Patents by Inventor John Douglas Tresidder

John Douglas Tresidder 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).

  • Data acquisition unit, system and method for geophysical data
    Patent number: 7299133
    Abstract: A data acquisition system for gathering geophysical data, a corresponding method, and a data acquisition unit for use with the system and method are disclosed. The system (10) comprises a plurality of data acquisition units (14) for gathering geophysical data, each data acquisition unit (14) being connectable to at least one sensor (15) and being arranged, during use, to gather geophysical data from the at least one sensor (15). Each data acquisition unit (14) comprises time referencing means (48) arranged to generate time reference data usable to control the time at which samples of geophysical data are taken. The system (10) further comprises means for calculating spatial derivatives between samples associated with adjacent sensors (15) connected during use to the data acquisition units (14).
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: November 20, 2007
    Assignee: WMC Resources Limited
    Inventors: Andrew Charles Duncan, Howard Golden, John Douglas Tresidder