Patents by Inventor Robert Lind Olesen

Robert Lind Olesen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070183523
    Abstract: A method and apparatus for implementing transmit and receive beamforming in an orthogonal frequency division modulation (OFDM) multiple-in multiple-out (MIMO) system. The OFDM MIMO system includes at least one transmitter and at least one receiver. A receive information vector is determined based upon channel estimates performed at the transmitter and the receiver.
    Type: Application
    Filed: December 28, 2006
    Publication date: August 9, 2007
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, I-Tai Lu, Robert Lind Olesen, Hui-Yuan Teng
  • Patent number: 7197289
    Abstract: A system and method for automatic gain control for a wireless transmit and receive unit in a time-slotted communications system includes initializing an automatic gain control loop, sampling a received signal, and estimating the power of the received signal. The estimated power of the received signal is compared with a reference power level and an error signal is generated based upon the difference between the estimated power and the reference power level. The error signals generated by a plurality of received signals are accumulated in an accumulator, and the value of the accumulator is looked up in a table to locate a control word for an attenuator. The control word is then passed to the attenuator to adjust the gain.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: March 27, 2007
    Assignee: InterDigital Technology Corporation
    Inventors: Eldad Zeira, Mihaela Beluri, Robert Lind Olesen, Rui Yang
  • Patent number: 7164740
    Abstract: A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: January 16, 2007
    Assignee: InterDigital Technology Corporation
    Inventors: Robert Lind Olesen, Alexander Reznik, Philip J. Pietraski, Rui Yang
  • Patent number: 7120201
    Abstract: The present invention is related to a method and system for optimization of channel estimation and synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) Multiple-Input Multiple-Output (MIMO) wireless communication system. In accordance with the present invention, all of the training sequences are simply constructed based on a basic code by cyclically shifting the basic code. The training sequences are transmitted from different antennas in parallel without performing inverse fast Fourier transform. As a result, there is no peak-to-average ratio problem. Channel estimation is performed in each receiver based on the samples before fast Fourier transform and the maximum-likelihood estimate of channel response in time domain is then mapped into the frequency domain. The channel estimation is not only very simple in implementation, but also very efficient in computation.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: October 10, 2006
    Assignee: InterDigital Technology Corporation
    Inventors: Yuejin Huang, Robert Lind Olesen, Chang-Soo Koo
  • Patent number: 7032160
    Abstract: A system, components and methods provide FEC decoding in a wireless communication system in which signal to noise ratio estimation is used for scaling information captured by a demodulator in processing received wireless communication signals. A preferred wireless transmit receive unit (WTRU) has a channel rate estimation device configured to process the received communication signals for the particular communication channel and to produce channel change rate estimates. A signal to noise ratio (SNR) estimation device of the WTRU is configured to produce SNR estimates based on observation windows of a calculated number of samples of the received signal where the number of samples used for each observation window is calculated a function of the channel change rate estimates produce by the channel rate estimation device.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: April 18, 2006
    Assignee: InterDigital Technology Corporation
    Inventors: Gregory S. Sternberg, Rui Yang, Philip J. Pietraski, Robert Lind Olesen
  • Publication number: 20060030364
    Abstract: A technique which improves SINR in a communication system utilizing MIMO antennas is described. Transmitter and receiver components use fixed transmit and receive beamforming matrices and variable transmit and receive beamforming vectors. A method of channel conditioning using an iterative closed loop process is also described.
    Type: Application
    Filed: June 27, 2005
    Publication date: February 9, 2006
    Applicant: InterDigital Technology Corporation
    Inventors: Robert Lind Olesen, Jaeyoung Kwak, Aykut Bultan
  • Patent number: 6931584
    Abstract: A system, components and methods provide FEC decoding in a wireless communication system in which signal to noise ratio estimation is used for scaling information captured by a demodulator in processing received wireless communication signals. A preferred wireless transmit receive unit (WTRU) has a channel rate estimation device configured to process the received communication signals for the particular communication channel and to produce channel change rate estimates. A signal to noise ratio (SNR) estimation device of the WTRU is configured to produce SNR estimates based on observation windows of a calculated number of samples of the received signal where the number of samples used for each observation window is calculated a function of the channel change rate estimates produce by the channel rate estimation device.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: August 16, 2005
    Assignee: InterDigital Technology Corporation
    Inventors: Gregory S. Sternberg, Rui Yang, Philip J. Pietraski, Robert Lind Olesen
  • Publication number: 20040176054
    Abstract: A system and method for automatic gain control for a wireless transmit and receive unit in a time-slotted communications system includes initializing an automatic gain control loop, sampling a received signal, and estimating the power of the received signal. The estimated power of the received signal is compared with a reference power level and an error signal is generated based upon the difference between the estimated power and the reference power level. The error signals generated by a plurality of received signals are accumulated in an accumulator, and the value of the accumulator is looked up in a table to locate a control word for an attenuator. The control word is then passed to the attenuator to adjust the gain.
    Type: Application
    Filed: July 3, 2003
    Publication date: September 9, 2004
    Applicant: InterDigital Technology Corporation
    Inventors: Eldad Zeira, Mihaela Beluri, Robert Lind Olesen, Rui Yang
  • Publication number: 20040098652
    Abstract: A system, components and methods provide FEC decoding in a wireless communication system in which signal to noise ratio estimation is used for scaling information captured by a demodulator in processing received wireless communication signals. A preferred wireless transmit receive unit (WTRU) has a channel rate estimation device configured to process the received communication signals for the particular communication channel and to produce channel change rate estimates. A signal to noise ratio (SNR) estimation device of the WTRU is configured to produce SNR estimates based on observation windows of a calculated number of samples of the received signal where the number of samples used for each observation window is calculated a function of the channel change rate estimates produce by the channel rate estimation device.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 20, 2004
    Applicant: InterDigital Technology Corporation
    Inventors: Gregory S. Sternberg, Rui Yang, Philip J. Pietraski, Robert Lind Olesen