IEC 60856 : 1.0

Table of Contents

Foreword
Preface
Introduction
Section One - General
1 Scope
2 Object
3 Standard atmospheric conditions for testing
Section Two - Disk parameters
4 Mechanical parameters
5 Optical requirements
6 Temperature and humidity requirements
Section Three - Recorded parameters
7 Audio parameters
   7.1 Channel applications
   7.2 Audio subcarrier modulation of main carrier
8 Audio subcarrier frequencies
   8.1 Type of modulation
   8.2 Polarity of modulation
   8.3 Pre-emphasis
   8.4 Audio compression
9 Video parameters
   9.1 Video signal
   9.2 Video signal modulation
10 Vertical interval control and address signals
   10.1 24-bit bi-phase coded signal
Section Four - Operational signals
11 Definition of playback measurement system
   11.1 Optical stylus
   11.2 Measuring set-up
   11.3 General measurement conditions
12 Operational parameters
   12.1 Radial signal
   12.2 Tangential signal
   12.3 High-frequency signal
Figures
Appendix A - List of abbreviations
Appendix B - Audio compression system
Appendix C - Programme status code

Abstract

Applies to pre-recorded optical reflective video discs compatible with 50 Hz-625 lines CCIR monochrome and colour coding PAL systems, and defines those parameters that affect the interchangeability of the disc, excluding limitations of the programming material and source. Serves as a reference for manufacturers intending to make discs or players with the optical system described.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	SC 60B