A Study on a HDTV CODEC and ATM Interface for Broadband-ISDN

Abstract

This paper describes an experimental hardware implementation of an STM-1-rate (155.52 Mb/s) CBR-mode HDTV CODEC for ATM transmission in B-ISDN. This CODEC has a data-compression part with a block-adaptive DCT algorithm and has an ATM transmission interface with cell loss compensation using layered-coding and interleaving. Three types of gate-array LSIs are also devoloped for compact desktop-size hardware.
Experimental transmission using an ATM switch confirms that the CODEC achieves picture quality sufficient for secondary distribution in the ATM environment of Broadband-ISDN