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7602683 Information recording apparatus and method, information recording/reproducing apparatus and method and computer program  
An information recording apparatus includes: a recording device capable of recording information into a data area of an information recording medium, by irradiating laser light, in...
7602677 Optical disk device  
An optical disk device includes a pickup head configured to record and read data on and from an optical disk, and a recording/reproducing circuit such as a RF amplifier. The optical disk device...
7542388 Recording medium for storing defect management information for recording real time data, defect managing method therefor, and real time data recording method  
A recording medium for storing defect management information to record real time data, a defect managing method therefor, and a method of recording real time data. The recording medium stores...
7453783 Information storage apparatus  
An information storage apparatus records, reproduces and/or erases information with respect to a recording medium. The apparatus includes a servo error generation detector for detecting a...
7437053 Digital video recorder, method of driving the video recorder and program  
A digital video recorder writes data on a selected one of a first storage medium and a second storage medium. The recorder includes an abnormal state detector for detecting any abnormal event that...
7428196 Writing data to an optical disc  
When writing data to an optic disc with a constant linear velocity, and encountering a disc error, data is written into the defect management area of the disc without changing the rotational speed...
7363530 Data recording method and data recording apparatus  
The latest management data recorded in a recording medium is read. Then, it is judged whether the fault is in this latest management data or not. When it is judged the fault is not in this latest...
7339871 Method for accurate positioning of marks and spaces on an optical disc  
An optical disc has spatial features (notches, bumps, etc.) that intentionally distort the analog Read Data signal. For a mark or space that is centered on a spatial feature, the distortion does...
7263043 Optical disk apparatus for optimizing laser power during recording  
An optical disk drive for optimizing laser power to be used at the time of recording operation. In a DVD-R drive and a DVD-RW drive, a controller performs OPC to set recording power and records RMD...
7177249 Method and apparatus for real time recording/playback of data to/from an optical recording medium  
A method for real time recording and playback of data to and from an optical recording medium, and a method for managing a file thereof is disclosed. In the present invention, the host controls...
7170838 Information recording and reproducing apparatus  
An optical information recording and reproducing apparatus that determines the quality of recorded information through a beta value from information on the amplitude of a reproduced signal and if...
7149166 Optical recording system with a built-in jitter detector  
An optical recording system for burning an optical disc includes a housing, a laser pickup installed inside the housing for writing data onto the optical disc according to a write strategy and...
7149163 Recording technique with particular sunchronization data  
Disclosed is a disk-like recording medium, a disk recording apparatus and a disk recording method, and a disk playback apparatus and a disk playback method. Disk ID is recorded over a circle of a...
7149168 Method and apparatus for controlling the intensity of a laser beam used to record/reproduce data to/from an optical disc  
A recording/reproducing apparatus is disclosed which records and reproduces data to and from an optical disc using a laser beam. In accordance with an error rate detected from the data that have...
7145856 Data recording device and controller for data recording device  
A recording interruption-controlling section interrupts recording if vibration is detected in order to complete proper recording by making it possible to interrupt and restart recording in cases...
7133339 Data storage apparatus that either certifies a recording medium in the background or verifies data written in the recording medium  
A data storage apparatus, which can format a recording medium in the background, that verifies data written in a designated region of the recording medium if the designated region has not yet been...
7039913 Optical disc, method of writing to an optical disc, and method of reading from an optical disc  
An ID information, user data, and a control information are disposed each in one block, and coded for error correction. The user data and control information are disposed in an ECC block 1 , while...
7031244 Information recording/reproducing apparatus  
An information recording apparatus and method for recording information of a recording block including a plurality of sectors as one verifying unit into an optical information recording medium, a...
7016279 Method for recording and/or reproducing data on/from recording/recorded medium, reproducing apparatus, recording medium, method for recogizing recording/recorded medium, and method for recording and/or reproducing data for apparatus using recording/recorded medium  
A recording and/or reproducing method for a record medium, comprising the steps of reading address information from a record medium, the record medium having at least a first area and a second...
6925044 Recording control method for optical disk recording and reproducing apparatus  
When during the operation of recording a signal onto a disk the amount of signal data stored in a buffer RAM for temporarily storing a recording signal falls below an interruption set value, the...
6912189 Skip list management for a write-once optical disk  
A method and system for managing a plurality of defects that may cause an error during a write operation in a write-once data storage disk is provided. A host system sends a write command to a disk...
6882612 BCA evaluation device and method for rewritable DVDs with different threshold value pulse signals  
An RF signal is read from a rewritable DVD while rotating the rewritable DVD. The read RF signal is converted to pulse signals according to different threshold values, and the number of pulses of...
6813233 Method for accurate positioning of data marks and spaces on an optical disc  
An optical disc has spatial features (notches, bumps, etc.) that intentionally distort the analog Read Data signal. For a mark or space that is centered on a spatial feature, the distortion does...
6714432 Memory control device  
A memory control device capable of controlling data writing into a buffer memory where the data reproduced from a disk recording medium are stored temporarily is disclosed. The control device...
6532201 Copy protection for optical discs  
An optical disc has spatial features (notches, bumps, etc.) that intentionally cause read errors if arbitrary data is recorded on the disc in an area where the special features are located. The...
6522610 Information recording method and apparatus  
An information recording method, in which when new digital information is employed to update a part of old digital information that has been divided into ECC blocks and stored on an information...
6496458 Synchronized disk recording device having speed variation with recording condition  
When a recording condition judgement section ( 28 ) determines a recording condition of the recording of data onto a disk, and the recording is discontinued in response to the decision, a recording...
6493297 Multibeam optical disk record and reproduction apparatus and method  
Multibeam optical disk record and reproduction apparatus and method, in which at least two light beams generated are concentrated in different positions of on recording tracks of a recording medium...
6442117 Reading/reproducing apparatus having retry arrangement upon failed reading/writing of a signal  
A reproducing apparatus including a reading apparatus for reading signals recorded on a recording medium, a reproducing apparatus for reproducing data from read-out signals from the reading...
6404714 Method and apparatus for recording data on an optical disk  
A method for recording data on an optical disk, capable of detecting an abnormal state which may occur in the middle of data recording, preventing the abnormal state from damaging the optical disk,...
6208599 Optical disk apparatus  
An optical disk apparatus which has first and second light-emitting elements for emitting laser beams, and records data on a recording medium with laser beams from the first and second...
6137756 Information recording using technique for detecting erroneous recording  
Provided are a method and apparatus for detecting an occurrence of erroneous recording in recording information to be recorded into a DVD-R. The information consists of a plurality of ECC blocks...
6115350 Optical disk having write power adjustment portion  
An optical disk apparatus adapted to a mark edge recording method having a structure such that a data pattern experimentally recorded on an optical disk with one write power is reproduced plural...
6049515 Optical disk device and replacement processing method  
In this invention, in an optical disk on which data is to be recorded in units of one ECC block constructed by 16 sectors, dummy data is recorded at the manufacturing time or at the initial time...
5982718 Verifying data by controlling the gain of an amplifying means according to a window width comparator  
In a disc drive device upon recording, the writing of data is executed and thereafter the reading of data is executed to verify, i.e., make a check as to whether the written data can be properly...
5966358 Signal recording apparatus and signal recording method  
A signal recording apparatus and a signal recording method for recording moving pictures, such as, a movie, without certifying an optical disc recording medium are provided. A recording section 10...
5963522 Optical disk device and method for detecting and replacing a defective sector within a block containing recording data and error correction data on an optical disk  
An apparatus and method for detecting and replacing a defective sector on an optical disk. Recording data and error correction data are recorded on an optical disk at a manufacturing time or an...
5936924 Information recording and reproduction device  
An information recording and reproduction device records, erases or reproduces information by projecting a laser beam to a recording medium that has a first group of information tracks and a second...
5909418 Optical information recording device and method for detecting and verifying recorded information  
A laser light beam generated from a light source is divided by a diffraction grating into a plurality of light beams, i.e., a single main beam to be used for recording information and plural...
5862104 Recording a complete broadcast program by selecting from a displayed program text  
The invention provides recording system in which sub information added to transmitted main information is detected, in which the sub information is compared with pre-stored information in a memory,...
5856964 Multihead optical disc drives with direct reading after writing operation  
Apparatus for optically writing information on or reading information from a disc having tracks includes a carriage moveable in a radial direction relative to the disc tracks and at least first and...
5793713 Magneto-optical recording device and method for judging the recorded signals by detecting magnetization states  
A magneto-optical disc recording apparatus is constituted by a pre-output detection circuit, a post-output detecting circuit, a pre-output pulsing circuit, a post-output pulsing circuit, a logical...
5784348 Phase detected direct read during write  
An optical recording system for recording data on an optical medium comprising: an optical source capable of providing at least one write pulse incident upon the optical medium; a direct read...
5687150 Apparatus for and method of recording information, and apparatus for recording and reproducing information  
A recording apparatus records information, which is continuously inputted from the external, onto a record medium. The recording apparatus is provided with: a compressing device for compressing the...
5684765 Optical recording method and control  
A control and method of overwrite optical recording with a first recording data transmission speed. In accordance with the method data which has been written, is verified for errors. When the...
5675568 Laser power control in an optical recording system to compensate for variations in mark length resulting from a wobbled groove  
An apparatus and method for controlling laser power in an optical recording system in the presence of mark length variations produced by a groove wobble when an incident recording beam is...
5666335 Apparatus and method for correcting for defective sectors in a recording medium  
Apparatus is provided that reads and writes data from and to an optical disk. The optical disk has a read-only memory area and writable memory area each including a plurality of sectors for storing...
5646924 Recording and simultaneous verifying method of phase-changing type of information recording medium  
An intensity of light reflected on a phase-changing type of information recording medium is changed since unrecorded and recorded portions of the recording medium have different phase states so...
5629921 Level detector for detecting a voltage level of a signal  
A level detector for detecting a voltage level of a signal, is disclosed. The level detector includes a signal comparator having a first input for receiving the signal; a first switch responsive to...
5623470 Reallocation of defective recording areas on CD-R or CD-E media  
Methods for recording information onto CD-Recordable and CD-Erasable optical disks are provided. In a first embodiment, after a session or packet of data is recorded, it is verified to detect...
Matches 1 - 50 out of 110 1 2 3 >