US Patent 7698619 Erasure forecasting and error-correction strategies

An erasure forecasting system includes a control module, an erasure feed-forward module, and an erasure decoder. The control module selects erasure parameters and determines error-detection thresholds for forecasting erasure in an input signal. The erasure feed-forward module receives the input signal, forecasts erasure in the input signal, generates an erasure feed-forward signal based on the erasure parameters and the error-detection thresholds, and generates codewords based on the erasure feed-forward signal and the input signal. The erasure decoder determines that the input signal is one of erroneous and not erroneous based on the erasure feed-forward signal.