Compatible enhancement of terrestrial PAL TV transmission

Author

Drewery, J.O. ; Sandbank, C.P. ; Weston, M. ; Black, R.I.

Author_Institution

BBC, London, UK

fYear

1990

fDate

21-25 Sep 1990

Firstpage

60

Lastpage

64

Abstract

The BBC has been investigating the possibilities for the compatible enhancement of terrestrial PAL transmission towards high definition television. The investigation is essentially divided into three tasks: (1) minimising the artifacts introduced by composite coding to give the appearance of a component picture; (2) devising means of conveying additional information which will enable suitably equipped receivers to reproduce a picture subjectively as close as possible to an HDTV studio source e.g. 1250 lines interlaced, 50 Hz field frequency, 1920 pixels per line, and 16:9 aspect ratio; (3) carrying out (1) and (2) within the constraints of the current UHF frequency plan and in a way compatible with existing PAL receivers. The authors discuss the techniques involved in the investigation and the results obtained

Keywords

colour television; high definition television; television broadcasting; BBC; HDTV studio source; UHF frequency; colour TV broadcasting; compatible enhancement; composite coding; high definition television; terrestrial PAL TV transmission;

fLanguage

English

Publisher

iet

Conference_Titel

Broadcasting Convention, 1990. IBC 1990., International

Conference_Location

Brighton

Type

conf

Filename

114432