Patents by Inventor Pete Hulbert

Pete Hulbert 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: 9501085
    Abstract: A method and apparatus for generating a desired pulse waveform including: dividing the desired pulse waveform into a plurality of line segments; assigning to each line segment at least a segment identification, a segment initial value, and a segment duration to form a waveform description; providing the waveform description to a pulse generator. The pulse generator is operable to produce a waveform corresponding to the waveform description and to output the produced waveform.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: November 22, 2016
    Assignee: KEITHLEY INSTRUMENTS, LLC
    Inventors: Pete Hulbert, Michael Rayman, Trish Gottlob, Rajat Mehta, John Lilie
  • Patent number: 8400179
    Abstract: A method for operating a measurement system having an interconnect between the measurement system and a device under test (DUT), the interconnect exhibiting voltage drops during measurements of the DUT, includes applying a test signal to the DUT through the interconnect, the test signal having a system value at the measurement system; measuring a resulting DUT value at the DUT; adjusting the system value according to the resulting DUT value to produce successive desired DUT values at the DUT; and using the successive DUT values to measure an electrical characteristic of the DUT.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: March 19, 2013
    Assignee: Keithley Instruments, Inc.
    Inventors: Pete Hulbert, Gregory Sobolewski
  • Patent number: 7633308
    Abstract: A system for making HF and DC measurements on a DUT includes a HF unit having a HF connection terminal that is switchable to a connected or disconnected state; a DC unit having a DC connection terminal that is switchable to a connected or disconnected state; and a common connection between the connection terminals adapted to be connected to the DUT. The DC connection terminal has a transmission line characteristic that is impedance-matched to minimize reflections when the HF connection terminal is in the connected state and the DC connection terminal is in the disconnected state.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: December 15, 2009
    Assignee: Keithley Instruments, Inc.
    Inventors: Gregory Sobolewski, Pete Hulbert, Dave Rubin
  • Patent number: 7518378
    Abstract: The errors related to the resistance of test conductors and sense/load resistances for a pulse I-V measurement system are determined by making open circuit and through circuit measurements using a combination of DC and pulse instrument measurements.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: April 14, 2009
    Assignee: Keithley Instruments, Inc.
    Inventors: Rajat Mehta, Pete Hulbert
  • Publication number: 20080191709
    Abstract: The errors related to the resistance of test conductors and sense/load resistances for a pulse I-V measurement system are determined by making open circuit and through circuit measurements using a combination of DC and pulse instrument measurements.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 14, 2008
    Inventors: Rajat Mehta, Pete Hulbert
  • Publication number: 20080186065
    Abstract: A method and apparatus for generating a desired pulse waveform including: dividing the desired pulse waveform into a plurality of line segments; assigning to each line segment at least a segment identification, a segment initial value, and a segment duration to form a waveform description; providing the waveform description to a pulse generator. The pulse generator is operable to produce a waveform corresponding to the waveform description and to output the produced waveform.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 7, 2008
    Inventors: Pete Hulbert, Michael Rayman, Trish Gottlob, Rajat Mehta, John Lilie