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
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TLDR
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.Abstract:
A stylus and table X-Y data input system for a video display system. The pen includes an optical styling having a suitable pickup mechanism and the tablet is passive in nature and provides direct digitized data readout. 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 X-Y coordinate data stored therein. The pen and supporting hardware/software are rotationally insensitive so that the pen may be held in any desired position comfortable to a user. The system provides greatly improved resolution, sampling rate accuracy and general robustness particularly for such applications as text recognition as well as a wide variety of other graphical input uses.read more
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Networked computer system with wireless pen interface
Paul Lapstun,Kia Silverbrook +1 more
TL;DR: In this paper, a networked computer system includes a printer configured to print media bearing visible graphic data and invisible coded data tags and receive transmitted sensed data associated with the data tags.
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TL;DR: In this article, a method of enabling a user to search stored information via an interactive search request form is provided, which includes a search field for inputting a handwritten search request and coded data indicative of an identity of the form and of a plurality of locations within the search field.
Patent
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TL;DR: In this paper, a stroke sequence comprised of a sequence of strokes is obtained, the strokes are segmented into sub-rokes by applying a stroke segmentation algorithm, angular differences between neighbouring groups of substrokes, in the sequence of subrokes are calculated, and the positions of the extrema of the angular differences are determined.
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Kia Silverbrook,Paul Lapstun +1 more
TL;DR: In this article, the authors propose a persistent storage of system information that is decoupled from fee-earning activities in the network, allowing a profitable role for a participant who is purely a provider of persistent storage.
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System for controlling movement of a cursor on a display device
TL;DR: In this paper, a system for controlling the movement of a cursor on a display device is described, where a substrate having a position-coding pattern disposed on or in a surface thereof is assumed to have an image sensor for optically imaging the position coding pattern and a processor configured for generating absolute motion data by determining a plurality of absolute positions of the sensing device relative to the surface using the imaged position- coding pattern.
References
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Patent
Dynamically variable machine readable binary code and method for reading and producing thereof
TL;DR: In this paper, a machine readable binary code which is dynamically variable in size, format and density of information is provided, where the binary code is formed as a matrix having a perimeter and data contained therein.
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Code and reading system
TL;DR: In this article, a code reading system is disclosed utilizing a novel, multicolored, densely packed code read by a scanner which is placed over the code and held in place while the scanner performs its reading function.
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Method and apparatus for capturing information in drawing or writing
TL;DR: In this article, the authors used the Baum-Welch algorithm to calculate the probability that the vertical and horizontal components of the pen tip and the contacts between pen tip with the writing area could have been produced from the hidden Markov model.
Patent
Memory card comprising an optical memory disc and microelectronic memory component, and apparatus for transferring information to and from such card
TL;DR: In this article, the authors present an approach for transferring data and other information between a data processing unit and a rectangular memory card which includes an optically readable data memory unit having a succession of concentric data storage tracks thereon, the card also including at least one microelectronic component which stores further information.
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Optical cursor control device
TL;DR: In this article, an optical cursor control device or "optical mouse" is disclosed for use with an interactive display oriented computer system to provide movement for a visible cursor from position to position on a display screen of such a system.