Patents by Inventor Kyung Y. Min

Kyung Y. Min 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).

  • Smart antenna with no phase calibration for CDMA reverse link
    Patent number: 6434375
    Abstract: The present invention describes an inexpensive as well as efficient smart antenna processor for a code division multiple access (CDMA) wireless communications system, such as a 3rd generation (3G) CDMA2000 or W-CDMA system. Separate channel estimation is not required in the present invention, in contrast to a CDMA system with a conventional smart antenna. In addition, the phase distortions due to the different radio frequency (RF) mixers can be automatically compensated in the present invention. Thus, separate phase calibration is not necessary for a smart antenna processor according to the present invention, if the reverse link demodulation is concerned. Furthermore, bit error rate (BER) performance of a CDMA system with the adaptive algorithm in the present invention can be smaller than that of a conventional algorithm, for fading and additive white Gaussian noise (AWGN) environments.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: August 13, 2002
    Assignee: NeoReach, Inc.
    Inventors: Tatcha Chulajata, Hyuck M. Kwon, Kyung Y. Min