Accession Number : AD0163621


Title :   Capacitively Coupled Graphic Input System.


Descriptive Note : Patent,


Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C


Personal Author(s) : Ellis,Thomas O. ; Davis,Malcolm R.


Report Date : 02 MAR 1971


Pagination or Media Count : 7


Abstract : The patent describes a graphic input device which includes an electrical tablet having an insulated wire screen in which two sets of parallel wires are disposed at right angles to each other and a stylus capacitively coupled to the tablet. The tablet wires are cyclically energized according to a binary coding pattern by a set of capacitively coupled encoding pads.


Descriptors :   (*INPUT OUTPUT DEVICES, *PATENTS), GRAPHICS, COMPUTER PROGRAMMING


Distribution Statement : APPROVED FOR PUBLIC RELEASE