| 摘要 |
PURPOSE:To eliminate the necessity to produce a compression data equivalent to a page and to reduce the capacity of a compression data memory, by adding such a code data that is expanded again from an address corresponding to the head address of the same data to the end of the compression data length. CONSTITUTION:For the data on a resident card, the same data occurs at about four areas. In this respect, a data is produced only at one area of the compression data, and such a code data that is expanded and prined again from the head of the same data is added to the end of the produced data. A detecting part 9 is provided to an expanding circuit 1 to detect the above-mentioned code data. Thus the code data is detected at the part 9, and as a result the data is expanded again from the head of the same data which is set previously at a control register 4'. |
