Patents Assigned to Vivax-Metrotech
  • SIGNAL SELECT IN UNDERGROUND LINE LOCATION
    Publication number: 20130287125
    Abstract: A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 31, 2013
    Applicant: Vivax-Metrotech
    Inventors: Stephen John Petherick, George Mainescu, Ion Dracea, Razvan Gabriel Stefanoiu, John Mark Royle
  • TICKET AND DATA MANAGEMENT
    Publication number: 20120158901
    Abstract: A locator including a communication interface adapted to communicate ticket data with a database, a memory adapted to store the ticket data received from the database, a first transmitter adapted to controllably radiate at least one radiation frequency, a receiver adapted to generate data corresponding to the transmitted radiation frequency, and a processor adapted to reconfigure ticket data based on the generated data, wherein the communication interface communicates the reconfigured ticket data to a network.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 21, 2012
    Applicant: Vivax-Metrotech
    Inventors: James W. WAITE, Yupeng Zhang