Patent ID: 6201902
Filing Date: 2001-03-13
Classification: G06K,G09B,G11B

Abstract:
An information reproducing device for optically reading a code pattern from an information recording medium which includes a portion in which data regarding multimedia information is recorded in the form of an optically readable code pattern, said multimedia information containing at least one of audio information, video information and digital code data, and for processing the read code pattern to reproduce the multimedia information, where the code pattern is constituted of a given number of blocks which can be arranged adjacent to each other, each of the blocks includes (i) a data pattern formed in accordance with block data constituting part of the data regarding the multimedia information, (ii) a marker for use in recognizing said each of the blocks, and (iii) a block address pattern representing a block address of said each block, and the data pattern, the marker and the block address pattern having a predetermined positional relationship with each other, said information reproducing device comprising:a memory for storing block data included in each said block, which is obtained when the read code pattern is reproduced;means for recognizing an error state of the block address of each said block which is obtained when the read code Pattern is processed; anda memory controller for controlling storing of the block data of each said block in the memory in accordance with the error state of the block address of said block,wherein when any one of the blocks is read out a plurality of times, obtaining a plurality of block addresses for said any one of the blocks, the memory controller compares error states of the block addresses with each other, and then performs control such that the memory stores block data associated with one of the block addresses, the state of which is determined to be better than the state of any other block address.