1. M. A. Aldajani and A. H. Sayed, Adaptive multi-bit delta and sigma-delta modulation, US patent 7,391,350, issued June 24, 2008.
  2. M. A. Aldajani and A. H. Sayed, Reducing power control errors in wireless communication systems , US patent 7,415,285, issued August 19, 2008.
  3. N. Yousef and A. H. Sayed, Method and apparatus for resolving multipath components for wireless location finding, US patent 7,068,742, issued June 27, 2006.
  4. A. H. Sayed and M. A. Aldajani, Adaptive sigma-delta modulation with improved dynamic range, US patent 7,073,113, issued July 4, 2006.
  5. N. Al-Dhahir and A. H. Sayed, Finite-length equalization over multi-input multi-output channels, US patent 6,870,882, issued March 22, 2005.