| 摘要 |
PURPOSE:To reduce the size of data apparently by writing an ineffective code, which is generated from an ineffective code generating means, together when the data is written in a storage means. CONSTITUTION:A writing part 1 writes write data in a first in first out storage part 3, and data stored in this storage part 3 is read out by a reading part 4. The writing part 1 has two inputs, and one is write data line 11 from the external, and the other is an ineffective data line 12 from an ineffetive code generating part 2. This ineffective code generating part 2 puts the ineffective code onto the ineffective data line 12 n-number of times when write data is sent from the write data line 11. Thus, write data is increased to (n+1)-number of data and is read out when write data is received once. |
