INFORMATION BEARING MEDIUM AND INFORMATION PROCESSING SYSTEM

摘要

An information processing system includes an information bearing medium and an information reading unit. The information bearing medium has a two-dimensional array of unit data zones. Marks are provided on some of the unit data zones so as to form a digital code. Mark patterns of any two Y-directional adjacent unit data zone strings based on the arrangement of marks in an X-direction differ from each other. The information reading unit generates a data string on the basis of a unit signal formed from a plurality of signals output from a group of detection units that detect the marks in synchronization and recognizes the digital code of the information bearing medium on the basis of a group of the data strings sequentially obtained from the array of the unit data zones.

主权项

1. An information bearing medium comprising:
a media substrate; and a plurality of unit data zones formed on the media substrate in an array having a first direction and a second direction different from the first direction, wherein a mark is provided on at least one of the unit data zones in the array of the unit data zones so as to form a digital code, wherein the array is formed from unit data zone strings each extending in the first direction, and wherein mark patterns in the first direction of any two unit data zone strings adjacent to each other in the second-direction differ from each other.