Patents by Inventor Hakan Bergstrom
Hakan Bergstrom 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).
-
Patent number: 11579732Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: GrantFiled: February 15, 2022Date of Patent: February 14, 2023Assignee: FlatFrog Laboratories ABInventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
-
Patent number: 11579731Abstract: An assembly for holding and controlling curvature of a glass plate for an optical touch sensitive system is described. The assembly comprising a first frame element extending in a first plane and configured to extend at least partially around a panel; at least one second frame element extending in a second plane and forming a support portion for the plate, and at least one spacing element positioned at least partially between the support portion and the first frame element. The spacing element us configured to control a curvature of the first frame element and wherein the at least one second frame element is configured to engage the plate at the support portion, is attached to the first frame element, and is tiltable, by controlling the curvature of the first frame element with said spacing element, to control a curvature of the plate.Type: GrantFiled: September 14, 2020Date of Patent: February 14, 2023Assignee: FlatFrog Laboratories ABInventors: Aleksander Kocovski, Hakan Bergstrom, Jens Thorvinger
-
Patent number: 11567610Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of emitters and detectors arranged along a perimeter of the light transmissive panel, and a light directing arrangement arranged adjacent the perimeter. The emitters are arranged to emit a respective beam of emitted light and the light directing arrangement is arranged to direct the light along a light path from the emitters to the touch surface. A diffusive light scattering element is arranged in the light path.Type: GrantFiled: March 5, 2019Date of Patent: January 31, 2023Assignee: FlatFrog Laboratories ABInventors: Håkan Bergström, Thomas Craven-Bartle, Tomas Svensson
-
Patent number: 11494035Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: GrantFiled: February 3, 2022Date of Patent: November 8, 2022Assignee: FlatFrog Laboratories ABInventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
-
Patent number: 11474644Abstract: A touch sensing apparatus is disclosed, comprising a light transmissive panel that defines a touch surface, an opposite rear surface, and panel sides extending between the touch surface and rear surface. The panel sides define a perimeter of the light transmissive panel. The touch sensing apparatus comprises a plurality of light emitters and detectors arranged along the perimeter and adjacent the panel sides, a light guide arranged along the perimeter and having a first reflective surface comprising a diffusive light scattering element.Type: GrantFiled: March 29, 2021Date of Patent: October 18, 2022Assignee: FlatFrog Laboratories ABInventors: Håkan Bergström, Aleksander Kocovski
-
Publication number: 20220291774Abstract: A touch sensing apparatus is provided comprising: a light transmissive panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the light transmissive panel, a plurality of optical components arranged along the perimeter of the light transmissive panel, wherein the light emitters are arranged to emit a respective beam of emitted light and the optical components are configured to direct the emitted light to a path across the light transmissive panel. Optionally, optical components comprise a light guide arranged to receive light from the light emitters through a first surface and couple out light travelling in the light guide to the touch surface through a second surface. The second surface may be diffusively transmissive. The light guide may further comprise a reflective surface configured to internally reflect light travelling in the light guide from the first surface to the diffusive surface.Type: ApplicationFiled: February 2, 2022Publication date: September 15, 2022Inventors: Håkan Bergström, Thomas Craven-Bartle, Lars Rippe
-
Publication number: 20220236828Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: ApplicationFiled: February 15, 2022Publication date: July 28, 2022Inventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
-
Publication number: 20220229513Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: ApplicationFiled: February 3, 2022Publication date: July 21, 2022Inventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
-
Publication number: 20220221955Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface extending in a plane having a normal axis and a back surface opposite the touch surface, a display arranged proximal to the back surface and configured to display an image through a display portion of the touch surface, a plurality of emitters and detectors arranged along a perimeter of the panel and beneath the panel, wherein the emitters are arranged to emit non-visible light and the first and second light directing surfaces are arranged to receive the light and direct the light across the touch surface substantially parallel to the touch surface, wherein the apparatus comprising at least one optical filter arranged outside of the display portion of the touch surface and configured to filter visible light.Type: ApplicationFiled: May 15, 2020Publication date: July 14, 2022Inventors: Håkan Bergström, Tomas SVENSSON, Aleksander KOCOVSKI
-
Patent number: 11281338Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: GrantFiled: August 10, 2020Date of Patent: March 22, 2022Assignee: FlatFrog Laboratories ABInventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
-
Patent number: 11281335Abstract: An assembly for holding and controlling curvature of a glass plate for an optical touch sensitive system is described. The assembly comprising a first frame element extending in a first plane and configured to extend at least partially around a panel; at least one second frame element extending in a second plane and forming a support portion for the plate, and at least one spacing element positioned at least partially between the support portion and the first frame element. The spacing element us configured to control a curvature of the first frame element and wherein the at least one second frame element is configured to engage the plate at the support portion, is attached to the first frame element, and is tiltable, by controlling the curvature of the first frame element with said spacing element, to control a curvature of the plate.Type: GrantFiled: May 3, 2019Date of Patent: March 22, 2022Assignee: FlatFrog Laboratories ABInventors: Aleksander Kocovski, Hakan Bergstrom, Jens Thorvinger
-
Patent number: 11269460Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: GrantFiled: November 23, 2020Date of Patent: March 8, 2022Assignee: FlatFrog Laboratories ABInventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
-
Patent number: 11256371Abstract: A touch sensing apparatus is provided comprising: a light transmissive panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the light transmissive panel, a plurality of optical components arranged along the perimeter of the light transmissive panel, wherein the light emitters are arranged to emit a respective beam of emitted light and the optical components are configured to direct the emitted light to a path across the light transmissive panel. Optionally, optical components comprise a light guide arranged to receive light from the light emitters through a first surface and couple out light travelling in the light guide to the touch surface through a second surface. The second surface may be diffusively transmissive. The light guide may further comprise a reflective surface configured to internally reflect light travelling in the light guide from the first surface to the diffusive surface.Type: GrantFiled: August 30, 2018Date of Patent: February 22, 2022Assignee: FlatFrog Laboratories ABInventors: Håkan Bergström, Thomas Craven-Bartle, Lars Rippe
-
Publication number: 20220035481Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface extending in a plane having a normal axis, emitters and detectors arranged along a perimeter of the panel, a light directing element arranged adjacent the perimeter, the emitters are arranged to emit a respective beam of light and the light directing element is arranged to receive the beam of light through a first surface and couple out the beam of light through a second surface to direct the beam of light across the touch surface substantially parallel to the touch surface, the beam of light is received through the first surface at a first distance from the touch surface and is deflected by the light directing element to the second surface to couple out the beam of light at a second distance from the touch surface, wherein the first distance is greater than the second distance.Type: ApplicationFiled: October 7, 2019Publication date: February 3, 2022Inventors: Håkan Bergström, Tomas Svensson
-
Publication number: 20210286464Abstract: A touch sensing apparatus is disclosed, comprising a light transmissive panel that defines a touch surface, an opposite rear surface, and panel sides extending between the touch surface and rear surface. The panel sides define a perimeter of the light transmissive panel. The touch sensing apparatus comprises a plurality of light emitters and detectors arranged along the perimeter and adjacent the panel sides, a light guide arranged along the perimeter and having a first reflective surface comprising a diffusive light scattering element.Type: ApplicationFiled: March 29, 2021Publication date: September 16, 2021Inventors: Håkan Bergström, Aleksander KOCOVSKI
-
Publication number: 20210255662Abstract: An elongate frame for a touch-sensitive device comprises: a bottom wall, a top wall and a side wall connected there-between. The elongate frame also comprises a first mounting and a second mounting for respectively fixing at least one light emitter and a touch surface with respect to the frame. The elongate frame also comprises a slot at least partially positioned above the second mounting and the first mounting wherein the slot is arranged to receive an optical component.Type: ApplicationFiled: October 2, 2019Publication date: August 19, 2021Inventors: Patrik Svensson, Tobias Wiesel, Johan Westlund, Håkan Bergström
-
Publication number: 20210173514Abstract: An assembly for holding and controlling curvature of a glass plate for an optical touch sensitive system is described. The assembly comprising a first frame element extending in a first plane and configured to extend at least partially around a panel; at least one second frame element extending in a second plane and forming a support portion for the plate, and at least one spacing element positioned at least partially between the support portion and the first frame element. The spacing element us configured to control a curvature of the first frame element and wherein the at least one second frame element is configured to engage the plate at the support portion, is attached to the first frame element, and is tiltable, by controlling the curvature of the first frame element with said spacing element, to control a curvature of the plate.Type: ApplicationFiled: September 14, 2020Publication date: June 10, 2021Inventors: Aleksander Kocovski, Hakan Bergstrom, Jens Thorvinger
-
Publication number: 20210173515Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: ApplicationFiled: November 23, 2020Publication date: June 10, 2021Inventors: Daniel Skagmo, Robert Ehn, Hâkan Bergström
-
Patent number: 11029783Abstract: An embodiment of the invention provides a touch sensing apparatus, comprising: a light transmissive element (10) that defines a touch surface; a set of emitters (30a) arranged around the periphery of the touch surface to emit beams of light into the light transmissive element, wherein a first portion of the beams (50) of light propagate inside the light transmissive element while illuminating the touch surface such that an object touching the touch surface causes an attenuation of the propagating light, and wherein a second portion of the beams (90) of light pass out of the light transmissive element and are reflected to travel above the touch surface, a set of light detectors (30b) arranged around the periphery of the touch surface to receive light from the set of emitters from the transmissive element and from above the touch surface, wherein each light detector is arranged to receive light from more than one emitter.Type: GrantFiled: October 28, 2019Date of Patent: June 8, 2021Assignee: FlatFrog Laboratories ABInventors: Ola Wassvik, Håkan Bergström, Ivan Karlsson, Thomas Craven-Bartle
-
Publication number: 20210096691Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.Type: ApplicationFiled: August 10, 2020Publication date: April 1, 2021Inventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom