Patents by Inventor Sebastian Randel

Sebastian Randel 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).

  • Patent number: 9768920
    Abstract: A method for transferring control signals and data signals, particularly in a motor vehicle. The control signals and the data signals are transferred by a physical medium. The control signals or the data signals are modulated prior to transferring. The modulated signals and the non-modulated signals are sent by the physical medium.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: September 19, 2017
    Assignee: Continental Automotive GmbH
    Inventors: Klaus Gröhlich, Ronald Hain, Sebastian Randel, Götz Roderer
  • Patent number: 9184836
    Abstract: A data transmission system has a light-emitting transmitter, a light-receiving receiver and a data transmission channel based on incoherent light. A pre-equalization device connected upstream of the transmitter is provided for the purpose of pre-equalizing a data signal which is to be transmitted from the transmitter to the receiver via the data transmission channel. The data transmission channel has constant transmission conditions within prescribed limits. The data signal to be transmitted is transmitted using a prescribed maximum bandwidth of the transmitter.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: November 10, 2015
    Assignee: SIEMENS AKTIENGESELLSCAFT
    Inventors: Florian Breyer, Sebastian Randel, Joachim Walewski
  • Patent number: 9042721
    Abstract: Disclosed herein are various embodiments of a time-domain reflectometer having a transmitter configured to apply, to a system under test (SUT), an intensity-modulated probe signal generated based on a periodic pseudo-random bit sequence. The reflectometer further has a receiver configured to receive, back from the SUT, a reflected signal corresponding to the probe signal. The receiver converts the received reflected signal into a binary bit sequence using a relatively simple slicer circuit, and without the use of complex analog circuits and/or multi-bit analog-to-digital converters. The binary bit sequence is then compared with the original pseudo-random bit sequence to obtain a measure of the impulse response of the SUT. In some embodiments, the reflectometer has a controllable noise generator that can be used, e.g., to optimize the obtained measure for the detection of multiple SUT defects having significantly differing reflection characteristics.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: May 26, 2015
    Assignee: Alcatel Lucent
    Inventors: Sebastian Randel, Jeffrey H. Sinsky
  • Patent number: 8811826
    Abstract: Lamps having light emitting diodes configured for data transmission require the high-frequency circuit of higher power. In order to simplify the required electronics, the light emitting diodes are divided into groups and the groups are modulated differently. Due to the multilevel modulation, the symbol rate can be reduced with the data rate remaining the same, thus reducing the switching rate and the circuitry complexity.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: August 19, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Oscar Cristobal Gaete Jamett, Sebastian Randel, Harald Rohde
  • Publication number: 20140029932
    Abstract: Disclosed herein are various embodiments of a time-domain reflectometer having a transmitter configured to apply, to a system under test (SUT), an intensity-modulated probe signal generated based on a periodic pseudo-random bit sequence. The reflectometer further has a receiver configured to receive, back from the SUT, a reflected signal corresponding to the probe signal. The receiver converts the received reflected signal into a binary bit sequence using a relatively simple slicer circuit, and without the use of complex analog circuits and/or multi-bit analog-to-digital converters. The binary bit sequence is then compared with the original pseudo-random bit sequence to obtain a measure of the impulse response of the SUT. In some embodiments, the reflectometer has a controllable noise generator that can be used, e.g., to optimize the obtained measure for the detection of multiple SUT defects having significantly differing reflection characteristics.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 30, 2014
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Sebastian Randel, Jeffrey H. Sinsky
  • Publication number: 20120269208
    Abstract: A method for transferring control signals and data signals, particularly in a motor vehicle. The control signals and the data signals are transferred by a physical medium. The control signals or the data signals are modulated prior to transferring. The modulated signals and the non-modulated signals are sent by the physical medium.
    Type: Application
    Filed: July 9, 2010
    Publication date: October 25, 2012
    Inventors: Klaus Gröhlich, Ronald Hain, Sebastian Randel, Götz Roderer
  • Publication number: 20100254714
    Abstract: Lamps having light emitting diodes configured for data transmission require the high-frequency circuit of higher power. In order to simplify the required electronics, the light emitting diodes are divided into groups and the groups are modulated differently. Due to the multilevel modulation, the symbol rate can be reduced with the data rate remaining the same, thus reducing the switching rate and the circuitry complexity.
    Type: Application
    Filed: September 2, 2008
    Publication date: October 7, 2010
    Inventors: Oscar Cristobal Gaete Jamett, Sebastian Randel, Harald Rohde
  • Publication number: 20100142965
    Abstract: A data transmission system has a light-emitting transmitter, a light-receiving receiver and a data transmission channel based on incoherent light. A pre-equalization device connected upstream of the transmitter is provided for the purpose of pre-equalizing a data signal which is to be transmitted from the transmitter to the receiver via the data transmission channel. The data transmission channel has constant transmission conditions within prescribed limits. The data signal to be transmitted is transmitted using a prescribed maximum bandwidth of the transmitter.
    Type: Application
    Filed: July 10, 2008
    Publication date: June 10, 2010
    Applicant: Siemens Aktiengesellschaft
    Inventors: Florian Breyer, Sebastian Randel, Joachim Walewski
  • Publication number: 20100054274
    Abstract: A method for clock synchronization in a communication network, in particular one based on packet switched data transmission, is provided. A first clock signal from a first network element is used as a reference signal for synchronization of a respective second clock signal from one or more second network elements. The first clock signal is transmitted at a transmission frequency intended exclusively for the clock signal or at a transmission frequency band intended exclusively for the first clock signal to the one or the more second network elements. The first clock signal is processed in the respective second network element in order to adjust the second clock signal such that the second clock signal matches the first clock signal.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 4, 2010
    Inventors: Florian Breyer, Sebastian Randel, Johannes Riedl