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:
Mar. 23, 1999
Filed:
Feb. 20, 1997
William A Gibson, Knoxville, TN (US);
Other;
Abstract
A touch screen system includes a touch screen having a surface which is adapted to be touched by a user, a resistive substrate which spans the screen and has two opposite boundaries, and a pair of electrodes which are capacitively coupled to the resistive substrate adjacent the two opposite boundaries thereof. The electrodes are adapted to be electrically stimulated from a source to induce reference electrical parameters within the system. Appropriate components are provided for determining changes in electrical parameters at the electrodes as a result of the touch of a location of the screen by the user, and associated componentry is also provided for generating a signal corresponding to the location of the screen touched by the user. The touch screen of the system may be associated with the screen of a CRT for use or placed upon a tabletop for use as a cursor control pad or a keyboard.