Patents by Inventor Dirk Walvis

Dirk Walvis 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: 8116208
    Abstract: A method for contemporaneously testing multiple digital data packet transceivers using predefined UL test sequences of synchronized data packets by pre-configuring test measurements, and multiplexing and interleaving portions of the data packets from the devices under test (DUTs).
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: February 14, 2012
    Assignee: Litepoint Corporation
    Inventors: Wassim El-Hassan, Christian Volf Olgaard, Dirk Walvis
  • Publication number: 20110090799
    Abstract: A method for contemporaneously testing multiple digital data packet transceivers using predefined UL test sequences of synchronized data packets by pre-configuring test measurements, and multiplexing and interleaving portions of the data packets from the devices under test (DUTs).
    Type: Application
    Filed: January 21, 2010
    Publication date: April 21, 2011
    Applicant: LitePoint Corporation
    Inventors: Wassim El-Hassan, Christian Volf Olgaard, Dirk Walvis
  • Patent number: 7822130
    Abstract: Apparatus and method for testing signals from two or more OFDM transmitters simultaneously with a single VSA.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: October 26, 2010
    Assignee: LitePoint Corporation
    Inventors: Dirk Walvis, Stephen James Bennett, Vakis Papaparaskeva, Christian Volf Olgaard, Roman Schilter
  • Patent number: 7706250
    Abstract: A signal analyzer and method for measuring signal compression levels of one or more individual orthogonal frequency division multiplexed (OFDM) signals among a plurality of OFDM signals within a composite signal.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: April 27, 2010
    Assignee: LitePoint Corp.
    Inventors: Christian Volf Olgaard, Stephen James Bennett, Vakis Papaparaskeva, Dirk Walvis
  • Patent number: 7369579
    Abstract: Power line communication (“PLC”) signals are transmitted between a head-end PLC transceiver coupled to multiple remote PLC transceivers over a electric power and communications distribution network in accordance with a timing controlled PLC data frame which determines how much bandwidth is allocated to downstream transmission from the head-end to the remotes and to upstream transmissions from one or more of the remotes to the head-end. The configuration of the timing controlled data frame can be dynamically modified to achieve higher bandwidth for the downstream traffic and to satisfy changing bandwidth needs of each remote.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: May 6, 2008
    Inventors: Oleg Logvinov, Dirk Walvis, Lawrence F. Durfee
  • Publication number: 20080002655
    Abstract: Data throughput rate in a power line communications (“PLC”) system is controlled by generating PLC carrier signals in accordance with a PLC signal frame structure containing payload symbols where the payload symbol length is selected based on at least one of a PLC system channel quality and node configuration data. The selected payload symbol length determines the processing operations that a source PLC transceiver performs for generating PLC signals or that a destination PLC transceiver performs for extracting information content from received PLC signals. The payload symbol lengths can be selected to maximize the data throughput rate while maintaining compatibility with prior art PLC system protocols and standards that require a PLC signal frame structure and its payload portion to have fixed, predetermined lengths.
    Type: Application
    Filed: January 10, 2007
    Publication date: January 3, 2008
    Applicant: ARKADOS, Inc.
    Inventors: Oleg Logvinov, Dirk Walvis, Brion Ebert, David Lawrence
  • Publication number: 20070070691
    Abstract: Apparatus and method for testing signals from two or more OFDM transmitters simultaneously with a single VSA.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 29, 2007
    Applicant: LITEPOINT CORPORATION
    Inventors: Dirk Walvis, Stephen Bennett, Vakis Papaparaskeva, Christian Olgaard, Roman Schilter
  • Publication number: 20070070881
    Abstract: A signal analyzer and method for measuring signal compression levels of one or more individual orthogonal frequency division multiplexed (OFDM) signals among a plurality of OFDM signals within a composite signal.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 29, 2007
    Applicant: LitePoint Corporation
    Inventors: Christian Olgaard, Stephen Bennett, Vakis Papaparaskeva, Dirk Walvis
  • Patent number: 7193506
    Abstract: Data throughput rate in a power line communications (“PLC”) system is controlled by generating PLC carrier signals in accordance with a PLC signal frame structure containing payload symbols where the payload symbol length is selected based on at least one of a PLC system channel quality and node configuration data. The selected payload symbol length determines the processing operations that a source PLC transceiver performs for generating PLC signals or that a destination PLC transceiver performs for extracting information content from received PLC signals. The payload symbol lengths can be selected to maximize the data throughput rate while maintaining compatibility with prior art PLC system protocols and standards that require a PLC signal frame structure and its payload portion to have fixed, predetermined lengths.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: March 20, 2007
    Assignee: Arkados, Inc.
    Inventors: Oleg Logvinov, Dirk Walvis, Brion Ebert, David Lawrence
  • Patent number: 6917888
    Abstract: Fault detection and power network quality monitoring are performed for a power line network using power line communications (“PLC”) signal transceiving and data processing capabilities. Power line signals are continuously received and processed to obtain signal data representative of power line network operating conditions that are expressed in the received power line signals. The harmonic content and noise signature of the signal data are evaluated with reference to known fault signature data and power line network topology properties for detecting and identifying the location of an existing or anticipated fault in the power line network and assessing power transmission quality of the network.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: July 12, 2005
    Assignee: Arkados, Inc.
    Inventors: Oleg Logvinov, Lawrence F. Durfee, Dirk Walvis
  • Publication number: 20040160990
    Abstract: Power line communication (“PLC”) signals are transmitted between a head-end PLC transceiver coupled to multiple remote PLC transceivers over a electric power and communications distribution network in accordance with a timing controlled PLC data frame which determines how much bandwidth is allocated to downstream transmission from the head-end to the remotes and to upstream transmissions from one or more of the remotes to the head-end. The configuration of the timing controlled data frame can be dynamically modified to achieve higher bandwidth for the downstream traffic and to satisfy changing bandwidth needs of each remote.
    Type: Application
    Filed: September 25, 2003
    Publication date: August 19, 2004
    Inventors: Oleg Logvinov, Dirk Walvis, Lawrence F. Durfee