| 摘要 |
<p>The present invention relates to a method (800) of determining a media type of an optical storage medium that is used in an optical disk system. The optical storage medium has an information layer with equidistant tracks. A method according to the invention comprises generating (802) at least two beams of light having a common point of origin and projecting (804) the at least two beams onto the information layer of the optical storage medium. The method further comprises varying (806) a distance between the point of origin and the information layer and measuring (808) the occurrence of at least one relative maximum of the amount of light reflected from the information layer while the distance is being varied. Finally, the method (800) comprises deriving (810) the media type from the measured occurrence of the at least one maximum. Also according to the invention, optical storage systems perform the above method of determining the media type of the optical storage medium.</p> |
