Table of Contents

Foreword
1 Scope
2 Normative references
3 Abbreviations
4 Basic PALplus system description
  4.1 Introduction
  4.2 Normative features of a PALplus transmission
5 The PALplus signal
  5.1 Input picture signal to the PALplus encoder
  5.2 The encoded composite PALplus signal
6 The PALplus encoding processes
  6.1 Vertical conversion
  6.2 Vertical helper encoding
  6.3 Motion Adaptive Colour Plus
  6.4 PAL encoding
  6.5 Reference signals
  6.6 Signalling
Annex A (normative): Filter and look-up table
        coefficients
    A.1 General rules for filter descriptions
    A.2 Vertical conversion
    A.3 Helper encoding
    A.4 Motion Adaptive Colour Plus
    A.5 PAL encoding
Annex B (informative): Encoder filter plots
Annex C (informative): The PALplus decoder
    C.1 General
    C.2 Overview of the PALplus decoding process
Annex D (informative): Reference PALplus decoder:
        filter and look-up-table coefficients
    D.1 General rules for filter descriptions
    D.2 Vertical conversion
    D.3 Helper decoding
    D.4 Motion Adaptive Colour Plus, decoder
    D.5 PAL decoding
Annex E (informative): Decoder filter plots
Annex F (informative): Receivers for the PALplus system
    F.1 General
    F.2 Receiver IF characteristics
    F.3 Features included in a PALplus receiver
    F.4 Receiver switching time in response to changes
        signalled by the WSS
    F.5 Use of Wide Screen Signalling (WSS)
Annex G (informative): Application of ghost
        cancellation
Annex H (informative): Studio production requirements
    H.1 General
    H.2 Limitations of the composite PALplus signal
    H.3 Camera mode and film mode
    H.4 Programme junctions between transmissions in
        PALplus and PAL
    H.5 Open subtitles and logos
    H.6 Non-PALplus use of Motion Adaptive Colour Plus
History

Abstract

Specifies an enhanced transmission system which allows PAL broadcasters to offer wide-screen pictures in the 16:9 aspect ratio format, maintaining compatibility with existing PAL receivers.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	BROADCAS
Supersedes	PRETS 300 731 : NOV 96