Patents by Inventor Jaehyeong Kim

Jaehyeong Kim 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).

  • Truncated metric for NTSC interference rejection in the ATSC-HDTV trellis decoder
    Patent number: 6449002
    Abstract: In a system for receiving a signal containing digital data representing HDTV image information in the form of multilevel symbols formatted into groups of successive fields, each field comprising a field segment, a plurality of data segments, and associated sync components, the received signal is demodulated to produce a demodulated signal. The demodulated signal is comb-filtered to reject NTSC co-channel interference to produce a filtered signal. The filtered signal is trellis decoded with a trellis decoder employing a truncated non-Euclidean metric.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: September 10, 2002
    Assignee: Thomson Licensing S.A.
    Inventors: Ivonete Markman, Jaehyeong Kim, Vasudevan Parthasarathy
  • Methods and apparatus for CDMA rate detection
    Patent number: 6134278
    Abstract: Techniques for more accurately detecting the data rate of a frame of data in a cellular telephone system are described. Data is preferably received at one of four rates: full, half, quarter and eighth. A correlation is performed between the incoming soft data and the data generated by re-encoding and re-repeating the data. Variations on the approach make it readily possible to accurately perform rateset 1 or rateset 2 rate detection.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: October 17, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Farrokh Abrishamkar, Jaehyeong Kim, Zulfiquar Sayeed