TECHNICAL ISO/IEC TR REPORT 23091-4 Third edition 2021-05 Information technology Coding- independent code points - Part 4: Usage of video signal type code points Reference number IEC ISO/IEC TR 23091-4:2021(E) Tso @IS0/IEC2021 IS0/IEC TR 23091-4:2021(E) COPYRIGHT PROTECTED DOCUMENT @IS0/IEC2021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either Iso at the address below or ISO's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Email: [email protected] Website:www.iso.org Published in Switzerland ii @ IS0/IEC 2021 - All rights reserved