Patent ID: 7840029

Claim:
An information detecting apparatus for detecting a predetermined information in accordance with a predetermined dot pattern printed on a predetermined region of a sheet of paper comprising: a particular element dot detecting portion for scanning said predetermined region using an element matrix for detecting an element corresponding to an identifying dot used for identifying said predetermined information of said predetermined dot pattern and detecting a dot of the element in said predetermined region relevant to a particular element corresponding to said identifying dot of said element matrix; and an information detecting portion for detecting said predetermined information based on a result of the detection by said particular element dot detecting portion and said predetermined dot pattern; wherein said predetermined dot pattern includes a data dot placed at a position in accordance with said predetermined information, a position dot placed at a position for instructing a reference position used for identifying the position of said data dot, and an assisting dot placed at a position for assisting the instruction of the reference position by said identifying dot, and said identifying dot indicates a dot for detecting the position of the data dot.