Patents by Inventor Mohamed El-Tarkhuni

Mohamed El-Tarkhuni 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).

  • Channel estimation in CDMA communications systems using both lower power pilot channel and higher power date channel
    Patent number: 7379513
    Abstract: An iterative arrangement of channel estimator (12), a Kalman filter unit (14), and a soft demodulator (16) is provided for producing an estimate of complex gain of a CDMA communications channel carrying data and pilot channels, and demodulated data of the data channel. An initial channel estimate is produced by the estimator (12) using only the low-power pilot channel. This later is improved by the iterative process using the data channel. The complex gains is represented by a sum of sinusoidal signals with different frequencies and randomly variable amplitude and phase.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: May 27, 2008
    Inventors: Chao Wang, legal representative, Mohamed El-Tarkhuni, Zhi Ding, Yuri S. Shinakov, Alexandre M Chloma, Mikhail G. Bakouline, Vitali B. Kreindeline, Rui R. Wang