DIFFERENTIAL CODING APPARATUS HAVING AN OPTIMUM PREDICTED VALUE DETERMINING CIRCUIT

摘要

A differential coding apparatus having a plurality of predictive function computing circuits and an optimum predicted value determining circuit. The optimum predicted value determining circuit determines the optimum predicted value from the plurality of predicted values by using a quantized prediction error used as an output signal of the apparatus, instead of a local decoded signal, and carries out the determining operation of the optimum predicted value in parallel with the quantized prediction error producing operation.