34results about "Optical recording systems" patented technology

The present application relates to the technical field of data storage backup, and especially relates to a method for seamlessly recording audio and video based on a double-disc embedded system. Step S1, cache the audio and video information to be recorded; Step S2, load disc A; Step S3, record; Step S4, periodically detect the memory occupation ratio and adjust the corresponding parameters to the corresponding values; Step S5, continue recording disc B and calculate the audio information similarity of disc A, and adjust the corresponding running parameters of the recording unit to the corresponding values during the recording process of disc B according to the similarity; Step S6, send a termination signal to complete the recording. Compared with the prior art, the present application has the beneficial effect that during the recording process of disc A, the central control unit periodically detects the memory occupation ratio in disc A, and adjusts the corresponding parameters to the corresponding values according to the detection results, thereby ensuring the completeness of the recorded data and the recording effect.

To provide a holographic data storage system and a method of exposing an area to a pattern over a sufficient sustaining duration (depending on an output of a beam).SOLUTION: In a method of performing a write operation in a holographic data storage system, a scheduler schedules at least one write operation across several discontinuous write intervals, and, in each of the discontinuous write intervals, a plurality of discontinuous write intervals, in which a region of a holographic recording medium is exposed to an interference pattern resulting from interference between a reference beam and an input beam carrying a set of data has a total duration sufficiently long to cause a sustained state change in the exposed region, thereby the set of data can be recovered from the region by the end of the last write interval of the plurality of discontinuous write intervals.SELECTED DRAWING: Figure 8A

The present invention relates to a method of storing a digital audio signal in a hybrid format and to a method of reading out analog audio information, enhanced analog audio information or digital audio information from a digital audio signal in a hybrid analog digital format.

The purpose of the present invention is to provide a glass substrate for data recording that achieves both processability and long-term storability. The present disclosure relates to a glass substrate which is for data recording and to the inside of which information can be written with a laser, said glass substrate comprising a first main surface and a second main surface opposite from the first main surface, wherein: an outer peripheral end surface that constitutes the outer periphery of the glass substrate is formed between the first main surface and the second main surface; the thickness of the glass substrate is 0.3-5.0 mm; the glass substrate has a glass composition that contains, in molar percentages based on oxides, 55-88 mol% of SiO2, 0-25 mol% of Al2O3, 0-30 mol% of B2O3, 0-25 mol% of an alkali metal oxide, and 0-25 mol% of an alkaline earth metal oxide; and in a region from the first main surface of the glass substrate to a depth of 0.1 μm, the concentration of sodium ions as measured by time-of-flight secondary ion mass spectrometry (TOF-SIMS) is not more than 9,000 ppm.

A data protector according to an embodiment of the present disclosure includes: a data layer configured to record confidential information as a visible image; and one or a plurality of cover layers disposed at least one of above or below the data layer and configured to transition between a color-developed state and a decolored state in a visible wavelength region.

This invention discloses an optical storage method based on a high-speed recording system using a rotating mirror. The method, implemented using a high-speed recording system, includes: 1. Encoding the data to be stored, including data information and recording coordinates, to obtain a corresponding binary code; 2. Adjusting the binary code to obtain a storage code; 3. Calibrating a high-speed digital output card and determining the recording substrate surface; 4. Generating corresponding light intensity waveform data based on the storage code and storing it in the calibrated high-speed digital output card; 5. Calibrating the optical spherical aberration between the objective lens and the recording substrate surface, and controlling the recording laser to perform recording operations in the y-axis direction; 6. Adjusting the focal length offset of the objective lens and repeating step 5 until all storage codes in the z-axis direction are recorded, obtaining three-dimensional volumetric storage data. This invention also provides an optical storage device. The method provided by this invention solves the problem of excessively long data storage time in the prior art, improving the success rate and accuracy of recording.

An information storage method and information storage medium are provided that have improved storage density through a multi-bit coding method. A method for storing information comprises providing a substrate and encoding information on the substrate by using a laser and / or a focused particle beam to form a plurality of recesses in a surface of the substrate, the recesses having different shapes and / or sizes and, optionally, different depths, each recess corresponding to a predetermined information value.

The invention discloses an anti-explosion and anti-adhesion glass optical disc and a manufacturing method, and belongs to the technical field of optical storage. The glass optical disc comprises an optical disc body, the optical disc body is provided with a center hole, the optical disc body comprises a data recording area and an explosion-proof film, and the explosion-proof film is used for wrapping a first circular ring area on the upper surface of the optical disc body, the inner surface of the center hole of the optical disc body and the lower surface of the optical disc body; the inner diameter of the first ring area is equal to the radius of the center hole; wherein the explosion-proof film is a polymer PET film, and the light transmittance of the explosion-proof film is greater than or equal to 90%. The explosion-proof film is adhered to the surface of the center hole of the optical disc, so that the adhesion of the optical disc during stacking can be reduced, the stability of the optical disc is improved, the fragmentation and adhesion risks of the glass optical disc in daily use and storage processes can be effectively reduced, and the service life of the optical disc is prolonged.

Disclosed is a remote transmission controllable external optical disc driver data processing method and device. The method includes: processing optical disc data objects converted by a decoding module by a microprocessor and transmitting the optical disc data objects to a remote server and a mobile terminal to be stored; transmitting the optical disc data objects to be burnt in a local or remote server to a memory chip configured in a storage module; and converting analog signals by the decoding module into digital signals and burning the digitals signal into a blank optical disc. According to the present disclosure, the application efficiency of the optical disc driver device is improved, and the application scenarios are expanded.

A method for writing voxels onto a substrate using a laser writing system includes: forming a first voxel at a first position in the substrate using a first laser pulse; detecting light emitted or scattered by the substrate as a result of the formation of the first voxel; determining whether the detected light satisfies predetermined constraints; and adjusting the amplitude of a second laser pulse if the detected light does not satisfy the predetermined constraints. The light emission or scattering from the substrate as a result of voxel formation is related to the properties of the formed voxel. By monitoring such emission or scattering, it is possible to compensate for changes in the performance of the laser writing system. A laser writing system and a computer program product implementing the method are also provided herein.

The invention provides a high-density volume storage optical disc information read-write device and method. The device comprises a torquer 1, a dual-wavelength dual-objective optical path structure, a compensation lens module, a PZT driver and a PMT array. The dual-wavelength dual-objective optical path structure comprises a servo objective 4 and a read-write objective 5 which are independent, and a rigid connecting mechanism is arranged between the servo objective 4 and the read-write objective 5 and used for ensuring that the motion trails of the servo objective 4 and the read-write objective 5 are synchronous; the compensation lens module is connected with the PZT driver and is used for dynamically modulating the axial focus position of a write-in / read-out light spot; and the PMT array is used for detecting and reading a scattering signal of the light spot 7 and generating servo feedback. According to the device, the data writing speed is increased, meanwhile, accurate servo for reading out the focusing light spot can be completed under the condition that the optical disc is not provided with a reflecting layer, and the device is suitable for various body storage optical discs including but not limited to optical discs made of fluorescent, glass, ceramic and other materials.

A drawing apparatus according to an aspect of the present disclosure includes a light source section and a scanning section. The scanning section irradiates a surface of the recording medium with a plurality of laser beams generated by the light source section. The light source section generates at least one laser beam among the plurality of laser beams to cause a beam shape of each of the laser beams at a position of the recording medium to satisfy a relational expression below, and to cause a length of the beam shape in a direction parallel to a scanning direction of the laser beams to be 0 degrees or more and 20 degrees or less with respect to the scanning direction of the laser beams: Ly×1.1≤Lx<Ly×5.0 d×0.8≤Ly≤d×1.3 Lx: Length of the beam shape in a direction parallel to the scanning direction of the laser beams Ly: Length of the beam shape in a direction orthogonal to the scanning direction of the laser beams d: Pixel size.

This application discloses a servo control method and apparatus for optical storage media, as well as a data read / write apparatus, relating to the field of optical storage technology. In this method, the servo laser position error is compensated by removing the reproduced portion of the position error between the irradiation position of the servo laser on a reference plane and the read insector using a compensation value of the high-frequency reproduced error corresponding to the read / write position in the optical storage medium, in order to reduce the current position error. Based on the reduced position error, the objective lens shared by the servo laser and the read / write laser is controlled to remove the compensated position error and improve the control accuracy of the tracking servo control of the servo laser.

To provide a laser recording device capable of high-quality color reproduction. [Solution] A laser recording apparatus according to one embodiment for recording an image on a medium having multiple color-emitting layers that emit different colors when exposed to light of different wavelengths comprises a plurality of laser units provided corresponding to the plurality of color-emitting layers, each laser unit emitting laser light of a wavelength that causes the corresponding color-emitting layer to emit color. One pixel is formed by multiple adjacent color marks in the in-plane direction of the medium.

The recording medium in one aspect of the present disclosure has a recording layer. The recording layer contains an aliphatic polymer; and a multi-photon absorbing compound having a multi-photon absorption property, which contains at least one selected from the group consisting of carbon-carbon double bond, carbon-nitrogen double bond, and carbon-carbon triple bond. When the thickness of the recording layer is 100 μm, the transmittance of the recording layer to light of wavelength 405 nm in the thickness direction is 80% or more.

A method for writing data to a transparent substrate includes forming a first voxel by focusing a first laser pulse at a first location within the transparent substrate, and forming a second voxel by focusing a second laser pulse at a second location within the transparent substrate. The first and second laser pulses have different amplitudes, thereby resulting in first and second voxels having different intensities. A system useful for implementing this method, an optical data storage medium obtained by this method, and a method for reading data from the optical data storage medium are also provided.

The application discloses a two-dimensional alternate translation multi-point parallel data recording and reading system of an optical head. The optical head and a storage medium are oppositely arranged. The storage medium has a boundary area, a plurality of recording areas and an inter-track area. The recording area is rectangular. The optical head is two-dimensionally translated along the horizontal and vertical directions of the recording area. Meanwhile, the optical head sequentially records or reads data recording point arrays in a data signal area according to frames. The data signal area is continuously arranged along the horizontal direction on the recording area. A plurality of data recording point data can be recorded or read at a time, so that the reading and writing speed is effectively improved. In particular, the plurality of recording areas and the inter-track area can be divided into at least two areas. One optical head is arranged in each area. The optical heads are alternately moved and read and written at different times. The data is continuously recorded or read, so that the reading and writing speed is further improved. Since the current frame data recording point array is inserted into the gap of the previous frame data recording point array from the second recording, the storage density is improved while the reading and writing speed is improved.

The application discloses a data migration method based on a blue-ray disc library, relates to the technical field of data migration, and determines data to be migrated as migration data, and transmits the migration data in the original storage medium to a temporary storage area of a blue-ray disc library server through a data transmission channel; after the migration data is received, the migration data is uploaded to a specified storage position of the blue-ray disc library server, and a burning traction item corresponding to the specified storage position is set. The application can sequentially store and manage the migration data through a traction chain, can realize the orderly burning of a large amount of migration data, avoids data confusion, can safely acquire the migration data through a traction package, the traction chain and the corresponding traction package can guarantee the safety of the migration data, reduce the burning abnormality caused by data changes due to network interference, and have a good migration data management effect.

The purpose of the present disclosure is to provide a glass substrate suitable for a recording medium inside of which information is inscribed by a laser. The present disclosure relates to a glass substrate for data recording inside of which information can be inscribed by a laser, the glass substrate having a first main surface and a second main surface facing the first main surface. An outer peripheral end surface constituting the outer periphery of the glass substrate is formed between the first main surface and the second main surface. The thickness of the glass substrate is 0.3-5.0 mm. The glass substrate has a glass composition, in mol% based on oxides, of 55-88 mol% of SiO2, 0-25 mol% of Al2O3, 0-30 mol% of B2O3, 0-25 mol% of an alkali metal oxide, and 0-25 mol% of an alkaline earth metal oxide. The glass substrate has an absorption coefficient A355 at a wavelength of 355 nm of 0.7 cm−1 or greater and an absorption coefficient A1064 at a wavelength of 1064 nm of 0.6-2.0 cm−1.

A nonlinear light absorbing material according to one embodiment of the present disclosure contains, as a main component, a compound that is represented by formula (1).　In formula (1), each of R1 to R6 independently represents a hydrocarbon group.

The invention belongs to the technical field of optical storage, and discloses a super-resolution optical hard disk (HORD) device based on a nanometer tip array. According to super-resolution recording, the size of a near-field light spot is determined by the distance between a nanometer tip and a disk (not the laser wavelength), the typical size can reach 10-50 nm, the resolution is improved by 5-10 times compared with traditional optical storage (larger than or equal to 200 nm), and the optical storage efficiency is greatly improved. The capacity of a single disc can reach a TB level (the capacity of a traditional blue-ray disc is about 100GB); the aerodynamic (or electromagnetic) suspension structure of the floating block can adapt to a high-speed motion scene (such as a flying mode of a magnetic head in magnetic storage), and dynamic stability of nanoscale spacing is ensured by combining the spacing regulation and control module; and the distance regulation and control module monitors and adjusts the suspension distance (the precision is less than or equal to 1nm) in real time through a sensor, so that the influence of thermal fluctuation and mechanical vibration on near-field light spots is effectively inhibited, and the recording and reading accuracy is ensured.

A method of writing voxels to a substrate using a laser writing system comprises forming a first voxel at a first position in a substrate using a first laser pulse; detecting light emitted or scattered by the substrate as a result of forming the first voxel; determining whether the detected light satisfies a predetermined constraint; and, when the detected light does not satisfy the predetermined constraint, adjusting an amplitude of a second laser pulse. Light emission or scattering from the substrate as a result of forming a voxel is related to the properties of the formed voxel. By monitoring such emission or scattering, it is made possible to compensate for variations in performance of the laser writing system. Also provided herein are a laser writing system and computer program product which implement the method.

The invention discloses an optical storage information parallel reading optical system which comprises a uniform light illumination module, an optical crosstalk elimination module, a segmentation area module and a wavelength spectroscope arranged between a first collimating mirror and an energy spectroscope. Emitting a light beam to the energy spectroscope so as to provide a uniform illumination light source for a plurality of optical disc information points on the optical disc to be read and generate diffuse reflection to form information light with optical disc information crosstalk; an optical crosstalk elimination module is used for processing information light, performing crosstalk elimination on adjacent information points to obtain a plurality of crosstalk-eliminated information light, and imaging the crosstalk-eliminated information to a photoelectric conversion device PDIC to realize parallel reading of optical storage information. The problem that a traditional optical storage reading method is low in reading efficiency is solved.

A method of performing a write operation in a holographic data storage system, in which schedule schedules at least one write operation across multiple non-contiguous write intervals, the write operation pertaining to a set of data to be stored in a region of a holographic recording medium. In each of the non-contiguous write intervals, the region of the holographic recording medium is exposed to an interference pattern caused by interference between a reference beam and an input beam carrying the set of data. The multiple non-contiguous write intervals have a total aggregate duration of sufficient length to cause a persistent state change in the exposed region, such that the set of data is recoverable from that region by the end of a final write interval of the multiple non-contiguous write intervals.

The present invention relates to a method of storing a digital audio signal in a mixed format and to a method of reading analog audio information, enhancing analog audio information or digital audio information from a digital audio signal in a mixed analog digital format.

The invention discloses a data migration method based on a blue-ray disc jukebox, which relates to the technical field of data migration, and comprises the following steps: determining data to be migrated as migration data, and transmitting the migration data in an original storage medium to a temporary storage area of a blue-ray disc jukebox server through a data transmission channel; and after receiving of the to-be-migrated data is completed, uploading the to-be-migrated data to a specified storage position of the blue-ray disc jukebox server, and setting a recording traction item corresponding to the specified storage position. The migration data can be sequentially stored and managed through the drag chain, a large amount of migration data can be sequentially recorded, data chaos is avoided, the migration data can be safely acquired through the drag packet, the drag chain and the corresponding drag packet can guarantee the safety of the migration data, and the migration data can be safely recorded through the drag chain. And the situation of abnormal burning caused by data change due to network interference is reduced, and a good migration data management effect is achieved.