摘要:
Provided are an optical information storage medium and a method of recording thereon. The optical information storage medium has a lead-in area, a user data area and a lead-out area, and data indicating a maximum and/or a minimum writing speed, maximum and minimum writing speeds, or compatible writing speeds is recorded in a rewritable region of at least one of the lead-in area and the lead-out area. The optical information storage medium and the method of recording on the media enable a disc drive to reliably record data on a disc which cannot achieve a prescribed recording speed due to manufacturing conditions, at an optimal speed considering the pre-recorded writing speed data.
摘要:
In order to perform RAM recording of new information related to ROM information at the position linked to ROM information of an optical information recording medium while continuously reproducing ROM information of the optical information recording medium, there is provided an optical head (5) which irradiates the light to the optical information recording medium (4) having an optical magnetic recording film formed on a substrate where a phase pit is formed, detects the light intensity modulated by the phase pit as a ROM signal from the return light from the optical information recording medium, and detects as a RAM signal a differential amplitude of the component in the polarized direction in which the return light is modulated by the optical magnetic recording film. The ROM signal is read at n-time speed (n>2) and converted into the reference speed and outputted, and input information related to ROM information is recorded as the RAM information in the predetermined address at n-time speed.
摘要:
A high-density magneto-optical recording/reproducing apparatus for recording a mark on a recording medium in such a way that the position of the edge of the mark reproduced from the recording medium may not change. The magneto-optical recording/reproducing apparatus for recording/reproducing an information mark on/from a magneto-optical recording medium comprises means for determining the length of a first recording information mark and means for varying the strength of the recording magnetic field for recording a second information mark depending on the length of the first information mark recorded immediately before the second recording information mark. A high-density magneto-optical recording method is also disclosed.
摘要:
A method of transmitting encrypted data, recording medium including the encrypted data, apparatus for reproducing the same using a local storage and method thereof are disclosed. The present invention includes downloading a data associated with the recording medium to the local storage, constructing a virtual package by binding the downloaded data to a disc package within the recording medium, decrypting an indexing item of an index table within the virtual package using a key within a key file associated with the recording medium, and reproducing the decrypted indexing item, wherein information for solving a mismatch that occurs between the indexing item of the index table and an indexing item of the key file is included in the virtual package. By the present invention, the data associated with the recording medium is downloaded from outside to the local storage while contents provided by a content provider are protected. And, both of the data within the recording medium and the data within the local storage can be efficiently reproduced using a virtual package. Therefore, the present invention can provide more convenient functions to a user.
摘要:
A mobile device comprising: a hard disk (305,310); a motor (302) for spinning the hard disk; and a system for regenerating energy using the hard disk. The system (325) for regenerating energy using the hard disk may include: a switch (325) connected to the motor such that when the switch is in a first position, power flows from a power storage device to the motor to drive the motor and when the switch is in a second position, power flows from the motor based on kinetic energy of the spinning hard disk to the power storage device. The system for regenerating energy using the hard disk may be manufactured/combined with the hard disk and motor separately from the mobile device such that the system for regenerating energy may include the hard disk and motor.
摘要:
The invention relates to a device and a method for producing resist profiled elements. According to the invention, an electron beam lithography system is used to produce an electron beam, the axis of the beam being essentially perpendicular to a resist layer in which the resist profiled element is to be produced. The electron beam can be adjusted in terms of the electron surface dose in such a way that a non-orthogonal resist profiled element can be produced as a result of the irradiation by the electron beam.
摘要:
A dielectric recording / reproducing head (40a) is provided with: a probe (11) for recording / reproducing data in / from a dielectric recording medium (1); and a slider (12) placed so as to surround the probe (11) and containing an electric conductor. It may be provided with a probe supporting device (14) containing an insulating member such as resin materials in the gap between the probe (11) and the slider (12). The probe (11) has a longitudinal shape with a longer length in the width direction of the track (5), and covers the track (5) and one portion of adjacent spaces. The slider (12) can be used, by earthing it, as a return electrode for returning a high-frequency electric field applied from the probe (11) to the dielectric recording medium (1) in order to reproduce a signal. The probe (11) is set not to project from a surface of the slider (12) facing to the dielectric recording medium (1).
摘要:
An illumination device (10) for simulating neon lighting comprising a plurality of space point light sources (24) positioned adjacent a lateral light receiving surface (15) of a substantially rod-like waveguide (12) made of a material that preferentially scatters light entering the light receiving surface such that the light intensity pattern exiting a lateral light emitting surface (13) of the waveguide (12) has a substantially uniform light intensity pattern.