Patents by Inventor Alexander Flaksman

Alexander Flaksman 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).

  • Pre-coding method for spatial multiplexing in multiple input and output system
    Patent number: 8842640
    Abstract: The present invention relates to a pre-coding method for spatial multiplexing, comprising the steps of: performing a beam search for beam forming with a receiver device equipped with multiple antennas to perform pre-coding for spatial multiplexing in a transmitter device equipped with multiple antennas; transmitting a first packet including at least one or more training sequences to the receiver device after completion of said beam search; receiving, from the receiver device, a second packet including feedback information for pre-coding, determined in the receiver device by using the training sequences; and performing pre-coding for spatial multiplexing, onto the data stream to be transmitted to the receiver device, by using the pre-coding matrix calculated on the basis of the feedback information.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: September 23, 2014
    Assignee: LG Electronics Inc.
    Inventors: Beom Jin Jeon, Joong Heon Kim, Alexey Rubtsov, Alexander Flaksman, Sergey Tiraspolsky
  • Method for transmitting data in wireless communication system
    Patent number: 8351364
    Abstract: A method for transmitting data in a wireless communication system provides transmitting a cluster allocation message, which informs at least one user equipment that the user equipment belongs to a cluster, to the at least one user equipment, and receiving a response to the cluster allocation message from user equipments belonging to the cluster. Small envelope correlation coefficient can be obtained without increasing the size of a user equipment.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Bin Chul Ihm, Hyun Soo Ko, Sung Ho Park, Sergey Sergeyev, Victor Ermolaev, Alexander Flaksman
  • PRE-CODING METHOD FOR SPATIAL MULTIPLEXING IN MULTIPLE INPUT AND OUTPUT SYSTEM
    Publication number: 20110280188
    Abstract: The present invention relates to a pre-coding method for spatial multiplexing, comprising the steps of: performing a beam search for beam forming with a receiver device equipped with multiple antennas to perform pre-coding for spatial multiplexing in a transmitter device equipped with multiple antennas; transmitting a first packet including at least one or more training sequences to the receiver device after completion of said beam search; receiving, from the receiver device, a second packet including feedback information for pre-coding, determined in the receiver device by using the training sequences; and performing pre-coding for spatial multiplexing, onto the data stream to be transmitted to the receiver device, by using the pre-coding matrix calculated on the basis of the feedback information.
    Type: Application
    Filed: November 2, 2009
    Publication date: November 17, 2011
    Applicant: LG ELECTRONICS INC.
    Inventors: Beom Jin Jeon, Joong Heon Kim, Alexey Rubtsov, Alexander Flaksman, Sergey Tiraspolsky
  • Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback
    Patent number: 7570696
    Abstract: A multicarrier receiver generates a quantized transmit beamformer matrix ({tilde over (V)}) for each subcarrier of a multicarrier communication channel for use by a multicarrier transmitting station. The multicarrier receiver applies a corrected receiver beamformer matrix (?H) to received subcarriers signals generated by signals received from the transmitting station.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: August 4, 2009
    Assignee: Intel Corporation
    Inventors: Alexander A. Maltsev, Ali S Sadri, Sergey A. Tiraspolsky, Alexander Flaksman, Alexei V Davydov
  • Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback
    Publication number: 20050287978
    Abstract: A multicarrier receiver generates a quantized transmit beamformer matrix ({tilde over (V)}) for each subcarrier of a multicarrier communication channel for use by a multicarrier transmitting station. The multicarrier receiver applies a corrected receiver beamformer matrix (?H) to received subcarriers signals generated by signals received from the transmitting station.
    Type: Application
    Filed: June 25, 2004
    Publication date: December 29, 2005
    Inventors: Alexander Maltsev, Ali Sadri, Sergey Tiraspolsky, Alexander Flaksman, Alexei Davydov