Surface identification system and method, object having an identification code pattern, and code reading apparatus for reading the object

A method for identifying a surface, comprising:

• providing an identification code pattern on a code area of a first surface, the identification code pattern comprising a plurality of through holes, recesses, or projections, or any combination thereof, formed on the code area;
• irradiating light rays towards the code area, so that a portion of light rays are reflected therefrom;
• receiving the reflected light rays to read out the identification code pattern according to a modulation of an electrical signal of the reflected light rays from each of the plurality of through holes, recesses, or projections, or any combination thereof, wherein the modulation is caused by a combined effect of a reflective distance between a surface where the reflected light rays are received and each of the plurality of through holes, recesses, or projections, or any combination thereof, and surface properties of each of the plurality of through holes, recesses, or projections, or any combination thereof;
• and
• indicating a correspondence between the identification code pattern and the first surface or a second surface.

A code reading apparatus for reading an identification code pattern of an object having at least one surface comprising a code area on which at least one identification code pattern comprising a plurality of through holes, recesses, or projections, or any combination thereof, is formed, wherein the identification code pattern is made to correspond to the at least one surface, comprising:

• a housing;
• a power supply;
• a circuitry electrically connected to the power supply;
• means for irradiating light rays and for detecting an amount of reflected light rays, the means being operatively connected to the circuitry;
• at least one channel mounted on the housing for guiding movement of the object so that the area code is scanned by the irradiating and detecting means;
• at least one holder coupled to the at least one channel for accommodating the object;
• wherein the irradiating and detecting means is capable of irradiating light rays towards the code area, receiving and detecting reflected light rays reflected from the code area, transmitting a signal to the circuitry for further processing, so as to read out the identification code pattern indicative of a correspondence to a surface, according to a modulation to an electrical signal of the reflected light rays from each of the plurality of through holes, recesses, or projections, or any combination thereof;
• and
• wherein the modulation is caused by a combined effect of a reflective distance between the code reading means and each of the plurality of through holes, recesses, or projections, or any combination thereof, and surface properties of each of the plurality of through holes, recesses, or projections, or any combination thereof.