Digital methods in television

Abstract

This report indicates some of the advantages to be gained by converting television waveforms to trains of binary digits before signal processing operations such as standards conversion are carried out. These operations could then be effected by digital storage and logic circuits, the main advantages being reliability and freedom from distortion.

A brief description is given of possible methods of performing video/digital and digital/video conversion and the ways in which various signal processing operations could be carried out using digital signals are discussed.

The report concludes that the advances in digital techniques in other fields will soon reach the point where the speed and capacity required for television applications are attained. There will be problems in applying these techniques to television and it is these aspects that Research Department should investigate.

Also see:

BBC R&D - 50 Years of Digital TV!

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