Patent ID: 6526531
Filing Date: 2003-02-25
Classification: H03M

Abstract:
In a signal processing application, a method of decoding an encoded frame comprising the steps of:a) decoding, during a current iteration of iterative decoding, the encoded frame to provide a decoded frame including decoded data and decoded error detection information; b) calculating a parity value from the decoded data; c) comparing the parity value with the decoded error detection information to determine if the data passes a parity check; d) if the decoded data passes the parity check, 1) terminating iterative decoding to provide the decoded data of the current iteration; otherwise, if the decoded data does not pass the parity check 2) calculating a difference of errors between the decoded frame of the current iteration and a decoded frame of a previous iteration; e) terminating iterative decoding in accordance with an error rate measure based on the difference calculated for the decoded frame of the current iteration, wherein the error-rate measure indicates either i) achieving a relative maximum bound for bit-error rate or ii) a relative minimum difference in errors for iterative decoding between the previous and current iterations.