INVESTIGATION OF AN ELECTROLUMINESCENT SYMBOLIC INDICATOR.

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)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1965
Accession Number
AD0618300

Entities

People

  • Antonio Russo
  • Donald Levy

Tags

DTIC Thesaurus Topics

  • Breadboard Models
  • Circuits
  • Construction
  • Converters
  • Data Storage Systems
  • Electrical Equipment
  • Electronic Equipment
  • Indicators
  • Integrated Circuits
  • Mechanization
  • Microminiaturization
  • Models
  • Navigational Equipment
  • Segmented
  • Specifications
  • Standards

Readers

  • Human-Computer Interaction (HCI).
  • Radio communications and signal processing.
  • Software Engineering