Display-integrated stylus detection system
First Claim
Patent Images
1. A system for sensing the position of a stylus proximate a display device employing a matrix of display electrodes which generate display electrode signals, wherein the position sensing and display functions are performed simultaneously, comprising:
- means for generating in the stylus positioning signals;
means for coupling said positioning signals to the display electrodes and for superimposing said positioning signals onto the display electrode signals;
means for sensing said positioning signals from the display electrodes; and
means, responsive to said means for sensing, for resolving the position of the stylus in relation to the display electrodes.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method of measuring the position of a stylus relative to a computer information display device. The position is used to generate coordinates for the purpose of interacting with the computer. Applications may include pointing to icons on the display, picking menu items, editing of computer generated images, and feedback for input of hand drawn characters and graphics. The system uses the electrodes of the display device as part of the positioning circuit.
217 Citations
4 Claims
-
1. A system for sensing the position of a stylus proximate a display device employing a matrix of display electrodes which generate display electrode signals, wherein the position sensing and display functions are performed simultaneously, comprising:
-
means for generating in the stylus positioning signals; means for coupling said positioning signals to the display electrodes and for superimposing said positioning signals onto the display electrode signals; means for sensing said positioning signals from the display electrodes; and means, responsive to said means for sensing, for resolving the position of the stylus in relation to the display electrodes. - View Dependent Claims (2, 3, 4)
-
Specification