Abstract:
This application relates to the field of optical storage technologies, and discloses a data read/write system and method. The method can be used to improve a read/write speed of optical storage without increasing a rotational speed of an optical storage medium. The system includes an optical deflector and a read/write optical head. The optical deflector is configured to sequentially deflect a first optical signal by a plurality of angles, to obtain a plurality of second optical signals. The read/write optical head is configured to receive the plurality of second optical signals, and separately focus the plurality of second optical signals on the optical storage medium, to implement reading/writing of a plurality of data points.
Abstract:
A heat-reactive resist material contains copper oxide, and silicon or silicon oxide, and is formed so that the content of silicon or silicon oxide in the heat-reactive resist material is 4.0 mol % or more less than 10.0 mol % in terms of mole of silicon. A heat-reactive resist layer is formed using the heat-reactive resist material, is exposed, and then, is developed with a developing solution. Using the obtained heat-reactive resist layer as a mask, dry etching is performed on a substrate with a fluorocarbon to manufacture a mold having a concavo-convex shape on the substrate surface. At this point, it is possible to control a fine pattern comprised of the concavo-convex shape.
Abstract:
Digital optical tape archival storage systems and methods are disclosed. A digital optical tape recorder may simultaneously write data and two or more guide tracks onto a digital optical tape recording medium. A digital optical taper reader may include a camera comprising an array of detectors to capture a two-dimensional image of the digital optical tape recording medium, and an image processor to extract the data from the two-dimensional image. The camera may capture the two-dimensional image of the digital optical tape recording medium without aligning individual data bits recorded on the digital optical tape recording medium to individual detectors within the camera.
Abstract:
Various devices and systems may benefit from enhanced reading of optical media. For example, certain computer systems may benefit from array reading of optical media. An apparatus may include, for example, an array of optical sensors. The array of optical sensors may be configured to read a plurality of parallel linear strips of data from an optical medium.
Abstract:
A data storage and retrieval system includes a head carriage unit having multiple heads disposed at a working surface and a tape drive unit configured to move the tape past the working surface of the head carriage unit in a direction substantially parallel to a tape length. The heads are configured to write primary data tracks to or read primary data tracks from the tape as the head carriage unit rotates and the tape moves past the working surface, the primary data tracks having an arcuate shape and extending substantially along a tape width. The heads are also configured to write at least one secondary data track to or read at least one secondary data track from the tape as the head carriage unit rotates and the tape moves past the working surface, the at least one secondary data track extending substantially along the tape length.
Abstract:
A multi-channel optical recording and/or reproducing apparatus includes an optical pickup including a plurality of light sources, the optical pickup being adapted to emit a plurality of light beams to a corresponding plurality of tracks of an information storage medium and to detect a plurality of light beams reflected by the corresponding plurality of tracks of the information storage medium; and a control signal generating unit to generate a control signal which equalizes and controls aberrations occurring due to a wavelength difference between the plurality of light sources, a displacement difference on an optical axis between the light sources, or a distance between the light sources, based on detection signals generated according to the plurality of reflected light beams.
Abstract:
An optical pickup apparatus (10) for reading data from a plurality of tracks of an optical disc (34) at the same time by focussing spots (M, . . . ) of each light beam on a plurality of tracks, passing the reflected light beams of spots (M, . . . ) sequentially through an objective lens (30), a collimator lens (28), and a focus adjusting lens (50) in this order, and detecting the reflected light beams with photodiodes (52M, . . . ) disposed along a photodiode light reception plane (68). In order to make each reflected light become incident upon each photodiode (52M, . . . ), a case (72) and a bracket (78) are separated from a chassis (70), and support the focus adjusting lens (50) and the photodiodes (52M, . . . ) respectively. The case (72) and bracket (78) are made so that they can be fixed to the chassis (70) at optional positions in a predetermined area along a direction of the optical axis (66). While the case (72) and bracket (78) are moved along the optical axis (66) direction, positions along the optical axis (66) where the reflected light beams are allowed to enter the photodiodes (52M, . . . ) are searched and the case (72) and bracket (78) are fixed to the chassis (70) at the searched positions.
Abstract:
A system and method are described for transfer of data between a memory location and a portable storage, such as an optical disk, at high efficiency data transfer rates. Such transfer rates allow for quick download of large data files containing multimedia data onto an optical storage medium, including handling multiple streams of data simultaneous, wherein the system is capable of adjusting to a failure in the component handling the transfer of the data onto the optical storage medium.
Abstract:
This invention provides a method of acquisition of binary information that has been stored physically in a periodic storage medium. The method, referred to as matrix-method deconvolution (MMD), is useful for use with optical storage media using an optical addressing system that reads and writes binary information in a periodic array of nano-particles. With this MMD method, the density of existing memory systems can be boosted to between 10 and 100 Terabytes of data per cubic centimeter. This matrix-method deconvolution method compensates for the effects of the optical addressing system's point spread function. Prior knowledge of a system's point spread function and inter memory-center spacing is used.
Abstract:
In a write process through channels Ch1, Ch2, and Ch3, the deadline of each channel is set based on the transfer rate variable by the ratio of dummy packets to valid packets, and deadline information is written with write data on a disk. In a read process through a channel Ch4, the deadline is set according to the deadline information read with read data from the disk. Then, data is sequentially processed in order from the data having the earliest deadline. Considering the difference in transfer rate between outer and inner zones on the disk, a write zone is determined. When data is simultaneously recorded through the channels Ch1 and Ch2 on an ASMO in a groove-land record system, the data is sequentially recorded through the channel Ch1 on the groove and through the channel Ch2 on the land.