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:
Apr. 26, 1988
Filed:
Feb. 08, 1985
Applicant:
Inventor:
Kenneth A Brown, Idyllwild, CA (US);
Assignee:
ITT Gilfillan, Van Nuys, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340712 ; 3403 / ; 340760 ; 340781 ;
Abstract
A touch-sensitive device for computer data entry from the presentation on a scanned, thin-film, electroluminescent display. A transparent conductive film is suspended over the display face. Touching that film at a predetermined point in the display capacitively couples scanning voltages (which are time-base synchronous and related to the touched point) to an amplifier and then to a utilization device (computer, for example).