Patent ID: 6072918
Filing Date: 2000-06-06
Classification: G06K,G09B,G11B

Abstract:
A device for reproducing multimedia information which is recorded in the form of an optically readable code pattern, comprising:first hierarchical processing means for optically reading a code pattern from an information recording medium having a portion in which the multimedia information containing at least one of audio information, video information and digital code data is recorded in the form of an optically readable code pattern, converting the read out code pattern into code data as an image, and outputting the code data to which information related to an operation of reading the code pattern is added as first processing information;second hierarchical processing means for recognizing the first processing information which is output from the first hierarchical processing means to process the code data output therefrom, creating blocks by collecting the code data in units of a predetermined amount, and outputting the blocks;third hierarchical processing means for extracting second processing information from data in the blocks and recognizing the second processing information, the second processing information being necessary to collect the blocks output from the second hierarchical processing means and create supermacro-blocks larger than the blocks in data amount, the third hierarchical processing means for further creating the supermacro-block based on the second processing information, extracting from the supermacro-blocks third processing information necessary to perform a process of coping with errors, recognizing the third processing information, performing the process of coping with the errors of the supermacro-blocks based on the third processing information, and creating and outputting at least one subset element;fourth hierarchical processing means for extracting fourth processing information from said at least one subset element output from the third hierarchical processing means, the fourth processing information being necessary to create, from said at least one subset element, at least one subset which includes data of a predetermined unit enabling restoration of the multimedia information, and fourth hierarchical processing means for further creating and outputting said at least one subset based on the fourth processing information; andoutputting means for outputting the subset which is output from the fourth hierarchical processing means, as restored multimedia information.