Line of sight measuring system
First Claim
1. A cursor control system for measuring movements including linear movements and rotational movements of object means placeable in a predetermined space in front of a display means, said system displaying said movements in the form of a display indicative of the line-of-sight between said object means and a prescribed target, comprising:
- (a) light source means;
(b) position sensing detector means adjacent said light source means;
(c) focusing reflector means attached to said object means;
(d) control means for controlling activation of said light source means, for receiving signals from said position sensing detector means and for calculating said line-of-sight; and
(e) said display means connected to said control means for displaying information indicative of changes in said light-of-sight in the form of changes in the position of a display cursor.
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Accused Products
Abstract
The present invention relates to a line-of-sight measuring system. The system comprises a passive optical pointing device which measures the relative change in line-of-sight of a focusing reflector attached to a target such as the operator of the device, located within a prescribed three dimensional space. The system utilizes a source of light adjacent a position sensing detector which source of light causes light to be reflected off the focusing reflector amd back to the position sensing detector. In this way, the line-of-sight between the object within the prescribed space and a particular location on a two dimensional screen positioned adjacent the prescribed space may be determined with great accuracy. The present invention also includes the electronic circuitry which interfaces the present invention with a computer such as a personal computer including an input keyboard and a display screen. Other applications of the present invention are also disclosed herein.
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Citations
29 Claims
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1. A cursor control system for measuring movements including linear movements and rotational movements of object means placeable in a predetermined space in front of a display means, said system displaying said movements in the form of a display indicative of the line-of-sight between said object means and a prescribed target, comprising:
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(a) light source means; (b) position sensing detector means adjacent said light source means; (c) focusing reflector means attached to said object means; (d) control means for controlling activation of said light source means, for receiving signals from said position sensing detector means and for calculating said line-of-sight; and (e) said display means connected to said control means for displaying information indicative of changes in said light-of-sight in the form of changes in the position of a display cursor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for controlling a cursor for measuring linear and rotational movements of object means placeable in a predetermined space in front of a display means, the display of said display means being indicative of the line of sight between said object means and a prescribed target, including the steps of:
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(a) locating a position sensing detector adjacent;
said space above said display means;(b) locating a source of light adjacent said position sensing detector; (c) attaching a focusing reflector to said object means; (d) locating said object means in said space; (e) activating said source of light, light from said source of light being focused by said focusing reflector and being reflected back toward said position sensing detector; (f) receiving said light at said position sensing detector at a location thereon corresponding to said line-of-sight; (g) calculating, with a control means, said line-of-sight from data received from said position sensing detector related to said location, said calculating step including the substep of measuring said linear and rotational movements; and (h) displaying said line-of-sight in the form of movements of a display cursor of said display means. - View Dependent Claims (26, 27, 28, 29)
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Specification