Patents by Inventor Ali H Sayed

Ali H Sayed 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).

  • Finite-length equalization over multi-input multi-output (MIMO) channels
    Patent number: 7796718
    Abstract: A MIMO Decision Feedback Equalizer improves operation of a receiver by canceling the spatio-temporal interference effects caused by the Multiple-Input-Multiple-Output (MIMO) channel memory with a set of Finite Impulse Response (FIR) filters in both the feed-forward and the feedback MIMO filters. The coefficients of these FIR filters can be fashioned to provide a variety of controls by the designer.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: September 14, 2010
    Inventors: Naofal Al-Dhahir, Ali H Sayed
  • Finite-length equalization over multi-input multi-output (MIMO) channels
    Patent number: 7586984
    Abstract: A Multiple-Input Multiple Output (MIMO) Decision Feedback Equalizer improves operation of a receiver by canceling the spatio-temporal interference effects caused by the MIMO channel memory with a set of (Finite Impulse Response (FIR) filters in both the feed-forward and the feedback MIMO filters. The coefficients of these FIR filters can be fashioned to provide a variety of controls by the designer.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: September 8, 2009
    Inventors: Naofal Al-Dhahir, Ali H Sayed
  • Finite-length equalization over multi-input multi-output (MIMO) channels
    Patent number: 7433402
    Abstract: A MIMO Decision Feedback Equalizer improves operation of a receiver by cancelling the spatio-temporal interference effects caused by the MIMO channel memory with a set of FIR filters in both the feedforward and the feedback MIMO filters. The coefficients of these FIR filters can be fashioned to provide a variety of controls by the designer.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: October 7, 2008
    Assignee: AT&T Corp.
    Inventors: Naofal Al-Dhahir, Ali H Sayed
  • Finite-length equalization over multi-input multi-output channels
    Patent number: 6870882
    Abstract: A MIMO Decision Feedback Equalizer improves operation of a receiver by cancelling the spatio-temporal interference effects caused by the MIMO channel memory with a set of FIR filters in both the feedforward and the feedback MIMO filters. The coefficients of these FIR filters can be fashioned to provide a variety of controls by the designer.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: March 22, 2005
    Assignee: AT&T Corp.
    Inventors: Naofal Al-Dhahir, Ali H Sayed