Abstract
The source coding scheme for the experimental research prototype that is currently being designed to demonstrate the digital coding of high-definition television (HDTV) for transport within the proposed broadband integrated services digital network (ISDN) fiber optic network is described. The network interface will be used on a packet-based asynchronous transfer mode (ATM) technology. To maximize coding efficiency, run-length coding and variable word length coding are also incorporated in the system. The scheme uses multiple block-size Hadamard transform coding that can be implemented using a set of two-tap filters in a simple subband structure. In spite of the low hardware complexity, which is of dominant importance in the overall system performance, high coding efficiency is obtained. The major features and advantages of this scheme are outlined. >
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