Predictive coding method for information signals using adaptive prediction algorithm with switching between higher adaption rate and lower prediction accuracy and lower adaption rate and higher prediction accuracy

摘要

The predictive coding method passes through adaptive prediction algorithm with continuous value of information information signal coding, which Prediction Parameters selected with initial, these adaptations carry out the scheme of speed control parameter, in this way when the latter has the first value, its with the first fitting percentage and the first precision of prediction and when adaptation rate parameter have second value, with lower adaptation rate and higher accuracy of fit. Coding method provides the information signal of switching and lower precision of prediction and lower adaptation rate and the different piece of higher precision of prediction for coding between higher adaptation rate. It further include following: independent claims (one) predictive coding; Device B interpretation method information signals; The information signal of predictive code C; Predictive code decoding apparatus (four) computer program predictive coding method or decoded method predictive code information signal.