Patents by Inventor Alexander Haimovich

Alexander Haimovich 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: 20060250936
    Abstract: Methods and apparatus are provided for reducing clipping noise from an OFDM signal, the methods and apparatus are operable to carry out actions including: (a) transforming a received orthogonal frequency division multiplexed (OFDM) signal from a transmission channel into the frequency domain, the OFDM signal having been subject to a clipping function prior to transmission in order to reduce the peak-to-average power ratio (PAPR); (b) recovering data symbols from the transformed OFDM signal, which include clipping noise; (c) estimating the clipping noise in the frequency domain based on the data symbols; and (d) subtracting the estimated clipping noise from the transformed OFDM signal.
    Type: Application
    Filed: February 10, 2006
    Publication date: November 9, 2006
    Inventors: Hangjun Chen, Alexander Haimovich
  • Publication number: 20060233281
    Abstract: Embodiments of methods, apparatuses, devices and/or systems for transmitting information in a communication channel are disclosed.
    Type: Application
    Filed: January 19, 2006
    Publication date: October 19, 2006
    Inventors: Hangjun Chen, Alexander Haimovich
  • Publication number: 20060039272
    Abstract: Methods and computer program products for transmitting and receiving encoded signals in a wideband communication system and for generating codes for encoding the encoded signals are disclosed. The wideband communication system includes communication slots separated in frequency and/or time. The codes include components associated with each of the communication slots. A sub-carrier symbol is encoded by combining that symbol with each component of the code and modulating each symbol/component combination onto a wideband signal pulse in the communication slot corresponding to the respective component.
    Type: Application
    Filed: August 23, 2004
    Publication date: February 23, 2006
    Inventors: Divaydeep Sikri, Shaomin Mo, Alexander Gelman, Alexander Haimovich