Digital transmission signal processing system and recording/reproducing system

A digital information receiving apparatus for receiving a transmitted, bit-compressed digital information, comprising:

• reception means for receiving the bit-compressed digital information;
• demodulation means for demodulating an output signal from said reception means;
• error correction means for correcting errors in an output signal from said demodulation means;
• first output means for outputting the error-corrected digital information corrected by said error correction means to a record/reproducing means;
• input means for inputting a reproduced signal from said record/reproducing means;
• selecting means for selecting the error-corrected digital information corrected by said error-correction means or the reproduced signal from said input means;
• bit-expansion means for bit-expanding an output signal from said selecting means corresponding to the bit-compressed digital information;
• and
• second output means for outputting the bit-expanded information expanded by said bit-expansion means.