Topic
Stylus
About: Stylus is a research topic. Over the lifetime, 8009 publications have been published within this topic receiving 111335 citations.
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Patent•
18 Dec 1995
TL;DR: 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.
1,229 citations
Patent•
IBM1
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.
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.
1,067 citations
Patent•
17 Oct 1994
TL;DR: In this paper, a touch-sensor pad with a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads is used to produce paint-like strokes on a display associated with the touch sensor pad.
Abstract: A proximity sensor system includes a touch-sensor pad with a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in both the X and Y directions of the matrix due to the approach of an object is converted to a set of voltages in the X and Y directions. These voltages are processed by circuitry to develop electrical signals representative of the centroid of the profile of the object, i.e, its position in the X and Y dimensions. Noise reduction and background level setting techniques inherently available in the architecture are employed. A conductive paintbrush-type stylus is used to produce paint-like strokes on a display associated with the touch-sensor pad.
1,066 citations
Patent•
18 Dec 1995
TL;DR: 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.
991 citations
Patent•
16 Jan 2004
TL;DR: In this article, a method and system for continuous stroke word-based text input, having a virtual keyboard (2104) appearing on a touch sensitive screen (2102), was presented.
Abstract: A method and system (2100) for continuous stroke word-based text input, having a virtual keyboard (2104) appearing on a touch sensitive screen (2102). The present invention allows a user to use the virtual keyboard to quickly enter words by drawing a continuous line that passes through or near the keys of each letter in a word in sequence without lifting the stylus. The user traces an input pattern (2200) for a word by contacting the virtual keyboard on or near the key of the first letter of the word, then tracing through each letter in sequence, lifting the stylus from the touch sensitive screen upon reaching the last letter. The present invention then analyzes each input pattern and presents a list of one or more possible words based on the input pattern, for selection by the user.
840 citations