Accession Number : AD0618300

Title :   INVESTIGATION OF AN ELECTROLUMINESCENT SYMBOLIC INDICATOR.

Descriptive Note : Final rept. for 29 Jan 64-29 Jan 65,

Corporate Author : GENERAL PRECISION INC LITTLE FALLS N J KEARFOTT DIV

Personal Author(s) : Levy,Donald ; russo,A.

Report Date : JUN 1965

Pagination or Media Count : 64

Abstract : The results of a study, design and breadboard construction of a segmented Electroluminescent (EL) Symbolic Indicator are described. The equipment accepts a parallel 6-bit binary-coded input and converts the data into a symbolic readout on a 23-segment EL panel in response to an ADDRESS command pulse. Display capabilities include all the alpha-numerics, minus sign, plus sign and left and right slant bars. Data storage is implemented at the 23 segment-switching command lines so that a single code converter may be time-shared among many output display modules. The breadboard model of the EL Symbolic Indicator consists of two modules: an output display module and a multiplexed code converter. The specifications for the breadboard model are given. The design and construction of the EL Symbolic Indicator using low-cost conventional components is described. Microminiaturization of the equipment and one possible approach to mechanization using standard off-the-shelf integrated circuit elements are considered. (Author)

Descriptors :   (*DISPLAY SYSTEMS, ELECTROLUMINESCENCE), (*DATA STORAGE SYSTEMS, MICROELECTRONICS), COMPUTER LOGIC, SWITCHING CIRCUITS, SEMICONDUCTOR DEVICES

Distribution Statement : APPROVED FOR PUBLIC RELEASE