Patent ID: 6662239
Filing Date: 2003-12-09
Classification: G11B

Abstract:
An information processing apparatus comprising:(a) a plurality of turntables each for detachably storing an optical disc thereon; (b) a plurality of optical units, each comprising a driving means and an optical read head, wherein said driving means is provided for moving said optical read head in a radial direction of said optical disc to a predetermined disc position on one surface of a selected optical disc; (c) means for simultaneously controlling a plurality of said driving means so as to move a plurality of said optical read heads in radial directions of said optical discs to a plurality of predetermined disc tracks for simultaneously retrieving information stored thereon; (d) a plurality of signal-process systems for processing a plurality of information sets retrieved by said plurality of optical read heads; and (e) data transmitting means for transmitting a plurality of the information sets by said plurality of signal-process systems.