SMPTE Type D-1 Digital Television Recorder — Error Control

The D-1 cassette digital television recorder uses one of the highest recording densities found in magnetic recording formats; compare for example the 5 inch single density disc recording approximately 270Kb/inch² with the D1 format of nearly 30Mb/inch². This 100:1 increase in density is essential to keep the cassette size to a practical level but, in exchange, each recorded bit is potentially more prone to errors on replay. Fortunately for those working in the field of information engineering there are a number of techniques and rules which, properly applied, can rectify these difficult situations. In the field of digital video recording, we can usefully apply three basic techniques; (1) source encoding, (2) channel encoding, and (3) error control, to optimise the recording strategy.

Published

1986-02

Content type

Original Research

DOI

10.5594/M00772

ISBN

978-1-61482-915-7