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7636289 |
Optical-recording medium, method for producing the same, and method for recording and reproducing optical-recording
An object of the invention is to provide an optical-recording medium in which problems such as cross-write, i.e., signals are recorded wrongly on adjacent tracks, and cross-erase i.e., recording...
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7626903 |
Optical disc apparatus and information recording and reproducing method
Disclosed is an optical disc apparatus that sets a plurality of virtual zones, which correspond to a plurality of zones that are arranged in the radial direction of an optical disc, for a plurality...
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7623430 |
High-density multi-layer optical disc and method for managing layer formatting thereof
A high-density multi-layer optical disc and a method for managing layer formatting thereof. A high-density multi-layer optical disc such as a Blu-ray disc rewritable (BD-RE) dual layer includes...
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7623433 |
Double-disk optical recording medium
An optical recording medium comprises a transparent lower disk and an upper disk secured together by a transparent intermediate member. On one side of the lower disk, groove tracks of width W G0 ...
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7623428 |
Multi-layer optical disc and method for managing layer formatting thereof
A high-density multi-layer optical disc and a method for managing layer formatting thereof. A high-density multi-layer optical disc such as a Blu-ray disc rewritable (BD-RE) dual layer includes...
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7623432 |
Method of recording information on a multi layer record carrier, and device for recording on a dual layer record carrier
Recordable DVD+R and DVD+R/W optical discs with two (or more) information layers are developed to double the data storage capacity and video recording time. A method and device are proposed to make...
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RE40977 |
Optical storage medium having multiple recording layers of different formats
A disc recording medium has recorded thereon a first program in a first recording area and corresponding first management data for managing readout of the first program and providing information,...
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7616538 |
Method for setting layer-jump point on optical disc
A method for setting a layer-jump point on a multilayer optical disc in an optical drive for accessing the multilayer optical disc. First, a magnetic-pole cycle value is accumulated. Next, a lag...
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7613092 |
Reproduction apparatus and focus jump method
The invention provides a reproduction apparatus that reproduces information recorded in a recording medium having plural recording layers, including: an optical head that irradiates laser beams on...
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7609605 |
Optical storage medium, optical read/write apparatus, and optical read/write method
An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is...
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7602693 |
Data recording apparatus
A data recording apparatus includes a recording medium which includes a semiconductor substrate, a first insulating layer formed on one surface of the substrate, a second insulating layer formed on...
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7596069 |
Optical medium aligned information system and method
Separate sets of optical medium identification information are embedded in separate aligned layers of the optical medium to allow an optical drive to initiate use of the optical medium with...
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7593303 |
Method of determining recording area of multi-layer optical disc, and recording and playback apparatus
To reduce influence of errors on the outer periphery side of a multi-layer recording disc, a first shifted middle area is assured at a predetermined position nearer to the inner periphery side than...
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7586824 |
Optical storage medium, optical read/write apparatus, and optical read/write method
An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is...
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7586814 |
Recording media data structure and method of reading data recorded in recording media
A recording media data structure includes a first recording layer having a lead-in area, a first user region successive to a physical sector of the lead-in area and for storing user data, and a...
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7583573 |
Information storage medium having multiple storage layers with optimal power control (OPC) areas and buffer areas
An information storage medium and an apparatus for recording and/or reproducing the information storage medium are provided to control optimal recording power without an influence of an optimal...
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7580327 |
Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method
The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as...
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7577073 |
Defect area management
A multi-layer optical writable disc (D) comprises at least two layers (L 1 , L 2 , . . . ) and at least two defect management areas (DF 1 , DF 2 , . . . ). A first defect management area (DF 1 ) is...
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7573799 |
Information recording method, information recording apparatus, program and computer readable information storage medium
In a method for writing data to an information recording medium having a plurality of recording layers, user data is written across between a plurality of the recording layers, and data other than...
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7570566 |
Optical disc, optical disc manufacturing method, and optical disc apparatus
According to one embodiment, an optical disc is the following the distance between a light incidence plane and the first recording layer is a minimum of 550 μm. The distance between the first and...
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7567493 |
Multilayer recording medium and method of manufacturing the same
A multilayer recording medium that prevents deterioration of a signal characteristic due to a mirror effect that may occur between recording layers and a method of manufacturing the same, the...
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7545712 |
Optical disk reproducing apparatus and optical disk reproducing method
An optical disk reproducing apparatus configured to reproduce an optical disk of a hybrid type having CD and HD layers, including a system controller. Preferably, the system controller includes a...
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7545714 |
Method for controlling data read speed of optical disc
Embodiments of method and apparatus for controlling a data read speed of an optical disc can reproduce data with greater accuracy. An embodiment of a method for controlling data read speed can...
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7542396 |
Information recording apparatus, information recording medium and information recording medium
To achieve stable, high capacity, high speed recording. Of two light beams emitted from a light irradiation means, one or two beams are made pass through an optical path changeable member whereof...
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7539113 |
Information recording apparatus and computer program
An information recording apparatus ( 300 ) is provided with: a recording device ( 352 ) for recording record information into a first or second recording layer by irradiating thereon laser light; a...
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7539114 |
Recording apparatus and recording method
User data is recorded in succession to the recording of a guard block on a next recording layer when the user data is recorded with a recording position shifted from one recording layer to the next...
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7539104 |
Information recording medium with superposed first and second recording layers
At least a first recording layer (L0 layer) and a second recording layer (l,1 layer) are provided. In the first recording layer, a first recording track path (a groove: a guiding groove) is formed...
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7529159 |
System and method for recording information onto an information recording medium's first and second recording layers
There is provided an information recording device for recoding information onto an information recording medium including a first recording layer (L0 layer) having a first recording capacity and a...
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7529172 |
Optical disk recording and playback device
An optical disk recording and playback device comprises a first laser driving circuit that supplies a driving signal to a first laser diode, a second laser driving circuit that supplies a driving...
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7525888 |
Optical information recording medium, an optical information recording apparatus, an information processing apparatus, program and information recording method
An optical information recording apparatus can maintain a stable recording quality when recording information on an optical information recording medium having a recording layer of a multilayer...
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7525896 |
Optical head and optical disk apparatus
An optical head comprises first and second light sources which are arranged next to each other and emit lights of different wavelengths and an optical device which is arranged between the first and...
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7522500 |
Method of recording and/or reproducing data with respect to multi-layer information storage medium having optimal power control areas
An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC...
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7518961 |
Optical disk recording and reproducing apparatus for recording and reproducing data in and from optical disk
An optical disk recording and reproducing apparatus includes a focus unit that focuses an irradiation light beam on an optical disk having data recording layers and tracks; a drive unit that...
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7518976 |
Optical head with light sources of different wavelength
The present invention is provided with a detection region for detecting light that is reflected from a first or a second information recording medium and that passes through an optical element. The...
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7515519 |
Information recording medium, information recording device and method, and computer program
An information recording medium ( 100 ), provided with: a first recording layer (L 0 layer) and a second recording layer (L 1 layer) in which record information can be recorded; and a plurality...
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7512048 |
Method and apparatus for reading optical discs having different configurations
A player is provided that is capable of playing discs of either a first or a second configuration. Both types of discs can be double-sided optical discs formed with data tracks. In one...
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7502285 |
Information recording apparatus and method, and computer program for recording control
An information recording device is used for recording record information in an information recording medium at least including a first recording layer capable of forming a first recording area and...
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7496012 |
Information storage medium having storage layer with optical power control area, and recording apparatus to record data with respect to information storage medium
An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition. Optimal...
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7492680 |
Method of recording data on information storage medium having multiple storage layers with optimal power control (OPC) areas and buffer areas
An information storage medium and an apparatus for recording and/or reproducing the information storage medium capable of controlling optimal recording power without an influence of an optimal...
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7489620 |
Optical information recording and reproducing medium
Optical information recording and reproducing medium 10 has two recording layers of first and second recording layers 12 and 14 , from a laser beam incident surface side. In each control area ...
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7489605 |
Method and apparatus of reproducing data from an information storage medium
An information storage medium on which data is recorded after performing optimum power control (OPC) and a method and apparatus to record/reproduce data on/from the information storage medium,...
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7489606 |
Information storage medium having multiple storage layers with optimal power control (OPC) areas and buffer areas
An information storage medium and an apparatus for recording and/or reproducing the information storage medium capable of controlling optimal recording power without an influence of an optimal...
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7483354 |
Optical disk apparatus for recording data on multilayer optical disk
When recording data on a multilayer optical disk, the recording power for a recording layer provided further from the laser beam incident side is optimized. An optical disk includes a first layer...
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7480225 |
Method for recording information on a multi layer record carrier, and record carrier for use by such method
This invention relates to a method for recording information on a multi layer record carrier. The information is recorded on the record carrier according to special filling patterns, such that the...
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7466641 |
Information storage medium having optimal power control areas
An information storage medium having a plurality of information storage layers, each of which includes an optimal power control (OPC) area for obtaining an optimal recording condition, wherein OPC...
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7457227 |
Optical disc
An optical disc includes a base having a signal reading surface at a first surface; a reflective layer provided on the signal reading surface of the base; a cover layer provided on the reflective...
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7449278 |
Multilayer optical recording medium and storage device
A multilayer optical recording medium including a first recording layer for recording or reproducing information by using a first light beam having a center wavelength λ1, a first photochromic...
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7447124 |
Recording/reproducing device
The present invention relates to a recording and/or reproduction apparatus and a program suitable for use to record or reproduce data onto or from an optical disk having two recording layers on one...
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7443777 |
Data 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...
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7443774 |
Optical head and data processing apparatus including the same
An optical data processing apparatus reads and/or writes data from/on a data storage medium, in which first and second data storage layer are stacked, by radiating light from the second layer. The...
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