Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Tray or drawer loading or ejecting
Reexamination Certificate
2007-08-14
2007-08-14
Korzuch, William (Department: 2627)
Dynamic optical information storage or retrieval
Particular cabinet structure for optical media
Tray or drawer loading or ejecting
C720S699000
Reexamination Certificate
active
10451121
ABSTRACT:
A disk changer for CD and DVD disks including a rotatable platter with several slots each adapted for receiving a disk generally needs two optical sensors. The first sensor is adapted for detecting the number of a related slot of the platter and for providing a stop signal for the rotation of the platter. The second sensor is adapted for detecting the presence or absence of a disk in a given slot. Said sensors and their associated evaluation circuits are expensive components. Therefore it is an object to simplify the means for realizing said sensors. Said second sensor has the form of a link hingedly mounted between its two ends a first end of the link contacting the surface of the disk and a second end of the link cooperating with said first optical sensor. By this solution said second sensor and its associated evaluation circuit can be omitted substantially reducing the total costs of the changer.
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Fried Harvey D.
Goma Tawfik
Korzuch William
Laks Joseph J.
Thomson Licensing
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