DIGITAL SATELLITE BROADCASTING RECEIVER, DEINTERLEAVE METHOD AND INVERSE ENERGY DISPERSAL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To perform deinterleave with memory capacity for one super frame. SOLUTION: This deinterleaver is provided between a Virterbi decoding circuit and an RS decoding circuit and performs block deinterleave for the unit of m×n data. The deinterleaver sets logical addresses from O to (m×n-1) to an interleave memory and writes i-th data of the next super frame to the logical address, where i-th data of a certain interleave block are read out. The deinterleaver calculates the logical address of i-th data to be outputted from a k-th interleave block on the basis of a function fk(i)=f(fk-1(i)).