Patents by Inventor Rui R. Wang, deceased

Rui R. Wang, deceased 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).

  • Multi-user detection in CDMA communications system
    Patent number: 7327713
    Abstract: For each user in a multi-user detection arrangement in a CDMA communications system, a detector (80) provides a limiting function (88) responsive to a combined signal to produce a detection signal, having any of at least three possible values, for supply to a signal regenerator, regenerated signals being subtracted from a received signal in successive detection iterations of the multi-user detection arrangement. A code correlated signal is supplied via an inverse hyperbolic tangent function (84), or is multiplied by a multiplier inverse to an iteration index, to produce a derived signal. The derived signal is added (86) to a representation of a detection result stored from a previous iteration to produce the combined signal. The limiting function can comprise a hyperbolic tangent function.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: February 5, 2008
    Inventors: Chao Wang, legal representative, Wen Tong, Philip Thomas, Yuri S. Shinakov, Alexandere M. Chloma, Mikhail G. Bakouline, Vitali B. Kreindeline, Rui R. Wang, deceased