Accession Number : ADD004948
Title : Solid State LED Display Device.
Descriptive Note : Patent Applicaton,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Klees,George N
Report Date : 08 Sep 1977
Pagination or Media Count : 15
Abstract : A visual display system constructed to provide increased resolution of a digital signal representing a measured analog value is described. An analog signal is converted to a digital number represented by a group of most significant bits and lesser significant bits. Each group of digits is stored in a digital storage circuit with the group of most significant bits additionally being stored in a preset counting circuit and increased in value by a logical 1. The outputs of the storage and counting circuits holding the group of most significant bits are then coupled to energize elements of a visual display for a time proportional to the digital number represented by the group of lesser significant bits. The magnitude of the analog signal can then be determined by observing the position and relative length of time that any of two elements of the display are energized over a sampling period.
Descriptors : *Patent applications, *Display systems, Light emitting diodes, Solid state electronics
Subject Categories : Electrooptical and Optoelectronic Devices
Distribution Statement : APPROVED FOR PUBLIC RELEASE