Patents by Inventor Georg Roell

Georg Roell 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).

  • Adjustment for equalization parameters in receivers
    Patent number: 7184475
    Abstract: A method of adjusting equalization parameters in a receiver wherein a bit error rate (BER) in a data stream is measured from the number of corrected bits in data blocks which have an information section and an error correction section. A predetermined equalization parameter is changed, and the bit error rate (BER) after change is again measured to find out how to change the predetermined equalization parameter until an optimum is reached. When adjusting the threshold value of the receiver, the history of occurring bits preceding the actual sampled bit is taken into consideration in that the amount and direction of adjustment is derived from a look-up table.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: February 27, 2007
    Assignee: Lucent Technologies Inc.
    Inventors: Ralf Dohmen, Christoph Schulien, Herbert Haunstein, Achim Herzberger, Georg Roell, Konrad Sticht
  • Adjustment of equalization parameters in receivers
    Publication number: 20020181573
    Abstract: A method of adjusting equalization parameters in a receiver wherein a bit error rate (BER) in a data stream is measured from the number of corrected bits in data blocks which have an information section and an error correction section. A predetermined equalization parameter is changed, and the bit error rate (BER) after change is again measured to find out how to change the predetermined equalization parameter until an optimum is reached. When adjusting the threshold value of the receiver, the history of occurring bits preceding the actual sampled bit is taken into consideration in that the amount and direction of adjustment is derived from a look-up table.
    Type: Application
    Filed: January 22, 2002
    Publication date: December 5, 2002
    Inventors: Ralf Dohmen, Christoph Schulien, Herbert Haunstein, Achim Herzberger, Georg Roell, Konrad Sticht