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Class 720/658 - DYNAMIC MECHANISM OPTICAL SUBSYSTEM


Subclass of Class 720 - Dynamic optical information storage or retrieval
Definition: Subject matter under the ... including specifics of separate
No. of patents: 27
Last issue date: 07/17/2012


NumberTitleIssue Date
8225339Rotary head data storage and retrieval system and method
A head carriage unit in a data storage and retrieval system and method has a substantially planar working surface and multiple heads disposed at the working surface. The head carriage unit is adapted for rotational motion about an axis oriented substantially normal ...
07/17/2012
7934226Optical pickup apparatus
An optical pickup apparatus comprising: a photo detector configured to receive light reflected from a medium; a housing mounted with the photo detector; and a projecting portion projecting from the housing, the projecting portion including a displacement preventer c...
04/26/2011
7818760Data writing with plasmon resonator
A data writing system includes an array of cells for storing data and a write transducer that moves over a selected cell in the array of cells. The write transducer includes a writer producing a write magnetic field that intersects the selected cell. The write trans...
10/19/2010
7690009Electromagnetic field generating element, information recording/reproducing head and information recording/reproduction apparatus
An electromagnetic field generating element restrains magnetic field attenuation or magnetic field delay in a high frequency recording/reproducing head for thermally assisted magnetic field recording/reproduction using a near field. An information recording/reproduc...
03/30/2010
7665101Optical pickup apparatus
An optical pickup apparatus comprises a photo detector that receives light reflected from a medium; and a housing that is mounted with the photo detector. The photo detector is fixed to the housing with the use of an adhesive to mount the photo detector on the housi...
02/16/2010
7500255Data writing with plasmon resonator
A data writing system includes an array of cells for storing data and a write transducer that moves over a selected cell in the array of cells. The write transducer includes a writer producing a write magnetic field that intersects the selected cell. The write trans...
03/03/2009
7496938Media drive with a luminescence detector and methods of detecting an authentic article
A media drive is disclosed. In one embodiment, a media drive can comprise: a disk holder, a drive laser, a disk reader, and a luminescence detector. The disk holder can be capable of applying a rotational force to a media disk. The drive laser is disposed so that li...
02/24/2009
7461389Adaptor member for a disc drive
A common optical pickup can be mounted in any of disc drive units having respective pairs of oppositely disposed guide shafts that are separated from each other by different distances. The present invention provides an adaptor member for allowing an optical pickup c...
12/02/2008
7437743Optical disk drive
An optical disk drive which decreases unit costs and reduces the size of a product. The optical disk drive includes a frame, a base chassis rotatably installed on the frame, a spindle motor and a pick-up device installed on the base chassis, a tray moving into and o...
10/14/2008
7411793Optical disk device
An optical disk device of the present invention has a main PC board carrying a semiconductor element and attached at the rear of a drawer to efficiently dissipate a heat generated from the semiconductor element. The drawer is formed of a material having good thermal...
08/12/2008
7395543Disc chucking apparatus and disc player having the same
A disc chucking apparatus for seating a disc on a turntable in the rotatable state and a disc player having such a disc chucking apparatus is provided. The disc chucking apparatus includes a chuck bracket having a clamper for clamping a disc to a turntable; and a li...
07/01/2008
7394731Information playback apparatus
An information playback apparatus is provided to obtain editing effects using an optical disc in the same sense as an analog record disc is manipulated. An audio editing apparatus for playing back an optical disc such as a CD is provided with a rotatable jog dial, d...
07/01/2008
7391608Disk drive fastening mechanism
A disk drive fastening mechanism includes a computer chassis, a first disk drive rack and a second disk drive rack. The computer chassis has a top cover and a base that are connectable to each other. The first disk drive rack including a first retaining set and seco...
06/24/2008
7370339Disc drive apparatus
A disc drive apparatus has a fixed unit and a collapsible unit which is supported to be expansible and contractible to the fixed unit. A disc drive section is arranged on the fixed unit. The collapsible unit is driven by an expansion/contraction mechanism to expand ...
05/06/2008
7342870Position adjustment apparatus, optical pickup apparatus and position adjustment method
A chuck portion provided to keep a fixed positional relation with respect to a housing, holds a light source unit detachably. This chuck portion is displaced from an advanced position to a retracted position to displace the light source unit which is in a provisiona...
03/11/2008
7334244Flexible flat cable and disk drive using the same
A flexible flat cable and a disk drive using the same are provided. The flexible flat cable is configured to suppress an electromagnetic interference (EMI) generated by a signal transmitted by it. The flexible flat cable includes a main body and a metal layer. The m...
02/19/2008
7315452Optical disk device
An optical disk device of the present invention has a main PC board carrying a semiconductor element and attached at the rear of a drawer to efficiently dissipate a heat generated from the semiconductor element. The drawer is formed of a material having good thermal...
01/01/2008
7296280Step movement mechanism
A step movement mechanism is provided, which comprises a driven member and driving means, which drives the driven member. The driven member is formed with a plurality of equally spaced first concave cambered surfaces and a plurality of equally spaced force-bearing s...
11/13/2007
7272079Transducer for heat assisted magnetic recording
An apparatus for concentrating electromagnetic energy comprises a metallic transducer including a first section and a second section, wherein the first section is wider than the second section and has a width to length aspect ratio greater than or equal to a width t...
09/18/2007
7257828Optical head device
An optical head device includes a base member having an attachment surface passing a laser beam of light reflected by an optical disk, a block in the form of a wedge having an attachment surface adjacent to that of the base member and an attachment surface opposite ...
08/14/2007
7242644Optical disk drive, and a method of assembling it
An optical disk drive includes an optical pick-up unit having a fixed part with at least a light source, and a movable part mounted on a guide. The movable part includes a mirror, a focusing lens, and lens-moving elements. The movable part is adapted to move a focus...
07/10/2007
7210152Optical head and optical recording medium drive
Disclosed is an optical head, which comprises a semiconductor laser, a collimator lens for converting a beam emitted from the semiconductor laser light into parallel beam, a lens frame holding the collimator lens, a beam shaping prism for shaping the parallel beam p...
04/24/2007
7168081Domain stabilized magneto-optic head
A magneto-optic head includes a magnetic layer formed to have a substantially stabilized magnetic domain configuration. The magnetic layer includes a set of magnetic domains that includes one or more magnetic domains that are oriented such that they are substantiall...
01/23/2007
7010277Arrangement and method for interference cancelling
The present invention relates to an apparatus for cancellation of electromagnetic interferences (n), including means (3) for dividing a reference signal (sc) into a first and second signal (scl, scQ) having different phases, t...
03/07/2006
6901650Adjusting method for an optical disc apparatus
A relative adjustment between an optical disc rotating mechanism and an optical pickup is adjusted by rotating a rotary member against a biasing force of an engaging projection. As the rotary member is rotated, the projection is slid for movement on an inclined surf...
06/07/2005
5682373Optical pickup device
An optical pickup device capable of accessing, using one pickup device, two opposed discs without turning the pickup device over. The pickup device includes a light source; a beam splitter for dividing a beam into two linearly polarized beams, a reflectin...
10/28/1997
5107484Arrangement of recording/reproducing apparatus
There is disclosed herein a recording/reproducing apparatus including a magnetic field supply device for recording and reproducing of information and a cartridge holder for holding a cartridge having therein a recording disc. The apparatus includes a firs...
04/21/1992
 
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