Patent ID: 8626780

Claim:
A method for identifying a file played on a display device, the display device having a predetermined area, a plurality of color tags being attached to the file, the color tags being adapted to be displayed on the predetermined area, each of the color tags corresponding to a color code, the method being used with a color pattern, the color pattern recording at least one predetermined color sequence, the at least one predetermined color sequence corresponding to a piece of playing information of the file and being composed of the color codes, the method comprising the following steps of: (a) receiving a sensed datum from a sensing device; (b) determining a sensed color code representing the sensed datum, wherein the sensed color code is one of the color codes; (c) storing the sensed color code into a queue register; (d) iterating steps (a), (b), and (c) until an amount of the sensed color codes stored in the queue register is equal to a predetermined quantity, and a sensed color sequence being formed by the sensed color codes stored in the queue register; and (e) determining the piece of playing information corresponding to the sensed color sequence by comparing the sensed color sequence with the at least one predetermined color sequence; wherein the sensing device generates the sensed data by sensing the predetermined area.