DEVELOPMENT OF A COLORED TELETYPE TAPE DISCRIMINATION SYSTEM.
Abstract
In some types of Navy teletype communications installations, messages in the form of paper tapes are fed into one tape reader for transmission if unclassified material, and into a separate tape reader for encoding and transmission if classified. The Bureau of Ships is investigating a system of color coding of paper tapes as a technique for safeguarding against unintentional transmission of classified information on the unclassified equipment. The Visibility Laboratory previously constructed a laboratory breadboard of a photoelectric apparatus capable of sensing the color of the paper tape and disabling the tape reader in the presence of tape of the wrong color (AD-600 912). The present report describes the design and construction of an operational breadboard unit for mounting on the AN/UGC-6 teletypewriter.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0619213
Entities
People
- R. L. Ensminger
Organizations
- Scripps Institution of Oceanography