Patents by Inventor Curtis Tesdahl

Curtis Tesdahl 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: 7492170
    Abstract: Disclosed is a novel electrical probe that stores probe-specific information. A probe implemented in accordance with the invention includes a processor, memory, and a communications interface. Probe-specific information such as a probe identifier and/or calibration parameters that affect the true value of a measurement are stored in the probe memory. The probe-specific information may be retrieved by the processor from the probe memory via the communications interface.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: February 17, 2009
    Assignee: Agilent Technologies, Inc.
    Inventors: David T. Crook, Curtis A Tesdahl
  • Publication number: 20060279295
    Abstract: Disclosed is a novel electrical probe that stores probe-specific information. A probe implemented in accordance with the invention includes a processor, memory, and a communications interface. Probe-specific information such as a probe identifier and/or calibration parameters that affect the true value of a measurement are stored in the probe memory. The probe-specific information may be retrieved by the processor from the probe memory via the communications interface.
    Type: Application
    Filed: August 3, 2006
    Publication date: December 14, 2006
    Inventors: David Crook, Curtis Tesdahl
  • Patent number: 7132834
    Abstract: Disclosed is a novel method and apparatus for acquiring multiple capacitively sensed measurements from a circuit under test. Multiple digital sources are respectively connected to stimulate multiple respective first ends of multiple respective nets of interest. Respective second ends of the multiple respective nets of interest are capacitively sensed. The respective capacitively coupled signals are digitally sampled and shift correlated with respective expected digital signatures. If a high level of correlation is found for a given net, the net is electrically intact; otherwise, the net is characterized by either an open or some other fault that prevents it from meeting specification.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: November 7, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Curtis A. Tesdahl, Ronald J. Peiffer
  • Patent number: 7109728
    Abstract: Disclosed is a novel electrical probe that stores probe-specific information. A probe implemented in accordance with the invention includes a processor, memory, and a communications interface. Probe-specific information such as a probe identifier and/or calibration parameters that affect the true value of a measurement are stored in the probe memory. The probe-specific information may be retrieved by the processor from the probe memory via the communications interface.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: September 19, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: David T Crook, Curtis A Tesdahl
  • Patent number: 7061250
    Abstract: Disclosed is a novel method and apparatus for acquiring multiple capacitively sensed measurements from a circuit under test. Multiple digital sources are respectively connected to stimulate multiple respective first ends of multiple respective nets of interest. Respective second ends of the multiple respective nets of interest are capacitively sensed. The respective capacitively coupled signals are digitally sampled and shift correlated with respective expected digital signatures. If a high level of correlation is found for a given net, the net is electrically intact; otherwise, the net is characterized by either an open or some other fault that prevents it from meeting specification.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 13, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Curtis A. Tesdahl, Ronald J. Peiffer
  • Publication number: 20060076960
    Abstract: Disclosed is a novel method and apparatus for acquiring multiple capacitively sensed measurements from a circuit under test. Multiple digital sources are respectively connected to stimulate multiple respective first ends of multiple respective nets of interest. Respective second ends of the multiple respective nets of interest are capacitively sensed. The respective capacitively coupled signals are digitally sampled and shift correlated with respective expected digital signatures. If a high level of correlation is found for a given net, the net is electrically intact; otherwise, the net is characterized by either an open or some other fault that prevents it from meeting specification.
    Type: Application
    Filed: November 28, 2005
    Publication date: April 13, 2006
    Inventors: Curtis Tesdahl, Ronald Peiffer
  • Publication number: 20060076959
    Abstract: Disclosed is a novel method and apparatus for acquiring multiple capacitively sensed measurements from a circuit under test. Multiple digital sources are respectively connected to stimulate multiple respective first ends of multiple respective nets of interest. Respective second ends of the multiple respective nets of interest are capacitively sensed. The respective capacitively coupled signals are digitally sampled and shift correlated with respective expected digital signatures. If a high level of correlation is found for a given net, the net is electrically intact; otherwise, the net is characterized by either an open or some other fault that prevents it from meeting specification.
    Type: Application
    Filed: November 28, 2005
    Publication date: April 13, 2006
    Inventors: Curtis Tesdahl, Ronald Peiffer
  • Patent number: 6998849
    Abstract: Disclosed is a novel method and apparatus for acquiring multiple capacitively sensed measurements from a circuit under test. Multiple digital sources are respectively connected to stimulate multiple respective first ends of multiple respective nets of interest. Respective second ends of the multiple respective nets of interest are capacitively sensed. The respective capacitively coupled signals are digitally sampled and shift correlated with respective expected digital signatures. If a high level of correlation is found for a given net, the net is electrically intact; otherwise, the net is characterized by either an open or some other fault that prevents it from meeting specification.
    Type: Grant
    Filed: September 27, 2003
    Date of Patent: February 14, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Curtis A. Tesdahl, Ronald J. Peiffer
  • Patent number: 6930494
    Abstract: A novel capacitive sensor assembly that utilizes a flex circuit for amplification of capacitively sensed signals and for separating the power, ground, and measurement signals is presented. The use of a flex circuit in the capacitive probe assembly allows implementation of multiple capacitive sensors for respectively capacitively coupling multiple signals from respective multiple test points of a circuit under test. The invention integrates the sensor plate, amplifier, and return wiring for each capacitive sensor all onto one flex circuit.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 16, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: Curtis A. Tesdahl, David T. Crook
  • Publication number: 20050068051
    Abstract: Disclosed is a novel method and apparatus for acquiring multiple capacitively sensed measurements from a circuit under test. Multiple digital sources are respectively connected to stimulate multiple respective first ends of multiple respective nets of interest. Respective second ends of the multiple respective nets of interest are capacitively sensed. The respective capacitively coupled signals are digitally sampled and shift correlated with respective expected digital signatures. If a high level of correlation is found for a given net, the net is electrically intact; otherwise, the net is characterized by either an open or some other fault that prevents it from meeting specification.
    Type: Application
    Filed: September 27, 2003
    Publication date: March 31, 2005
    Inventors: Curtis Tesdahl, Ronald Peiffer
  • Publication number: 20050046428
    Abstract: A novel capacitive sensor assembly that utilizes a flex circuit for amplification of capacitively sensed signals and for separating the power, ground, and measurement signals is presented. The use of a flex circuit in the capacitive probe assembly allows implementation of multiple capacitive sensors for respectively capacitively coupling multiple signals from respective multiple test points of a circuit under test. The invention integrates the sensor plate, amplifier, and return wiring for each capacitive sensor all onto one flex circuit.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 3, 2005
    Inventors: Curtis Tesdahl, David Crook
  • Publication number: 20040164752
    Abstract: Disclosed is a novel electrical probe that stores probe-specific information. A probe implemented in accordance with the invention includes a processor, memory, and a communications interface. Probe-specific information such as a probe identifier and/or calibration parameters that affect the true value of a measurement are stored in the probe memory. The probe-specific information may be retrieved by the processor from the probe memory via the communications interface.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 26, 2004
    Inventors: David T. Crook, Curtis A. Tesdahl