Optical fiber digital picture code and supervisory signal transmission system

Abstract

This paper describes a digital signal transmission system using nine optical fibers for the picture code of 5 bits and supervisory signal of 3 bits, and using one optical fiber for the clock at 14.32 MHz, which is built based on the conventional digital TV signal transmission system consisting of a picture code of 8 bits with the clock at 14.32 MHz. Since the picture code and supervisory signals are transmitted at the same time, the system can be used for industrial applications in an inferior environment. Even if the environment is dangerous for human beings, the system can be operated satisfactorily. The experimental system succeeded in transmitting the TV signal, and the picture quality was almost the same as that operating at 8 quantizational bits. Since the TV and supervisory signals are digitized in the same sequence, these signals are suitable for computer processing.