Patents Represented by Attorney Michael A. Proksch
  • Patent number: 7203500
    Abstract: An apparatus and associated methods to provide precision ranging measurements in an ultrawideband (UWB) wireless communication system are generally described. In this regard, according to one example embodiment, an innovative ranging agent is introduced that effectively computes one or more of the time of signal propagation, the difference in local clocks and frequency offsets to calculate an increasingly accurate estimate of the proximal distance between two or more devices in UWB communication.x.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: April 10, 2007
    Assignee: Intel Corporation
    Inventors: David G. Leeper, David G. England, Jeffrey D. Hoffman
  • Patent number: 7200060
    Abstract: A memory driver architecture and associated methods are generally described.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: April 3, 2007
    Assignee: Intel Corporation
    Inventors: Timothy S. Beatty, Franco Ricci, Lawrence T. Clark
  • Patent number: 7191381
    Abstract: A method and medium tangibly embodying the method of constructing a lookup table of modes for encoding data for transmission in a wireless communication channel from a transmit unit to a receive unit by using at least one quality parameter of the data and its first-order and second-order statistical parameters to arrange the modes in the lookup table. The first-order and second-order statistical parameters can be determined from a simulation of the wireless communication channel or from field measurements of the wireless communication channel. The modes in the lookup table are ordered by a target value of a communication parameter such as PER, BER, data capacity, signal quality, spectral efficiency, throughput or another suitable communication parameter set to achieve a desired quality of service. The quality parameter selected is conveniently a short-term quality parameter such as signal-to-interference and noise ratio (SINR), signal-to-noise ratio (SNR) or power level.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: March 13, 2007
    Assignee: Intel Corporation
    Inventors: David J. Gesbert, Severine E. Catreux, Robert W. Heath, Jr.
  • Patent number: 7154959
    Abstract: The invention includes a MIMO channel emulator that includes a channel emulator matrix. The channel emulator matrix receives N inputs and generating M outputs. The channel emulator matrix includes a plurality of splitters. Each splitter receives at least one of the N inputs, and each splitter generates a plurality of signal paths. The channel emulator matrix further includes at least one phase shifter. Each phase shifter adjustably shifts a phase of at least one signal path. The channel emulator matrix further includes a plurality of combiners. Each combiner receives more than one of the plurality of signal paths. At least one of the combiners receives a phase adjusted signal path, and each combiner generates at least one of the M outputs. The invention can also include a plurality of fading emulators. Each fading emulator receives at least one emulator input. The plurality of emulators generate the N splitter inputs. The fading emulators can include fading delay lines.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: December 26, 2006
    Assignee: Intel Corporation
    Inventors: Vinko Erceg, Daniel Baum, Arogyaswami J. Paulraj, Victor Shtrom
  • Patent number: 7149254
    Abstract: The present invention provides a method and system for preprocessing transmit signals in spatial multiplexing and diversity systems that include multiple transmit antennae. The method includes generating a representative correlation matrix based upon estimates of a correlation between each pair of the plurality of antennae. An equivalent eigenvalue decomposition of the representative correlation matrix is determined. A preprocessing matrix based upon the equivalent eigenvalue decomposition is generated. Finally, a preprocessor preprocesses the transmit signals by multiplying blocks of data of the transmit signals with the preprocessing matrix. The representative correlation matrix can be an exact estimate of the correlation between each pair of the multiple antennae, or the representative correlation matrix can be an approximate estimate of the correlation between each pair of the multiple antennae.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: December 12, 2006
    Assignee: Intel Corporation
    Inventor: Hemanth Sampath
  • Patent number: 7065051
    Abstract: The invention includes an apparatus and method for wirelessly transmitting data between a plurality of subscriber units and a base transceiver station. The method includes at least one subscriber unit transmitting a request to send data blocks to the base transceiver station. The request includes a data transmission queue size value. A base user queue size estimate is updated at the base transceiver station. The base user queue size estimate corresponds to the one subscriber unit that transmitted the request to send data. The base user queue size estimate is based upon the data transmission queue size value. The base transceiver station generates a schedule that includes time slots and frequency blocks in which the requested data blocks are to be transmitted from the one subscriber unit to the base transceiver station. The subscriber unit transmits the data blocks the subscriber requested to be sent, according to the schedule.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: June 20, 2006
    Assignee: Intel Corporation
    Inventors: Manish Airy, Partho Mishra, Huzur Saran
  • Patent number: 7058134
    Abstract: The present invention provides a method of characterizing a frequency response of a transmission channel between a transceiver and a subscriber unit. The method includes once per predetermined interval of time, the transceiver transmitting a signal including multiple carriers, a plurality of the carriers including training symbols, a plurality of the carriers including information symbols. The subscriber unit generates frequency response estimates at the frequencies of the carriers including training symbols, each interval of time. The frequency response estimates are converted into a time domain response generating an impulse response once per interval of time. The impulse responses are filtered over a plurality of intervals of time. A channel profile is determined from the filtered impulse responses. The channel profile is converted to the frequency domain generating a channel interpolator. The characterized frequency response is generated from the channel interpolator and the frequency response estimates.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: June 6, 2006
    Assignee: Intel Corporation
    Inventor: Hemanth Sampath
  • Patent number: 7058146
    Abstract: A method for interference mitigation in a wireless communication system having multiple transmitters and receivers by introducing transmission time delays between the transmission of signals from the individual transmitters to ensure coherent reception of the signals at a specific point in the coverage area, such as at a center of distribution of the receivers. To further aid in interference mitigation the signals are assigned training patterns chosen to be distinguishable by the receiver and to optimize interference mitigation. The training patterns can be selected based on a feedback parameter, e.g., a measure of the quality of interference mitigation obtained from the receiver. The present method can be used in wireless communication systems which re-use frequencies including TDMA, CDMA, FDMA, OFDMA or other multiplex communication systems using a multiple access method or a combination of such methods.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: June 6, 2006
    Assignee: Intel Corporation
    Inventors: Arogyaswami J. Paulraj, Peroor K. Sebastian, Jose Tellado, Robert W. Heath, Jr.
  • Patent number: 7026670
    Abstract: A ferroelectric memory device and a method of formation are disclosed. In one particular embodiment, a ferroelectric memory device comprises a first electrode layer formed on a substrate, a ferroelectric polymer layer formed on substantial portion of a first electrode layer, a thin layer of conductive ferroelectric polymer formed on a substantial portion of the ferroelectric polymer layer, where the ferroelectric polymer may be made conductive by doping with conductive nano-particles, and a second electrode layer formed on at least a portion of the carbon doped ferroelectric polymer layer.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: April 11, 2006
    Assignee: Intel Corporation
    Inventor: Ebrahim Andideh
  • Patent number: 7012978
    Abstract: The present invention provides a method and system for receiving a plurality of transmission signals at a receiver, the transmission signals each traveling through a corresponding transmission channel. The receiver includes a plurality of receiver channels, a receiver channel corresponding to each transmission channel. Each receiver channel receives a corresponding transmission signal. The received transmission signals are detected to determine whether the received transmission signals are dominated by noise or interference. If the received transmission signals are dominated by noise, then a first set of weights are selected as a receiver weighting. If the received transmission signals are dominated by interference, then a second set of weights are selected as the receiver weighting. The received transmission signals are estimated based upon the receiver weighting.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: March 14, 2006
    Assignee: Intel Corporation
    Inventor: Shilpa Talwar
  • Patent number: 6963619
    Abstract: The present invention includes a wireless communication system. The wireless communication system includes a plurality of transceiver antennae. Each transceiver is spatially separate from at least one other transceiver antenna. Each transceiver antenna includes a transceiver antenna polarization. At least one transceiver antenna has a polarization that is different than at least one other transceiver antenna. Each transceiver antenna transmits a corresponding data stream. The wireless communication system further includes a plurality of receiver antennae. The receiver antennae receive at least one data stream. The transceiver antenna polarization of each transceiver antenna is pre-set to optimize separability of the received data streams. A transmission channel between the transceiver antennae and the receiver antennae can be estimated with a channel matrix. The pre-set transceiver antenna polarization of each transceiver antenna can be determined by minimizing a singular value spread of the channel matrix.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: November 8, 2005
    Assignee: Intel Corporation
    Inventors: David J. Gesbert, Peroor K. Sebastian, Vinko Erceg, Victor Shtrom, Sanjay Kasturia, Arogyaswami J. Paulraj
  • Patent number: 6951764
    Abstract: A ferroelectric memory device and a method of formation are disclosed. In one particular embodiment, a ferroelectric memory device comprises a first electrode layer formed on a substrate, a ferroelectric polymer layer formed on substantial portion of a first electrode layer, a thin layer of conductive ferroelectric polymer formed on a substantial portion of the ferroelectric polymer layer, where the ferroelectric polymer may be made conductive by doping with conductive nano-particles, and a second electrode layer formed on at least a portion of the carbon doped ferroelectric polymer layer.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: October 4, 2005
    Assignee: Intel Corporation
    Inventor: Ebrahim Andideh
  • Patent number: 6937592
    Abstract: A wireless communications adapts its mode of operation between spatial multiplexing and non-spatial multiplexing in response to transmission-specific variables. An embodiment of a wireless communications system for transmitting information between a base transceiver station and a subscriber unit includes mode determination logic. The mode determination logic is in communication with the base transceiver station and the subscriber unit. The mode determination logic determines, in response to a received signal, if a subscriber datastream should be transmitted between the base transceiver station and the subscriber unit utilizing spatial multiplexing or non-spatial multiplexing. In an embodiment, the mode determination logic has an input for receiving a measure of a transmission characteristic related to the received signal.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: August 30, 2005
    Assignee: Intel Corporation
    Inventors: Robert W. Heath, Jr., Rajeev Krishnamoorthy, Peroor K. Sebastian, Arogyaswami J. Paulraj
  • Patent number: 6934266
    Abstract: The invention includes an apparatus and a method for scheduling wireless transmission of data blocks between multiple base transceiver stations and multiple receiver (subscriber) units. A scheduler unit receives the protocol data units from a network and sub-divides the protocol data units into sub-protocol data units. A plurality of base transceiver stations receive the sub-protocol data units, and wirelessly transmit the sub-protocol data units to a subscriber unit. The scheduler unit determines a schedule protocol for transmission of the sub-protocol data units by the plurality of base transceiver stations. The invention can include a base controller station that includes the scheduler unit. The invention can include a home base transceiver station that include the scheduler unit.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: August 23, 2005
    Assignee: Intel Corporation
    Inventors: David R. Dulin, Sanjay Kasturia, Partho Mishra, Arogyaswami J. Paulraj, Matthew S. Peters
  • Patent number: 6922445
    Abstract: A method and system for selective mode adaptation for transmitting data by spatial multiplexing applicable in communications systems with a transmit unit having multiple transmit antennas or multiple transmit units and a receive unit having multiple receive antennas. A channel descriptor, such as channel matrix H or a channel matrix filter , with has sub-descriptors corresponding to the transmit antennas is determined and a quality parameter, such as signal-to-interference and noise ratio, signal-to-noise ratio or power level are chosen. The quality parameter is assigned a threshold and the sub-descriptor or sub-descriptors whose quality parameters do not meet the threshold are identified and deactivated.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: July 26, 2005
    Assignee: Intel Corporation
    Inventors: Hemanth Sampath, Peroor K. Sebastian, Arogyaswami J. Paulraj
  • Patent number: 6891902
    Abstract: The invention includes an apparatus and a method for adjusting a power level of a transmission signal for minimal distortion. The method includes modulating the transmission signal. The modulated transmission signal is processed to reduce a peak to average ratio of the modulated transmission signal based upon modulation parameters of the modulated transmission signal. The power level of the modulated transmission signal is adjusted according to the peak to average ratio of the modulated transmission signal. The transmission signal is amplified and transmitted.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: May 10, 2005
    Assignee: Intel Corporation
    Inventors: Shilpa Talwar, Jose Tellado
  • Patent number: 6871341
    Abstract: Embodiments of adaptive scheduling of function calls in dynamic reconfiguration logic are generally disclosed herein. In this regard, accordance with but one example embodiment, a method of scheduling function calls in a software program in a dynamically reconfigurable computing system which includes an embedded processor and a finite number of reconfigurable logic partitions which are each programmed by a set of configuration bits dynamically loaded into the system's configuration memory is disclosed.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: March 22, 2005
    Assignee: Intel Corporation
    Inventor: Jin-sheng Shyr
  • Patent number: 6862440
    Abstract: The present invention provides a method and system for estimating common amplitude and phase errors of a multiple channel wireless system. The multiple channel wireless system includes a plurality of transmission channels formed between a plurality of transmission antennas and a plurality of receiver antennas. The method includes estimating transmission channel elements between each transmission antenna and receiver antenna pair of the multiple channel wireless system. Calibration symbols are transmitted from each transmit antenna. Signals are received that correspond to the calibration symbols having traveled through the transmission channels. Received calibration symbols are estimated based upon spatial processing of the received signals and the estimated transmission channel elements. Common amplitude and phase errors are estimated for each transmit and receive antenna pair by comparing the transmitted calibration symbols with the received calibration symbols.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: March 1, 2005
    Assignee: Intel Corporation
    Inventor: Hemanth Sampath
  • Patent number: RE39058
    Abstract: Preventing processor domination of a CPU by background transfers of teleconference object data during an electronic conference is accomplished by monitoring an external time spent by a CPU executing outside a background transfer manager. Transfers of data packets of teleconference object data are performed if the external time is larger than a minimum threshold and smaller than a maximum threshold.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 4, 2006
    Assignee: Intel Corporation
    Inventors: Loyde W. Hales, II, Tyler R. Thessin
  • Patent number: RE39540
    Abstract: A searcher for a mobile station of a cellular telephony network. Pilot signal from nearby base stations are correlated with a pseudonoise sequence inside a search window, using a bank of correlators. Each correlator is assigned a different delay, from among a sequence of delays in the window. At each delay, correlation is performed initially for a first dwell time. If the resulting correlation value exceeds a threshold, the correlation is continued for a second dwell time. Otherwise, the correlator is set to the next delay in the sequence. Only the outputs of second dwell correlations are used to identify the nearest base station. Some correlators may perform first dwell correlations at new delays in the window at the same time that other correlators are still performing second dwell correlations at old delays in the window.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: April 3, 2007
    Assignee: Intel Corporation
    Inventors: Dotan Sokolov, David Ben-Eli