Patent ID: 8036292

Claim:
A method of segmented frame synchronization for Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) and Integrated Services Digital Broadcasting-Terrestrial Sound Broadcasting (ISDB-TSB) systems, said method comprising: receiving a wireless digital signal comprising an Orthogonal Frequency Division Multiplexing (OFDM) frame in a receiver, wherein said OFDM frame comprises OFDM symbols, and wherein said receiver comprises a time de-interleaver, a bit de-interleaver, and a descrambler; filling memory of said time de-interleaver and bit de-interleaver by said received wireless digital signal; determining an OFDM segmented frame boundary when the said memory of said time de-interleaver and bit de-interleaver are full; decoding bits from said time de-interleaver and said bit de-interleaver using a Viterbi decoder; outputting the Viterbi decoding bits from said time de-interleaver and said bit de-interleaver when said OFDM segmented frame boundary is detected; obtaining a segmented multiplexing frame boundary upon receipt of a first bit from said Viterbi decoder; and synchronizing the OFDM frame based on the segmented multiplexing frame boundary.