various embodiments, a device may include a local receiver configured to evaluate one or more frequencies of a frequency band to determine a quiet spot frequency, the device further including a local transmitter configured to transmit signals at the quiet spot frequency.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 31, 2011
    Assignee: Marvell International Ltd.
    Inventors: Patrick Clement, Lydi Smaini, Pantas Sutardja
  • Patent number: 7937052
    Abstract: A multiple input multiple output signal receiving apparatus includes a first antenna configured to receive a first radio frequency (RF) signal, a second antenna configured to receive a second RF signal, a superheterodyne receiver, a direct conversion receiver, and an antenna switching module. The superheterodyne receiver is configured to convert one or both of the first and second RF signals into at least one first analog signal. The direct conversion receiver is configured to convert one or both of the first and second RF signals into at least one second analog signal. The antenna switching module couples the first and second antennas to the superheterodyne receiver and the direct conversion receiver, and is configured to selectively direct the first and second RF signals to the superheterodyne receiver and/or the direct conversion receiver, depending on an antenna switch control signal indicating a signal quality derived from the first and second analog signals.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: May 3, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: An Tuyen Banh, Yong Su, Xinguang Xu
  • Patent number: 7933629
    Abstract: Provided is a low-complexity transmit/receive antenna selection method for Multi-Input Multi-Output (MIMO) systems. The method includes the steps of generating a gain matrix of receive channel, calculating norm values of channel gains for each row (receive antennas) and column (transmit antennas) of the generated gain matrix of the receive channel, selecting an antenna with the maximum norm value among the calculated norm values of channel gains, and repeatedly performing the process of alternately selecting transmit and receive antennas having the maximum channel gain value among the channel gain values of the selected antenna until a required number of antennas is all selected.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: April 26, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dong-Seung Kwon, Chung-Gu Kang, Jun-Ho Son
  • Patent number: 7929921
    Abstract: A wireless communications device (100) includes a primary radio frequency branch (134) and a diversity branch (136), which is enabled and disabled to balance performance and power consumption. Diversity mode operation of the device is controlled, for example, based on one or more of an estimated channel quality indicator, data reception, data rate, state or mode of the station, estimated signal to noise ratio of a pilot signal, battery power level, distance from a serving cell, among other factors.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: April 19, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Robert T. Love, Kenneth A. Stewart
  • Patent number: 7925230
    Abstract: A diversity receiver includes a plurality of antennas to receive radio frequency signals. A plurality of receiver circuits are each coupled to a respective one of the plurality of antennas to process the received radio frequency signals, and a channel estimator is coupled to at least one of the receiver circuits to determine at least one of channel estimation values for the received radio frequency signals. A controller is coupled to the channel estimator and to at least one of the receiver circuits and selectively activates or deactivates the at least one receiver circuit based on the determined at least one channel estimation value.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: April 12, 2011
    Assignee: Infineon Technologies AG
    Inventor: Reinhard Rückriem
  • Patent number: 7917107
    Abstract: A method for selecting antennas in a multiple-input, multiple-output wireless communications network that includes multiple stations is presented. Each station includes a set of transmit RF chains and a set of receive RF chains, and each RF chain is connectable to a set of antennas. A first station transmits a training frame for each possible subset of the set of antennas, and the set of transmit RF chains are connected to the subset of antennas according to a connection mapping rule while transmitting each training frame. A subchannel matrix is estimated in a second station for each frame. The subchannel matrices are combined to obtain a complete channel matrix. A particular subset of the antennas is selected according to the complete channel matrix. The set of transmit RF chains is connected to the selected particular subset of antennas to transmit data from the first station to the second station.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: March 29, 2011
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Daqing Gu, Andreas F. Molisch, Jinyun Zhang, Hongyuan Zhang, Dong Wang
  • Patent number: 7907922
    Abstract: A receiver implemented without using a phase locked loop frequency synthesizer and a receiving method of a receiver implemented without using a phase locked loop frequency synthesizer are provided. The receiver includes a radio frequency (RF) receiving unit; a band-selecting unit; an RF amplifier; a local oscillation (LO) signal generator; a mixer; an IF amplifier; an analog to digital (A/D) converter; and a channel-selecting unit. The method includes passing a frequency band of a radio frequency (RF) signal received by an RF receiving unit; amplifying the passed RF signal; generating a local oscillation (LO) signal having a fixed frequency; mixing the LO signal with the amplified RF signal to lower the frequency of the amplified RF signal; outputting an intermediate frequency (IF) signal; amplifying the IF signal; converting the amplified IF signal into a digital signal; and selectively passing frequencies of the digital signal corresponding to a specific channel.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: March 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Ho Lee, Joong-suk Park
  • Patent number: 7885607
    Abstract: A transceiver includes a receiver configured to receive a radio frequency (RF) signal via a wireless communication link. The wireless link has a predetermined link characteristic. The RF signal includes a plurality of encoded Orthogonal Frequency Division Modulation (OFDM) symbols. A receive baseband processor recovers each OFDM symbol encoded within the RF signal. The baseband processor includes an estimation unit configured to continuously measure a signal quality of the wireless communication link based on each recovered OFDM symbol. A MAC layer controller is configured to selectively alter the predetermined link characteristic of the wireless link on an ongoing basis based on the continuously measured signal quality of the wireless communication link.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: February 8, 2011
    Assignee: Marvell International Ltd.
    Inventor: Ravi Narasimhan
  • Patent number: 7865165
    Abstract: Methods of forming scalable systems and scalable systems on an integrated circuit (SoC) are provided. First and second radio frequency (RF) systems are disposed on first and second substrates, respectively. A first processor that is configured to process the first RF system is disposed on a substrate separate from the first substrate and a second processor that is configured to process the second RF system is disposed on a substrate separate from the second substrate. The first processor and the first RF system are stacked one on top of the other to configure a first RFSoC and the second processor and the second RF system are stacked one on top of the other to configure a second RFSoC. The first and second RFSoCs are disposed either in a horizontal plane, laterally spaced from each other, or in vertically stacked planes, one above the other.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: January 4, 2011
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Parker Allen Robinson, Michael Anthony Wyatt, Perry Kevin Falk, Edward Allen Hall
  • Patent number: 7860478
    Abstract: Provided is a poly-phase filter capable of removing an image frequency of a terrestrial digital multimedia broadcasting (T-DMB) receiver in a low intermediate frequency (IF) structure applied to a mobile communication terminal and a receiver having the poly-phase filter. The poly-phase filter includes: a calibration control block for generating first and second filter characteristic control signals which determine electrical characteristics of the filter in response to a control signal including instructions for changing the characteristics of the poly-phase filter and holding the changed values; and a poly-phase filter block for performing filtering on a plurality of input signals having different phases from each other in response to the first and second filter characteristic control signals. Accordingly, the poly-phase filter has advantages of having constant electrical characteristics regardless of changes in a manufacturing process and temperature and a high-performance image rejection function.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: December 28, 2010
    Assignee: FCI, Inc.
    Inventors: Kyoo Hyun Lim, Sun Ki Min
  • Publication number: 20100317304
    Abstract: A system and method of controlling a portable radio may involve tuning a first receiver of the portable radio to a first broadcast from a first station, where the first broadcast includes specific program content. A switching event can be detected at the portable radio, where a second receiver of the portable radio may be tuned to a second broadcast from a second station in response to the switching event. The second broadcast can include the specific program content.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 16, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lama R. Abouchakra, Al Chakra, Lisa Seacat DeLuca, Ravi K. Kosaraju, Julie A. Meserve, Stephen M. Meserve, Steven M. Miller, Mark E. Peters
  • Patent number: 7840177
    Abstract: A media content monitoring system uses a rack adapted to receive multiple carrier boards to improve the system's ability to be configured to specific applications. Each carrier board contains tuner modules for receiving AM/FM broadcasts, satellite radio broadcasts, TV audio broadcasts, HD, IBOC, DAB and DRM digital radio broadcasts, etc. The tuner modules produce a USB output that is combined by a USB hub on the carrier boards into a single USB output. The carrier board outputs are in turn combined by a rack based USB hub into single USB output that is provided to a host computer. The host computer includes content identification software that automatically identifies selected media content received by the tuner modules and stores the selected content in a database. The host computer can send control codes to the tuner modules to alter their reception parameters.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: November 23, 2010
    Assignee: Landmark Digital Services, LLC
    Inventors: David L. DeBusk, Darren P. Briggs, Richard Wardwell, David A. Gilbert, Jack E. Jenkins, Paul P. Griffin, Jr., Fredric I. Graham, George Anderson Cook, Dustin Withers
  • Patent number: 7831228
    Abstract: An integrated circuit radio receiver includes radio frequency (“RF”) front end circuitry for receiving and transmitting digital data received through a wireless interface. A baseband processor is operable to process the digital data received through the wireless interface. A plurality of digital filtering logic is included wherein each digital filtering logic includes a level of digital filtering based upon a received digital data signal format. The integrated circuit radio receiver includes logic that is operable to select between each digital filtering logic of the plurality of digital filtering logic based upon the received digital data signal format to process the digital data received through the wireless interface with the selected level of digital filtering.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: November 9, 2010
    Assignee: Broadcom Corporation
    Inventor: Weidong Li
  • Patent number: 7830980
    Abstract: An embodiment of the present invention provides a wireless station (STA) capable of implicit feedback in a wireless local area network, comprising at least one power amplifier, a plurality of antennas capable of being connected with said at least one power amplifier, and a switch capable of switching the connection between said plurality of antennas and said at least one power amplifier thereby enabling said wireless station to sound a complete channel matrix for an access point (AP) in communication with said wireless station (STA).
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: November 9, 2010
    Assignee: Intel Corporation
    Inventors: Qinghua Li, Xintian Lin
  • Publication number: 20100248665
    Abstract: Methods and apparatus for providing automatic gain control (AGC) for received multi-carrier signals are disclosed. A receiver circuit comprises a common analog signal path, which includes an analog variable-gain circuit and an analog-to-digital converter, and further comprises first and second carrier-specific, digital variable-gain circuits corresponding to first and second carriers of the received multi-carrier signal, respectively. The receiver circuit further includes a gain control circuit configured to control the analog and digital variable-gain circuits and to allot gain adjustments to the analog variable-gain circuit based on a difference between carrier signal levels for the first and second carriers.
    Type: Application
    Filed: March 30, 2009
    Publication date: September 30, 2010
    Inventors: Elias Jonsson, Niclas Danielsson
  • Publication number: 20100151907
    Abstract: The claimed subject matter facilitates sharing antennas among carriers co-located at a base station such to increase throughput of the individual carriers. Thus, the carriers can effectively receive multiple-input/multiple-output (MIMO) from mobile devices though the individual antennas of the carrier alone are not sufficient to receive such signals. A co-sharing interface is provided that takes signals from antennas of one carrier and forwards the signals to a second co-located carrier. In this regard, a carrier can receive signals from a related set of antennas as well as the co-sharing interface component (from a set of antennas related to a disparate carrier) and process the signals in conjunction. Thus, the signals can be disparate portions of a MIMO signal. In addition, the co-sharing interface can modify the signals as defined by the carrier receiving the signals from the interface, such as by applying gain control, alarming, bypass circuitry, and/or amplification.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Applicant: AT&T MOBILITY II LLC
    Inventors: Allenn Han, Ming-Ju Ho, Stalin Fernando Albanes
  • Patent number: 7734269
    Abstract: Control of receiver antenna diversity is described in relation to apparatuses, user radio terminals, a method, and a computer program. The apparatus comprises an interface configured to obtain information on a power control procedure of a radio receiver and a processing unit configured to switch on/off a receiver antenna diversity branch of the radio receiver on the basis of a comparison between a predetermined condition and the information on the power control procedure.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: June 8, 2010
    Assignee: Nokia Corporation
    Inventors: Petri Komulainen, Risto Timisjärvi
  • Publication number: 20100138787
    Abstract: A system and method for providing single-action multi-source presets for vehicle entertainment systems. The method includes the steps of engaging a single-action preset button that changes the active input source to a selected preprogrammed input source and performing an action within that input source.
    Type: Application
    Filed: January 4, 2010
    Publication date: June 3, 2010
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: Anthony Ciatti, John Thomas Kosinski, II, Michael Dean Tschirhart, Wes Albert Nagara
  • Patent number: 7724853
    Abstract: The claimed subject matter relates to enabling antenna switching in a wireless terminal that has multiple receive antennas per receive chain via soft-demodulation and interleaving of concatenated code received in a strip channel. A coherent demodulation protocol may be performed to estimate an SNR for a first antenna during a first time period, and a non-coherent demodulation protocol may be utilized on the strip channel to estimate an SNR for at least one other antenna during a second time period. SNRs may be compared and the terminal may select the antenna with the highest SNR for a next transmission superslot.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: May 25, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Hui Jin, Tom Richardson, Rajiv Laroia, Junyi Li
  • Publication number: 20100099358
    Abstract: An electronic device includes a first receiver configured to receive a first wireless signal, and a first timing module configured to wake up the first receiver from a first sleep state and to generate a synchronization signal indicating a wakeup time of the first receiver. The electronic device also includes a second receiver configured to receive a second wireless signal, and a second timing module configured to receive the synchronization signal and to wake up the second receiver from a second sleep state based on the synchronization signal.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 22, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Gaurav Kumar, Jianqiang He
  • Patent number: 7639995
    Abstract: A communications circuit can operate with a data channel and a control channel. A changeable portion of the circuit can be reconfigurable between a first mode associated with activity on the control channel only and a second mode associated with activity on both the data channel and the control channel. The first mode can be selected to reduce power consumption compared to the second mode. Controller circuitry is provided to sense signals associated with the control channel and to switch the changeable portion between the first and second modes.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: December 29, 2009
    Assignee: Agere Systems Inc.
    Inventors: Christopher John Nicol, Dominic Wing-Kin Yip
  • Patent number: 7634225
    Abstract: The present invention provides a receiver that includes a plurality of tuners for receiving broadcasts such as satellite broadcast. A tuner circuit (1) includes an input terminal (11) for inputting a broadcast wave in which a video signal and/or an audio signal are modulated in a predetermined format, and a mount layer (13) on which a main circuit (12) for selecting, from the broadcast wave, a video signal and/or an audio signal included in a predetermined frequency band is mounted. In the tuner circuit (1), a first ground layer (15) is disposed, through a first dielectric layer (14), on the surface opposite to that on which the main circuit (12) of the mount layer (13) is arranged, and a second ground layer (17) is disposed through a second dielectric layer, thereby suppressing mutual interference between tuners.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: December 15, 2009
    Assignee: Sony Corporation
    Inventors: Satoru Kawakami, Tadashi Imai
  • Patent number: 7627296
    Abstract: By using multiple antennas in a diversity arrangement, a mobile communication device is operable to automatically optimize the best antenna or antenna combination in reaction to the device's immediate environment. The individual antenna designs can be optimized to provide high antenna system efficiency for a number of likely device environments.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: December 1, 2009
    Assignee: Research In Motion Limited
    Inventors: Vytautas Robertas Kezys, Yihong Qi
  • Patent number: 7627068
    Abstract: An apparatus and method for frequency synchronization is proposed to obtain the pilot tones and evaluate the frequency offset and time offset for frequency synchronization. The frequency synchronization method has the following steps: filtering a baseband signal of a frequency correction burst by using multiple pre-filters; measuring the baseband signal and the signals output from the pre-filters to produce the first power value and the second power values respectively; normalizing the maximum second power value by using the first power value so as to produce the first detection value; using the samples of the baseband signal at different time points and a predetermined mathematical function to produce the second detection value; combining the first and second detection values to produce the third detection value; and using the third detection value to determine whether the frequency correction burst is received or not.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: December 1, 2009
    Assignee: Mediatek Incorporation
    Inventors: Wei-Nan Sun, Ho-Chi Huang
  • Patent number: 7596359
    Abstract: A receiving apparatus is for selecting and receiving a radio signal in a frame structure having an information body part including at least information body and an additional part including information for receiving field intensity measurement by using a plurality of antennas. The apparatus includes a controller that measures a receiving field intensity of not a first antenna which has received the information body in a transmission period of the additional part in a current frame but a second antenna, and measures a receiving field intensity of the first antenna in a transmission period of the information body part in the current frame, and if the receiving field intensity of the second antenna exceeds the receiving field intensity of the first antenna, selects and changes to the second antenna as the first antenna of a next frame.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: September 29, 2009
    Assignee: Olympus Corporation
    Inventors: Seiichiro Kimoto, Toshiaki Shigemori, Ayako Nagase, Manabu Fujita, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 7590396
    Abstract: A multimode communication device with a shared signal path programmable filter and a method for utilizing a shared signal path programmable filter in a multimode communication device. Various aspects of the present invention comprise a first module adapted to receive a first communication signal (e.g., corresponding to a first communication protocol) and a second module adapted to receive a second communication signal (e.g., corresponding to a second communication protocol). A shared filter, communicatively coupled to the first and second modules, may be adapted to filter the first and/or second communication signals in accordance with a plurality of selectable sets of filter response characteristics (e.g., associated with the first and second communication protocols). A filter control module may be adapted to select a set of filter response characteristics from a plurality of such sets and program the shared filter to filter a communication signal in accordance with the selected set.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: September 15, 2009
    Assignee: Broadcom Corporation
    Inventors: Arya Behzad, Ahmadreza Rofougaran