The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 1995
Filed:
May. 05, 1992
David M Hyslop, Spartanburg, SC (US);
Milliken Research Corporation, Spartanburg, SC (US);
Abstract
A method and apparatus to input two dimensional points in space into a computer. Such points in space reside within the field of view of a video camera, which is suitably connected to a computer. The operator aims a focus of light at the point whose coordinates are desired and depresses a trigger button mounted proximate to the light source. The trigger actuation signals the computer to capture a frame of video information representing the field of view of the camera, and with appropriate software, identifies the picture element within that frame that has the brightest value by comparison with the field of view without the focus of light. This picture element will be the one associated with the point within the field of view upon which the spot of light impinged at the time the trigger button was depressed. The actual digital coordinates of the point are identified and then calculated based upon a previously established relationship between the video frame and the camera field of view.