Patents by Inventor Eric Chevallaz
Eric Chevallaz 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).
-
Publication number: 20250334466Abstract: A method carried out by a processor for compensating temperature dependencies of a piezo resistive element integrated in a pressure sensor includes the steps of: receiving, from the temperature circuitry, a first temperature signal for determining a first temperature of the pressure circuitry; receiving, from the sensor die, a first output signal for determining a first resistive value of the piezo resistive element at the first temperature; transmitting, to the built-in heating element, after receiving the first output signal, a heating signal for heating the pressure circuitry to a second temperature; receiving, from the sensor die after termination of the heating, a second output signal for determining a second resistive value of the piezo resistive element at the second temperature; and storing, in the memory, an updated TC for the piezo resistive element calculated based on the first temperature, the first resistive value, the second temperature, and the second resistive value.Type: ApplicationFiled: April 29, 2025Publication date: October 30, 2025Inventors: Kaspar JENNI, Gilles BOISOT, Ilie POENARU, Eric CHEVALLAZ
-
Publication number: 20250328192Abstract: Techniques are described for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include a light source configured to output light, a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a scan pattern on the eye of the user, and light detectors to detect light reflected from the eye. The orientation of the diffractive grating can be moved such that the light reflected from the diffractive grating is scanned across the eye according to the scan pattern. Light intensity pattern(s) are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected by the eye as the light is scanned across the eye. One or more physiological characteristics and/or a rotation speed of the eye are determined based on detected light intensity pattern(s).Type: ApplicationFiled: June 28, 2025Publication date: October 23, 2025Inventors: Nicolas Abele, Eric Chevallaz, Philippe De Gol, Julien Gamet, Gatien Cosendey, Stephan Arthur Gamper
-
Patent number: 12393271Abstract: Techniques are described for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include a light source configured to output light, a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a scan pattern on the eye of the user, and light detectors to detect light reflected from the eye. The orientation of the diffractive grating can be moved such that the light reflected from the diffractive grating is scanned across the eye according to the scan pattern. Light intensity pattern(s) are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected by the eye as the light is scanned across the eye. One or more physiological characteristics and/or a rotation speed of the eye are determined based on detected light intensity pattern(s).Type: GrantFiled: June 7, 2024Date of Patent: August 19, 2025Assignee: Magic Leap, Inc.Inventors: Nicolas Abele, Eric Chevallaz, Philippe De Gol, Julien Gamet, Gatien Cosendey, Stephan Arthur Gamper
-
Publication number: 20240319790Abstract: Techniques are described for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include a light source configured to output light, a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a scan pattern on the eye of the user, and light detectors to detect light reflected from the eye. The orientation of the diffractive grating can be moved such that the light reflected from the diffractive grating is scanned across the eye according to the scan pattern. Light intensity pattern(s) are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected by the eye as the light is scanned across the eye. One or more physiological characteristics and/or a rotation speed of the eye are determined based on detected light intensity pattern(s).Type: ApplicationFiled: June 7, 2024Publication date: September 26, 2024Inventors: Nicolas Abele, Eric Chevallaz, Philippe De Gol, Julien Gamet, Gatien Cosendey, Stephan Arthur Gamper
-
Patent number: 12039099Abstract: Techniques are described for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include a light source configured to output light, a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a scan pattern on the eye of the user, and light detectors to detect light reflected from the eye. The orientation of the diffractive grating can be moved such that the light reflected from the diffractive grating is scanned across the eye according to the scan pattern. Light intensity pattern(s) are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected by the eye as the light is scanned across the eye. One or more physiological characteristics of the eye are determined based on detected light intensity pattern(s).Type: GrantFiled: April 29, 2023Date of Patent: July 16, 2024Assignee: Magic Leap, Inc.Inventors: Nicolas Abele, Eric Chevallaz, Philippe De Gol, Julien Gamet, Gatien Cosendey, Stephan Arthur Gamper
-
Patent number: 11681362Abstract: Described herein are methods and display systems for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include: a light source configured to output light and a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a light pattern on the eye of the user; a plurality of light detectors to detect light reflected from the eye; and one or more processors. The display system changes the orientation of the diffractive grating, such that the light pattern reflected from the diffractive grating is scanned along an axis across the eye. Light intensity patterns are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected off of the eye as the light pattern is scanned across the eye.Type: GrantFiled: November 23, 2020Date of Patent: June 20, 2023Assignee: Magic Leap, Inc.Inventors: Nicolas Abele, Eric Chevallaz, Philippe De Gol, Julien Gamet, Gatien Cosendey, Stephan Arthur Gamper
-
Patent number: 11042024Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.Type: GrantFiled: March 8, 2019Date of Patent: June 22, 2021Assignee: Google LLCInventors: Eric Chevallaz, Nicolas Abele
-
Publication number: 20210157401Abstract: Described herein are methods and display systems for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include: a light source configured to output light and a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a light pattern on the eye of the user; a plurality of light detectors to detect light reflected from the eye; and one or more processors. The display system changes the orientation of the diffractive grating, such that the light pattern reflected from the diffractive grating is scanned along an axis across the eye. Light intensity patterns are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected off of the eye as the light pattern is scanned across the eye.Type: ApplicationFiled: November 23, 2020Publication date: May 27, 2021Inventors: Nicolas Abele, Eric Chevallaz, Philippe De Gol, Julien Gamet, Gatien Cosendey, Stephan Arthur Gamper
-
Publication number: 20190273900Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.Type: ApplicationFiled: March 8, 2019Publication date: September 5, 2019Inventors: Eric CHEVALLAZ, Nicolas ABELE
-
Patent number: 10250861Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.Type: GrantFiled: November 22, 2013Date of Patent: April 2, 2019Assignee: North Inc.Inventors: Eric Chevallaz, Nicolas Abele
-
Publication number: 20160255318Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.Type: ApplicationFiled: November 22, 2013Publication date: September 1, 2016Applicant: INTEL CORPORATIONInventors: Eric Chevallaz, Nicolas Abele
-
Publication number: 20160142687Abstract: A device comprising, a mirror which is configured to oscillate in response to an oscillation signal, wherein the device is configured such that oscillation of the mirror will induce a signal; and a circuit in operable cooperation with the mirror such that an induced signal can be measured by the circuit and wherein the circuit is configured to provide an oscillation signal proportional to the measured induced signal; wherein the device is configured such that the mirror can receive the oscillation signal so that the oscillation signal is filtered due to oscillation limitations of mirror, to provide a filtered signal.Type: ApplicationFiled: September 10, 2015Publication date: May 19, 2016Applicant: INTEL CORPORATIONInventors: Eric CHEVALLAZ, Marc PASTRE, Francois KRUMMENACHER, Kayal MAHER
-
Patent number: 9203414Abstract: A device comprising, a mirror which is configured to oscillate in response to an oscillation signal, wherein the device is configured such that oscillation of the mirror will induce a signal; and a circuit in operable cooperation with the mirror such that an induced signal can be measured by the circuit and wherein the circuit is configured to provide an oscillation signal proportional to the measured induced signal; wherein the device is configured such that the mirror can receive the oscillation signal so that the oscillation signal is filtered due to oscillation limitations of mirror, to provide a filtered signal.Type: GrantFiled: September 30, 2011Date of Patent: December 1, 2015Assignee: INTEL CORPORATIONInventors: Eric Chevallaz, Marc Pastre, Francois Krummenacher, Maher Kayal
-
Publication number: 20140225677Abstract: A device comprising, a mirror which is configured to oscillate in response to an oscillation signal, wherein the device is configured such that oscillation of the mirror will induce a signal; and a circuit in operable cooperation with the mirror such that an induced signal can be measured by the circuit and wherein the circuit is configured to provide an oscillation signal proportional to the measured induced signal; wherein the device is configured such that the mirror can receive the oscillation signal so that the oscillation signal is filtered due to oscillation limitations of mirror, to provide a filtered signal.Type: ApplicationFiled: September 30, 2011Publication date: August 14, 2014Inventors: Eric Chevallaz, Marc Pastre, Francois Krummenacher, Maher Kayal