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An experimental half-inch tape Hi-Vision VCR was developed. This paper reports on its signal processing system. We begin by explaining the intrafield fixed-length DCT algorithm, which compresses Hi-Vision data at 594 Mbps to 125 Mbps. Next we describe the error-correction system, 1,7 codes, and PR (1,1) and 3-level 4-state Viterbi decoding. The experimental system has two heads for each of two channels,...
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