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Class 369/100 - Radiation beam modification of or by storage medium


Subclass of Class 369 - Dynamic information storage or retrieval
Definition: Subject matter wherein the information signal is stored
No. of patents: 639
Last issue date: 05/01/2012


1                      
NumberTitleIssue Date
8169875Optical pickup device and method of manufacture therefor
An optical pickup device includes a holder which holds an LD and a light-receiving element and an optical pickup case on which the holder is adhesively fixed via an ultraviolet cure adhesive, and is provided with a through hole on a bonding surface of the holder in ...
05/01/2012
8059513Data storage device container
A method of storing a data storage device includes but is not limited to emplacing a data storage device in a container, the container having surfaces; and writing storable data to the data storage device by transmitting energy through a surface of the container. In...
11/15/2011
8014254Optical disc and optical disc device
In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis...
09/06/2011
7978583Apparatus and method for forming reflective layer of optical disc
Improved techniques for forming a reflective layer of an optical disc are provided. One improvement includes forming the reflective layer over an information layer of the disc by utilizing a metallizer and a masking device having an angled lip configured to align to...
07/12/2011
7978584Pattern recognition type optical memory and optical read/write device and method for reading and writing data from or to the memory
There is provided a method and device for reading, writing, or both, data from or to a pattern recognition type optical memory having a light transmittable substrate. Patterns can be formed in the pattern recognition type optical memory from light images representin...
07/12/2011
7933186Method for manufacturing optical disk master, method for manufacturing optical disk, and apparatus for manufacturing optical disk master
A method and apparatus for manufacturing an optical disk master and an optical disk, including measuring the reflectance of laser light at each of a plurality of radius positions by applying the laser light to an optical disk master-forming substrate provided with a...
04/26/2011
7911916Beam applying method, beam applying apparatus, and optical recording medium
A beam applying method includes the steps of: rotationally driving an optical recording medium, in which a signal is recorded and reproduced by applying a beam thereto and which has a recording layer on which the signal is recorded, a polarization element formed bel...
03/22/2011
7911915Optical pickup and optical information recording apparatus using the same
An optical pickup includes a diffraction grating partitioned into three areas, in which the phase of periodic grating groove structure in an area is successively shifted from that in the adjacent area by 90°. In the generation of a differential push-pull signal, an...
03/22/2011
7907493Optical disc and optical disc device
In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis...
03/15/2011
7898922Optical pickup apparatus
An optical pickup apparatus includes a first objective lens having a low numerical aperture (NA) suitable for a low-density recording medium, a second objective lens having a high NA suitable for a high-density recording medium, a first light source to generate a sh...
03/01/2011
7898923Optical pickup device with heat radiation part, and optical disc apparatus including the optical pickup device
An optical pickup device which can improve heat radiation efficiency and an optical disk apparatus including the optical pickup device are provided. The optical pickup device having a base (110), a laser unit (141), an optical system (140) which...
03/01/2011
7889614Optical disc and optical disc device
In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis...
02/15/2011
7889615Optical discs for measuring analytes
This invention directs to an optical disc assembly configured to receive an analyte which can be detected by a standard optical disc reader or an optical disc reader modified therefrom. The optical disc assembly may preferably be designed so that the optical disc re...
02/15/2011
7889613Optical disc and optical disc device
In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis...
02/15/2011
7885163Optical pickup, recording/reproducing apparatus and recording/reproducing method
A recording medium, a recording/reproducing apparatus, and a recording/reproducing method are disclosed. The apparatus uses the number of record layers contained in a recording medium and a multi-wavelength light source including a plurality of optical signals havin...
02/08/2011
7835248Optical disk apparatus
In an exemplary embodiment of the present invention, after test write is performed with a predetermined test power to a first track on an optical disk, test write is performed with the same test power as the first track to a second track adjacent to the first track....
11/16/2010
7773485Optical disc and optical disc device
In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical dis...
08/10/2010
7751296Recording medium, recording apparatus and method, and reproducing apparatus and method
A recording medium (100) is provided with: an element layer including a semiconductor element (110) and an emission element (130), which emits light on the basis of an instruction from the semiconductor element; and a recording layer (120...
07/06/2010
7742377Image forming method, apparatus and computer-readable recording medium having image forming program
An image forming apparatus at least includes a photoreceptor, a light emitter, a detector and a controller. The light emitter irradiates the photoreceptor with a laser beam so as to form an electrostatic latent image thereon. The detector detects an incident amount ...
06/22/2010
7664000Data erase method for rewritable phase change type recording medium
For an optical recording medium having a phase change type recording layer on its a substrate and having as read only area and a writable area in a recording area, a data recording method is provided which records data in the writable area. This data recording metho...
02/16/2010
7599275Optical discs for measuring analytes
This invention directs to an optical disc assembly configured to receive an analyte which can be detected by a standard optical disc reader or an optical disc reader modified therefrom. The optical disc assembly may preferably be designed so that the optical disc re...
10/06/2009
7551537Method and apparatus for making master optical disk
An optical recording medium master disc exposure apparatus comprises a modulating means 3 for modulating intensity of light from an exposure light source 1 in response to recording information and a focusing optical system 9 for focusing the lig...
06/23/2009
7545722Method and apparatus for optically reading information attached to a target
In an apparatus for optically reading out through an imaging optics a first image of information by a photodetector. The information is attached to a target. In the apparatus, a marker beam irradiating unit irradiates on a target a marker beam for indicating a field...
06/09/2009
7539115Creating a permanent structure with high spatial resolution
In a method of creating a permanent structure with high spatial resolution, a substance which may be modified by an optical signal is provided in a writing area. The optical signal is applied to the writing area in such a way that a spatially limited partial area of...
05/26/2009
7515520Recording apparatus and liquid ejecting apparatus
A recording apparatus including a recording unit that performs recording on a recording medium; a transporting unit capable of transporting the recording medium; a first guide member and a second guide member disposed facing the first guide member having an section ...
04/07/2009
7480226Optical disc recording/reproducing apparatus and optimum bias power decision method therefor
An optical disc recording/reproducing apparatus and optimum bias power decision method thereof, having an optical pickup, a driving unit which drives a laser diode provided in the optical pickup to emit light corresponding to a certain bias power, a bias power varia...
01/20/2009
7474602Data storage device comprising write head with carbon element
A data storage device is introduced. The data storage device comprises a write head. The write head comprises a heating element and a tip. The write head scans a data storage medium, wherein in an operation mode of the data storage device the tip is in contact with ...
01/06/2009
7444047Multiplexing optical system
A multiplexing optical system includes collimator lenses, a first condensing lens, a second condensing lens and an optical fiber. The collimator lenses collimate divergent laser beams that have been emitted from semiconductor lasers. The first condensing lens conden...
10/28/2008
7441163Method of recording/reproducing digital data and apparatus for same
A digital data recording/reproducing method includes the steps of: interleaving data on a PI code for each PI code of a 208-row ECC block; and converting a short burst error into random errors by dispersing errors on the PI codes. Moreover, the digital data recordin...
10/21/2008
7438547Optical recording medium and master disc for manufacturing optical recording medium
An optical recording medium allowing high-density recording, where a groove having a shallow U-shaped cross section wider than certain width, a master for manufacturing optical recording medium, a manufacturing apparatus thereof, and a manufacturing method thereof a...
10/21/2008
7421627Method of recording/reproducing digital data and apparatus for same
A digital data recording/reproducing method includes the steps of: interleaving data on a PI code for each PI code of a 208-row ECC block; and converting a short burst error into random errors by dispersing errors on the PI codes. Moreover, the digital data recordin...
09/02/2008
7411890Systems and methods for recording optical information
A system controlling recording on an optical disc is provided. A first counter performs a bit count according to provided channel bit clock signals. A second counter performs a sector count responsive to the bit count obtained by the first counter. The Land/Groove s...
08/12/2008
7406018Signal generating circuit and optical pickup device provided therewith
A signal generating circuit of the invention includes a current polarity switch circuit that receives an output current of a light-sensitive element and outputs a current of which the direction the polarity switch circuit keeps constant regardless of the direction o...
07/29/2008
7403463Method and apparatus for filtering read signal to three or more cutoff frequencies with two or more bits control line throughout three or more consecutive periods
An optical disk drive apparatus is provided has a reading section which reads the reflection of a laser beam from a disk to produce a read signal, a filter section which filters the read signal with the use of three or more different cutoff frequencies upon receivin...
07/22/2008
7391708Optical disc and method for reproducing the same
The present invention provides a technique for improving reliability of reading header information. The optical disk is composed of a recording track. The recording track includes a data recording region in which recording pits are formed for recording data, and a h...
06/24/2008
7388825Optical data storage and retrieval systems utilizing dual energy sources
An optical data storage and retrieval system that includes a phase change storage medium and dual energy sources. The phase change material may store information by undergoing a transformation from one structural state to another structural state through application...
06/17/2008
7376067Allocation of real time files
When recording data on a medium where a certain data rate is required, an allocation manager in the player must allocate sections of the logical space in such a way that the recording medium is efficiently filled and that an adequate data rate can be guaranteed even...
05/20/2008
7372787Optical disc recording and reproducing apparatus permitting recording tests using external buffer memory and method of driving the apparatus
An optical disc recording and reproducing apparatus permitting a recording test using an external memory, and a method of driving the apparatus is provided. The optical disc recording and reproducing apparatus reads and bypasses test data to be recorded, which is st...
05/13/2008
7370808Method and system for manufacturing radio frequency identification tag antennas
A method and system for manufacturing radio frequency identification (RFID) tag antennas is described. A casting surface is provided having at least one raised antenna pattern extending therefrom. The casting surface is coated at least in an area other than the at l...
05/13/2008
7368222Optical data storage media with enhanced contrast
Disclosed is an optical data storage medium with enhanced contrast. The optical data storage medium includes a substrate having oppositely facing first and second surfaces. A first metal/alloy layer is formed overlaying the first surface of the substrate. The first ...
05/06/2008
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