Patents by Inventor Stéphane Savard
Stéphane Savard 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).
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Patent number: 11255659Abstract: Non-contacting caliper measurements of free-standing sheets detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface and scanning the laser beam through a selected wavelength range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Alternatively, the intensity of an interference pattern formed from the superposition of radiation that is directly transmitted through the web and radiation that is transmitted through the web after internal reflections from the internal surfaces of the web. Thickness can be extracted from the fringe separation in the interference pattern.Type: GrantFiled: February 20, 2018Date of Patent: February 22, 2022Assignee: Honeywell ASCaInventors: Michael Kon Yew Hughes, Sebastien Tixier, Stephane Savard
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Patent number: 10180342Abstract: A method of level finding includes providing characteristics of a shape of a transmitted pulse in time domain launched onto a waveguide into a tank having at least one material therein, physical properties of the waveguide and real and imaginary dielectric characteristics of the material at a frequency of the pulse. A level finding algorithm having a coarse search and a fine search is implemented, where the coarse search minimizes a prediction error between an echo signal (echo curve y(k)) and a sampled pulse model echo p(k) to obtain an objective function J(k) in a vicinity of a minimum prediction error (k*). The fine search calculates at least one minimum or maximum using J(k) in the vicinity of k*. The minimum or the maximum corresponds to a level of the material or an interface involving the material.Type: GrantFiled: September 21, 2015Date of Patent: January 15, 2019Assignee: Honeywell International Inc.Inventors: Johan Backstrom, Sarabjit Singh, Iouri Markevitch, Stephane Savard, Michael Kon Yew Hughes, Frank Martin Haran
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Patent number: 10072922Abstract: Non-contacting caliper measurements of free standing sheets such as porous polymer and paper detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface wherein the laser beam comprises radiation having a wavelength in the 3-50 micron range and scanning the laser beam through a selected angle range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Thickness can be extracted from the fringe separation in the interference pattern. Rotating and focusing elements ensure that the spot position on the sheet remains the same while varying the incident angle.Type: GrantFiled: January 11, 2017Date of Patent: September 11, 2018Assignee: Honeywell LimitedInventors: Sebastien Tixier, Michael Kon Yew Hughes, Stephane Savard
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Patent number: 10055519Abstract: A method of pulsed radar interface determination for a first and second material in a tank. An interface level determination model is provided including a transfer function that utilizes refractive indices for the materials and thickness of the second material. At least one actual radar pulse is transmitted into the tank and a resulting echo curve portion including a measured interface pulse(s) around the interface location is measured. The interface model is simulated with a reference pulse and an initial thickness value to generate an initial model generated interface pulse (initial MGIP). The measured interface pulse is compared to the initial MGIP pulse point-by-point to determine residuals. If the residuals sum >a predetermined threshold, the comparing is repeated with an updated interface model generated with an updated thickness value that provides an updated MGIP pulse. When the sum of residuals is ?predetermined threshold, the thickness is determined.Type: GrantFiled: October 12, 2015Date of Patent: August 21, 2018Assignee: Honeywell International Inc.Inventors: Stephane Savard, Frank Martin Haran
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Publication number: 20180221187Abstract: The orthotic foot brace for a person wearing a footwear generally has: a lower leg holder securable to a lower leg of the person for use, a lower leg strut connected to the lower leg holder and extending downwardly towards the footwear during use; a foot strut structurally connected to the lower leg strut and having at least one side portion, each side portion extending forwardly along a respective side of the footwear and extending outwardly along a respective side of the footwear; an instep strut provided in the form of an extension of the foot strut along a long axis of the footwear, the instep strut having a distal portion securable to the footwear, and at least a proximal portion being slidably connected to the foot strut in a manner to allow adjusting the extension distance of the distal portion to a selected position.Type: ApplicationFiled: June 23, 2016Publication date: August 9, 2018Inventor: Stéphane SAVARD
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Patent number: 10007743Abstract: A method of modeling a pulsed radar gauge (PRG) that includes a transceiver coupled by a process connection to a probe installed on a tank having at least one product material therein. A mathematical model is provided that includes (i) dielectric properties and dimensions of materials used in the process connection, (ii) at least one tank dimension, (iii) dielectric characteristics of the product material, and (iv) a probe length. Using a processor implementing a stored echo prediction algorithm that utilizes the mathematical model inputting pulse characteristics including a shape of an input radar pulse launched by a transmitter of the transceiver onto the probe into the mathematical model, and generating a predicted echo curve from the mathematical model.Type: GrantFiled: September 21, 2015Date of Patent: June 26, 2018Inventors: Frank Martin Haran, Stephane Savard
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Publication number: 20180172432Abstract: Non-contacting caliper measurements of free-standing sheets detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface and scanning the laser beam through a selected wavelength range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Alternatively, the intensity of an interference pattern formed from the superposition of radiation that is directly transmitted through the web and radiation that is transmitted through the web after internal reflections from the internal surfaces of the web. Thickness can be extracted from the fringe separation in the interference pattern.Type: ApplicationFiled: February 20, 2018Publication date: June 21, 2018Inventors: Michael Kon Yew Hughes, Sebastien Tixier, Stephane Savard
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Publication number: 20170131087Abstract: Non-contacting caliper measurements of free standing sheets such as porous polymer and paper detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface wherein the laser beam comprises radiation having a wavelength in the 3-50 micron range and scanning the laser beam through a selected angle range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Thickness can be extracted from the fringe separation in the interference pattern. Rotating and focusing elements ensure that the spot position on the sheet remains the same while varying the incident angle.Type: ApplicationFiled: January 11, 2017Publication date: May 11, 2017Inventors: Sebastien Tixier, Michael Kon Yew Hughes, Stephane Savard
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Patent number: 9581433Abstract: Non-contacting caliper measurements of free standing sheets such as porous polymer and paper detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface wherein the laser beam comprises radiation having a wavelength in the 3-50 micron range and scanning the laser beam through a selected angle range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected From the exposed outer surface and from the inner surface. Thickness can be extracted from the fringe separation in the interference pattern. Rotating and focusing elements ensure that the spot position on the sheet remains the same while varying the incident angle.Type: GrantFiled: December 11, 2013Date of Patent: February 28, 2017Assignee: Honeywell ASCA Inc.Inventors: Sebastien Tixier, Michael Kon Yew Hughes, Stephane Savard
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Publication number: 20160117426Abstract: A method of pulsed radar interface determination for a first and second material in a tank. An interface level determination model is provided including a transfer function that utilizes refractive indices for the materials and thickness of the second material. At least one actual radar pulse is transmitted into the tank and a resulting echo curve portion including a measured interface pulse(s) around the interface location is measured. The interface model is simulated with a reference pulse and an initial thickness value to generate an initial model generated interface pulse (initial MGIP). The measured interface pulse is compared to the initial MGIP pulse point-by-point to determine residuals. If the residuals sum >a predetermined threshold, the comparing is repeated with an updated interface model generated with an updated thickness value that provides an updated MGIP pulse. When the sum of residuals is ?predetermined threshold, the thickness is determined.Type: ApplicationFiled: October 12, 2015Publication date: April 28, 2016Inventors: STEPHANE SAVARD, FRANK MARTIN HARAN
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Publication number: 20160097669Abstract: A method of level finding includes providing characteristics of a shape of a transmitted pulse in time domain launched onto a waveguide into a tank having at least one material therein, physical properties of the waveguide and real and imaginary dielectric characteristics of the material at a frequency of the pulse. A level finding algorithm having a coarse search and a fine search is implemented, where the coarse search minimizes a prediction error between an echo signal (echo curve y(k)) and a sampled pulse model echo p(k) to obtain an objective function J(k) in a vicinity of a minimum prediction error (k*). The fine search calculates at least one minimum or maximum using J(k) in the vicinity of k*. The minimum or the maximum corresponds to a level of the material or an interface involving the material.Type: ApplicationFiled: September 21, 2015Publication date: April 7, 2016Inventors: JOHAN BACKSTROM, SARABJIT SINGH, IOURI MARKEVITCH, STEPHANE SAVARD, MICHAEL KON YEW HUGHES, FRANK MARTIN HARAN
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Publication number: 20160098500Abstract: A method of modeling a pulsed radar gauge (PRG) that includes a transceiver coupled by a process connection to a probe installed on a tank having at least one product material therein. A mathematical model is provided that includes (i) dielectric properties and dimensions of materials used in the process connection, (ii) at least one tank dimension, (iii) dielectric characteristics of the product material, and (iv) a probe length. Using a processor implementing a stored echo prediction algorithm that utilizes the mathematical model inputting pulse characteristics including a shape of an input radar pulse launched by a transmitter of the transceiver onto the probe into the mathematical model, and generating a predicted echo curve from the mathematical model.Type: ApplicationFiled: September 21, 2015Publication date: April 7, 2016Inventors: FRANK MARTIN HARAN, STEPHANE SAVARD
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Publication number: 20150346030Abstract: Robust terahertz time-domain spectrometer has a reflective surface arrangement that renders the sensor insensitive to x or y displacement. The apparatus includes: (a) first scanner head; (b) a first reflective surface; (c) emitter; (d) beam splitter to yield reference radiation pulses and sample radiation pulses; (e) first reflector to reflect sample radiation pulses that have been transmitted through the sample to generate reflected sample radiation pulses that are directed towards a web; (f) second reflector that reflects the reference radiation pulses to generate reflected reference radiation pulses that are directed towards the beam splitter which in turn transmits a portion of the reflected references radiation pulses towards the web; and (g) a detector that receives (i) the reflected sample radiation pulses that have interacted with the sample a plurality of times and (ii) reflected reference radiation pulses that have interacted with the sample a plurality of times.Type: ApplicationFiled: May 30, 2014Publication date: December 3, 2015Applicant: Honeywell ASCa Inc.Inventor: Stephane Savard
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Patent number: 9182281Abstract: Robust terahertz time-domain spectrometer has a reflective surface arrangement that renders the sensor insensitive to x or y displacement. The apparatus includes: (a) first scanner head; (b) a first reflective surface; (c) emitter; (d) beam splitter to yield reference radiation pulses and sample radiation pulses; (e) first reflector to reflect sample radiation pulses that have been transmitted through the sample to generate reflected sample radiation pulses that are directed towards a web; (f) second reflector that reflects the reference radiation pulses to generate reflected reference radiation pulses that are directed towards the beam splitter which in turn transmits a portion of the reflected references radiation pulses towards the web; and (g) a detector that receives (i) the reflected sample radiation pulses that have interacted with the sample a plurality of times and (ii) reflected reference radiation pulses that have interacted with the sample a plurality of times.Type: GrantFiled: May 30, 2014Date of Patent: November 10, 2015Assignee: Honeywell ASCA Inc.Inventor: Stephane Savard
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Patent number: 9140542Abstract: An analytical model simulates the propagation of radiation through a coated continuous web where layer thickness and refractive index, as variables, determine the speed and direction of transmitted radiation. The model predicts characteristics of transmitted radiation based on characteristics of incident radiation and initially assigned values for layer thicknesses. Coating thickness(s) are ascertained in a process whereby incident radiation of known characteristics is directed onto a coated web and thereafter, actual measurements of transmitted radiation are compared to predicted characteristics. Using a fitting algorithm, the assigned thickness(es) of the layer(s) of the model are adjusted and the process repeated until the actual and predicted values are within desired limits at which time, the assigned thickness(es) represent the measured calipers.Type: GrantFiled: April 11, 2012Date of Patent: September 22, 2015Assignee: Honeywell ASCa Inc.Inventors: Stephane Savard, Adam Krolak
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Publication number: 20150253127Abstract: Non-contacting caliper measurements of free-standing sheets detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface and scanning the laser beam through a selected wavelength range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Alternatively, the intensity of an interference pattern formed from the superposition of radiation that is directly transmitted through the web and radiation that is transmitted through the web after internal reflections from the internal surfaces of the web. Thickness can be extracted from the fringe separation in the interference pattern.Type: ApplicationFiled: March 4, 2014Publication date: September 10, 2015Applicant: Honeywell ASCa Inc.Inventors: Michael Kon Yew Hughes, Sebastien Tixier, Stephane Savard
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Publication number: 20150159995Abstract: Non-contacting caliper measurements of free standing sheets such as porous polymer and paper detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface wherein the laser beam comprises radiation having a wavelength in the 3-50 micron range and scanning the laser beam through a selected angle range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected From the exposed outer surface and from the inner surface. Thickness can be extracted from the fringe separation in the interference pattern. Rotating and focusing elements ensure that the spot position on the sheet remains the same while varying the incident angle.Type: ApplicationFiled: December 11, 2013Publication date: June 11, 2015Applicant: Honeywell ASCa Inc.Inventors: Sebastien Tixier, Michael Kon Yew Hughes, Stephane Savard
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Patent number: 8638443Abstract: A method for compensating for errors in a spectrometer is provided that includes measuring at least a portion of a path length for a signal traveling through the spectrometer during a measurement scan of a material. A detector signal corresponding to the measurement scan is generated. Compensation for errors in the detector signal is provided based on the measurement of the path length.Type: GrantFiled: May 24, 2011Date of Patent: January 28, 2014Assignee: Honeywell International Inc.Inventors: Frank M. Haran, Stéphane Savard
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Patent number: D804044Type: GrantFiled: November 2, 2015Date of Patent: November 28, 2017Assignee: ORTHESES TURBOMED INC./TURBOMED ORTHOTICS INC.Inventor: Stéphane Savard
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Patent number: D875960Type: GrantFiled: October 17, 2017Date of Patent: February 18, 2020Assignee: ORTHÈSES TURBOMED INC. / TURBOMED ORTHOTICS INC.Inventor: Stéphane Savard