Patents by Inventor Julien Piot
Julien Piot 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: 11169641Abstract: A touch sensitive surface has emitters and detectors arranged around a periphery of the touch sensitive surface. The emitters produce optical beams that are received by the detectors. A stylus is configured to disturb one or more of the optical beams by a variable amount when in contact with the touch sensitive surface. The variable amount depends on an amount of force applied to the stylus towards the touch sensitive surface. A controller of the touch sensitive surface is configured to determine the touch strength of a touch event performed by the stylus based on disturbances of one or more of the optical beams. The touch strength provides a measure of the amount of force applied to the stylus.Type: GrantFiled: January 22, 2019Date of Patent: November 9, 2021Assignee: Beechrock LimitedInventors: Niall O'Cleirigh, Owen Drumm, Olivier Mathis, Danil Korchagin, Mihailo Kolundzija, Frederic Bourbon, Julien Piot
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Patent number: 11036338Abstract: A touch system includes a touch-sensitive surface with emitters and detectors arranged around its periphery. A touch event caused on an object interacts with optical beams that propagate from the emitters along the touch-sensitive surface to the detectors. Beam data indicating detected intensities of the optical beams is received. The touch system determines a set of measured interactions of the optical beams with the detected touch event from the beam data and compares the set of measured interactions with sets of model interactions of the optical beams for different candidate touch feature sets. Based on the comparison, the touch system selects one of the candidate touch features sets for the touch event. The touch system may also classify the touch event as having been caused by a particular object (or class of object) based on the selected touch feature set.Type: GrantFiled: April 19, 2019Date of Patent: June 15, 2021Assignee: Beechrock LimitedInventors: Mihailo Kolundzija, Owen Drumm, Julien Piot
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Patent number: 11003284Abstract: A touch sensitive device includes a touch surface and emitters and detectors. The emitters produce optical beams that propagate across the touch surface and are received by the detectors. Touch events from a touch object disturb the beams propagating toward the detectors. Beam values are recorded by the detectors and used to determine the touch events. The touch sensitive device also includes a camera that captures images of touch objects. The images and variations in the beams are analyzed to continuously track the touch object before, during, and after touch events.Type: GrantFiled: June 12, 2019Date of Patent: May 11, 2021Assignee: Beechrock LimitedInventors: Julien Piot, Owen Drumm
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Publication number: 20200310621Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events on a surface. The optical touch-sensitive device includes multiple emitters and detectors. Each emitter produces optical beams which are received by the detectors. Touch events on the surface disturb the optical beams received by the detectors. Responsive to a touch event, the disturbed beams are identified and evaluated. Beams disturbed by two or more touches may be ignored. Alternatively, a beam response may be adjusted for a given touch event based on an estimated contribution of another touch event that also disturbs the beam. Additionally, touch events may be characterized as contamination touch events based on one or more past touch events.Type: ApplicationFiled: March 30, 2020Publication date: October 1, 2020Inventors: Julien Piot, Mihailo Kolundzija, Nicolas Aspert, Owen Drumm, Niall O'Cleirigh
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Publication number: 20190377435Abstract: A touch sensitive device includes a touch surface and emitters and detectors. The emitters produce optical beams that propagate across the touch surface and are received by the detectors. Touch events from a touch object disturb the beams propagating toward the detectors. Beam values are recorded by the detectors and used to determine the touch events. The touch sensitive device also includes a camera that captures images of touch objects. The images and variations in the beams are analyzed to continuously track the touch object before, during, and after touch events.Type: ApplicationFiled: June 12, 2019Publication date: December 12, 2019Inventors: Julien Piot, Owen Drumm
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Patent number: 10481735Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors coupled with an optical coupler assembly through a waveguide on the surface on the optical-touch sensitive device. Each emitter produces optical beams which propagate in the waveguide via total internal reflection and are received by the detectors. Touch events disturb the optical beams, and are determined based on the disturbances. The waveguide has at least one dead zone on its surface. The dead zone is formed with a cover layer having a top surface and a bottom surface where the bottom surface of the cover layer is directly coupled to the top surface of the waveguide. The cover layer preserves optical beam propagation in the waveguide and makes the dead zone insensitive to touches on the top surface of the cover layer.Type: GrantFiled: November 22, 2017Date of Patent: November 19, 2019Assignee: Rapt IP LimitedInventors: Owen Drumm, Julien Piot, Robert Copperwhite
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Publication number: 20190324570Abstract: A touch system includes a touch-sensitive surface with emitters and detectors arranged around its periphery. A touch event caused on an object interacts with optical beams that propagate from the emitters along the touch-sensitive surface to the detectors. Beam data indicating detected intensities of the optical beams is received. The touch system determines a set of measured interactions of the optical beams with the detected touch event from the beam data and compares the set of measured interactions with sets of model interactions of the optical beams for different candidate touch feature sets. Based on the comparison, the touch system selects one of the candidate touch features sets for the touch event. The touch system may also classify the touch event as having been caused by a particular object (or class of object) based on the selected touch feature set.Type: ApplicationFiled: April 19, 2019Publication date: October 24, 2019Inventors: Mihailo Kolundzija, Owen Drumm, Julien Piot
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Publication number: 20190227670Abstract: A touch sensitive surface has emitters and detectors arranged around a periphery of the touch sensitive surface. The emitters produce optical beams that are received by the detectors. A stylus is configured to disturb one or more of the optical beams by a variable amount when in contact with the touch sensitive surface. The variable amount depends on an amount of force applied to the stylus towards the touch sensitive surface. A controller of the touch sensitive surface is configured to determine the touch strength of a touch event performed by the stylus based on disturbances of one or more of the optical beams. The touch strength provides a measure of the amount of force applied to the stylus.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Inventors: Niall O'Cleirigh, Owen Drumm, Olivier Mathis, Danil Korchagin, Mihailo Kolundzija, Frederic Bourbon, Julien Piot
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Publication number: 20180143738Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors coupled with an optical coupler assembly through a waveguide on the surface on the optical-touch sensitive device. Each emitter produces optical beams which propagate in the waveguide via total internal reflection and are received by the detectors. Touch events disturb the optical beams, and are determined based on the disturbances. The waveguide has at least one dead zone on its surface. The dead zone is formed with a cover layer having a top surface and a bottom surface where the bottom surface of the cover layer is directly coupled to the top surface of the waveguide. The cover layer preserves optical beam propagation in the waveguide and makes the dead zone insensitive to touches on the top surface of the cover layer.Type: ApplicationFiled: November 22, 2017Publication date: May 24, 2018Inventors: Owen Drumm, Julien Piot, Robert Copperwhite
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Patent number: 9836166Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors coupled with an optical coupler assembly through a waveguide on the surface on the optical-touch sensitive device. Each emitter produces optical beams which propagate in the waveguide via total internal reflection and are received by the detectors. Touch events disturb the optical beams, and are determined based on the disturbances. The waveguide has at least one dead zone on its surface. The dead zone is formed with a cover layer having a top surface and a bottom surface where the bottom surface of the cover layer is directly coupled to the top surface of the waveguide. The cover layer preserves optical beam propagation in the waveguide and makes the dead zone insensitive to touches on the top surface of the cover layer.Type: GrantFiled: June 27, 2016Date of Patent: December 5, 2017Assignee: Rapt IP LimitedInventors: Owen Drumm, Julien Piot, Robert Copperwhite
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Publication number: 20170269777Abstract: An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface. With multi-touch events, a single beam can be disturbed by more than one touch event. In one aspect, a non-linear transform is applied to measurements of the optical beams in order to linearize the effects of multiple touch events on a single optical beam. In another aspect, the effect of known touch events (i.e., reference touches) is modeled in advance, and then unknown touch events are determined with respect to the reference touches.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Inventors: Julien Piot, Mihailo Kolundzija, Danil Korchagin, Ivan Dokmanic, Martin Vetterli, Owen Drumm
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Patent number: 9671900Abstract: An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface. With multi-touch events, a single beam can be disturbed by more than one touch event. In one aspect, a non-linear transform is applied to measurements of the optical beams in order to linearize the effects of multiple touch events on a single optical beam. In another aspect, the effect of known touch events (i.e., reference touches) is modeled in advance, and then unknown touch events are determined with respect to the reference touches.Type: GrantFiled: July 27, 2015Date of Patent: June 6, 2017Assignee: Rapt IP LimitedInventors: Julien Piot, Mihailo Kolundzija, Danil Korchagin, Ivan Dokmanic, Martin Vetterli, Owen Drumm
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Patent number: 9489061Abstract: A method includes placing an input device in a passive mode of operation and periodically monitoring a displacement sensor of the input device, receiving an indication of displacement from the displacement sensor, and placing the input device in an active mode of operation characterized by a power consumption level. The method also includes determining a passing of a predetermined time period since receiving the indication of displacement, placing the input device in a second active mode of operation characterized by a second power consumption level less than the power consumption level, and periodically monitoring one or more of a plurality of touch sensors. The method further includes receiving an indication of input from the one or more of the plurality of touch sensors and placing the input device in the active mode of operation.Type: GrantFiled: November 14, 2011Date of Patent: November 8, 2016Assignee: Logitech Europe S.A.Inventors: Julien Piot, Baptiste Merminod, Christophe Dayer, Niall White, Stephen Harvey, Frederic Fortin, Mathieu Meisser, Nicolas Ramond, Olivier Mathis, Regis Croisonnier
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Publication number: 20160306501Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors coupled with an optical coupler assembly through a waveguide on the surface on the optical-touch sensitive device. Each emitter produces optical beams which propagate in the waveguide via total internal reflection and are received by the detectors. Touch events disturb the optical beams, and are determined based on the disturbances. The waveguide has at least one dead zone on its surface. The dead zone is formed with a cover layer having a top surface and a bottom surface where the bottom surface of the cover layer is directly coupled to the top surface of the waveguide. The cover layer preserves optical beam propagation in the waveguide and makes the dead zone insensitive to touches on the top surface of the cover layer.Type: ApplicationFiled: June 27, 2016Publication date: October 20, 2016Inventors: Owen Drumm, Julien Piot, Robert Copperwhite
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Patent number: 9405382Abstract: An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors coupled with an optical coupler assembly through a waveguide on the surface on the optical-touch sensitive device. Each emitter produces optical beams which propagate in the waveguide via total internal reflection and are received by the detectors. Touch events disturb the optical beams, and are determined based on the disturbances. The optical touch-sensitive device further includes an intermediate layer interposed between the waveguide and a display surface. The intermediate layer preserves optical beam propagation in the waveguide and is transparent to visible light. The optical touch-sensitive device may further include at least one frame zone, at least one dead zone, and/or at least one fixed graphics zone.Type: GrantFiled: July 22, 2013Date of Patent: August 2, 2016Assignee: Rapt IP LimitedInventors: Owen Drumm, Julien Piot, Robert Copperwhite
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Patent number: 9367146Abstract: An input device includes a housing for supporting a user's hand and a displacement sensor, mounted in the housing, for providing a displacement signal. The input device also includes a first portion of the housing operable to receive a first digit of the user and a first solid-state touch sensor disposed in the first portion and operable to detect movement of the first digit along the first portion. The input device further includes a second portion on the housing operable to receive a second digit of the user and a second solid-state touch sensor disposed in the second portion and operable to detect movement of the second digit along the second portion.Type: GrantFiled: November 14, 2011Date of Patent: June 14, 2016Assignee: Logiteh Europe S.A.Inventors: Julien Piot, Baptiste Merminod, Christophe Dayer, Niall White, Stephen Harvey, Frederic Fortin, Mathieu Meisser, Nicolas Ramond, Olivier Mathis, Regis Croisonnier
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Publication number: 20160034095Abstract: An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface. With multi-touch events, a single beam can be disturbed by more than one touch event. In one aspect, a non-linear transform is applied to measurements of the optical beams in order to linearize the effects of multiple touch events on a single optical beam. In another aspect, the effect of known touch events (i.e., reference touches) is modeled in advance, and then unknown touch events are determined with respect to the reference touches.Type: ApplicationFiled: July 27, 2015Publication date: February 4, 2016Inventors: Julien Piot, Mihailo Kolundzija, Danil Korchagin, Ivan Dokmanic, Martin Vetterli, Owen Drumm
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Patent number: 9201559Abstract: A method of operating an input device in conjunction with a host device includes determining that the input device is in a stationary state and receiving a first signal from a first sense zone of the input device. The method also includes determining an input command based on determining that the input device is in the stationary state and the first signal and transmitting a signal associated with the input command from the input device to the host device.Type: GrantFiled: November 14, 2011Date of Patent: December 1, 2015Assignee: Logitech Europe S.A.Inventors: Julien Piot, Baptiste Merminod, Christophe Dayer, Niall White, Stephen Harvey, Frederic Fortin, Mathieu Meisser, Nicolas Ramond, Olivier Mathis, Regis Croisonnier
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Patent number: 9182833Abstract: A touch sensor system includes a touch controller having a first connector and a second connector and multiple sensor zones. The touch sensor system also includes a plurality of drive lines connected to the first connector of the touch controller and to the multiple sensor zones and a plurality of sets of sense lines connected to the second connector of the touch controller. Each set of the plurality of sets of sense lines is connected to one of the multiple sensor zones.Type: GrantFiled: November 14, 2011Date of Patent: November 10, 2015Assignee: Logitech Europe S.A.Inventors: Julien Piot, Baptiste Merminod, Christophe Dayer, Niall White, Stephen Harvey, Frederic Fortin, Mathieu Meisser, Nicolas Ramond, Olivier Mathis, Regis Croisonnier
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Patent number: 9092091Abstract: An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface. With multi-touch events, a single beam can be disturbed by more than one touch event. In one aspect, a non-linear transform is applied to measurements of the optical beams in order to linearize the effects of multiple touch events on a single optical beam. In another aspect, the effect of known touch events (i.e., reference touches) is modeled in advance, and then unknown touch events are determined with respect to the reference touches.Type: GrantFiled: November 27, 2013Date of Patent: July 28, 2015Assignee: Rapt IP LimitedInventors: Julien Piot, Mihailo Kolundzija, Danil Korchagin, Ivan Dokmanic, Martin Vetterli, Owen Drumm