Patent application number | Description | Published |
20090146973 | DUAL MODE TOUCH SYSTEMS - An apparatus for detecting a pointer includes a waveguide and a touch surface over the waveguide on which pointer contacts are to be made. At least one reflecting device extends along a first side of the waveguide and touch surface. The reflecting device defines an optical path between the interior of the waveguide and the region of interest above the touch surface. At least one imaging device looks across the touch surface and into the waveguide. The imaging device captures images of the region of interest and within the waveguide including reflections from the reflecting device. | 06-11-2009 |
20100079385 | METHOD FOR CALIBRATING AN INTERACTIVE INPUT SYSTEM AND INTERACTIVE INPUT SYSTEM EXECUTING THE CALIBRATION METHOD - A method of calibrating an interactive input system comprises receiving images of a calibration video presented on a touch panel of the interactive input system. A calibration image is created based on the received images, and features are located in the calibration image. A transformation between the touch panel and the received images is determined based on the located features and corresponding features in the calibration video. | 04-01-2010 |
20100079409 | TOUCH PANEL FOR AN INTERACTIVE INPUT SYSTEM, AND INTERACTIVE INPUT SYSTEM INCORPORATING THE TOUCH PANEL - A touch panel for an interactive input system and interactive input system incorporating the touch panel is provided. The touch panel includes an optical waveguide layer and a resilient diffusion layer. The resilient diffusion layer is against the optical waveguide layer and causes light traveling within the optical waveguide layer to escape only when compressed against the optical waveguide layer at one or more touch points. | 04-01-2010 |
20110032215 | INTERACTIVE INPUT SYSTEM AND COMPONENTS THEREFOR - A display panel for an interactive input system comprises first and second touch surfaces on opposite major sides thereof and a touch detection arrangement to detect touch input on one or both of the touch surfaces. | 02-10-2011 |
20110128218 | INTERACTIVE INPUT SYSTEM AND BEZEL THEREFOR - An interactive input system comprises at least one imaging device having a field of view looking into a region of interest. At least one radiation source emits radiation into the region of interest. A pliable bezel at least partially surrounds the region of interest. The pliable bezel has a reflective surface in the field of view of said at least one imaging device. | 06-02-2011 |
20110128219 | INTERACTIVE INPUT SYSTEM AND BEZEL THEREFOR - An interactive input system comprises at least one imaging device having a field of view looking into a region of interest. At least one radiation source emits radiation into the region of interest. A pliable bezel at least partially surrounds the region of interest. The pliable bezel has a reflective surface in the field of view of said at least one imaging device. | 06-02-2011 |
20120274765 | APPARATUS FOR DETERMINING THE LOCATION OF A POINTER WITHIN A REGION OF INTEREST - An apparatus for detecting a pointer within a region of interest comprises a first reflective element extending along a first side of the region of interest and reflecting light towards the region of interest. The first reflective element comprises at least two generally parallel bands thereon, the bands at least comprising a retro-reflective band and a reflective band. A second reflective element extends along a second side of the region of interest and reflects light towards the region of interest, the second side being joined to the first side to define a first corner. The second reflecting element comprises at least two generally parallel bands thereon, the bands at least comprising a retro-reflective band and a reflective band. At least one imaging device captures images of the region of interest including reflections from the reflective and retro-reflective bands of the first and second reflective elements. At least one illumination source is positioned adjacent to the at least one imaging device and directs light across the region of interest towards the first and second reflective elements. | 11-01-2012 |
20130120316 | DUAL MODE TOUCH SYSTEMS - An apparatus for detecting a pointer includes a waveguide and a touch surface over the waveguide on which pointer contacts are to be made. At least one reflecting device extends along a first side of the waveguide and touch surface. The reflecting device defines an optical path between the interior of the waveguide and the region of interest above the touch surface. At least one imaging device looks across the touch surface and into the waveguide. The imaging device captures images of the region of interest and within the waveguide including reflections from the reflecting device. | 05-16-2013 |