| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain large capacity signal recording by dividing input signals into (n) frequency bands, recording them in (n) memory blocks, reading (n) digital signals, D/A converting them, and combining them into one signal at reproducing of the recorded signals. SOLUTION: Input analog signals are divided into different frequency bands and converted into digital signals. A main data compression/correction encoding circuit 102 and a sub-data compression/correction encoding circuit 103 respectively output main data groups Dc0 and Dc1 with error correction codes, and a flash memory binary block 104 and a flash memory multi-level block 105 store them. At reproducing, data are read, and the error main data group Do0 and the error sub-data group Do1 are D/A-converted, combined, and outputted as analog signals to the outside by a main data developing/error detecting and correcting circuit 106, sub-data developing/error detecting and correcting circuit 107, and D/A converter/main signal and sub-signal selecting and combining circuit 108.</p> |
