Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Reexamination Certificate
2004-05-27
2009-10-27
Feild, Joseph H (Department: 2627)
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
Reexamination Certificate
active
07609593
ABSTRACT:
The present invention provides a disc drive apparatus capable of identifying a disc (12 cm) having a small data area (8 cm) in central as same as an ordinary 12 cm disc. The apparatus having a light receiving unit105band a push switch106b. The unit105bis arranged in a position where the unit105bdetects the disc having the small data area in central when the switch106bdetects the same, and where the unit105bdoes not detect a disc (12 cm) having a hole (8 cm) in central when the106bdetects the same. The apparatus also has an disc identifier for identifying type of the disc based on the detected results of the light receiving units and/or the push switches.
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JP 2000-163840, English translation, Jul. 17, 2005, pp. 1-5.
Japanese language Search Report for JP 2002-044195.
Maeda Yoshihiko
Nishida Hiroto
Urushihara Kenji
Yamaguchi Yuji
Feild Joseph H
Heyi Henok G
Panasonic Corporation
RatnerPrestia
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