Patent ID: 6072917
Filing Date: 2000-06-06
Classification: G06K

Abstract:
A code sheet comprising:a sheet recording medium;multimedia information recorded on the sheet recording medium as an optically readable code pattern, said multimedia information including at least one of audio information, image information and digital code data, and said multimedia information having a content which is optically visible in a non-human-comprehensible form;a control code also recorded on the sheet recording medium as an optically readable code pattern, said control code representing control data used for executing one of a changing and processing operation with respect to an output format of the multimedia information, and said control code having a content which is optically visible in a non-human-comprehensible form; anda legible name recorded on the sheet recording medium in a vicinity of the control code, said legible name corresponding to the content of the control code and enabling visual comprehension of the content of the control code;wherein the control code and the multimedia information are readable by an optical reading device of an output apparatus, and wherein the output format of the multimedia information is either changed or processed when the optical reading device of the output apparatus reads the control code; andwherein the code pattern for one of the control code and the multimedia information includes a plurality of blocks each of which includes:a dot pattern having a plurality of dots arranged in accordance with the content of said one of the control code and the multimedia information;a marker having a pattern differing from the dot pattern, and having a first positional relationship with the dot pattern; anda block address pattern representing an address of each of the plurality of blocks, and having a second positional relationship with the marker.