Patents Assigned to Blue Line Engineering
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Patent number: 10345323Abstract: 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: GrantFiled: January 21, 2016Date of Patent: July 9, 2019Assignee: BLUE LINE ENGINEERING CO.Inventor: Gregory H. Ames
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Patent number: 9816840Abstract: 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: GrantFiled: August 31, 2016Date of Patent: November 14, 2017Assignee: Blue Line EngineeringInventors: Steven D. Roach, Gregory H. Ames, Philip N. Zercher
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Publication number: 20170234704Abstract: 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: ApplicationFiled: August 31, 2016Publication date: August 17, 2017Applicant: Blue Line Engineering CompanyInventors: Steven D. Roach, Gregory H. Ames, Philip N. Zercher
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Patent number: 9698844Abstract: 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: GrantFiled: January 29, 2016Date of Patent: July 4, 2017Assignee: Blue Line Engineering CompanyInventor: Gregory Ames
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Patent number: 9459369Abstract: 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: GrantFiled: October 4, 2013Date of Patent: October 4, 2016Assignee: Blue Line Engineering CompanyInventors: Steven D. Roach, Gregory H. Ames, Philip N. Zercher
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Publication number: 20160233907Abstract: 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: ApplicationFiled: January 29, 2016Publication date: August 11, 2016Applicant: Blue Line Engineering CompanyInventor: Gregory Ames
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Publication number: 20160209439Abstract: 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: ApplicationFiled: January 21, 2016Publication date: July 21, 2016Applicant: Blue Line Engineering CompanyInventor: Gregory H. Ames
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Patent number: 9281854Abstract: 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: GrantFiled: January 22, 2015Date of Patent: March 8, 2016Assignee: Blue Line Engineering CompanyInventor: Gregory Ames
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Patent number: 9267958Abstract: 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: GrantFiled: December 16, 2014Date of Patent: February 23, 2016Assignee: Blue Line Engineering CompanyInventor: Gregory H. Ames
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Publication number: 20150236802Abstract: 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: ApplicationFiled: January 22, 2015Publication date: August 20, 2015Applicant: Blue Line Engineering CompanyInventor: Gregory Ames
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Publication number: 20150204896Abstract: 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: ApplicationFiled: December 16, 2014Publication date: July 23, 2015Applicant: Blue Line Engineering CompanyInventor: Gregory H. Ames