НОСИТЕЛЬ ИНФОРМАЦИИ, СПОСОБ ВОСПРОИЗВЕДЕНИЯ И СПОСОБ ЗАПИСИ

Изобретение относится к носителю информации, к способам и устройствам его записи и воспроизведения. Носитель информации включает в себя материал записи "L-H" ("с низкого на высокий"), причем длина волны записи короче 620 нм, длина канального бита меньше 105 нм, шаг дорожки короче 600 нм, минимальное количество последовательных канальных битов после модуляции, имеющих значение "0", равно 1. Технический результат - устранение деформации подложки и чувствительности записи. 5 н.п. ф-лы, 128 ил.

ОПТИЧЕСКИ СЧИТЫВАЕМАЯ СРЕДА ХРАНЕНИЯ ДАННЫХ

... 1. Тонкая, гибкая, оптически считываемая среда хранения данных, содержащаятонкую, гибкую подложку, ипо меньшей мере, один тонкий, упруго гибкий, оптически считываемый носитель данных, удерживаемый с возможностью отсоединения на подложке, причем, по меньшей мере, один носитель имеет ось вращения и оптически считываемые дорожки данных в целом, концентричные оси вращения,подложка и, по меньшей мере, один носитель на ней образуют тонкую гибкую слоистую структуру, которая упруго деформируется из, по существу, плоской конфигурации в неплоскую конфигурацию без существенного отделения носителя от подложки и без неблагоприятного влияния на оптическую считываемость, по меньшей мере, одного носителя,по меньшей мере, один носитель приспособлен к удалению с подложки для последующего использования с помощью оптического считывающего устройства, которое способно вращать, по меньшей мере, один носитель для считывания дорожек данных на носителе.2. Среда хранения данных по п.1, в которой, по меньшей мере, ...

Schreib-/Lesevorrichtung für optische Information

Optisches Aufzeichnungsmedium und optisches Aufzeichnungs/Wiedergabegerät

SUBSTRAT FÜR BENUTZUNG OPTISCHEN AUFZEICHNUNGS-/WIEDERGABEMEDIUMS, HERSTELLUNGSVERFAHREN FÜR EIN OPTISCHES AUFZEICHNUNGS-/WIEDERGABEMEDIUM, PRODUKTIONSSTEMPEL UND PRODUKTIONSSTEMPEL FÜR OPTISCHES AUFZEICHNUNGS-/WIEDERGABEMEDIUM

OPTICALLY READABLE RECORD CARRIER

High-density read-only optical disk

OPTICAL RECORDING

... 1489756 Optical recording and playback PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Oct 1974 [17 Oct 1973] 44519/74 Heading G5R A record carrier stores information in an optically readable structure of constant width tracks, each track having first areas (g), Fig. 2 (not shown), alternating along the track with intermediate second areas (t), areas (g) having a different effect on an optical read beam than areas (t) and the information being encoded in the lengths of areas (g) and (t), each track exhibiting substantially spatially periodic lateral excursions of constant zero-peak amplitude (a) and of equal numbers in all tracks, amplitude (a) being smaller than the track width and the number of excursions in each track being substantially smaller than the number of the areas (g) in that track. The transmission or reflection coefficient of areas (g) may differ from that of areas (t) to give an amplitude modulated read beam or areas (g) may be arranged to give a different read beam phase ...

OPTICALLY SELECTABLE RECORDING CARRIER, DEVICE FOR THE PRODUCTION OF SUCH A RECORDING CARRIER, DEVICE FOR NOTING DATA INFORMATION ON SUCH RECORDING CARRIER AND DEVICE FOR THE SELECTION OF SUCH A RECORDING CARRIER

RECORDING CARRIER WITH AN OPTICALLY SELECTABLE ONE INFORMATION STRUCTURE

OPTICAL STORAGE MEDIUM WITH TRACES WITH POSITIVES AND NEGATIVES MARKINGS AND PUNCHES AND MANUFACTURING PROCESSES FOR MANUFACTURING THE OPTICAL STORAGE MEDIUM

OPTICAL RECORDING MEDIUM AND OPTICAL DISK EQUIPMENT

OPTICAL RECORDING MEDIUM

MULTILEVEL OPTICAL RECORDING MEDIUM AND PROCEDURE FOR THE EVALUATION OF AN OPTICAL RECORDING SYSTEM

AUFZEICHNUNGSTRAEGER MIT EINER OPTISCH AUSLESBAREN INFORMATIONSSTRUKTUR

OPTICAL RECORDING MEDIUM

MORE AUFZEICHNUNGSTRAGER, ON THE INFORMATION IN AN OPTICALLY SELECTABLE STRUCTURE IS STORED, AND DEVICES FOR SELECTION AND FOR NOTING THIS INFORMATION

RECORDING CARRIER WITH AN OPTICALLY SELECTABLE ONE INFORMATION STRUCTURE

MANUFACTURING PROCESS FOR OPTICAL RECORDING MEDIUM

OPTICAL RECORDING EQUIPMENT AND OPTICAL PLATE.

OPTISCH AUSLESBARER AUFZEICHNUNGSTRAEGER, VORRICHTUNG ZUR HERSTELLUNG EINES SOLCHEN AUFZEICHNUNGSTRAEGERS, VORRICHTUNG ZUM AUFZEICHNEN VON DATENINFORMATION AUF EINEM SOLCHEN AUFZEICHNUNGSTRAEGER UND VORRICHTUNG ZUM AUSLESEN EINES SOLCHEN AUFZEICHNUNGSTRAEGERS

Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium

Optical recording medium and optical disk device

RECORD-CARRIER BODY

OPTICAL RECORDING MEDIUM

OPTICAL DISC HAVING SERVO-TRACK PORTIONS AND SECTOR ADDRESSES AND APPARATUS

OPTICAL RECORDING MEDIUM, MANUFACTURING METHOD FOR OPTICAL RECORDING MEDIUM, AND REPRODUCING METHOD FOR OPTICAL RECORDING MEDIUM

An optical recording medium: which includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which medium identification information is recorded which is used to identify the optical recording medium individually by removing the metal reflection film partially and forming a plurality of reflection-film removed areas; and whose information is reproduced by irradiating the metal reflection film with a beam of light, in which in the sub-information area, a row of pits or a groove is formed on the substrate, and the track pitch of the row of pits or the groove is 0.24.mu.m or wider and 0.45 .mu. m or narrower.

RECORDABLE OPTICAL RECORDING MEDIUM AND RECORDING METHOD THEREOF

Provided is a recordable optical recording medium that comprises a substr ate, a recording layer, and a reflective layer, wherein the recording layer and the reflective layer are formed on the substrate, the recording layer is formed of an inorganic material, and information is recorded on the recorda ble optical recording medium by use of an irreversible change at the recordi ng layer caused by irradiating blue laser light.

INFORMATION RECORDING MEDIUM WITH PREPIT AND RECORDING/REPRODUCING APPARATUS AND METHOD USING THE SAME

An information recording medium that can be rapidly finalized, and a recording/reproducing apparatus and method using the same are provided. In the information recording medium, a prepit is pre-formed in a finalization area. Since the portion that has to be filled with data in finalizing the information recording medium is previously formed as the prepits series in manufacturing the information recording medium, the time necessary to finalize the information recording medium can be shortened, thereby achieving the rapid finalization of the medium.

RECORDING CARRIER IN THAT INFORMATION IN AN OPTICALLY SELECTABLE ONE RADIATION-REFLECTING INFORMATION STRUCTURE IS ATTACHED.

DISK-SHAPED OPTICAL OF SELECTABLE RECORDING CARRIERS FOR DATA INFORMATION, PROCEDURE FOR THE PRODUCTION OF SUCH A RECORDING CARRIER AND DEVICE FOR NOTING AND/OR FOR THE SELECTION OF THE SAME.

RECORDING CARRIER WITH OPTICALLY SELECTABLE ONE INFORMATION STRUCTURE.

Optical information recording medium, reproduction method, and reproduction device

Optical information recording medium

The optical information recording medium of the invention can facilitate the area which can be done with printing and painting extend to the inner circumference side comparing with the information recording area that does information recording with laser, thereby alleviating the brightness difference when observed from one side of the label surface. The optical information recording medium of theinvention comprises an optical disc 11 and an ink receiving layer 19 arranged at one side of the label surface, and the optical layer comprises a discal transparent substrate 12; a recording layer 13which is arranged to be one part of the area that spreads over the transparent substrate main surface and is formed with a pre-groove 12a and the area that is formed with a blank groove 12b; and a reflecting layer 14 which is arranged to spread over the area which is uncoated with color element material on the recording layer 13 and the transparent substrate; and the area which is at least uncoated with ...

Optical recording medium and playback method for the same

光信息媒体

... 本发明的课题在于将高密度信号作为能以光学方式来读取的信号来记录，同时可以稳定地记录信号。本发明是一种光信息媒体，具有透过记录光的透光性基板1、被形成于该透光性基板1上的记录层12以及被形成于该记录层12上并反射重放光的反射层13。使记录光照射于上述记录层12上的光学读写头的物镜o的开口率NA约为0.65，使记录光照射于上述反射层13上的光学读写头的物镜o的开口率NA约为0.6。 ...

CARRIER Of INFORMATION IN the SHAPE OF BROWSABLE DISC PER OPTICAL WAY, AND BEING USED AS MEDIUM Of STORAGE Of INFORMATION, DEVICE FOR the MANUFACTURE Of SUCH a CARRIER Of INFORMATION, DEVICE FOR the RECORDING Of INFORMATION IN SUCH a CARRIER Of INFORMATION AND DEVICE FOR the READING OF the INFORMATION Of SUCH a CARRIER

OPTICAL INFORMATION RECORDING MEDIUM WITH OFFSET FREE PIT ARRAY

본 발명에 따른 광학 정보 기록 매체는 서로 인접한 그루브 트랙과 랜드 트랙에 정보가 기록되거나 상기 트랙으로부터 정보가 재생될 수 있도록 적어도 하나의 상기 그루브 트랙과 적어도 하나의 상기 랜드 트랙을 포함하고 있다. 상기 광학 정보 기록 매체는, 상기 그루브 트랙과 랜드 트랙에 관한 식별 정보를 나타내는 프리 피트 어레이를 포함하고 있는 식별 신호 영역과; 상기 그루브 트랙 및 랜드 트랙을 따라 식별 정보 신호 영역의 앞에 설치된 서보 제어 영역으로서, 상기 그루브 트랙 또는 랜드 트랙의 중심선의 대향측으로 시프트하도록 위치된 워블 피트를 포함하고 있는 서보 제어 영역을 더 포함하고 있다. The optical information recording medium according to the present invention includes at least one groove track and at least one land track so that information can be recorded in or reproduced from groove tracks and land tracks adjacent to each other. The optical information recording medium includes: an identification signal area including a pre-pit array representing identification information about the groove track and the land track; And a servo control region provided in front of the identification information signal region along the groove track and the land track, the servo control region including a wobble pit positioned to shift toward the opposite side of the center line of the groove track or land track.

COMPATIBLE OPTICAL RECORDING MEDIUM

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A light absorbance is significantly lowered, and recording sensitivity is lowered with a light beam having a wavelength equal to or smaller than 620 nm under the influence of absorption spectrum characteristics of a general organic dye material. By employing an "L-H" organic dye recording material in which a reflection factor is increased from a non-recording portion to a recorded portion (recording mark), substrate deformation is eliminated, and recording sensitivity is improved by forming a recording mark using a discoloring action due to dissociation of electron coupling. © KIPO & WIPO 2007 ...

INFORMATION MEMORIZING MEDIUM, A STAMPER, A DISC DEVICE, AND A BAR CODE PATTERN REPRODUCING METHOD, WITH REGARD TO REPRODUCING A BAR CODE PATTERN FROM A BAR-TYPE PATTERN ARRANGED IN CONCENTRIC BAR CODE PATTERN AREA

PURPOSE: An information memorizing medium, a stamper, a disc device, and a bar code pattern reproducing method are provided to have a bar code pattern suitably recorded by a laser of a long wavelength. CONSTITUTION: A disc-type information memorizing medium includes a concentric bar code pattern area(11) and a concentric data area(21). The concentric bar code pattern area(11) includes a plurality of grooves(13), pigment material, and a plurality of bar-type patterns(12). A plurality of grooves(13) is arranged in a radius direction. The pigment material is coated on a plurality of the grooves(13). A plurality of the bar-type patterns(12) is formed to cross a plurality of the grooves(13) in the radius direction, and is arranged in a columnar direction. The concentric data area(21) includes a plurality of grooves(23) arranged in a radius direction and pigment material coated on a plurality of the grooves(23). A plurality of the bar-type patterns(12) arranged in the radius direction includes ...

OPTICAL RECORDING DISC ADAPTED TO STORING DATA USING AN ULTRA-VIOLET LASER SOURCE

Optical record carrier (20) adapted to storing data using a recording/reading device. The recording/reading device comprises an ultra-violet laser source emitting electromagnetic radiation (29) having a wavelength X in the range of 230 nm to 270 nm. The recording/reading device further comprises an objective lens (21) for focussing the electromagnetic radiation (29) on the optical recording carrier. NA is the numerical aperture of the objective lens. The optical record carier comprises a spiral track (22), which has a track pitch TP between 0.55 * λ/NA and 0.75 * λ/NA. © KIPO & WIPO 2007 ...

OPTICAL DISK

An optical disk (1) having a writable RAM area (10) and a nonrewritable read-in area (11), wherein the track pitch of the read-in area (11) is substantially equal to that of the RAM area (10), track A (2A) and track B (2B) where the polarity of the tacking error signal is different from that of track A (2A) are provided in the read-in area (11), and read-in data (3) is written in only track A (2A). The crosstalk of the read-in area (11) is greatly improved. The tracking control specifications of the RAM area (10) and the read-in area (11) are common to one another. © KIPO & WIPO 2007 ...

Optical information recording medium and production method thereof

The invention provides an optical recording medium that realizes high-density recording and suppresses penetration of the signal to neighboring tracks (cross-talk). An optical recording medium is provided which comprises a first substrate having a pregroove, and an undercoating layer, a dye recording layer, and a reflection layer provided in this order on the substrate, and a second substrate adhered onto the reflection layer via an adhesive layer or a sticky layer, wherein the track pitch of the pregroove is 0.1 to 0.6 m, and the depth of the pregroove is 20 to 200 nm.

Optical recording medium

To provide a product having satisfactory recording characteristics when high linear velocity recording is performed, in a rewritable recording medium having capacity as same as that of a DVD-ROM. A phase transition type optical recording medium wherein information is recorded, reproduced and rewritable by irradiating the material of a recording layer with an optical beam to generate optical change therein is characterized in that at least a first dielectric layer having optical film thickness (nd=refractive index x film thickness) in the range of 80 nm <= nd <= 200 nm, a phase transition recording material layer having the optical film thickness in the range of 20 nm <= nd <= 50 nm in the erased state, a second dielectric layer having the optical film thickness in the range of 10 nm <= nd <= 70 nm and a metal reflection layer are formed in this order on a transparent substrate of polycarbonate or the like having a meandering groove and an another transparent substrate of polycarbonate or ...

OPTICAL DATA STORAGE MEDIUM, APPARATUS AND METHOD FOR SCANNING SUCH A MEDIUM

An optical data storage medium (1) comprising a dye-based recording layer is described. It has substantially parallel tracks for recording user information in a pattern of optically detectable marks, the tracks being provided with a guide groove, the groove being present in a user data area (3) and in an information area (2) and being trackable by a focused radiation beam (7) with the push pull method. The value of the normalized push pull signal (PPN) in the unrecorded information area is PPN-i and the value of PPN in the unrecorded user data area is PPN-u and PPN-i is lower than PPN-u. It is achieved that the information area of such an optical data storage may be read by a legacy optical data drive without causing damage to the drive. Further an apparatus for reading and a corresponding method are described.

OPTICAL DISK RECORDING AND/OR REPRODUCING APPARATUS AND ITS RECORDING AND/OR REPRODUCING METHOD

A method for recording/reproducing data on/from an optical disk (1) (11) rotated by a rotating unit (56) (62). Address data is recorded on the optical disk (1) (11) having a first recording area (3) (12b) (13b) where a frame synchronizing signal and data are recorded and a second recording area (5) (14) where a predetermined pattern is formed in advance. A head unit (55) (63) scans the optical disk rotated by the rotating unit. When the head unit scans the first recording area, the rotating unit is controlled in a first rotation control mode; when the head unit scan the second recording area, the rotating unit is controlled in a second rotation control mode.

OPTICAL RECORDING MEDIUM

An optical recording medium having favorable recording sensitivity and repetition recording characteristic is used for recording at high speed corresponding to the speed of a 3X to 10X (10 to 36 m/s) DVD. The optical recording medium is characterized in that on a transparent substrate at least a first protective layer, a phase-change recording layer whose maximum recording linear velocity is 10.0 m/s or more and where data is rewritable at least at any linear velocity between 10.0 to 36.0 m/s, a second protective layer, and a reflective layer of heat conductivity of 300 W/m·K or more are formed, and in that further a layer whose film thickness is between 0.5 and 8 nm and which is formed of a low heat-conductivity material having a heat conductivity of 7 W/m·K or less is interposed between the second protective layer and the reflective layer.

RECORDING MEDIUM, RECORDING METHOD, AND RECORDING DEVICE

A plurality of track groups, having adjacent information recording tracks formed on a recording medium, are formed using a shorter track pitch (Tp1) than a track pitch corresponding to an optical cutoff specified by the wavelength of an irradiated laser light and a radiating optical system NA. In addition, a track group pitch (TpG) for adjacent track groups is formed so as to be longer than the track pitch corresponding to the optical cutoff. As a result of the track groups having a longer track group pitch than the optical cutoff, the track pitch within track groups can be narrowed and increased density of the track pitch direction overall can be achieved while maintaining the ability to obtain signals used by a servo from the cyclic structure of the track groups.

Storage medium, reproducing method, and recording method

According to one embodiment, a write-once type information storage medium comprises an organic dye based recording material having sensitivity at a wavelength of 405 nm and at a recording wavelength in the range of 600 nm to 700 nm, wherein, when absorbance of a maximum absorption wavelength in the vicinity of 405 nm is defined as 1, the absorbance is 5% or more at any wavelength in the range of 600 nm to 700 nm.

Optical disk and optical disk device

According to one embodiment, there is provided an optical disk including a substrate layer having a refractive index of 1.50 to 1.70 and a thickness X (μm) equal to or greater than f (n)−13 μm, a first information layer formed on the substrate layer, an adhesive layer formed on the first information layer and having a thickness Y (μm) equal to or greater than 20 μm, and a second information layer formed on the adhesive layer, wherein X+Y≦f (n)+30 μm and f(n) Подробнее

Optical head and optical disc device

The present invention aims to provide an optical head including a diffraction element capable of improving the quality of a TE signal by a DPP method even if light amounts of two sub-spots are unbalanced for optical discs having different groove pitches. In a three-beam optical head, a diffraction element 12 is divided in a radial direction of an optical disc into a first area 31, a second area 32 and a third area 33, wherein the second area 32 is further divided into a fourth area 321 and a fifth area 322. The periodic structure of the first area 31 is displaced from that of the fourth area 321 by a ¼ period, the periodic structure of the third area 32 is displaced from that of the first area 31 by a ½ period, and the periodic structure of the fifth area 322 is displaced from that of the third area 33 by a ¼ period and from that of the fourth area 321 by a ½ period.

Information recording carrier and method of reproducing the same

An information recording carrier in one mode has minute pattern including plural grooves or lands formed in parallel and adjacent each other and comprises a supporting body having the minute pattern, a recording layer formed on the minute pattern, and a light transmission layer formed on the recording layer. The minute pattern is formed under a relation of p<λ/NA, where a pitch of each groove or land is P, a wavelength of a laser beam is λ and a numerical aperture of an objective lens is NA. The plural grooves or lands have at least a wobbling region where data is recorded wobblingly by frequency shift modulation. A phase relation between the high and the low frequency portion composing the frequency shift modulation is ±(π/2.5) and the high and the low frequency portion are continuous in phase at a border between the high and the low frequency portion.

Optical information recording method and optical information recording medium

The present invention provides an optical information recording medium including a substrate with an on-groove and an in-groove, having successively disposed thereon a dye recording layer and a transparent sheet, wherein a width of the on-groove ranges from 50 to 140 nm, and a barrier layer is formed between the recording layer and the transparent sheet. The invention also provides an optical information recording method including irradiating the optical information recording medium with laser light from the side of the medium provided with a cover layer to form a void at a signal pit portion in the dye recording layer and thereby carrying out recording of information as well as an optical information recording medium on which information has been recorded by the method.

Optical information recording medium

To present a stable tracking signal with less change, in a recording medium possessing a discontinuous control information recording region of track groove and a data region by a continuous track. The track pitch of a preliminarily recorded control information pit portion region 3 is set larger than the track pitch of a data recording region 2 which is a continuous groove in a disk 1, and the tracking signal modulation degree of the both regions is nearly same, so that stable recording and reproducing may be realized.

Optical information recording medium

An optical information recording medium including a substrate in which at least one of a groove and a pit is formed; a recording layer located overlying the substrate and including a dye; and a reflection layer located overlying the recording layer, wherein the optical information recording medium has an absorbance curve with an absorbance L of from 10 to 40% against light having a wavelength λ of from 645 nm to 670 nm, a ratio (Lmax/Lmin) of a maximum absorbance Lmax of the absorbance curve to a minimum absorbance Lmin of from 1.0 to 2.0 at the wavelength range of from 645 nm to 670 nm, and a reflectance of from 45 to 85% against the light having a wavelength λ of from 645 nm to 670 nm.

Optical information recording medium

A phase-change optical information recording medium in which information can be recorded, reproduced and rewritten and which includes a first transparent substrate having a wobbling guide groove which is spirally formed thereon at a pitch; a first dielectric layer located overlying the first transparent substrate and having an optical thickness of from 80 nm to 200 nm; a phase-change recording layer located overlying the first dielectric layer and having an optical thickness of from 20 to 50 nm when the recording layer is in an erased state; a second dielectric layer located overlying the recording layer and having an optical thickness of from 10 nm to 70 nm; a reflection layer located overlying the second dielectric layer; optionally a third dielectric layer located between the second dielectric layer and the reflection layer; and a second transparent substrate located overlying the reflection layer.

Optical recording medium using land/groove recording

An optical disk recording medium including a substrate in the form of a substantially circular disk. Grooves and lands are alternately formed on the substrate in a radial direction with the grooves and lands both serving as recording tracks. The recording tracks are divided into recording units in the circumferential direction with each recording unit having a prepit area in a non-groove portion of the substrate. Plural pairs of first and second prepit portions are provided in the prepit area of each recording unit with first prepit portion being represented as VFO information and the second prepit portion being represented as address information. Both of the VFO information and the address information are formed on one side of a center line of one track so as to be shared with an adjacent track adjacent the one side of the center line of the one track, and every information including both of the VFO information and the address information do not exist at opposing positions on both sides ...

Record carrier containing information in an optically readable radiation reflecting information structure

A record carrier is described having an optically readable radiation-reflecting information structure, comprising information areas arranged in information tracks, which areas are spaced from each other by intermediate areas, the information areas having oblique walls. It is demonstrated that a suitable information signal and a suitable positional error signal are obtained if the angle of inclination of the walls of the information area lies between 65 DEG and 85 DEG and the phase depth of the information areas lies between 95 DEG and 140 DEG .

OPTICAL INFORMATION RECORDING MEDIUM, AND SUBSTRATE AND MANUFACTURING METHOD FOR THE OPTICAL INFORMATION RECORDING MEDIUM

In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.

INFORMATION RECORDING MEDIUM AND DISC APPARATUS

According to one embodiment, an information recording medium has two or more recording layers, the track pitch falls within the range from 250 to 500 nm, and the half maximum full-width of the groove of the substrate falls within the range from 47.5% to 72.5%.

Configuration of three-dimensional features in data recording structures

Improvements in the shape of three-dimensional features displayed in optical recording structures, particularly in such structures displaying features of differing dimensional characteristics. The shape improvements include reductions in berm height and width, dual level data marks and tracking guides, and land areas projecting above or into the surface of the recording structure.

OPTICAL INFORMATION RECORDING MEDIUM HAVING FIRST AND SECOND PIT ROW OF IDENTICAL REFLECTANCE

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1: An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andpolarity information for identifying a pit polarity being recorded in the second region.2: An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than 119 nm and (ii) a second region in which ...

INFORMATION RECORDING MEDIUM, AND METHOD OF MANUFACTURING INFORMATION RECORDING MEDIUM

An information recording medium (100) is an optical recording medium in which a groove is made along a recording track and record or reproduction is carried out by irradiating laser light to it and a push-pull signal, which is smaller than a prescribed value, is obtained from a part of a region (101a) of the groove.

Optical recording medium having auxiliary information and reference clock

An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for recording information, and a light transmitting layer formed on the recording layer. The microscopic pattern is formed with satisfying a relation of P/NA, wherein P is a pitch of the land portion or the groove portion, is a wavelength of reproducing light for reproducing the recording layer, and NA is a numerical aperture of an objective lens. The land portion is formed with wobbling so as to be parallel with each other for both sidewalls of the land portion. An auxiliary information based on data used supplementally when recording the information and a reference clock based on a clock used for controlling a recording speed when recording the information is recorded alternately. Information is recorded in the recording layer corresponding ...

Multilayer Information Recording Medium, Information Recorder, and Information Reproducer

A multi-layered information recording medium used in an information recording/reproducing apparatus applicable to both a single-layer information recording medium and an arbitrary multi-layered information recording medium is provided. The multi-layered information recording medium has a plurality of recording layers, and each of the recording layers has a guiding groove formed at a track pitch defined as a quadratic function of disk thickness (i.e., the distance from the light incident surface) of the associated recording layer. The guiding grooves of the recording layers are formed such that the track pitch of a reference recording layer having a disk thickness closest to that of the single-layer information recording medium is the smallest amongst the multiple recording layers.

Information recording medium having a wobbling groove structure

An information recording medium having at least a read only area and a recording and reproducing area is composed of at least: a substrate; a recording layer formed on the substrate so as to record and reproduce information; and a light transmission layer having transparency formed on the recording layer. The information recording medium is further characterized in that a wobbling groove corresponding to the read only area and another wobbling groove corresponding to the recording and reproducing area is formed on the substrate without overlapping with each other, the recording and light transmitting layers are continuously adhered over at least two areas of the read only area and the recording and reproducing area, reflectivity of the recording layer is more than 5%, and a push-pull signal output T 3 reproduced from the read only area and another push-pull signal output T 4 reproduced from the recording and reproducing area before recording satisfies relations of T 3 >=0.1, T 4 >=0.1 and ...

Information recording medium

An information recording medium includes a recording layer sandwiched between a pair of resin layers and has a track pitch in a range of 0.1 mum to 0.5 mum, inclusive. The recording layer has a higher refractive index than the pair of resin layers, is composed of a single layer of recording material of a same type, and is formed so that both surfaces thereof directly contact the pair of resin layers. At least one resin layer out of the pair of resin layers is formed with a refractive index in a range of 1.2 to 1.5, inclusive.

Information storage medium, stamper disc apparatus and management information playback method

According to this invention, a disc-like information storage medium has a concentric management information area (11) and a concentric data area (21). The management information area includes a plurality of grooves (13) aligned in a radial direction, a dye material applied to the plurality of grooves, and a plurality of bar-like patterns (12) formed in a radial direction crossing the plurality of grooves and aligned in a circumferential direction. The data area includes a plurality of grooves (23) aligned in the radial direction, and a dye material applied to the plurality of grooves. The plurality of bar-like patterns aligned in the circumferential direction include management information.

OPTICALLY READABLE DATA STORAGE MEDIUM

Optical head and information recording/reproducing apparatus

To provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk, low reliability data is recorded in a data area of BCA. Thus, the thickness of a film material for use in a recording layer oriented to BCA data or close to the inner periphery of the storage medium in the vicinity thereof is formed in uniform thickness by using a substrate of the storage medium, the substrate being formed by being suctioned by means of adsorbing mechanisms (56, 71, 72) formed in an arc shape so as to integrated two of the adsorbing mechanisms to be adjacent to each other. Therefore, the information recorded in a BCA (burst cutting area) or recorded close to the inner periphery of the storage medium in the vicinity thereof can be recorded precisely and stably.

Optical head and information recording/reproducing apparatus

To provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk, low reliability data is recorded in a data area of BCA. Thus, the thickness of a film material for use in a recording layer oriented to BCA data or close to the inner periphery of the storage medium in the vicinity thereof is formed in uniform thickness by using a substrate of the storage medium, the substrate being formed by being suctioned by means of adsorbing mechanisms (56, 71, 72) formed in an arc shape so as to integrated two of the adsorbing mechanisms to be adjacent to each other. Therefore, the information recorded in a BCA (burst cutting area) or recorded close to the inner periphery of the storage medium in the vicinity thereof can be recorded precisely and stably.

OPTICAL RECORDING MEDIUM AND METHOD FOR PRODUCING THE SAME

An optical recording medium, comprising: a substrate on which information is formed as pit rows constituted by concavities and convexities having a predetermined track pitch; at least a first metal reflective layer; and a transparent resin layer formed on the first metal reflective layer, which are formed on the substrate, wherein the information is reproduced by applying a light beam onto a signal face formed on the resin layer side of the first metal reflective layer, characterized in that the following relational expression: is satisfied, provided that a depth of the shortest pit formed in the signal face is D(S) and a depth of the longest pit formed in the signal face is D(L).

HIGH TRACK DENSITY SUPER RESOLUTION MO-ROM MEDIUM

The invention relates to a MO-ROM medium with a small track width, wherein data is recorded at least on one side of a disk wherein a data side has on a substrate at least a recording layer wherein said data is recorded and at least a read-out layer to reproduce said data recorded in said recording layer during read-out. Recorded data is arranged within adjacent data tracks on said disk and a recording density within a data track is beyond the diffraction limited density of the focussing optics. By arrangement of the data tracks in groups of several adjacent data tracks wherein a track width within a data track group is at least less than the diffraction limit of the focussing optics and providing reference means for tracking a selected data track group with said read-out laser beam a specific data track of each data track group can be read-out by adjusting a proper offset value within the radial tracking unit.

Optical information medium

Optical recording media and a method for recording on the optical recording media

An optical recording medium having each of a land and a groove and comprises at least a recording layer, dielectric layers and reflection layer. Recording and erasing of data can be carried out on both land and groove by a phase change between amorphous and crystalline states. The mirror portion may have reflectance characteristics selected from at least one of a reflectance of 15% to 35%, when in a crystalline state, and 10% or less, when in an amorphous state. Alternatively, additionally, the depth of the groove may be such as form an optical path length equal to 1/7 to 1/5 of the wavelength of the reproducing light and the photo-absorptance of the recording layer in the amorphous phase and the photo-absorptance in the crystalline phase may satisfy the following formula, Aa - Ac ¿ 10 ¿¿¿where Aa is the photo-absorptance (%) of the recording layer in the amorphous phase and Ac is the photo-absorptance (%) of the recording layer in the crystalline phase. In an optical recording method, ...

Optical information recording medium

An optical information recording medium comprising a substrate provided with periodically wobbling guide grooves with a track pitch of 1.6±0.1 µm, and a lower protective layer, a phase-change type recording layer, an upper protective layer and a reflective layer formed in this sequence on the substrate, for recording, retrieving and erasing amorphous marks in the guide grooves by modulation of light intensity of at least two levels by means of a focused light having a wavelength of 780±30 nm applied from the side of the substrate opposite to the recording layer side so that a crystalline state with a reflectance of from 15 to 25% is an unrecorded state, and an amorphous state with a reflectance of less than 10% is a recorded state, wherein the recording layer is a thin film of an alloy of Myy(SbxTe1-x)1-y where 0≦y<0.3, 0.5 Подробнее

Optical recording disk

A high-density optical disk comprises a transparent substrate having a guide groove having a depth of 100 to 200nm, width of 0.2 to 0.4µm arranged with a track pitch of 0.7 to 1.0µm. A recording layer is made of an organic pigment exhibiting a specific main weight reduction in a thermogravimetric analysis and a specific exothermic peak in a differential thermal analysis.

APPARATUS COMPRISING PICKUP PROVIDING THREE BEAMS FOR READING DATA FROM OR WRITING DATA TO OPTICAL STORAGE MEDIUM, AND CORRESPONDING OPTICAL STORAGE MEDIA

PROBLEM TO BE SOLVED: To establish a system for an advanced data storage use, specifically, when a pickup unit having a blue laser diode is used. SOLUTION: The apparatus comprises the pickup unit with a laser, a detector unit and an objective lens for reading data from or writing data to a Super-RENS (super-resolution near-field structure) optical storage medium having a track pitch (TP) below the optical resolution limit, the pickup unit generates a main beam (M) for reading and/or writing of data and generates two satellite beams (S1, S2) for providing a tracking error signal, the three beams are focused by the objective lens onto the optical storage medium, and the reflected light from the optical storage medium is guided onto the detector unit. The main beam and the two satellite beams have a light intensity on the optical storage medium being sufficient for providing a super-resolution effect for the main beam as well as for each satellite beam. COPYRIGHT: (C)2009,JPO&INPIT ...

PRODUCTION OF MASTER DISK FOR MANUFACTURE OF OPTICAL DISK

PROBLEM TO BE SOLVED: To provide a process for producing a master disk for manufacture of optical disk capable of improving the recording and reproducing characteristics of information and embodying the high-density recording of the information. SOLUTION: This process for production includes a stage 300 for forming an SiO2 film on a substrate, a stage 310 for coating the surface of the SiO2 film with a primary photoresist layer, a stage 320 for exposing the primary photoresist layer according to the patterns of corresponding groove forming recesses and land forming projecting parts, a stage 330 for etching the SiO2 film and a first photoresist layer, a stage 340 for coating the surface of the SiO2 film with the secondary photoresist layer, a stage 350 for exposing the secondary photoresist layer according to the pit patterns recorded with the prescribed information and a stage 360 for forming the pits at the groups and lands by etching the secondary photoresist layer. COPYRIGHT: (C)1999 ...

TRACKING METHOD FOR SHALLOW/DEEP SYSTEM OPTICAL DISK AND DEVICE THEREFOR

PROBLEM TO BE SOLVED: To make it possible to perform an exact tracking servo control of all shallow/deep group system optical disks. SOLUTION: A tracking servo control is performed by judging whether an optical disk is a shallow or a deep group system, and correcting the phase of a tracking error signal according to this judgement result. The tracking device is provided with an optical signal detecting part 30 for detecting a tracking error signal from an optical disk, a group system judging part 32 for analyzing the tracking error signal from the optical signal detecting part 30, judging the group system, and generating control signals C1, C2 responding thereto, a phase correction means 34 for correcting the phase of the tracking error signal from the optical signal detecting part 30 according to the control signals from the group system judging part 32, and a tracking servo part 36 for controlling a beam spot for an exact tracking by using the phase-corrected tracking error signal. COPYRIGHT ...

Optically readable record

A record carrier is described having an optically readable radiation-reflecting information structure, comprising information areas arranged in information tracks, which areas are spaced from each other by intermediate areas, the information areas having oblique walls. It is demonstrated that a suitable information signal and a suitable positional error signal are obtained if the angle of inclination of the walls of the information area lies between 65 DEG and 85 DEG and the phase depth of the information areas lies between 95 DEG and 140 DEG .

Optical recording media

A reflection-type optical recording medium which has a surface on which track guide grooves are formed and in which a layer of a recording material that has an increased energy reflection coefficient in a write portion. The track guide grooves are formed with a depth phi 0 so that improved efficiency results because of the selection of various parameters of the system.

OPTICALLY READABLE RECORD CARRIER

AUFZEICHNUNGSTRAGER, AUF DEM INFORMATION IN EINER OPTISCH AUSLESBAREN STRUKTUR GESPEICHERT IST, UND VORRICHTUNGEN ZUM AUSLESEN UND ZUM AUFZEICHNEN DIESER INFORMATION

AUFZEICHNUNGSTRAEGER, IN DEM DATEN IN EINER OPTISCH AUSLESBAREN INFORMATIONSSTRUKTUR GESPEICHERT SINDUND VORRICHTUNG ZUM AUSLESEN DESSELBEN

COMPATIBLE OPTICAL RECORDING MEDIUM

OPTICAL RECORDING MEDIUM

COMPATIBLE OPTICAL RECORDING MEDIUM

OPTICAL DATA MEMORY MEDIUM AS WELL AS DEVICE AND PROCEDURE FOR SCANNING SUCH A MEDIUM

OPTICAL STORAGE MEDIUM

OPTICAL RECORDING MEDIUM AND RENDITION PROCEDURE FOR AN OPTICAL RECORDING MEDIUM

OPTICAL RECORDING MEDIUM AND ITS RENDITION PROCEDURES

PROCEDURE AND DEVICE FOR THE INCREASE OF THE STORAGE CAPACITY OF THE PHOTOGRAPH MEDIA.

RECORDING CARRIER, IN WHICH INFORMATION IS APPROPRIATE IN AN OPTICALLY SELECTABLE ONE INFORNATIONSSTRUKUR BY IN TRACES ARRANGEMENT INFORMATION AREAS

INFORMATION RECORDING MEDIUM AND INFORMATION RECORDER

OPTICAL RECORD CARRIER

OPTICAL RECORDING MEDIUM, AND OPTICAL STORAGE DEVICE

Information recording medium with prepit and recording/reproducing apparatus and method using the same

Information storage medium, reproducing method, and recording method

According to one embodiment, an information storage medium includes an organic dye material which records information with a light beam having a wavelength equal to or smaller than 620 nm.

Optical storage medium comprising tracks with modified mark dimensions, and respective apparatus for reading of data

The optical storage medium comprises a substrate layer and a data layer disposed on the substrate layer, the data layer having a mark/space data structure being arranged in tracks, wherein on a first track, the marks are enlarged in length and the spaces are shortened in length, and on an adjacent track, the marks are shortened in length and the spaces are enlarged in length. The track pitch between adjacent tracks is particularly below a diffraction limit of λ/2*NA of a pickup for reading of the data.

Information storage medium, reproducing method, and recording method

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field.

Information storage medium, reproducing method, and recording method

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field.

Information storage medium, reproducing method, and recording method

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field.

Information storage medium, reproducing method, and recording method

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field.

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, anda byte position of the version, a byte position of the extended part version field, and a byte position of one of the revision number of maximum recording speed and the revision number of minimum recording speed are smaller than a byte position of the information relating to recording power corresponding to the one of the revision number of maximum recording speed and the revision number of minimum recording ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a revision number table including another revision number, andthe data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable information storage medium.4. A recording method for recording data ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a revision number table including another revision number,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, anda byte position of the version, a byte position of the extended part version field, and a byte position of one of the revision number of maximum recording speed and the revision number of minimum recording speed are smaller than a byte position of the information relating to recording power corresponding to the one of the revision number of maximum recording speed and the ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}a byte position of the revision number of maximum recording speed is between a byte position of the version and a byte position of the extended part version field,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, andthe data structure is configured to store information specifying single layer or dual layer or another.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable ...

OPTICAL DATA STORAGE MEDIUM AND USE OF SUCH MEDIUM

A multi-stack optical data storage medium for recording and reading using a focused radiation beam entering through an entrance face of the medium has a first substrate with a first guide groove having a depth G<80 nm and a full half maximum width W<350 nm, where a first recording stack is formed over the first substrate and includes a recordable type recording layer formed in the first guide groove. A first reflective layer is present between the first recording layer and the first substrate. A second recording stack has a recordable type recording layer formed a second guide groove of a second substrate, where the second recording stack is present at a position closer to the entrance face than the first recording stack. A transparent spacer layer is sandwiched between the first and second recording stacks. The first Lguide groove has a depth G<100 nm. 1. A multi-stack optical data storage medium with two recording stacks separated by a transparent spacer layer for recording and reading using a focused radiation beam entering through an entrance face of the medium during recording and reading , comprising:a first substrate located on a side farthest from the entrance face, the first substrate having a first guide groove formed on a substrate surface facing the entrance face;a second substrate located on a side nearest to the entrance face, the second substrate having a second guide groove formed on a substrate surface facing away from the entrance face;a first reflective layer located on the first guide groove;a first recording layer formed on the first reflective layer;a dielectric layer located over the first recording layer;the transparent spacer layer located over the dielectric layer;a second reflective layer located on the second guide groove;a second recording layer formed in the second guide groove and located on the second reflective layer,wherein the transparent spacer layer separating the two recording stacks including the first and second recording ...

Information storage medium, reproducing method, and recording method

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification.

OPTICAL INFORMATION RECORDING MEDIUM

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1: An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andthe first region having a narrower track pitch than the second region.2: An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than 119 nm and (ii) a second region in which information is recorded ...

OPTICAL TAPE WITH AN INCREASED TRACK PITCH FOR IMPROVEMENT OF TRACKING PERFORMANCE AFTER SEAM

In at least one embodiment, an optical data storage tape is provided. The optical data storage tape includes a read/write data area including a plurality of writeable tracks for storing data thereon, each writeable track having a first track width. The optical data storage tape further includes a seam area positioned proximate to the read/write data area. The seam area including a plurality of non-writeable tracks, each non-writeable track including a second track width that is greater than the first track width for each writeable track. 1. An optical data storage tape comprising:a first read/write data area including a first plurality of tracks for storing data, each track, in the first plurality of tracks, having a first track width;a pre-seam area positioned between the first read/write data area and a seam, the pre-seam area including a second plurality of tracks, wherein at least one of the second plurality of tracks has a second track width greater than the first track width;the seam;a post-seam area positioned between the seam and a second read/write data area, the post-seam area including a third plurality of tracks, wherein at least one of the third plurality of tracks has a third track width that is greater than the first track width;the second read/write data area including a fourth plurality of tracks for storing data.2. The optical data storage tape of wherein the second track width is approximately twice the size of the first track width.3. The optical data storage tape of wherein the second track width is more than 50% greater than the first track width.4. The optical data storage tape of wherein each of the second plurality of tracks have a wider width than each of the first plurality of tracks.5. The optical data storage tape of wherein the seam corresponds to a seam joint that joins at least two shims on an embossing drum that imprints a nanostructure pattern onto a layer of the optical data storage tape.6. The optical data storage tape of wherein ...

Optical recording medium, and recording and reproducing method and optical recording and reproducing apparatus of optical recording medium

The present invention is aimed at providing a dual-layer phase-change optical recording medium which allows a high-density recording and a recording, where the optical recording medium has a high recording sensitivity even to a low power light with a short wavelength such as blue laser beam, does not cause noises such as jitter, has superior overwrite performance and favorable archivability, allows easier focusing and tracking and enables a compatibility with a ROM. Therefore, it provides an optical recording medium including a substrate and, on the substrate at least a first recording composite layer, an intermediate layer, a second recording composite layer and a cover substrate in this order, wherein the groove depth of the cover substrate is such that the magnitude of a push-pull signal of the first recording composite layer is equal or greater with respect to a push-pull signal of the second recording composite layer.

Optical information recording medium

光信息记录介质

本发明提供C/N和再现耐久性都优秀且可无故障进行高密度记录的光记录介质。另外，提供照射短波长蓝色激光可进行信息的高密度且大容量记录和再现并具有感光度和反射率均优秀的记录特性的光信息记录介质。该光记录介质使用450nm以下的激光进行记录再现，在形成了轨道间距为200～400nm、槽深为50～150nm、槽半值宽度为90～200nm的凹槽的基板上，设置反射层、记录层等，且前述记录层含有在600～800nm和300～400nm分别具有极大吸收在1以上的有机物。该光信息记录介质，是基板上具有通过数值孔径(NA)0.7以上的透镜照射波长380～500nm的激光可记录信息的记录层的光信息记录介质，其特征在于，前述记录层是含有有机物的层，且前述基板的槽深是15～45nm，轨道间距为250～400nm，槽半值宽度为60～200nm，槽的倾斜角为40°～80°。

相変化光ディスク媒体

(57)【要約】 【課題】 高密度化により減少する再生信号を増大し、 高密度情報再生が可能な相変化光ディスク媒体を実現す る。 【解決手段】 図１において、相変化膜５を含む記録層 の光学的干渉効果により情報マーク内外の反射率比を高 めて再生信号を増大させる。

Optical Recording Method and Optical Recording Medium

상변화형 광기록매체에서 고밀도 기록을 가능하게 하고, 또 데이터 전송속도을 높게 한다. High density recording is possible in the phase change type optical recording medium, and the data transmission speed is increased. 홈을 갖는 투광성 기체위에 상변화형 기록층, 유전체층 및 반사층을 상기 순서대로 설치한 광기록매체에 기록을 행할 때, 기록에 사용하는 레이저광의 파장을 λ, 기록광학계의 대물렌즈의 개구수를 NA, 기록트랙의 배열의 피치를 P T 로 할 때, 0.48 ≤P T ≤(λ/NA) ≤0.74, P T ≤0.50㎛가 성립하는 조건에서 홈에 대해 기록을 행함으로써 양단부가 홈으로부터 돌출된 기록마크를 형성하는 광기록방법. When recording on an optical recording medium provided with a phase change type recording layer, a dielectric layer, and a reflective layer in the above order on a light-transmitting substrate having grooves, the wavelength of the laser light used for recording is λ, and the numerical aperture of the objective lens of the recording optical system is NA. , when the pitch of the arrangement of the recording track T as P, by from 0.48 ≤P T ≤ (λ / NA ) ≤0.74, conditions in which P T is established ≤0.50㎛ performing recording for the groove end portions are protruded from the groove An optical recording method for forming a recording mark.

Optical pick-up equipment for optical disk having a different track pitch

본 발명에 따른 트랙 피치가 상이한 광디스크용 광픽업 장치는, 광디스크로부터 반사 및 회절되는 회절빔 중에서 대물렌즈의 좌·우 이동에 의한 트랙킹 에러 오프셋이 최소인 사이드 영역의 회절패턴을 이용하여 트래킹 서보 추종을 수행하고, 회절빔의 중심 영역의 회절패턴을 이용하여 포커스 서보 추종을 수행하는 것을 특징으로 한다. The optical pickup apparatus for optical discs having different track pitches according to the present invention is based on tracking servo tracking using a diffraction pattern of a side region having a minimum tracking error offset due to left and right movement of an objective lens among diffraction beams reflected and diffracted from the optical disc. Next, focus servo tracking is performed using the diffraction pattern of the center region of the diffraction beam. 따라서, 본 발명은 대물렌즈의 좌·우 이동에 의한 트래킹 에러 오프셋이 최소인 광분포를 갖는 사이드 영역의 회절패턴을 이용하여 트래킹 서보 추종을 수행함으로써, 트랙 피치가 상이한 광디스크에 대한 정확한 트랙킹 에러 신호를 검출할 수 있다는 효과를 제공한다. Therefore, the present invention performs tracking servo tracking by using the diffraction pattern of the side region having the light distribution with the minimum tracking error offset due to the left and right movement of the objective lens, thereby correcting the tracking error signal for the optical disk having different track pitches. It provides the effect that can be detected. 광픽업, 광스팟, 홀로그램, 홀로그램 패턴, 광검출 수단, 광검출 패턴. Optical pickup, light spot, hologram, hologram pattern, light detection means, light detection pattern.

Data storage devices and methods

A data storage device including: a plastic substrate having a plurality of volumes arranged in tracks along a plurality of vertically stacked, laterally extending layers therein; and, a plurality of micro-holograms each contained in a corresponding one of the volumes; herein, the presence or absence of a micro-hologram in each of the volumes is indicative of a corresponding portion of data stored.

光记录媒体

本发明提供一种DVD用的记录媒体(DVD-R，DVD+R)，所述记录媒体具有对记录波长的依赖性小的优异的记录特性。本发明的光记录媒体系在表面形成有槽及/或坑的基板上顺次层叠色素记录层和反射层，其特征在于，对于真空中的波长λ为645-670nm的范围的光，其光吸收率L为10-40%，光吸收率的波长特性L(λ)中最大值和最小值之比为1.0-2.0，光反射率为45-85%。所述槽的磁道间距为0.73-0.75μm，且，槽深为1450-1650，槽宽为0.21-0.31μm。

Multi-layer structure photo information media

광디스크, 광테이프, 광카드 등의 광정보매체에 관한 것으로서, 평면적으로 고기록밀도이고 또한 3차원적인 기록재생이 가능하고, 저렴하게 제작가능한 다층구조 광정보매체를 제공하기 위해, 평면정보영역을 각각 2면∼4면 마련한 제1 및 제2 기판을 제1 및 제2 기판이 각각 바깥쪽으로 위치하도록 배치된 구조를 갖고, 제1 및 제2 기판의 두께를 각각 0.52mm이상, 0.65mm이하로 한 다층구조 광정보매체는 예를 들면 각각의 기판 또는 투명한 물질층의 표면에 마련된 오목볼록과 그 위에 마련된 반사층으로 이루어지고, 기판에서 가장 떨어진 위치의 평면정보영역은 반투명막으로 바꾸어서 반사층을 갖고, 기판에서 가장 떨어진 위치의 평면정보영역은 기록층과 기록층상에 마련된 반사층으로 이루어지는 것이어도 좋다. In order to provide a multi-layered optical information medium such as an optical disc, an optical tape, and an optical card, which has a high recording density and can be recorded and reproduced in three dimensions in a planar manner, Wherein the first and second substrates are respectively arranged so that the first and second substrates are respectively positioned outwardly and the thicknesses of the first and second substrates are respectively set to 0.52 mm or more and 0.65 mm or less For example, a multi-layered optical information medium comprises concave convexities formed on the surface of each substrate or a transparent material layer and a reflective layer provided thereon, and a planar information region at the farthest position from the substrate is changed to a translucent film, The planar information region at the farthest position from the substrate may be a recording layer and a reflective layer provided on the recording layer. 이러한 것에 의해 에러 없이 정보를 재생할 수 있는 효과가 있다. Thereby, there is an effect that information can be reproduced without error.

Multilayer optical information medium

A multilayer optical information medium provided with structure in which first and second substrates respectively provided with two to four layers of planar information areas are respectively arranged outside wherein the thickness of the above-described first and second substrates is set in the range of 0.52 to 0.65 mm. The above-described planar information area consists of embossed pits provided, for example on the surface of respective substrates or on the surface of a layer formed by transparent material and a semi-reflective layer provided on the embossed pits. A planar information area arranged in the farthest position from respective substrates is provided with a reflective layer in place of the above-described semi-reflective layer. The planar information area arranged in the farthest position from respective substrates may be constituted by a recording layer and a reflective layer provided on the recording layer.

Information recording medium in which prepit is formed and recording/reproducing apparatus and recording/reproducing method

본 발명에 따라 정보 저장 매체의 최종화를 신속하게 하기 위한 정보 저장 매체 및 기록/재생 장치, 기록/재생 방법이 개시된다. Disclosed is an information storage medium, a recording / reproducing apparatus, and a recording / reproducing method for speeding up the finalization of an information storage medium according to the present invention. 본 발명에 따른 정보 저장 매체는 상기 매체의 최종화를 위한 영역에 미리 프리피트가 형성되어 있다. 이와 같은 본 발명에 따르면, 정보 저장 매체의 제조시에 이러한 정보 저장 매체의 최종화시에 데이터를 채워야 하는 부분을 미리 프리피트로 형성함으로써, 이후 정보 저장 매체를 사용하고 나서 이 매체를 최종화할 때 소요되는 시간을 절약하여 정보 저장 매체의 최종화를 신속하게 할 수 있다.  In the information storage medium according to the present invention, prepits are formed in advance in an area for finalizing the medium. According to the present invention as described above, a portion to be filled with data at the time of finalization of the information storage medium at the time of manufacture of the information storage medium is formed as a prepit so that it is necessary to finalize the medium after using the information storage medium. The time required for the finalization of the information storage medium can be quickly saved.

Optical recording medium and optical disk device

본 발명은, 크로스라이트(crosswrite)의 방지나 재생신호의 균질화를 실현하고, 용이하게 재생전용 디스크와의 호환성을 확보할 수 있는 광학기록매체 및 광디스크장치를 제공한다. 개구수가 0.85±0.1인 렌즈(12,14)에 의해 집광되고, 파장이 405±5nm인 빛(LB)이 조사되어서 기록 또는 재생이 행해지고, 표면에 홈(2)이 형성된 기판(1)과, 기판 상에 형성되고, 홈에 따라서 요철형상을 갖는 광학기록층(3)과, 광학기록층 상에 형성된 광투과성의 보호막(4)을 가지고, 보호막 측에서 광학기록층에 기록 또는 재생용의 빛이 조사되어서 이용되고, 기록 또는 재생용의 빛의 조사측에서 먼 측인 요철형상의 오목부에 상당하는 부분과, 가까운 측인 볼록부에 상당하는 부분 중의 어느 한쪽의 상기 광학기록층만이 기록영역으로서 이용되고, 트랙피치가 0.32±0.01㎛이고, 볼록부에 대한 오목부의 깊이(D2)가 19~24nm의 범위인 광학기록매체로 한다. The present invention provides an optical recording medium and an optical disc apparatus capable of preventing crosswrite and homogenizing a reproduced signal, and easily ensuring compatibility with a read-only disc. A substrate 1 having a numerical aperture of 0.85 ± 0.1 and condensing, irradiating light LB having a wavelength of 405 ± 5nm, recording or reproducing, and having a groove 2 formed on the surface thereof; An optical recording layer 3 formed on a substrate and having an uneven shape along the grooves, and a light-transmitting protective film 4 formed on the optical recording layer, the light for recording or reproduction in the optical recording layer on the protective film side The optical recording layer of any one of the portions corresponding to the concave-convex portions of the concave-convex shape on the side far from the irradiation side of the light for recording or reproduction, and the portions corresponding to the convex portions on the near side is used as the recording area. An optical recording medium having a track pitch of 0.32 ± 0.01 mu m and a depth D2 of the concave portion with respect to the convex portion is in the range of 19 to 24 nm.

Optical data carrier, method for manufacturing an optical data carrier and method for reproduction of information from optical data carrier

FIELD: engineering of optical data carriers. SUBSTANCE: optical data carrier contains main informational area, wherein metallic reflective film is applied to substrate with a track of pits formed as main data, and auxiliary informational area, wherein identification data of carrier utilized for unambiguous identification of optical data carrier are recorded by means of partial removal of metallic reflective film and forming of areas without reflective film. In auxiliary information area track of pits or a groove is formed on substrate, and step of coils of track of pits or groove is not less than 0,24 micrometers, but not more than 0,45 micrometers. EFFECT: high record density with allowed limits of defocusing. 3 cl, 11 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 279 723 (13) C2 (51) ÌÏÊ G11B 7/007 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004133023/28, 16.03.2004 (72) Àâòîð(û): ÊÀÂÀÃÓÒÈ Þêî (JP), ÀÁÅ Ñèíèà (JP), ÒÎÌÈßÌÀ Ìîðèî (JP), ÎÕÍÎ Åéäçè (JP) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 16.03.2004 (73) Ïàòåíòîîáëàäàòåëü(è): ÌÀÖÓÑÈÒÀ ÝËÅÊÒÐÈÊ ÈÍÄÀÑÒÐÈÀË ÊÎ., ËÒÄ. (JP) (43) Äàòà ïóáëèêàöèè çà âêè: 27.02.2006 R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 14.04.2003 (ïï.1-20) JP 2003-108549 (45) Îïóáëèêîâàíî: 10.07.2006 Áþë. ¹ 19 2 2 7 9 7 2 3 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: JP 2000-057632 À, 25.02.2000. ÅÐ 1152402 A1, 07.11.2001. RU 2107954 C1, 27.03.1998. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 09.11.2004 2 2 7 9 7 2 3 R U (87) Ïóáëèêàöè PCT: WO 2004/093066 (28.10.2004) C 2 C 2 (86) Çà âêà PCT: JP 2004/003459 (16.03.2004) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. À.Â.Ìèöó (54) ÎÏÒÈ×ÅÑÊÈÉ ÍÎÑÈÒÅËÜ ÇÀÏÈÑÈ, ÑÏÎÑÎÁ ÈÇÃÎÒÎÂËÅÍÈß ÎÏÒÈ×ÅÑÊÎÃÎ ÍÎÑÈÒÅËß ÇÀÏÈÑÈ È ÑÏÎÑÎÁ ÂÎÑÏÐÎÈÇÂÅÄÅÍÈß ÈÍÔÎÐÌÀÖÈÈ Ñ ÎÏÒÈ×ÅÑÊÎÃÎ ÍÎÑÈÒÅËß ÇÀÏÈÑÈ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê ...

Data storage devices and methods

一种数据存储装置，包括：塑料衬底，其具有多个体积(4510，4520)，布置在沿其中的多个垂直堆叠的横向延伸的层(4110)的轨道中；以及多个微全息图(4202，4204)，每个微全息图都包含在对应的一个所述体积中；其中每个所述体积中微全息图的存在与否指示所存储的数据的对应部分。

Optical recording medium

홈이 형성된 기록층을 갖는 광 기록매체가 개시된다. 기록되지 않은 복수의 트랙의 구조는, 주사장치가 푸쉬풀법에 따라 반경방향의 트랙킹 오차신호를 유도할 수 있도록 하여야 한다. 또한, 기록된 복수의 트랙의 구조는, 주사장치가 고주파 위상 검출법에 따라 반경방향의 트랙킹 오차신호를 유도할 수 있도록 하여야 한다. 이를 위해, 홈의 폭과 깊이는 각각, 파장을 기록매체를 주사하는데 사용된 방사빔의 개구수로 나눈 값의 0.3 내지 0.6배의 범위와, 파장을 굴절률로 나눈 값의 1/24 내지 1/7배의 범위를 갖는다. 복수의 기록된 마크 사이에 있는 트랙 상의 영역으로부터 반사된 방사빔과 마크로부터 반사된 방사빔 사이의 위상차는 0.4 내지 2.0 라디안의 범위를 갖는다. An optical recording medium having a grooved recording layer is disclosed. The structure of the plurality of unrecorded tracks should allow the scanning device to derive the radial tracking error signal in accordance with the push-pull method. In addition, the structure of the plurality of recorded tracks should allow the scanning device to induce a radial tracking error signal in accordance with the high frequency phase detection method. To this end, the width and depth of the grooves range from 0.3 to 0.6 times the wavelength divided by the numerical aperture of the radiation beam used to scan the recording medium, and 1/24 to 1/1 of the wavelength divided by the refractive index. It has a range of 7 times. The phase difference between the radiation beam reflected from the area on the track between the plurality of recorded marks and the radiation beam reflected from the mark ranges from 0.4 to 2.0 radians. 광 기록매체, 트랙킹 오차, 푸쉬풀법, 위상 검출법, 주사장치, 위상차, 기록층 Optical record carrier, tracking error, push pull method, phase detection method, scanning device, phase difference, recording layer

Combination fluorescent-reflecting optical data medium and device for its reading

FIELD: information technologies. ^ SUBSTANCE: multilayer optical data medium of ROM-, WORM- and RW-type provides possibility to overlap simultaneously fluorescent and reflective data recording and (or) reading principles in one layer. In such medium information is recorded as pits of various depths in two neighboring interleaved spiral tracks or in one and the same track. Reading of information is performed consequently, i.e. for example fluorescent signal only is read first, then - reflective signal only; or simultaneously by two optical heads: reflective and fluorescent signals are read. ^ EFFECT: increase in density and volume of recorded information. ^ 33 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 353 982 (13) C2 (51) МПК G11B 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006136889/28, 18.10.2006 (24) Дата начала отсчета срока действия патента: 18.10.2006 (43) Дата публикации заявки: 27.04.2008 (72) Автор(ы): Лежнев Алексей Васильевич (RU), Дорожкина Галина Николаевна (RU), Кваша Михаил Юрьевич (RU) (45) Опубликовано: 27.04.2009 Бюл. № 12 (57) Реферат: Изобретение относится к области создания носителей информации, в частности к многослойным оптическим носителям информации. Технический результат повышение плотности и объема записанной информации. Предложен многослойный носитель оптической информации ROM-, WORMи RW-типа, обеспечивающий возможность одновременного совмещения флуоресцентного и отражательного принципов записи и (или) считывания информации на одном слое. Информация в таком носителе записывается в виде пит различной глубины в двух рядом расположенных чередующихся спиралевидных дорожках (треках) или в одном и том же треке. Считывание информации осуществляется последовательно, то есть, например, сначала считывается только флуоресцентный сигнал, а затем только отражательный, либо одновременно двумя оптическими головками: отражательной и ...

Method of reproducing data from optical data medium and device for optical data transfer

FIELD: information technology. ^ SUBSTANCE: optical data medium has an input zone, an output zone and a user data zone in between, in which user data are recorded. Track pitch in part of the input zone is different from that in the rest of the zones of the optical data medium. ^ EFFECT: high reliability and efficiency of reproducing data from optical data medium. ^ 6 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 419 892 (13) C2 (51) МПК G11B 7/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2006126402/28, 20.07.2006 (24) Дата начала отсчета срока действия патента: 02.09.2003 (43) Дата публикации заявки: 27.01.2008 Бюл. № 3 (45) Опубликовано: 27.05.2011 Бюл. № 15 2 4 1 9 8 9 2 R U Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Ю.Д.Кузнецову, рег.№ 595 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: US 5940364 А, 17.08.1999. WO 0021085 A1, 13.04.2000. EP 1134738 A2, 19.09.2001. RU 2032233 C1, 27.03.1995. (54) СПОСОБ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ С ОПТИЧЕСКОГО НОСИТЕЛЯ ИНФОРМАЦИИ И УСТРОЙСТВО ДЛЯ ОПТИЧЕСКОГО ПЕРЕНОСА ДАННЫХ (57) Реферат: Предложены способ воспроизведения данных с оптического носителя информации и устройство для оптического переноса данных. Оптический носитель информации включает в себя вводную зону, выводную зону и зону пользовательских данных между вводной и выводной зонами, в которой записаны пользовательские данные. Шаг дорожки в части вводной зоны отличается от шага дорожки в остальных зонах оптического носителя информации. Техническим результатом является повышение надежности и эффективности воспроизведения данных с оптического носителя. 2 н. и 4 з.п. ф-лы, 4 ил. Ñòð.: 1 ru 2 4 1 9 8 9 2 (73) Патентообладатель(и): САМСУНГ ЭЛЕКТРОНИКС КО., ЛТД. (KR) R U Приоритет(ы): (30) Конвенционный приоритет: 10.09.2002 KR 10-2002-0054756 Номер и дата приоритета первоначальной ...

Optical recording medium

본 발명은 광기록 매체에 관한 것이다. 안내골이 형성되어 있는 기판과 상기 기판 위에 순차적으로 적층되어 있는 금속기록막, 완충층 및 반사층을 포함하는 광기록 매체에 있어서, 상기 안내골의 경사면의 각도(θ)가 30 내지 90°이고, 상기 완충층은 140℃에서 측정된 용융점도값이 10 내지 50,000 Pa.S인 수지로 형성된 것을 특징으로 하는 본 발명의 광기록 매체는 CD와 호환이 가능하고 DVDP에서 재생가능하며, 600㎚ 이상의 파장영역에서 높은 반사율을 가질 뿐만 아니라 색소가 사용되지 않아도 되므로 제조비용이 저렴하다. The present invention relates to an optical recording medium. An optical recording medium comprising a substrate having guide bones formed thereon and a metal recording film, a buffer layer, and a reflective layer sequentially stacked on the substrate, wherein the angle? Of the inclined surface of the guide bone is 30 to 90 °, and The optical recording medium of the present invention is characterized in that the buffer layer is formed of a resin having a melt viscosity value of 10 to 50,000 Pa · S measured at 140 ° C., which is compatible with CD and reproducible in DVDP, in a wavelength range of 600 nm or more. In addition to having a high reflectance, the manufacturing cost is low because no dye is used.

Information storage medium, information reproducing apparatus, and information recording / reproducing apparatus

A basic data structure in a lead-in area is made coincident with each other in all of a read only type, write once type, and a rewritable type. The lead-in area is divided into a system lead-in area and a data lead-in area. A track pit and a pit pitch of pits in the system lead-in area are made longer than those in the data lead-in area. In the system lead-in area, a reproduction signal from a bit is detected in accordance with a Level Slice technique, and, in the data lead-in area and data area, a signal is detected in accordance with a PRML technique. In this manner, in any of the read only type, write once type, and rewritable type, there can be provided an information recording medium and an information reproducing apparatus or information recording and reproducing apparatus therefor, capable of a stable reproduction signal from a lead-in area of the write once type recording medium while maintaining format compatibility.

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

本发明的信息记录媒介，包含：多个记录层；和盘信息区，其中存储有关所述多个记录层的盘信息；其中所述盘信息区设置在作为所述多个记录层中一个记录层的第一记录层和作为所述多个记录层中另一个记录层的第二记录层中，其中所述盘信息区的磁道斜度或凹坑斜度大于记录区的磁道斜度或凹坑斜度，而且，其中所述盘信息区设置在光盘的最内圈和/或在光盘的最外圈。本发明还提供了适用于这种信息记录媒介的记录/再现装置和记录/再现方法。

Data reproduction device

FIELD: information technology. ^ SUBSTANCE: device for reproducing data from an optical recording medium has a reproduction module for reproducing data and a controller for controlling the reproduction module. The device reproduces data from the recording medium which has an input region. Part of the input zone has a fist track spacing and the remaining part has a second track spacing. ^ EFFECT: high reliability and efficiency of reproducing. ^ 5 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 416 828 (13) C2 (51) МПК G11B 7/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2006126397/28, 20.07.2006 (24) Дата начала отсчета срока действия патента: 02.09.2003 (43) Дата публикации заявки: 27.01.2008 Бюл. № 3 (45) Опубликовано: 20.04.2011 Бюл. № 11 2 4 1 6 8 2 8 R U Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Ю.Д.Кузнецову, рег.№ 595 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: US 5940364 А, 17.08.1999. WO 0021085 A1, 13.04.2000. EP 1134738 A2, 19.09.2001. RU 2032233 C1, 27.03.1995. (54) УСТРОЙСТВО ВОСПРОИЗВЕДЕНИЯ ДАННЫХ (57) Реферат: Предложено устройство воспроизведения данных с оптического носителя. Оно содержит модуль воспроизведения для воспроизведения данных и контроллер для управления модулем воспроизведения. Устройство воспроизводит данные с носителя, содержащего вводную область. При этом часть вводной зоны имеет первый шаг дорожки, а остальная часть вводной зоны - второй шаг дорожки. Техническим результатом изобретения является повышение надежности и эффективности воспроизведения. 4 з.п. ф-лы, 4 ил. Ñòð.: 1 ru 2 4 1 6 8 2 8 (73) Патентообладатель(и): САМСУНГ ЭЛЕКТРОНИКС КО., ЛТД. (KR) R U Приоритет(ы): (30) Конвенционный приоритет: 10.09.2002 KR 10-2002-0054756 (62) Номер и дата подачи первоначальной заявки, из которой данная заявка выделена: 2005106362 02.09.2003 (72) ...

COMBINED FLUORESCENT-REFLECTIVE OPTICAL INFORMATION MEDIA AND DEVICE FOR ITS READING

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2006 136 889 (13) A (51) ÌÏÊ G11B 7/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006136889/28, 18.10.2006 (71) Çà âèòåëü(è): ÇÀÎ "Êîíñòåëëåéøí 3 Äè Âîñòîê" (RU) (43) Äàòà ïóáëèêàöèè çà âêè: 27.04.2008 Áþë. ¹ 12 (72) Àâòîð(û): Ëåæíåâ Àëåêñåé Âàñèëüåâè÷ (RU), Äîðîæêèíà Ãàëèíà Íèêîëàåâíà (RU), Êâàøà Ìèõàèë Þðüåâè÷ (RU) R U Àäðåñ äë ïåðåïèñêè: 127055, Ìîñêâà, óë. Îáðàçöîâà, 13, êîðï.10, ÇÀÎ "Êîíñòåëëåéøí 3 Äè Âîñòîê", Ä.Â. Ïåáàëê 2 0 0 6 1 3 6 8 8 9 R U Ñòðàíèöà: 1 RU A (57) Ôîðìóëà èçîáðåòåíè 1. Îïòè÷åñêèé íîñèòåëü èíôîðìàöèè, âêëþ÷àþùèé ïðîçðà÷íûå äë çàïèñûâàþùåãî, ñ÷èòûâàþùåãî è ñ÷èòûâàåìîãî (ôëóîðåñöåíòíîãî) èçëó÷åíèé ïîäëîæêó è çàùèòíûé ñëîé è ðàñïîëîæåííûé ìåæäó íèìè êàê ìèíèìóì îäèí èíôîðìàöèîííî-íåñóùèé ñëîé, îòëè÷àþùèéñ òåì, ÷òî ïîñëåäíèé âûïîëíåí â âèäå êîìáèíèðîâàííîé ñòðóêòóðû, ïðåäñòàâë þùåé ñîáîé êàê ôëóîðåñöåíòíûå, òàê è îòðàæàòåëüíûå èíôîðìàöèîííîíåñóùèå ìèêðîîáëàñòè (ïèòû) èëè íåïðåðûâíûå ìèêðîêàíàâêè (òðåêè), ðàñïðîñòðàí þùèåñ ïî ñïèðàëè îò öåíòðà ê ïåðèôåðèè. 2. Îïòè÷åñêèé íîñèòåëü ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî îí èìååò íåñêîëüêî èíôîðìàöèîííî-íåñóùèõ ñëîåâ. 3. Îïòè÷åñêèé íîñèòåëü ïî ï.2, îòëè÷àþùèéñ òåì, ÷òî èíôîðìàöèîííî-íåñóùèå ñëîè îáúåäèíåíû ìåæäó ñîáîé ïðîçðà÷íûìè äë çàïèñûâàþùåãî, ñ÷èòûâàþùåãî è ñ÷èòûâàåìîãî (ôëóîðåñöåíòíîãî) èçëó÷åíèé ðàçäåëèòåëüíûìè ñëî ìè. 4. Îïòè÷åñêèé íîñèòåëü ïî ï.4, îòëè÷àþùèéñ òåì, ÷òî â êà÷åñòâå ðàçäåëèòåëüíûõ ñëîåâ èñïîëüçóþòñ ïîëèìåðíûå ñëîè. 5. Îïòè÷åñêèé íîñèòåëü ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî ïîêàçàòåëè ïðåëîìëåíè îïòè÷åñêîé ñðåäû ôëóîðåñöåíòíûõ è îòðàæàòåëüíûõ èíôîðìàöèîííûõ ïèò èëè èíôîðìàöèîííûõ ôëóîðåñöåíòíûõ è îòðàæàòåëüíûõ äîðîæåê (òðåêîâ) îòëè÷íû îò ïîêàçàòåë ïðåëîìëåíè ðàçäåëèòåëüíîãî ñëî . 6. Îïòè÷åñêèé íîñèòåëü ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî íà ïîâåðõíîñòü èíôîðìàöèîííîíåñóùåãî ñëî íàíîñèòñ ÷àñòè÷íî îòðàæàþùåå ìåòàëëè÷åñêîå, ïîëóïðîâîäíèêîâîå èëè äèýëåêòðè÷åñêîå ïîêðûòèå. 7. ...

Multi-layered phase-change optical recording medium

A multi-layered phase-change optical recording medium having a first substrate and a second substrate, and a plurality of information layers, wherein each of thermal diffusion layers of information layers other than an information layer disposed at the innermost side as viewed from the first substrate side has In oxide, Zn oxide, Sn oxide and Si oxide, and when the contents of thereof are represented by 'a', 'b', 'c' and 'd' [mol%] respectively, the following requirements are satisfied, and when the refractive index of the first and second substrates was represented by 'n', the laser light wavelength is represented by ' ' and the depth of the groove guide of the first and second substrates is represented by H, the H satisfied the following requirement, 3 ≤ a ≤ 50 0 ≤ d ≤ 30 a + b + c + d = 100 λ/17n ≤ H ≤ λ/11.5n.

Optical disk substrate and lightguide plate

Optical disk substrate and lightguide plate

An optical disk substrate and a light guide plate which are formed from a resin composition comprising 0.1 to 20 parts by weight of compound represented by the following formula (I): based on 100 parts by weight of polycarbonate resin. There can be provided an optical disk substrate formed from the resin composition of the present invention, particularly an optical disk substrate which allows the shape of a stamper to be transferred thereon with high precision and hardly undergoes warpage caused by environmental changes as a high density recording medium, and a light guide plate which has little uneven brightness and hardly undergoes warpage.

Optical disk substrate and lightguide plate

An optical disk substrate and a light guide plate which are formed from a resin composition comprising 0.1 to 20 parts by weight of compound represented by the following formula (I): based on 100 parts by weight of polycarbonate resin. There can be provided an optical disk substrate formed from the resin composition of the present invention, particularly an optical disk substrate which allows the shape of a stamper to be transferred thereon with high precision and hardly undergoes warpage caused by environmental changes as a high density recording medium, and a light guide plate which has little uneven brightness and hardly undergoes warpage.

Optical head, recording and / or reproducing device

Information recording media, a method for recording/reproducing information, an apparatus for recording/reproducing information

어떤 정보면에 광이 조사되어 있는지를 재빠르게 판단하여, 정확하게 정보를 기록·재생할 수 있는 다층 정보 기록 매체 및 다층 정보 기록 매체의 기록·재생 방법, 기록·재생 장치를 제공한다. 광 조사에 의해 정보가 기록 또는 재생되는 복수의 층(2,4,6,8)에 연속 또는 불연속 홈에 의해 형성되는 요철의 형상 및/또는 요철의 홈의 길이 방향의 변화의 방법, 예를 들면 요철의 깊이 및/또는 폭, 요철의 사행의 진폭 또는 주기를 층에 따라 다르게 한다. A multi-layered information recording medium capable of quickly determining which information surface is irradiated with light, and capable of accurately recording and reproducing information, and a method of recording and reproducing a multi-layered information recording medium and a recording and reproducing apparatus. A method of changing the shape of the irregularities formed by continuous or discontinuous grooves in the plurality of layers 2, 4, 6 and 8 in which information is recorded or reproduced by light irradiation and / or the longitudinal direction of the grooves of the irregularities, for example For example, the depth and / or width of the irregularities and the amplitude or period of meandering of the irregularities vary from layer to layer. 사행, 요철, 주파수, 워블 Meander, irregularities, frequency, wobble

Optical information medium

본 발명에 따르면, 광 정보 매체는 기록 광을 투과하는 투광성 기판(1)과, 이 투광성 기판(1)상에 형성된 기록층(12)과, 이 기록층(12) 위에 형성되고, 재생 광을 반사하는 반사층(13)을 갖고, 상기 투광성 기판(1)으로부터 입사시킨 기록 광에 의해, 광학적으로 판독 가능한 신호를 기록한다. 이 광 정보 매체는 투광성 기판(1)의 기록층(12)이 형성되는 면측에 나선형의 트랙킹 가이드(3)를 갖고, 이 트랙킹 가이드(3) 사이의 랜드(8)에 트랙킹 가이드(3)의 어드레스 등의 섹터 정보를 나타내는 랜드 프리피트(6)가 형성되어 있고, 이 랜드 프리피트(6)의 길이를 최소 피트 길이의 50∼83%, 1.5∼2.5 채널 클럭분의 길이로 한다. 또한, 랜드 프리피트(6)에 있어서의 기록층(12)의 막 두께가, 트랙킹 가이드(3)에 있어서의 기록층(12)의 막 두께와 상이하게 한다. According to the present invention, an optical information medium includes a light transmissive substrate 1 that transmits recording light, a recording layer 12 formed on the light transmissive substrate 1, and formed on the recording layer 12, and reproduces the reproduced light. An optically readable signal is recorded by the recording light incident on the light-transmitting substrate 1 having the reflective layer 13 that reflects. This optical information medium has a helical tracking guide 3 on the side of the surface on which the recording layer 12 of the light transmissive substrate 1 is formed, and on the land 8 between the tracking guides 3, Land prepits 6 representing sector information such as addresses are formed, and the lengths of the land prepits 6 are 50 to 83% of the minimum pit length and 1.5 to 2.5 channel clock lengths. In addition, the film thickness of the recording layer 12 in the land prepit 6 is different from the film thickness of the recording layer 12 in the tracking guide 3.

Optical recording medium, optical recording medium manufacturing method, and optical recording medium reproducing method

광 기록 매체는, 주 데이터로서 피트열이 형성된 기판 상에 금속 반사막을 형성한 주 정보 영역과, 상기 금속 반사막을 부분적으로 제거하여 반사막 제거 영역을 복수개 형성함으로써 광 기록 매체를 개별적으로 식별하기 위한 매체 식별 정보를 기록한 부 정보 영역을 갖고, 상기 금속 반사막에 대하여 광 빔을 조사함으로써 정보를 재생하는 광 기록 매체로서, 상기 부 정보 영역에서 상기 기판 상에 피트열 또는 안내홈이 형성되고, 상기 피트열 또는 안내홈의 트랙 피치는 0.24㎛ 이상 0.45㎛ 이하이다. An optical recording medium is a medium for individually identifying an optical recording medium by forming a main information area in which a metal reflection film is formed on a substrate on which a pit array is formed as main data, and a plurality of reflection film removal areas by partially removing the metal reflection film. An optical recording medium having a sub information area in which identification information is recorded and reproducing information by irradiating a light beam to the metal reflective film, wherein the pit rows or guide grooves are formed on the substrate in the sub information areas, and the pit rows. Alternatively, the track pitch of the guide grooves is 0.24 µm or more and 0.45 µm or less.

Method for reproducing optical disc and optical reproducing apparatus using the same

광디스크 재생 방법 및 이를 채용한 광디스크 재생 장치가 개시되어 있다. 개시된 광디스크 재생 방법은, 물리적 규격이 서로 다른 복수의 영역을 갖는 광디스크에 기록된 정보를 재생하는 방법으로서, 물리적 규격이 서로 다른 영역별로 광빔의 스폿 사이즈를 달리하여 정보를 읽어들이는 것을 특징으로 한다. 이와 같은 재생 방법은, 물리적 규격이 서로 다른 복수의 영역을 갖는 광디스크를 재생하는 과정에서 발생되는 각 영역에서의 재생성능 차이를 최소화하여, 광디스크 전 영역에서 안정되게 재생하는 것을 가능하게 한다. Disclosed are an optical disc reproducing method and an optical disc reproducing apparatus employing the same. The disclosed optical disc reproducing method is a method of reproducing information recorded on an optical disc having a plurality of regions having different physical standards, characterized in that the information is read out by varying the spot size of the light beam for each region having different physical standards. . Such a reproduction method minimizes the difference in the reproduction performance in each region generated in the process of reproducing an optical disc having a plurality of regions having different physical standards, thereby making it possible to stably reproduce the entire optical disc.

Manufacture of fine granular alloy powder

(57)【要約】 【課題】 フォーマットの異なるディスクプレーヤーに 互換採用しうる光ディスクを提供する。 【解決手段】 入射光の透過される透明基板３１と、情 報信号の記録される情報記録面を有し、記録された情報 が第1波長の光により再生される第1記録層３３と、入射 光を、波長領域に応じて光の透過率を異にして前記第1 波長の光は大部反射させ、第2波長の光は大部透過させ る半透膜３５と、これを透過した光が透過され、間隔を 保つスペーサ３９と、情報信号の記録される情報記録面 ４６を有し、記録された情報が半透膜３５を透過した第 2波長の光により再生される第2記録層４５と、スペーサ ３９と第2記録層４５との間に形成され、第2記録層４５ の情報記録面に集束された光を反射させる反射膜を含ん でなる。

Information recording medium and information recording device

본 발명은 에너지 빔의 조사에 의해 정보의 기록에 이용되는 정보 기록 매체를 특징으로 한다. 정보 기록 매체는 홈 형상의 정보 기록 트랙을 지니고, 기록층과, 열 확산 제어층과 열 확산층을 구비하고, 기록층의 막 두께가 정보 기록 트랙 사이의 단차 이하이며, 열 확산 제어층의 막 두께는 상기 정보 기록 트랙의 홈 깊이 이상이다. 이 구성에 의해, 정보 기록 매체를 트랙 피치가 레이저 빔 스폿 직경의 70% 이하가 되는 고밀도 기록에 이용하여도, 크로스 소거가 발생되지 않는다. The present invention is characterized by an information recording medium used for recording information by irradiation of an energy beam. The information recording medium has a groove-shaped information recording track, and includes a recording layer, a heat diffusion control layer and a heat diffusion layer, wherein the film thickness of the recording layer is equal to or less than a step between the information recording tracks, and the film thickness of the heat diffusion control layer. Is greater than or equal to the groove depth of the information recording track. With this configuration, even when the information recording medium is used for high density recording in which the track pitch becomes 70% or less of the laser beam spot diameter, cross erase is not generated.

Optical disc recording and / or reproducing apparatus and recording and / or reproducing method thereof

A data recording and/or playing method for recording or playing data to or from an optical disc having a first recording area, where a frame sync signal and the data are recorded, and a second recording area, where a predetermined pattern is preformed, and having address data recorded therein, while rotating the optical disc by a rotation drive unit. The optical disc rotated by the rotation drive unit is scanned by a head unit, and when the head unit is scanning the first recording area, the rotation drive unit is controlled in a first rotation control mode. When the head unit is scanning the second recording area, the rotation drive unit is controlled in a second rotation control mode.

Optical recording medium

정보의 재생시 파형 왜곡이 없는 판독 신호를 제공할 수 있는 광학 기록 매체. 광학 기록 매체는 정보 데이터를 수반하는 정보 피트가 형성되는 그루브 정보 트랙, 및 그루브 정보 트랙에 연결된 복수의 미리 형성된 랜드 프리피트가 제공된 랜드 프리피트 트랙을 포함한다. 상기 그루브 정보 트랙과 상기 랜드 프리피트 트랙은 교대로 배열된다. 상기 그루브 정보 트랙은 랜드 프리피트가 존재하지 않는 구간보다 랜드 프리피트가 존재하는 각 구간의 적어도 일부에서 더 좁은 트랙 폭을 갖는다.

Optical disk and method and apparatus for recording and then playing information back from that disk

一种直径至少140mm厚度1.2mm±0.1mm的光盘，有多条记录轨迹，其上记录有代表信息的压刻凹痕的数据，其轨距在0.646μm至1.05μm范围；轨迹分为引入区、节目区和引出区。数据包括记录在至少一条目录(TOC)轨迹内多个区段上的TOC信息表和用户轨迹内多个区段上的用户信息；TOC信息包括记录在用户轨迹中起始区段的地址。数据(用户信息和TOC信息)按照有至少8个奇偶校验码元的长距纠错码编码，且被游程有限(RLL)方式调制。

Optical information recording medium and its recording/ reproducing method

(57)【要約】 【課題】 ランド＆グルーブ記録におけるクロストーク が小さく、高密度の情報記録が可能な反射率増加型の光 学的情報記録媒体を提供する。 【解決手段】 グルーブ３と、隣接するグルーブ間のラ ンド４とを有する基板１と、基板１上に設けられ、光ビ ームの照射によって反射率が変化する記録層２とを備え た記録媒体において、記録後の反射率が記録前の反射率 よりも大きく、光ビームの波長をλ、基板１の屈折率を ｎとして、グルーブ３の深さＤがλ／８ｎ以上３λ／８ ｎ以下の範囲となり、かつ、記録後の反射光の位相φ 1 と記録前の反射光の位相φ 0 との差Δφ＝φ 1 −φ 0 を （−０．１＋２ｍ）π以上（０．１＋２ｍ）π以下（但 し、ｍは整数）の範囲となるように設定する。

Optical recording medium, master disc for manufacturing optical recording medium, and device and method for manufacturing master disc for manufacturing optical recording medium

얇으면서도 소정의 폭 이상의 넓은 U자형의 단면형상의 그루브가 형성된 고밀도 기록가능 광기록 매체, 그 광기록 매체 제조용 원반, 및 그 제조장치와 제조방법이 제공된다. 제2-1 노광빔(61) 및 제2-2 노광빔(62)은 제1 노광빔과 함께 제2 PBS(47)에서 진행방향이 동일방향이 되도록 재합성된다. 이 때, 제2-1 노광빔(61)과 제2-2 노광빔(62)은 각각의 광축이 소정거리를 두고 나란하게 되도록 배열된다. 이에 의해서, 도 3에 모식적으로 도시된 바와 같이, 각각의 빔을 합성하여 형성된 스폿의 폭을 확대할 수 있고, 또한 그 빔에 의한 노광량은 얇은 홈을 형성하는데 적당한 정도로 설정될 수가 있다. . Provided are a high-density recordable optical recording medium having a thin U-shaped cross-section groove of a predetermined width or more, a disk for manufacturing the optical recording medium, and a manufacturing apparatus and a manufacturing method thereof. The 2-1th exposure beam 61 and the 2-2th exposure beam 62 are resynthesized together with the first exposure beam so that the traveling direction is the same in the second PBS 47. At this time, the 2-1st exposure beam 61 and the 2-2th exposure beam 62 are arrange | positioned so that each optical axis may be parallel with a predetermined distance. Thereby, as shown schematically in FIG. 3, the width | variety of the spot formed by combining each beam can be enlarged, and the exposure amount by the beam can be set to an extent suitable for forming a thin groove. . 광기록 매체, 광기록 매체 제조용 원반, 노광빔, 그루브, 피트 Optical recording media, discs for manufacturing optical recording media, exposure beams, grooves, pits

Information recording and playback device

광학 디스크는 140㎜ 이하의 직경과 1.2㎜±0.1㎜두께를 가지며, 다수의 레코드 트랙은 정보를 표시하고 0.646㎛와 1.05㎛ 간의 범위에 있는 트랙 피치를 나타내는 양각된 피치로서 상기 트랙상에 레코드된 데이타를 가지며, 상기 트랙은 리드-인 영역, 프로그램 영역 및, 리드-아웃 영역으로 나뉘어진다. 데이타는 적어도 하나의 TOC 트랙내의 다수의 섹터에 레코드된 목차(TOC) 정보 및 유저 트랙내의 다수의 섹터에 레코드된 유저 정보를 포함하는데, 상기 TOC 정보는 유저 트랙에 레코드된 스타트 섹션의 어드레스를 포함한다. 상기 데이타(유저 및 TOC 정보 둘다)는 적어도 8개의 패리티 심볼을 가진 장거리 에러 정정 코드로 엔코드되고, 실행 길이 제한(RLL) 변조된다.

Multi-layer optical disk and method of producing multi-layer optical disk

광헤드에 의해 정보의 기록 및/또는 재생이 행해지는 복수의 정보 기록층을 구비한 다층 광디스크이다. 복수의 정보 기록층은 중간층을 거쳐 적층되어 있고, 각 정보 기록층은 사행하는 트랙 그루브를 갖고 있다. 복수의 정보 기록층 중, 적어도 1층의 정보 기록층에 있어서의 트랙 그루브의 형상 요소(사행량 W1, W2, 트랙 그루브의 깊이 및/또는 트랙 그루브의 측면 경사 각도 등)는 다른 정보 기록층에 있어서의 트랙 그루브의 형상 요소와는 다르게 되어 있다. 이에 따라, 각 정보 기록층으로부터 양호한 신호가 재생된다. It is a multilayer optical disc having a plurality of information recording layers on which information recording and / or reproduction is performed by an optical head. A plurality of information recording layers are laminated via an intermediate layer, and each information recording layer has a track groove that meanders. Of the plurality of information recording layers, the shape elements of the track grooves (meaning amounts W1 and W2, the depth of the track grooves and / or the lateral inclination angle of the track grooves, etc.) in the at least one information recording layer are assigned to the other information recording layers. It differs from the shape element of the track groove in this case. As a result, a good signal is reproduced from each information recording layer.

OPTICAL MEDIA

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2005 106 362 (13) A G 11 B 7/00 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005106362/28, 02.09.2003 (71) Çà âèòåëü(è): ÑÀÌÑÓÍà ÝËÅÊÒÐÎÍÈÊÑ ÊÎ., ËÒÄ. (KR) (30) Ïðèîðèòåò: 10.09.2002 KR 10-2002-0054756 (43) Äàòà ïóáëèêàöèè çà âêè: 10.09.2005 Áþë. ¹ 25 (86) Çà âêà PCT: KR 03/01793 (02.09.2003) (87) Ïóáëèêàöè PCT: WO 2004/025632 (25.03.2004) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U Ôîðìóëà èçîáðåòåíè 1. Îïòè÷åñêèé íîñèòåëü èíôîðìàöèè, ñîäåðæàùèé ââîäíóþ çîíó, âûâîäíóþ çîíó è çîíó ïîëüçîâàòåëüñêèõ äàííûõ, ñôîðìèðîâàííóþ ìåæäó ââîäíîé è âûâîäíîé çîíàìè, â êîòîðîé çàïèñàíû ïîëüçîâàòåëüñêèå äàííûå, ïðè ýòîì ìêè ñôîðìèðîâàíû â äîðîæêàõ ââîäíîé çîíû, çîíû ïîëüçîâàòåëüñêèõ äàííûõ è âûâîäíîé çîíû, è ïåðâûé øàã äîðîæêè ìåæäó ñîñåäíèìè äîðîæêàìè âî âñåé ââîäíîé çîíå èëè â åå ÷àñòè îòëè÷àåòñ îò âòîðîãî øàãà äîðîæêè ìåæäó ñîñåäíèìè äîðîæêàìè â îñòàëüíûõ çîíàõ îïòè÷åñêîãî íîñèòåë èíôîðìàöèè. 2. Îïòè÷åñêèé íîñèòåëü èíôîðìàöèè ïî ï.1, â êîòîðîì ïåðâûé øàã äîðîæêè áîëüøå âòîðîãî øàãà äîðîæêè. 3. Îïòè÷åñêèé íîñèòåëü èíôîðìàöèè ïî ï. 2, â êîòîðîì ââîäíà çîíà ñîäåðæèò ïåðâóþ ïîäçîíó, â êîòîðîé çàïèñàíà èíôîðìàöè , ñâ çàííà ñ îïòè÷åñêèì íîñèòåëåì èíôîðìàöèè, è âòîðóþ ïîäçîíó, â êîòîðîé çàïèñàíà èíôîðìàöè çàùèòû îò êîïèðîâàíè , ïðè÷åì øàã äîðîæêè â, ïî ìåíüøåé ìåðå, îäíîé èç ïîäçîí âë åòñ ïåðâûì øàãîì äîðîæêè. 4. Îïòè÷åñêèé íîñèòåëü èíôîðìàöèè ïî ï. 3, â êîòîðîì îòíîøåíèå ñèãíàëîâ îøèáêè òðåêèíãà, çàðåãèñòðèðîâàííûõ â, ïî ìåíüøåé ìåðå, îäíîé èç ïåðâîé è âòîðîé ïîäçîí, èìåþùåé ïåðâûé øàã äîðîæêè, ê ñèãíàëàì îøèáêè òðåêèíãà, çàðåãèñòðèðîâàííûì â çîíàõ, èìåþùèõ âòîðîé øàã äîðîæêè, ñîñòàâë åò 1.5 èëè áîëåå. 5. Îïòè÷åñêèé íîñèòåëü èíôîðìàöèè ïî ï. 4, â êîòîðîì îòíîøåíèå äèôôåðåíöèàëüíûõ ñèãíàëîâ îøèáêè îòñëåæèâàíè ôàçû, çàðåãèñòðèðîâàííûõ â, ïî ìåíüøåé ìåðå, îäíîé èç ...

Photorecording medium and photorecording method

通过改变激光束的照射功率在记录层上进行5级以上的多级记录。光记录媒体的记录层上沿着轨距为1～1.5μm的轨道在槽内连续假定虚拟记录单元,对应应记录信息,通过对每个虚拟记录单元将激光束的照射功率和照射时间至少一方调制为5级以上,形成5级以上的不同大小和/或透光率的记录标记,多级调制所有的各个虚拟记录单元的光反射率,将再现时读出激光束的包含记录标记的外侧的虚拟记录单元的整体的反射级变化为5级以上。

Record carrier with an optically readable trackwise-arranged information structure

A record carrier is described with an optically readable trackwise-arranged information structure, and an apparatus for reading said carrier. The distances between the tracks of the information structure vary so that by projecting, in addition to a read spot, at least one address spot to the information structure of a size such that is spans a number of tracks approximately equal the quotient of the average track distance and the amplitude of the track distance variation, the read spot can be rapidly addressed to a specific group of tracks. This is done with the aid of two detectors which are disposed in the path of the address-beam radiation which is diffracted in a first order by the information structure in a direction transverse to the track direction.

Optical recording medium

An optical recording medium of a single plate type capable of recording comprises a transparent resin substrate having a groove of 900-1800 Å in depth and 0.3-0.6 μm in width, a recording layer containing a dye overlying the substrate, a reflective layer overlying the recording layer and a protective layer overlying the reflective layer, the thickness of the recording layer being 800-1250 Å at the groove portion and 500-1100 Å at the land portion.

Optical recording media

내용 없음

HIGH DENSITY OPTICAL STORAGE STRUCTURE

MULTI-TRACK OPTICAL DISC PLAYER / RECORDER

L'invention concerne une structure de disque optique et les moyens de lecture et d'enregistrement dudit disque. Au moins deux pistes sont lues simultanément par le spot de lecture. Les informations stockées sur les éléments codants du disque sont lues en exploitant les composantes longitudinale et transverse du signal modulé par les éléments codants. Le gain de capacité obtenu est d'un facteur deux sans nécessité de recourir à une codification logique supplémentaire et à un traitement complexe et coûteux. Ainsi la capacité d'un Blue Ray Disc peut être portée à 50 Gigaoctets. The invention relates to an optical disc structure and the means for reading and recording said disc. At least two tracks are read simultaneously by the reading spot. The information stored on the coding elements of the disc is read by exploiting the longitudinal and transverse components of the signal modulated by the coding elements. The capacity gain obtained is by a factor of two without the need for additional logical coding and complex and costly processing. Thus the capacity of a Blue Ray Disc can be increased to 50 Gigabytes.

RECORD CARRIER HAVING OPTICALLY READABLE PHASE STRUCTURE AND DEVICE FOR READING

Optical recording medium

Optical head and information recording/reproducing apparatus

To provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk, low reliability data is recorded in a data area of BCA. Thus, the thickness of a film material for use in a recording layer oriented to BCA data or close to the inner periphery of the storage medium in the vicinity thereof is formed in uniform thickness by using a substrate of the storage medium, the substrate being formed by being suctioned by means of adsorbing mechanisms (56, 71, 72) formed in an arc shape so as to integrated two of the adsorbing mechanisms to be adjacent to each other. Therefore, the information recorded in a BCA (burst cutting area) or recorded close to the inner periphery of the storage medium in the vicinity thereof can be recorded precisely and stably.

System and method for improved data storage

提供用于在存储介质上存储数据的方法(200)。该方法(200)包括接收(202)调制比特流，其中该调制的比特流包括多个比特，其包括1和0的比特状态。该方法(200)还包括二次调制(204)包括1的比特状态的该多个比特中的每个以输出多个二次调制比特。该方法(200)进一步包括在该存储介质中形成(206)多个标记，该标记指示该多个二次调制比特和在该调制比特流中包括0的比特状态的该多个比特中的每个。

Optical record carrier

OPTICALLY EXPLICABLE DISC-SHAPED INFORMATION CARRIER AS INFORMATION STORAGE MEDIUM, DEVICE FOR MANUFACTURING SUCH INFORMATION CARRIER, DEVICE FOR RECORDING INFORMATION IN SUCH A DRIVER INFORMATION AND DEVICE FOR READING THE INFORMATION OF SUCH A BEARER

Le porteur d'information 1 est muni d'une piste spiralée 4 subdivisée en un grand nombre de secteurs 7 par exemple 128 secteurs par révolution de porteurs. Chaque secteur 7 comporte une région d'information utile 9 servant à l'enregistrement d'une information utile codée numériquement ainsi qu'une région d'information de synchronisation 8. Application : appareils d'enregistrement et/ou de reproduction numérique. (CF DESSIN DANS BOPI) The information carrier 1 is provided with a spiral track 4 subdivided into a large number of sectors 7, for example 128 sectors per revolution of carriers. Each sector 7 comprises a useful information region 9 serving for the recording of digitally encoded useful information as well as a synchronization information region 8. Application: digital recording and / or reproduction apparatus. (CF DRAWING IN BOPI)

Optical recording media

一种在信息再现期间可以产生消除波形失真的读信号的光记录介质。该光记录介质包括在其上形成载有信息数据信息坑的凸槽信息轨道，以及带有一些预先形成的与该凸槽信息轨道相连的凸区预置坑的凸区预置坑轨道。可交替排列凸槽信息轨道和凸区预置坑轨道。凸槽信息轨道在至少其中存在凸区预置坑的每个区域的一部分中的轨道宽度要比不存在凸区预置坑的区域的轨道宽度要小。

Optical information recording medium and information recording method

【課題】短波長レーザ光照射による記録時に良好な記録特性を発揮することができ、かつ製造容易なブルーレイ・ディスク構成の光情報記録媒体の提供。 【解決手段】プリグルーブを表面に有する基板の該表面上に、反射層、記録層、バリア層、およびカバー層をこの順に有する光情報記録媒体。記録層は、アゾ化合物ならびにアゾ化合物および金属イオンまたは金属酸化物イオンを含むアゾ金属錯体化合物からなる群から選ばれる少なくとも一種のアゾ色素化合物を含有する。前記アゾ色素化合物は、波長４０５ｎｍにおける消衰係数が０．１５〜０．３の範囲である。バリア層とカバー層との間に、紫外線硬化型組成物に硬化処理を施すことにより形成された２５℃以下のガラス転移温度を有する層を有する。 【選択図】なし

Optical recording medium and reproducing method thereof

Optical recording medium and optical recording method

The object is to provide an optical recording medium that makes it possible to realize multi-level recording in five stages or more with reduced error rates. An optical recording medium (10) is adapted such that information is recorded by forming recording marks on a recording layer (12) that covers grooves (16) of an optical transparent substrate (14). In the recording layer (16), contiguously defined along a feed direction S of irradiation are virtual recording cells (40) which have a given unit length in the feed direction S of irradiation along the groove 16 and a given unit width in the direction orthogonal thereto. In addition, the groove width W is set so that 0.20 × (λ/NA) < W < 0.50 × (λ/NA), where λ is the wavelength of a laser beam to be irradiated with and NA is the numerical aperture of the objective lens for the laser beam in a irradiation optical system. The irradiation time is set in five stages or more to radiate the laser beam, thereby making it possible to record information in multi-levels.

Optical-disk recording and reproducing apparatus and optical disk for recording information on lands and grooves

The optical-disk recording and reproducing apparatus is provided with an optical head, a reproduction circuit, a detector circuit, a servo circuit, a recording circuit, and a controller. The controller among them performs such control that information is recorded and reproduced on only either lands or grooves in a region where file management information is recorded and reproduced, while information is recorded and reproduced on both lands and grooves for a plurality of tracks or for every zone in a data region, in the case of a land and groove recording optical disk. In the case of a land or groove recording optical disk, the controller performs such control that information is recorded and reproduced at alternate tracks in a region where file management information is recorded and reproduced, while information is continuously recorded and reproduced in the data region. As an optical disk, the track pitch in the region where the file management information is recorded and reproduced is made wider than the diameter of the laser beam.

Method for reproducing information from recording medium having grooves and lands as tracks divided into units

A method for reproducing information from an optical medium including a substrate with grooves and lands alternately formed on the substrate in a radial direction. The grooves and the lands both serve as tracks which are divided into units in the circumferential direction. Each unit has a prepit area in a non-groove portion of the substrate with a first prepit being represented as VFO information in the prepit area and a second prepit being represented as address information in the prepit area. The first prepit and second prepit are located on both sides of a center line of one track and are arranged with respect to one another. The method includes irradiating an optical spot on the optical medium, detecting address information, controlling the irradiation position of the optical spot on the basis of the address information and reproducing information.

Tracking method for shallow/deep system optical disk and device therefor

(57)【要約】 【課題】 浅／深グルーブ方式光ディスクを全て的確に トラッキングサーボ制御するための方法及びその装置を 提供することを目的とする。 【解決手段】 光ディスクが浅／深グルーブ方式かを判 別し、この判別結果によりトラッキングエラー信号の位 相を補正し、トラッキングサーボ制御を行う。本トラッ キング装置は、光ディスクからトラッキングエラー信号 を検出する光信号検出部３０と、光信号検出部３０から のトラッキングエラー信号を分析し光ディスクのグルー ブ方式を判別しかつ応ずる制御信号Ｃ１，Ｃ２を発生す るグルーブ方式判別部３２と、グルーブ方式判別部３２ からの制御信号に応じて光信号検出部３０からのトラッ キングエラー信号の位相を補正する位相補正手段３４ と、位相補正されたトラッキングエラー信号を用いてビ ームスポットが的確にトラッキングするようにサーボ制 御するトラッキングサーボ部３６とを備えている。

DISC-SHAPED, OPTICALLY READABLE RECORD CARRIER AS A STORAGE MEDIUM FOR DATA INFORMATION, DEVICE FOR MANUFACTURING SUCH RECORD CARRIER, DEVICE FOR RECORDING DATA INFORMATION RECORDER AND RECORD.

Information recording medium and master exposure apparatus

Optical head and optical disc device

An optical head includes a diffraction element capable of improving the quality of a TE signal by a DPP method even if light amounts of two sub-spots are unbalanced for optical discs having different groove pitches. In a three-beam optical head, a diffraction element is divided in a radial direction of an optical disc into a first area, a second area and a third area, wherein the second area is further divided into a fourth area and a fifth area. The periodic structure of the first area is displaced from that of the fourth area by a ¼ period, the periodic structure of the third area is displaced from that of the first area by a ½ period, and the periodic structure of the fifth area is displaced from that of the third area by a ¼ period and from that of the fourth area by a ½ period.

Optical recorder, mother stamper and optical recorder for manufacturing optical recorder

기록 트랙에 따라 그루브(2)가 형성되며, 소정 파장 λ의 광 L이 조사(照射)되어 기록 및/또는 재생이 행해지는 광학 기록 재생 매체에 있어서, 광학 기록 재생 매체의 광입사면으로부터 그루브(2)에 이르는 매질의 굴절률을 n으로 했을 때, 이 그루브(2)의 위상 깊이 x를, λ/16.14 n≤x≤λ/4.99n으로 하는 동시에, 그루브(2)의 폭 w와 트랙 피치 p의 비 w/p를, 0.391≤(w/p)≤0.594로 하여 구성한다. In the optical recording and reproducing medium in which grooves 2 are formed along the recording track, and light L having a predetermined wavelength λ is irradiated to perform recording and / or reproduction, the grooves are formed from the light incident surface of the optical recording and reproducing medium. When the refractive index of the medium reaching 2) is n, the phase depth x of the groove 2 is λ / 16.14 n ≦ x ≦ λ / 4.99n, and the width w and the track pitch p of the groove 2 are The ratio w / p is set to 0.391≤ (w / p) ≤0.594. 광학 기록 재생 매체, 마더 스탬퍼, 광학 기록 재생 장치 Optical recording and reproducing medium, mother stamper, optical recording and reproducing device

CD, method and device for recording/reading out data thereof

一种直径小于140mm、厚度为1.2mm的光盘，有多个记录轨迹，其上记录有表示信息的凹痕的数据，其轨距在0.646μm至1.05μm范围；轨迹分类引入区、节目区和引出区。数据被记录在一个控制信息区和多个数据轨迹区，控制信息区设置在引入区或节目区内，控制信息区用于存储控制信息，数据轨迹区用于存储用户信息；控制信息记录在处于控制信息区中的第一多个区段中，用户信息记录在处于多个数据轨迹区中的第二多个区段中；用户信息形成为具有至少8个奇偶校验码元的已调长距纠错编码的数据。

Information storage medium, reproducing method and recording method

OPTICAL REGISTRATION MEDIA AND OPTICO REGISTRATION MEDIA REPRODUCTION PROCEDURE.

Un medio de registro óptico, el cuál incluye una área de información principal (21) en la cual una película de la reflexión del metal (2) es formada en un sustrato (1) donde está formada una fila de picaduras como datos principales, y área de la información secundaria (22) en la cual se graba la información de identificación del medio (23) que es utilizada para identificar el medio del registro óptico individualmente retirando la película de la reflexión del metal (2) parcialmente y formando una pluralidad de áreas retiradas de película de reflexión; y en el cual la información es reproducida irradiando la película de la reflexión del metal (2) con un haz de luz, caracterizado porque la altura de la pista de la fila de picaduras es formada en el sustrato (1) en el área de la información principal (21) es de 24 μm o más amplio y 0.43 μm o más estrecho, y la picadura mas corta(11) de la fila de picaduras la cual es formada en el substrato (1) en el área de la información principal (21) es de 0.12 μm o mas largo y 0.21 μm o mas corto, y el material y el grosor de la lamina de reflexión del metal son seleccionados para que cuando la información sea reproducida con un haz de luz teniendo una longitud de onda de 405 nm y un objetivo de lente con una apertura numérica de 0.85, un valor de fluctuación llegue a ser 6.5% o inferior, y en el área de información secundaria (22), una fila de picaduras o un surco es formado en el substrato (1) y la altura de la pista de la fila de picaduras o del surco es 0.24 μm o mas amplio y. An optical recording medium, which includes a main information area (21) in which a film of the reflection of the metal (2) is formed in a substrate (1) where a row of bites is formed as main data, and area of the secondary information (22) in which the identification information of the medium (23) that is used to identify the optical recording medium is recorded individually by removing the reflection film from the metal (2) partially and forming a ...

Optical head and information recording/reproducing apparatus

To provide a recording method and a storage medium for BCA data with high reliability for a storage medium and a method for reproducing BCA data from the storage medium, and an information recording apparatus and an information reproducing apparatus. In a conventional optical disk, low reliability data is recorded in a data area of BCA. Thus, the thickness of a film material for use in a recording layer oriented to BCA data or close to the inner periphery of the storage medium in the vicinity thereof is formed in uniform thickness by using a substrate of the storage medium, the substrate being formed by being suctioned by means of adsorbing mechanisms (56, 71, 72) formed in an arc shape so as to integrated two of the adsorbing mechanisms to be adjacent to each other. Therefore, the information recorded in a BCA (burst cutting area) or recorded close to the inner periphery of the storage medium in the vicinity thereof can be recorded precisely and stably.

Optical recording medium

Optical recording medium

Optical information recording medium

System and method for improved data storage

Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium

一种双层结构相变型光记录介质，包括：基底(1)、反射层(2)、第一保护层(3)、第一记录层(4)、第二保护层(5)、树脂中间层(6)、第三保护层(7)、由Cu或者Cu合金层构成的排热层(8)、第四保护层(9)、第二记录层(10)、第五保护层(11)、以及覆盖基底(12)。高反射部分的反射比与记录之后的调制的乘积为等于或高于用于再现的下限值的值。

CARRIER RECORDING, REPEATING TOOLS AND METHODS FOR RECORDING INFORMATION

Phase transition type optical disk

상변화형 광 디스크에 관한 것으로서, 특히 랜드와 그루브 사이의 높이차를 광학적 노이즈가 최소가 되는 높이차로 변환하고 랜드의 폭과 그루브의 폭을 좁혀 기록마크의 폭과 같도록 함으로써, 인접하는 랜드와 그루브 영역이 멀리 떨어져 정보의 기록 및 소거시 인접 트랙간의 열 전달량이 낮아지므로 기록마크의 모양이 왜곡되거나 기록마크의 끝부분이나 앞부분이 이동하는 크로스토크 현상이 없어지고 이로 인해 랜드 또는 그루브 데이터를 정확하게 기록/재생할 수 있으며, 도한 열적으로 변형이 일어난다 하더라도 기록마크가 유동할 영역이 없으므로 마크의 유동과 모양의 변형을 없애 지터 발생을 줄일 수 있다. In the phase change type optical disk, in particular, the height difference between the land and the groove is converted into the height difference that minimizes the optical noise, and the width of the land and the groove are narrowed to be equal to the width of the recording mark. Since the groove area is far away and the heat transfer between adjacent tracks is lowered when recording and erasing information, there is no distortion of the shape of the recording mark or the crosstalk phenomenon of moving the tip or the front part of the recording mark. Recording / reproducing is possible, and even if thermal deformation occurs, there is no area for the recording mark to flow, so that the jitter can be reduced by eliminating the deformation and deformation of the mark.

REGISTRATION HOLDER, APPLIANCE TO READ A REGISTRATION HOLDER AND APPLIANCE TO WRITE INFORMATION ON A REGISTRATION HOLDER

OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING DEVICE, OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING DEVICE CONTROL METHOD, OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING DEVICE CONTROL PROGRAM, AND RECORDING MEDIUM CONTAINING THE PROGRAM

超解像媒体（１）は、映像または音声等のコンテンツが記録された情報信号領域（１１）と、再生を行うための設定値を調整するための再生設定値調整情報が記録されたテストリード領域（１２）とが設けられている。情報信号領域（１１）に形成された第１プリピット列の最短マーク長は、再生装置が有する光学系解像限界の長さよりも短い。テストリード領域（１２）に記録され、設定値の調整を行う第２プリピット列におけるマーク長の種類は、第１プリピット列におけるマーク長の種類の一部または全部と同じである。また、第２プリピット列は、再生装置が有する光学系解像限界の長さよりも短いマーク長のプリピットを含む。さらに、第１および第２プリピット列におけるマーク長は、３種類以上である。これにより、超解像媒体（１）では、媒体ごとに最適な再生を行うことができる。 The super-resolution medium (1) includes an information signal area (11) in which content such as video or audio is recorded, and a test lead in which reproduction setting value adjustment information for adjusting setting values for reproduction is recorded. A region (12) is provided. The shortest mark length of the first prepit row formed in the information signal area (11) is shorter than the optical system resolution limit length of the reproducing apparatus. The type of mark length in the second prepit row recorded in the test lead area (12) and for adjusting the set value is the same as part or all of the type of mark length in the first prepit row. The second prepit row includes a prepit having a mark length shorter than the length of the optical system resolution limit of the reproducing apparatus. Furthermore, the mark lengths in the first and second prepit rows are three or more types. As a result, the super-resolution medium (1) can perform optimum reproduction for each medium.

Optical storage medium, mastering method and apparatus for reading of respective data

The optical storage medium comprises a substrate layer, and a data layer having a mark/space data structure with data arranged in tracks on the substrate layer, , wherein between neighboring tracks alternatingly a groove section or a land section without a groove is arranged. The tracks, groove sections and land sections may be arranged by providing a single spiral, two spirals, or four spirals on the optical storage medium. The optical storage medium is in particular an optical disc comprising a nonlinear layer with a super-resolution structure arranged above the data layer.

Optical information recording medium, bca information recorder, and bca information recording method

【課題】 　多層光学的情報記録媒体において、特定の情報記録層にＢＣＡを形成しようとしても誤って異なる情報記録層にＢＣＡを形成してしまうという問題があった。 【解決手段】 　レーザ光照射により情報の記録あるいは再生を行う光学的情報媒体１において、レーザ光入射面１ａを同一として情報の記録あるいは再生を行う二層以上の記録層１１，１２を有し、何れか一つの記録層１２におけるＢＣＡ用の領域（内周側）２１に幾何学的な凹凸Ｋを形成するとともに、このＢＣＡ領域２１に対応する他の情報記録層１１の対応箇所の領域をミラー面とする。そして、フォーカスサーボ投入時に幾何学的な凹凸Ｋの存在を確認することで所望の情報記録層を確認でき、誤って他の情報記録層にＢＣＡを形成することを防ぐことが可能となる。

Optical information recording medium and production process thereof

An optical information recording medium production process including a laminated body production step, and any of the following co-adhesion steps: a co-adhesion step including maintaining an inner peripheral face of the cover sheet so as to be at an outer side relative to an inner peripheral face of the substrate, and sticking together the cover sheet and the laminated body; a co-adhesion step including regulating a position of co-adhering using an outer peripheral face of the substrate, and sticking together; a co-adhesion step including placing the cover sheet on a flat table, and sticking together; and a co-adhesion step including, after sticking a cover sheet provided with a release sheet on the laminated body, releasing the release sheet, starting from a protruding portion of the release sheet. Also disclosed is an optical information recording medium produced by any of these processes.

Information recording medium and manufacturing method

Optical information recording medium and tracking servo method for optical information recording medium

Information recording medium and method for recording and reproducing thereof

서보 트랙(servo track)을 포함하고, 이 트랙에 대한 횡단면 형상이 각각 편평한 정부(top)를 갖는 2개의 철부 사이에 제공된 요부(이 요부는 직사각형부를 각는 개방된 사다리꼴의 단면 형상을 갖고 사다리꼴부는 한 쌍의 평행한 대향면 및 사다리꼴의 벽을 구성하는 한 쌍의 경사면을 갖고 상기 평행면 중 사다리꼴부의 저부를 구성하는 한 면은 대향면보다 짧고 직사각형부는 사다리꼴부의 저부를 구성하는 면에 인접하여 있다)를 갖는 프리포맷(preformat)이 표면에 제공된 기판 및 이 기판 표면에 도포액을 도포시켜 형성된 광반사층을 포함하는 광학적 방사빔이 조사될 정보 기록 매체가 기술되어 있다. A recess comprising a servo track, the cross section of the track being provided between two convex portions each having a flat top (the recess has a rectangular cross section with an open trapezoid, each trapezoid being one A pair of parallel facing surfaces and a pair of inclined surfaces constituting a trapezoidal wall, and one of the parallel surfaces constituting the bottom of the trapezoid is shorter than the opposite surface and the rectangular portion is adjacent to the surface constituting the bottom of the trapezoid). An information recording medium to which an optical radiation beam is to be irradiated, comprising a substrate provided with a preformat on its surface and a light reflection layer formed by applying a coating liquid to the surface of the substrate, is described.