Method and apparatus for preventing errors in PCM signal processing apparatus

摘要: A technique is disclosed for preventing errors in a PCM error-correction decoder of the type supplied with successive transmission blocks, each comprised time-interleaved PCM, and error detection words, wherein blocks are selectively from first second data sources such that an interval produced as function transition period during which selection changed over one to other. According this technique, presence block detected, words included identified being erroneous. The time de-interleaved recover words. An erroneous word corrected remaining non-erroneous block. However, correction inhibited if disposed contains at least derived source another source.