Patent
Absolute optical position determination
Reads0
Chats0
TLDR
In this article, the authors proposed the use of a data surface (e.g., paper) formatted with a position-related coding (figure 1a) for indicating X-Y coordinates capable of reflecting a frequency of light.Abstract:
The present invention is a form of a digitizer and absolute position determination device for indicating the instantaneous position and movement of a stylus (8) on a surface. It proposes the use of a data surface (e.g., paper) formatted with a position-related coding (figure 1a) for indicating X-Y coordinates capable of reflecting a frequency of light. The stylus (8) comprising a writing element (9) has a light source (17) of a frequency for illuminating the position-related coding (figure 1a). The frequency of light is absorbed by the data surface but reflected by the position-related coding (figure 1a) onto a charge-coupled device (CCD) (13) located within the stylus (8). The coordinate information from the CCD (13) is sent to a computer (16) for processing and finally the desired information output to the user.read more
Citations
More filters
Patent
Head mounted display with wave front modulator
Paul Lapstun,Kia Silverbrook +1 more
TL;DR: In this article, a controller uses wave front modulation to match the curvature of the wave fronts of light reflected from the display device to the user's eyes with the curvatures of the waves that would be transmitted through the device display if the virtual imagery were situated at a predetermined position relative to the surface, such that the user sees the virtual images at the predetermined position regardless of changes in position of the users' eyes with respect to the see-through display.
Patent
Mobile phone with interactive printer
TL;DR: In this article, a mobile telephone is used as a base station for a machine readable code sensor pen (62) to enable connection of the pen with a computer system, and the telephone may also include a sensor (80) for sensing the machine-readable code and/or a printer (12) for mobile printing of coded substrates.
Patent
Augmented reality device for presenting virtual imagery registered to a viewed surface
Paul Lapstun,Kia Silverbrook +1 more
TL;DR: In this article, a controller modulates the wavefront curvature of light emitted for each pixel so that the user can see the virtual imagery at a predetermined position relative to the surface regardless of changes in position of the user's eyes with respect to the display device.
Patent
Method and system for object selection
Kia Silverbrook,Paul Lapstun +1 more
TL;DR: In this paper, the authors present a method for enabling association of objects in a computer system, the method including the steps of: providing a user with at least one first form printable on a first surface to provide to a user viewable information associated with one or more objects; providing the user with an amended version of said at least first form including a representation of said selected objects; interpreting, in the computer system and from the indicating data, if the movement of the sensing device relative to the first surface is in relation to selection of said objects of said first form, and
Patent
Stroke localization and binding to electronic document
TL;DR: A method and apparatus for capturing information encoded within a surface, such as location information or document metadata, and associating the information with a document is described in this article, where the captured information may be obtained by a camera associated with a pointing or writing device having a camera.
References
More filters
Patent
Optical stylus and passive digitizing tablet data input system
William E. Bennett,Stephen J. Boies,Anthony Robin Davies,Karl-Friedrich Etzold,Todd Kanner Rodgers +4 more
TL;DR: In this paper, a stylus and table X-Y data input system for a video display system is presented, where absolute positional information is encoded in binary form in the tablet in such a fashion that the pen position upon the tablet is automatically determinable by illuminating a particular area of the tablet and reading off the digitized XY coordinate data stored therein.
Patent
Graphical data apparatus
TL;DR: In this paper, a generally flat tablet is provided, the tablet being formed of a solid acoustically-conductive material and a movable element, such as a stylus, is adapted to be manually movable over the tablet surface, having a tapered tip which contacts the surface of the tablet.
Patent
Optical encoding method and device
TL;DR: An optical encoding means and device for magnifying, condensing, and encoding displacement information relative to an compound grid image sensed by a Photo Sensor Array is described in this paper. But it does not specify a specific grid Pad defined by vertical-horizontal coordinate lines along a plane.
Patent
Interface circuitry for interconnecting touch tablet with a computer interface
TL;DR: In this article, the internal capacitor of the computer interface is rapidly charged above the threshold level to provide positional data from the external source to the computer interfaces at the time of crossover, and the acquired voltage is compared with a ramped voltage.
Patent
Coordinate inputting apparatus using multiple sensors
TL;DR: In this article, a coordinate inputting apparatus consisting of an information plate on which patterns such as white circles and black regions having different reflectances are provided like a matrix is described.