Patents by Inventor Hardy Scheidig

Hardy Scheidig 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).

  • Method and device for synchronizing to a CDMA-signal that contains a pilot sequence
    Patent number: 7286519
    Abstract: A method for synchronizing to a CDMA-signal that contains a pilot sequence, overlaid with data sequences, comprises the following process steps: correlating the total signal consisting of the transmitted pilot sequence and transmitted data sequences with a reference pilot sequence; subtracting the correlation result time-delayed by one or more symbol durations of the pilot sequence from the current correlation result in order to suppress the pilot sequence and subsequent incoherent averaging, and determining the minimum.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: October 23, 2007
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Bernd Eppinger, Jens Kuehne, Hardy Scheidig
  • Method and device for synchronising to a CDMA-signal that contains a pilot sequence
    Publication number: 20040136353
    Abstract: A method for synchronising to a CDMA-signal that contains a pilot sequence, overlaid with data sequences, comprises the following process steps: correlating the total signal consisting of the transmitted pilot sequence and transmitted data sequences with a reference pilot sequence; subtracting the correlation result time-delayed by one or more symbol durations of the pilot sequence from the current correlation result in order to suppress the pilot sequence and subsequent incoherent averaging, and determining the minimum.
    Type: Application
    Filed: July 22, 2003
    Publication date: July 15, 2004
    Inventors: Bernd Eppinger, Jens Kuehne, Hardy Scheidig
  • Method and arrangement for reducing the linearity influences in high-frequency circuits, particularly in A/D converters
    Patent number: 6124812
    Abstract: To reduce linearity error influences in a HF circuit, particularly in an A/D converter, an input signal of the circuit is multiplied by a first auxiliary signal, and an output signal of the circuit is multiplied by a second auxiliary signal, the first and second auxiliary signals being selected such that a harmonic spectrum of the circuit is broadened.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: September 26, 2000
    Assignee: Rhode & Schwarz GmbH & Co. KG
    Inventor: Hardy Scheidig
  • Analog/digital converter with small crest factor dither signal superposed at an input side
    Patent number: 6064328
    Abstract: In an analog-digital converter, a sine signal angle-modulated with noise or pseudonoise is used as a dither signal. The dither signal is superposed on an analog useful signal that is to be digitized. This signal is then digitized. The dither signal is then filtered out to produce the digitized useful signal.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: May 16, 2000
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Hardy Scheidig, Manfred Mueller, Roland Minihold