Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Protecting optical transducer
Reexamination Certificate
2008-03-25
2008-03-25
Miller, Brian E. (Department: 2627)
Dynamic optical information storage or retrieval
Dynamic mechanism optical subsystem
Protecting optical transducer
C720S648000, C720S601000
Reexamination Certificate
active
10819804
ABSTRACT:
A disk drive unit advantageously prevents dust from adhering to a pickup. The disk drive unit has a housing and a tray. The tray reciprocates between a retracted position and a projected position. A first pickup and a second pickup have a spindle motor located therebetween. The tray has a first cutout and a second cutout. A cover is provided to cover the top of the second pickup in its retreated position. The cover has a cover piece, which is disposed in a front portion of the cover that is positioned on the upstream side relative to the rotational direction of a disk-shaped recording medium such that it is movable in a direction parallel to the direction in which the second pickup moves, and urged in the projecting direction.
REFERENCES:
patent: 5675566 (1997-10-01), Kosaka et al.
patent: 5677904 (1997-10-01), Yokota et al.
patent: 5790511 (1998-08-01), Juso et al.
patent: 6185180 (2001-02-01), Morishita
patent: 6430143 (2002-08-01), Kajiyama et al.
patent: 6964056 (2005-11-01), Obata et al.
patent: 7137129 (2006-11-01), Obata et al.
patent: 7188349 (2007-03-01), Ezawa et al.
patent: 2002/0021648 (2002-02-01), Shiomi et al.
patent: 2004/0066712 (2004-04-01), Mitsumoto et al.
patent: 2004/0213152 (2004-10-01), Matuoka et al.
patent: 2004/0255310 (2004-12-01), Obata et al.
patent: 1434220 (2004-06-01), None
patent: 1435615 (2004-07-01), None
patent: 06/005062 (1994-01-01), None
patent: 06/274917 (1994-09-01), None
patent: 08007430 (1996-01-01), None
patent: 2003/100004 (2003-04-01), None
patent: 2003/100007 (2003-04-01), None
Hirano Yusuke
Mitsuji Zensaku
Murata Morihiro
Negoro Hisashi
Obata Manabu
Kayrish Matthew G.
Miller Brian E.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
LandOfFree
Disk drive unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disk drive unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3955343