Patents Represented by Attorney, Agent or Law Firm Gregory A. Core
  • Patent number: 6573762
    Abstract: A very low power analog pulse processing system implemented as an ASIC useful for processing signals from radiation detectors, among other things. The system incorporates the functions of a charge sensitive amplifier, a shaping amplifier, a peak sample and hold circuit, and, optionally, an analog to digital converter and associated drivers.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: June 3, 2003
    Assignee: Sandia Corporation
    Inventors: Kurt O. Wessendorf, Dale A. Kemper
  • Patent number: 6304042
    Abstract: A command triggered plasma opening switch assembly using an amplification stage. The assembly surrounds a coaxial transmission line and has a main plasma opening switch (POS) close to the load and a trigger POS upstream from the main POS. The trigger POS establishes two different current pathways through the assembly depended on whether it has received a trigger current pulse. The initial pathway has both POS's with plasma between their anodes and cathodes to form a short across the transmission line and isolating the load. The final current pathway is formed when the trigger POS receives a trigger current pulse which energizes its fast coil to push the conductive plasma out from between its anode and cathode, allowing the main transmission line current to pass to the fast coil of the main POS, thus pushing its plasma out the way so as to establish a direct current pathway to the load.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: October 16, 2001
    Assignee: Sandia Corporation
    Inventors: Mark E. Savage, Clifford W. Mendel, Jr.