Data distribution mechanism in the form of ink dots on cards

摘要

A card for causing the device to operate in a predetermined operation mode. The card comprises, on a first surface, a visual representation of the operation mode, and on a second surface, a visually encoded representation of the operation mode. The encoded representation is readable and decodable by the device so as to cause the device to operate in the operation mode. Methods of determining an output data of sensed data are also disclosed.