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Flatfrog Laboratories Ab patents


Recent patent applications related to Flatfrog Laboratories Ab. Flatfrog Laboratories Ab is listed as an Agent/Assignee. Note: Flatfrog Laboratories Ab may have other listings under different names/spellings. We're not affiliated with Flatfrog Laboratories Ab, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "F" | Flatfrog Laboratories Ab-related inventors


Pen differentiation for touch displays

An optical ir touch sensing apparatus can determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor can operate an image reconstruction algorithm on at least part of the thus-generated transmission values and determine a position of a touching object on the touch surface, an attenuation value corresponding to the attenuation of the light resulting from the object touching the touch surface, and an occlusion compensation value for compensating the occlusion affect from other objects on the touch surface. ... Flatfrog Laboratories Ab

Object characterisation for touch displays

An optical ir touch sensing apparatus configured to determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor is then configured to process the transmission values to determine a region around the object reference point on the touch surface and a set of light paths intersecting the region. ... Flatfrog Laboratories Ab

Eraser for touch displays

An optical ir touch sensing apparatus configured to determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor is then configured to process the transmission values to determine an object reference point on the touch surface where the light is attenuated or occluded by an object and determine, from a set of light paths unaffected by an object, a set of object boundary light paths comprising one or more light paths passing closest to the object reference point. ... Flatfrog Laboratories Ab

Touch determination by tomographic reconstruction

A touch-sensitive apparatus comprises a panel configured to conduct signals from a plurality of peripheral incoupling points to a plurality of peripheral outcoupling points. Actual detection lines are defined between pairs of incoupling and outcoupling points to extend across a surface portion of the panel. ... Flatfrog Laboratories Ab

Partial detect mode

The disclosure relates to a touch sensitive system including a touch surface, a plurality of emitters that emit light, a plurality of detectors that detect the emitted light, a plurality of distributed controllers each can control operation of a segment of emitters and detectors, a main controller that can control the distributed controllers. The touch sensitive system can set in a partial detect mode in which mode a first of the distributed controllers can be active and control a first emitter to emit light in a partial region of the panel coincident with a partial area of the touch surface. ... Flatfrog Laboratories Ab

Spatial resolution in touch displays

A touch-sensitive apparatus comprises a first subset of components on a first end of the touch surface, and a second subset of components on a second end which is opposite to and parallel with the first end. The components include emitters and detectors, each emitter being operable for propagating a diverging energy beam (e.g. ... Flatfrog Laboratories Ab

Enhanced interaction touch system

A touch-sensitive apparatus includes an touch sensing part which operates a touch sensor arrangement to provide signal data representing a touch within a touch-sensing region on a front surface of a light transmissive panel; the touch-sensitive apparatus further includes a computer vision system part which operates a camera system to image a scene located externally of the touch-sensitive apparatus, and operates a computer vision controller to detect, based on image data generated by the camera system, at least one object within the scene. The touch-sensitive apparatus enables user interaction by touch control, gesture control and hover control.. ... Flatfrog Laboratories Ab

Optical component for light coupling

The invention provides an optical component for transferring light between an opto-electronic device and a light transmissive panel which defines two opposing boundary surfaces, the optical component having a shape formed from a geometric shape having a base surface, a lateral front surface and an axis, wherein the geometric shape is truncated by a plane intersecting the front surface, the base surface, and the axis, forming a back surface. The base surface is configured for mounting the optical component to the light transmissive panel and for coupling light into the light transmissive panel. ... Flatfrog Laboratories Ab

Touch determination with improved detection of weak interactions

Touch sensitivity is enabled using a touch system that comprises a panel configured to conduct signals along detection lines across a touch surface. A signal processor obtains observed values for the detection lines, and identifies an interaction pattern on the touch surface as a solution to a function that comprises an aggregation of differences, for each detection line, between the observed value and a projected value, which is given by a projection function that defines a functional relation between the interaction pattern and the projected value for each detection line. ... Flatfrog Laboratories Ab

Dynamic touch quarantine frames

A touch system is described having a method of determining touch of one or more objects on a touch surface of a touch-sensitive apparatus, wherein the method operates in a time sequence of frames, each frame comprising the steps of: for a current frame, processing an output signal of the touch sensitive apparatus to generate one or more touch traces, each touch trace having one or more characteristics; and outputting a confirmed touch signal for each touch trace having a touch trace matching at least one of said one or more characteristics in a first number of frames preceding the current frame, wherein the first number of frames is determined in dependence on said one or more characteristics.. . ... Flatfrog Laboratories Ab

Data processing in relation to a multi-touch sensing apparatus

A device obtains a signal representative of objects on a touch surface of a multi-touch sensing apparatus and executes a method for extracting touch data from the signal. The method operates in a sequence of detection frames. ... Flatfrog Laboratories Ab

Touch determination with interaction compensation

A device implements a data processing method for an optical ftir-based touch system. The touch system defines detection lines across a surface portion of a panel by propagating light inside the panel from a plurality of incoupling points to a plurality of outcoupling points, such that each location on the surface portion is illuminated by incident light rays. ... Flatfrog Laboratories Ab

Touch-sensitive apparatus with improved spatial resolution

A touch-sensitive apparatus comprises a first subset of components on a first end of the touch surface, and a second subset of components on a second end which is opposite to and parallel with the first end. The components include emitters and detectors, each emitter being operable for propagating a diverging energy beam (e.g. ... Flatfrog Laboratories Ab

Performance monitoring and correction in a touch-sensitive apparatus

Touch sensitivity is enabled using a touch system that comprises a panel configured to conduct signals, along detection lines across a touch surface. A signal processor operates in a sequence of repetitions to: generate data samples that represent detected signal energy on the actual detection lines; generate based on the data samples, an interpolated sinogram comprising interpolation samples that represent fictitious detection lines which have a desired location on the touch surface; and reconstruct a signal interaction pattern for the touch surface based on the interpolated sinogram. ... Flatfrog Laboratories Ab

04/27/17 / #20170115235

Detection of surface contamination

A device implements a method for detecting contamination of an ftir-based panel. The apparatus generates projection signals representing detection lines that have propagated on a plurality of propagation paths by total internal reflection (tir) inside a transmissive panel such that contamination on the panel surface causes attenuation (frustration) of at least one of the projection signals. ... Flatfrog Laboratories Ab

04/13/17 / #20170102827

Touch determination by tomographic reconstruction

A touch-sensitive apparatus comprises a panel configured to conduct signals from a plurality of peripheral incoupling points to a plurality of peripheral outcoupling points. Actual detection lines are defined between pairs of incoupling and outcoupling points to extend across a surface portion of the panel. ... Flatfrog Laboratories Ab

03/30/17 / #20170090090

Optical incoupling for touch-sensitive systems

A touch-sensitive apparatus comprises a light transmissive panel (1), an illumination arrangement and a detection arrangement. The illumination arrangement is configured to couple light into the panel (1) via an incoupling site (5b) such that the light propagates by total internal reflection (tir) in opposite top and bottom surfaces (4, 5) of the panel and such that an object touching the top or bottom surface (4, 5) causes a change in the propagating light. ... Flatfrog Laboratories Ab

01/12/17 / #20170010688

Touch sensing apparatus and method of operating the same

A touch sensing apparatus includes a group of emitters arranged to emit light to illuminate at least part of the touch surface, a light detector arranged to receive light from the group of emitters, and a processing element. Each emitter is controlled to transmit a code by way of the emitted light such that the code identifies the respective emitter. ... Flatfrog Laboratories Ab








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