Patent ID: 6282319
Filing Date: 2001-08-28
Classification: G06T

Abstract:
An information reproduction system comprising:reading means for optically reading a code by sensing the code to include a plurality of blocks within one image sensing frame, the code having a plurality of blocks arranged according to a predetermined block arrangement format, each of said blocks having at least a data pattern image corresponding to the content of block data formed by segmenting information data of the code in units of predetermined data volume and a header pattern image formed according to the content of a block header indicating an address allocated to each block;block detection means for detecting the blocks from the code within one image sensing frame read by said reading means;address data acquisition means for acquiring address data of each block detected by said block detection means;block data decoding means for decoding block data from the data pattern of each block detected by said block detection means;information data reproduction means for reproducing original information data by combining the block data decoded by said block data decoding means in accordance with the address data acquired by said address data acquisition means;image sensing condition discrimination means for discriminating whether an image sensing condition of the code read by said reading means is good or bad; andblock decoding control means for controlling said block data decoding means based on the good or bad code image sensing condition discriminated by said image sensing condition discrimination means so as to preferentially decode appropriately sensed blocks of the plurality of decodable blocks.