| 摘要 |
A DISC HANDLING MECHANISM THAT STORES A PLURALITY OF DISCS IN INDIVIDUAL TRAYS (12) MOUNTED ONE ABOVE THE OTHER ON A SHAFT (14), AND WHICH MOVES A SELECTED TRAY (12) FROM A STORAGE POSITION TO EITHER AND ACCESS POSITION (23) OR A READ POSITION, AND RETURNS THE SELECTED TRAY TO THE STORAGE POSITION. EACH TRAY (12) MAY BE ROTATED ABOUT A SHAFT (14) TO ANYONE OF THREE RELEVANT POINTS: STORAGE, ACCESS AND READ. IN THE STORAGE POSITION THE PLURALITY OF TRAYS (12) ARE STORED IN A VERTICAL STACK, WITH EACH DISK RESTING HORIZONTALLY ON AN INDIVIDUAL TRAY (12). IN THE ACCESS POSITION, A TRAY MAY BE SELECTED AND ROTATED ABOUT THE SHAFT TO EXPOSE THE TRAY AND PROVIDE ACCESS TO RETRIEVE OR INSERT A DISC, EVEN WHILE THE HANDLING SYSTEM IS READING ANOTHER DISC RETRIEVED FROM ANOTHER STORAGE TRAY. IN THE READ POSITION, THE TRAY DELIVERS A DISC TO THE LASER READER, WHICH RETRIEVES THE DISC FROM THE TRAY AND READS THE DISC.(FIG 2)
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