Patents Assigned to Blue Line Engineering
  • Patent number: 10345323
    Abstract: A single sensing unit having two electrodes with a common thermal reference is positioned near the centroid of the inertial mass of a differential inductive accelerometer. As the mass is displaced a first sensor detects an increase in inductance while a second sensor detects a decrease in inductance. Significantly, the first and second sensors share a common thermal reference eliminating any thermal differential. As the sensor system is closely aligned with the centroid of the inertial mass the sensor system of the present invention reduces or eliminates any systemic error.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 9, 2019
    Assignee: BLUE LINE ENGINEERING CO.
    Inventor: Gregory H. Ames
  • Patent number: 9816840
    Abstract: A transconductor converts voltage on an inductive sensor to a proportional current using two “coupling” capacitors. Responsive to movement of an electrically conductive target from the null position a resonant current is formed between the two sensor coils. A single differential transistor pair switched by periodic drive signals commutes the net alternating current at the single input to direct current.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: November 14, 2017
    Assignee: Blue Line Engineering
    Inventors: Steven D. Roach, Gregory H. Ames, Philip N. Zercher
  • Publication number: 20170234704
    Abstract: A transconductor converts voltage on an inductive sensor to a proportional current using two “coupling” capacitors. Responsive to movement of an electrically conductive target from the null position a resonant current is formed between the two sensor coils. A single differential transistor pair switched by periodic drive signals commutes the net alternating current at the single input to direct current.
    Type: Application
    Filed: August 31, 2016
    Publication date: August 17, 2017
    Applicant: Blue Line Engineering Company
    Inventors: Steven D. Roach, Gregory H. Ames, Philip N. Zercher
  • Patent number: 9698844
    Abstract: The present invention detects, determines, and mitigates signal-path processing errors. An extracted and inverted reference signal is compared to the carrier signal produced by various functional components to determine the error introduced to that signal by functional components. After the signal has been processed by various signal-processing components, the signal can once again be compared to the inverted reference signal so that a signal-path processing bias can be determined. Using that determination, a signal modification can be initiated to substantially reduce or eliminate all signal-path processing error.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 4, 2017
    Assignee: Blue Line Engineering Company
    Inventor: Gregory Ames
  • Patent number: 9459369
    Abstract: A transconductor converts voltage on an inductive sensor to a proportional current using two “coupling” capacitors. Responsive to movement of an electrically conductive target from the null position a resonant current is formed between the two sensor coils. A single differential transistor pair switched by periodic drive signals commutes the net alternating current at the single input to direct current.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: October 4, 2016
    Assignee: Blue Line Engineering Company
    Inventors: Steven D. Roach, Gregory H. Ames, Philip N. Zercher
  • Publication number: 20160233907
    Abstract: The present invention detects, determines, and mitigates signal-path processing errors. An extracted and inverted reference signal is compared to the carrier signal produced by various functional components to determine the error introduced to that signal by functional components. After the signal has been processed by various signal-processing components, the signal can once again be compared to the inverted reference signal so that a signal-path processing bias can be determined. Using that determination, a signal modification can be initiated to substantially reduce or eliminate all signal-path processing error.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 11, 2016
    Applicant: Blue Line Engineering Company
    Inventor: Gregory Ames
  • Publication number: 20160209439
    Abstract: A single sensing unit having two electrodes with a common thermal reference is positioned near the centroid of the inertial mass of a differential inductive accelerometer. As the mass is displaced a first sensor detects an increase in inductance while a second sensor detects a decrease in inductance. Significantly, the first and second sensors share a common thermal reference eliminating any thermal differential. As the sensor system is closely aligned with the centroid of the inertial mass the sensor system of the present invention reduces or eliminates any systemic error.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 21, 2016
    Applicant: Blue Line Engineering Company
    Inventor: Gregory H. Ames
  • Patent number: 9281854
    Abstract: The present invention detects, determines, and mitigates signal-path processing errors. An extracted and inverted reference signal is compared to the carrier signal produced by various functional components to determine the error introduced to that signal by functional components. After the signal has been processed by various signal-processing components, the signal can once again be compared to the inverted reference signal so that a signal-path processing bias can be determined. Using that determination, a signal modification can be initiated to substantially reduce or eliminate all signal-path processing error.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: March 8, 2016
    Assignee: Blue Line Engineering Company
    Inventor: Gregory Ames
  • Patent number: 9267958
    Abstract: A single sensing unit having two electrodes with a common thermal reference is positioned near the centroid of the inertial mass of a differential inductive accelerometer. As the mass is displaced a first sensor detects an increase in inductance while a second sensor detects a decrease in inductance. Significantly, the first and second sensors share a common thermal reference eliminating any thermal differential. As the sensor system is closely aligned with the centroid of the inertial mass the sensor system of the present invention reduces or eliminates any systemic error.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: February 23, 2016
    Assignee: Blue Line Engineering Company
    Inventor: Gregory H. Ames
  • Publication number: 20150236802
    Abstract: The present invention detects, determines, and mitigates signal-path processing errors. An extracted and inverted reference signal is compared to the carrier signal produced by various functional components to determine the error introduced to that signal by functional components. After the signal has been processed by various signal-processing components, the signal can once again be compared to the inverted reference signal so that a signal-path processing bias can be determined. Using that determination, a signal modification can be initiated to substantially reduce or eliminate all signal-path processing error.
    Type: Application
    Filed: January 22, 2015
    Publication date: August 20, 2015
    Applicant: Blue Line Engineering Company
    Inventor: Gregory Ames
  • Publication number: 20150204896
    Abstract: A single sensing unit having two electrodes with a common thermal reference is positioned near the centroid of the inertial mass of a differential inductive accelerometer. As the mass is displaced a first sensor detects an increase in inductance while a second sensor detects a decrease in inductance. Significantly, the first and second sensors share a common thermal reference eliminating any thermal differential. As the sensor system is closely aligned with the centroid of the inertial mass the sensor system of the present invention reduces or eliminates any systemic error.
    Type: Application
    Filed: December 16, 2014
    Publication date: July 23, 2015
    Applicant: Blue Line Engineering Company
    Inventor: Gregory H. Ames