| 摘要 |
PROBLEM TO BE SOLVED: To provide a memory and reproducing apparatus for holography data capable of preventing the isolation 'on' or 'off' phenomenon arising in an arbitrary pixel and decreasing the errors arising during reproduction and a coding/decoding method for the holography data. SOLUTION: Data blocks of 2×2 formed by separating external input data to a plurality of groups respectively composed of 2-bit units in a recording (memory) mode, by having the 2-bit data of the respective groups as first lines and by having the 2-bit data formed by applying a binary differentiation system to the respective bits of the 2-bit data as second lines are recorded to a memory medium 119. The reproduced signals outputted from the memory medium 119 in a reproduction mode are separated to the data blocks of 2×2. The values of one line one row and two lines two rows of the data blocks of 2×2 are then compared and the one line two rows and the two rows one line are compared and are decoded to the data of the 2-bits, by which the isolation 'on' or 'off' phenomenon in the arbitrary pixel can be prevented. COPYRIGHT: (C)2004,JPO |
