Accession Number : AD0600912

Title :   THE DEVELOPMENT OF A COLORED TELETYPE TAPE DISCRIMINATION SYSTEM,

Corporate Author : SCRIPPS INSTITUTION OF OCEANOGRAPHY SAN DIEGO CALIF VISIBILITY LAB

Personal Author(s) : Ensminger,Richard L.

Report Date : MAR 1963

Pagination or Media Count : 23

Abstract : The Colored Tape Discriminator (CTD) has been designed to operate with the yellow and red tapes as the unclassified and classified tapes, respectively. In practice it is envisioned that the device will be attached to unclassified tape readers. The CTD will render the tape reader operable only under the logical condition that a yellow tape is fed into the reader and there is no failure of any kind in the CTD. Either a circuit or power failure of the presence of a red tape will render the device imoperable. Emphasis is made of the circuit design and construction philosophy adapted. A device has been designed and constructed from materials already at hand in the lab to demonstrate that there is a sufficient spectral difference in the two tapes to serve as a reliable basis for automatic discrimination. No attempt was made to miniaturize the device nor to build in the long term reliability that would be required for continued use. (Author)

Descriptors :   (*TELETYPE SYSTEMS, MONITORS), TAPES, COLORS, COLORIMETRY, PHOTOELECTRIC MATERIALS, PHOTOTUBES, OPTICAL SCANNING, OPTICAL FILTERS, CLASSIFICATION, READING MACHINES

Distribution Statement : APPROVED FOR PUBLIC RELEASE