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Browse by Category: Main > Information Technology
Class Information
Number: 720/663
Name: Dynamic optical information storage or retrieval > Dynamic mechanism optical subsystem > Having power driven optical transducer assembly > Linear transducer assembly movement
Description: Subject matter wherein the movement of the optical transducer assembly is restricted to a straight path during recording or reproducing of the optical storage medium.










Sub-classes under this class:

Class Number Class Name Patents
720/664 Rack gear 34
720/666 Voice coil 43


Patents under this class:
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Patent Number Title Of Patent Date Issued
8713588 Integrated disk driving module including a stepping motor integrally formed with a base unit Apr. 29, 2014
8689245 Optical pickup device transfer mechanism Apr. 1, 2014
8555301 Integrated disk driving module including a lateral surface plate bent from an upper plate Oct. 8, 2013
8151287 Optical pickup feed device for sliding optical pickup Apr. 3, 2012
8051440 Optical read/write device Nov. 1, 2011
8028309 Optical read/write device Sep. 27, 2011
8024749 Optical pickup and optical disc apparatus with improved slide base Sep. 20, 2011
7890968 Optical disc device having two optomechanical mechanisms Feb. 15, 2011
7861254 Optical pickup Dec. 28, 2010
7647601 Pickup drive mechanism and recording medium drive having the same Jan. 12, 2010
7525899 Device for traversing optical pickup of a disc drive Apr. 28, 2009
7260041 Disk drive Aug. 21, 2007
7218513 Disc drive carrier unit May. 15, 2007
7131130 Pickup mounting structure with pickup cable holder bridging periphery-ribbed opening Oct. 31, 2006
7124419 Feed screw driver and information recorder/reproducer Oct. 17, 2006
6983473 Optical pickup device and recording and/or reproducing device Jan. 3, 2006
6971114 Optical pickup device and recording and/or reproducing device Nov. 29, 2005
6968562 Recording and/or reproducing apparatus Nov. 22, 2005
6880163 Optical pickup device and recording and/or reproducing device Apr. 12, 2005
6859934 Scanning device comprising a magnetically guided linear motor Feb. 22, 2005
6829776 Engaging head for movement converting mechanism in optical disc drive Dec. 7, 2004
6772427 Motor securing structures and disc drive Aug. 3, 2004
6643249 Disc ejecting apparatus Nov. 4, 2003
6192023 Optical pick-up feeding device having a regulating member to adjust an orientation of a lead screw thereof Feb. 20, 2001
6188665 Compact optical disk device capable of driving various types of optical disks Feb. 13, 2001
6175545 Optical pickup apparatus Jan. 16, 2001
6067210 Movable carriage assembly supporting glad/write heads for a disk drive May. 23, 2000
6058098 Head driving device May. 2, 2000
6052358 Head feeding mechanism and optical pick-up feeding mechanism Apr. 18, 2000
6046974 Optical pickup transport mechanism Apr. 4, 2000
5831962 Optical pickup carrying system Nov. 3, 1998
5828501 Apparatus and method for positioning a lens to expand an optical beam of an imaging system Oct. 27, 1998
5621718 Compact disc playing mechanism having first and second operating positions Apr. 15, 1997
5532989 Seek actuator for optical recording Jul. 2, 1996
5517483 Gear assembly for transporting a rotation force of a motor shaft to a lead screw May. 14, 1996
5471453 Information recording-reproducing apparatus Nov. 28, 1995
5450386 Optical disk device including a support member for movably supporting an objective lens in focusing and radial directions with respect to an optical disk Sep. 12, 1995
5303223 Head carriage apparatus moved by a lead-screw shaft including resilient means for pressing the lead-screw shaft in a slanting direction toward the head carriage Apr. 12, 1994
5243591 Protecting a read/write head from damage Sep. 7, 1993
5229669 Compact linear motor drive unit Jul. 20, 1993
5175723 Direct drive mechanism for data pickup carriage with no direct attachment between motor and frame Dec. 29, 1992
5063557 Disc drive apparatus Nov. 5, 1991
5050157 Friction reducing piezoelectric feed guide mechanism Sep. 17, 1991
5023862 Apparatus for locking a pickup unit of a disc player for a vehicle Jun. 11, 1991
4935916 Apparatus for recording and reproducing information including energy storing means Jun. 19, 1990
4831615 Dual differential optical system moving apparatus May. 16, 1989
4827365 Assembly for accessing information recording medium May. 2, 1989
4825432 Frictionless moving device for an optical recording system in a high density spiral track-forming apparatus capable of resisting disturbing forces Apr. 25, 1989
4788677 Disk support mechanism in a player Nov. 29, 1988
4763314 Linear actuator for an optical disk storage apparatus Aug. 9, 1988

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