Patent ID: 7225388

Claim:
An error-correction decoding method for performing, at a receiving end, error-correction decoding on a coded audio signal, which has been subjected to coding in which error correction codes for correcting a transmission error are added to a digital audio signal and further subjected to interleaving before transmitting a digital video signal and the coded audio signal from the transmitting end to the receiving end through a digital interface, the error-correction decoding method comprising: receiving the coded audio signal and the digital video signal through the digital interface; dividing a continuous sequence of bits of the received coded audio signal sequentially, bit by bit, and combining the divided bits into two sample blocks of the received coded audio signal; detecting whether an error has occurred within each of the sample blocks of the received coded audio signal; and performing error correction on each sample block judged to have an error, wherein said receiving operation comprises re-converting the coded audio signal, which had been converted into a signal of ten bits for every two continuous bits and then transmitted, into an original signal of two continuous bits.