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Document Title |
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7382708 |
Data recording/reproducing device
A data recording device comprises a block division unit dividing a sequence of user data blocks into first blocks and second blocks, a plurality of multi-level data generating units generating...
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7379502 |
Method of converting digital data
Disclosed is a method of digital data conversion. The method includes binding input digital data into unit blocks constituted by a plurality of bytes, modulation-coding each byte of the input data...
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7376066 |
Information recording method and an information recording apparatus
An information recording method and an information recording apparatus are disclosed, wherein x-bit long binary data are converted into m multi-level data of n levels (x is an integer equal to or...
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RE40312 |
Digital data transmitting method
A transmitting method of digital data whereby information data can be reproduced at a high precision. In order to retain digital data in sectors comprising a plurality of sync frames and...
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7355950 |
Recording and/or reproducing apparatus, disk manufacturing apparatus, recording and/or reproducing method, disk manufacturing method, and information recording medium using recording and/or reproducing unit blocks having different sizes in different areas
A recording and/or reproducing apparatus including a signal processing unit that performs signal processing of a first and a second address to distinguish a first area disposed in a data recordable...
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7355935 |
Method of recording physical address information on optical disc and optical disc having the same
An optical disc and method of recording physical address information on the optical disc, the optical disc including a first recording area ranging from an innermost circumference to a...
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7342864 |
Optical disk reproduction apparatus and optical disk reproduction method
There are provided a wobble signal reading unit configured to read a signal corresponding to a wobble formed at a predetermined track from an optical disk on which address information is recorded...
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7327660 |
Optical disc and physical address format
An optical disc medium comprises a track groove, along which main information is recorded. The track groove is divided into a plurality of blocks. The plurality of blocks each include a plurality...
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7298963 |
Time code generator and time code generating method, time code reader and time code reading method, and video recording and reproducing apparatus
The present invention provides an apparatus for generating a time code compatible with 50P, 60P or 59.94P and having interchangeability with existing time codes. The apparatus includes: a...
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7298684 |
Disk-like recording medium, disk recording apparatus and disk recording method, and disk playback apparatus and disk playback method
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...
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7272097 |
Method of detecting data structure of non-return-to-zero data in an optical storage device
A method of detecting a data structure of fourteen-bit data in an optical storage device includes connecting a first 8-bit register between an eight-to-fourteen modulator and a leading zero...
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7196984 |
Optical disk medium and optical disk recording and reproducing apparatus
A recording data string is composed of a plurality of synchronous frames each of which has synchronous data and coding data. Data items in the coding data contributed to creation of the same column...
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7190653 |
Data recording/reproducing device
A data recording device comprises a block division unit dividing a sequence of user data blocks into first blocks and second blocks, a plurality of multi-level data generating units generating...
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7149171 |
Apparatus for writing data and method for generating DVD format data
An apparatus for writing block data, which includes a plurality of sectors, to a recording medium. The apparatus includes a controller for generating the block data and writing the block data to...
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7123558 |
Method of seamless ZCLV/PCAV recording for packet writing
When recording to an optical disk under zoned constant linear velocity (ZCLV) or partial constant angular velocity (PCAV) control, a plurality of super link points are dynamically set in the packet...
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7116624 |
Optical disc and physical address format
An optical disc medium compares a track groove, along which main information is recorded. The track groove is divided into a plurality of blocks. The plurality of blocks each include a plurality of...
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7102973 |
Media authentication using altered sector sizes
Method and apparatus for authenticating a data storage medium (such as an optical disc including a compact disc, CD or a digital versatile disc, DVD) in which data are nominally stored in a...
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7038991 |
Method and device for recording information in units
A method and device for recording information in units on a partly recorded writable record carrier, e.g. an optical disc. The information is recorded in a track represented by series of marks of...
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7016286 |
Digital signal modulation method, digital signal modulation apparatus, encoding method, encoding apparatus, storage medium, transmission apparatus and program
First and second synchronous words having respective numbers of times of inversion different from each other in NRZI conversion are generated in a synchronous word generation portion, and first and...
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6996048 |
Concentrically recording auxiliary information on non-data area of a disk-like recording medium
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...
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6917574 |
Data recording and reproducing apparatus and method for linking data using a decreased number of data linking blocks
User data is recorded in a recording medium while being linked in units of a fixed length packet, and information indicative of this fact is written to the recording medium. At the time of reading...
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6842522 |
Secure digital video disk and player
A method for recoding data on an optical medium such as DVD. The method includes receiving main data from a data source, determining a plurality of data frame values in response to the main data,...
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6836458 |
Recording apparatus for optical recording media
A recording apparatus includes a gate signal generator for generating a gate signal in accordance with the data signal; a pre-pit signal generator for generating a pre-pit signal from a signal read...
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6754149 |
Signal processing apparatus and signal processing method
An encoder & decoder unit for encoding data to be recorded has a data-supply-start-signal-generating circuit for generating an ATTX signal requesting that an operation to supply the data to be...
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6747935 |
Optical information recording and reproducing device
There are times when an abnormal light emission occurs and damage the medium when updating the setting register of the pulse width or the laser driving current during recording operation in an...
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6697314 |
Information reproducing apparatus for reproducing information from an information storage medium in which a storage area is divided into physical sectors
There is disclosed an information reproducing apparatus and an information recording apparatus in which information transfer is possible by an information amount unit different from a sector unit,...
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6661762 |
Method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks, and a unitary medium so produced by a write-interfacing
For mapping sampled digital audio information onto a linear physical mapping space that is partitioned in a string of uniform-sized blocks, in particular for variable-rate coded audio information...
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6608807 |
Generating a multilevel calibration sequence for precompensation
A system and method are disclosed for generating a calibration sequence of multilevel symbols includes generating subsequences of digital values selected from a range of digital values using a...
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6510113 |
Recording apparatus, recording method, and recording medium carrying computer program for recording a signal
A recording apparatus, a recording method, and a recording medium, which allows a search operation based on a second segment information signal representing finely divided segments of a recording...
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6490236 |
Method and apparatus for optical disk device
In playing back data in an optical disk device, to perform high-speed data playback with a low number of playback retries even if an error occur when data is being read. In reading data composed of...
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6477127 |
Recording/playback apparatus capable of carrying out linking on optical disk, and optical disk recorded with linked data
A video disk recorder has a function for carrying out a linking on an optical disk and contains a predetermined data building-in circuit for supplying a predetermined fixed data as a playback data....
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6392974 |
Playback method and apparatus for reading audio programs recorded on a record carrier
A playback apparatus for reading a record carrier includes a drive unit for sending out audio sectors that were recorded on the record carrier, an ID extractor for extracting the ID codes of the...
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6373798 |
Recording device which can continuously record information data onto plurality of information media
A recording device that can continuously record information data onto a plurality of information media without recording any particular information pertaining to continuous recording and without...
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6373794 |
Methods and apparatus for delayed block release in compact disc systems
Disclosed is a disc drive system that includes a digital signal processor for processing information sectors read from a CD media. The digital signal processor is configured to parse the...
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6345028 |
Method for direct recording and playback of multiple data tracks and signals
A process for recording and playing audio, video and/or data signals simultaneously from a recording medium includes the steps of initially acquiring a plurality of audio, video and/or data...
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6259660 |
Optical disk apparatus having error correction circuit
A frame number correction signal generating circuit generates a control signal for correcting a frame number counter in the unit of two frames based on an out-of-sync. signal output from an...
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6195325 |
Data recording apparatus and method
For recording data into a disc-like recording medium without any lower linear density in data tracks in the lead out zone even in the CAV mode, a radial position on the recording medium of an n-th...
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6191903 |
Recording medium, data transmission apparatus, data receiver, and optical disk unit
This invention relates to a recording medium, data transmission apparatus, data receiver, and optical disk unit, and particularly applies to a system which transmits video data and other data or...
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6181655 |
Optical disc drive, timing signal generator, and information recording and reproduction method
An optical disc drive produces read gate signals for controlling the address and data read timing, and write gate signals for controlling the timing of data writing. During the disc speed is...
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6172947 |
Method and apparatus for time shifted signal recording and reproduction
An apparatus for recording and reproducing a data signal on and from a rewritable recording medium structured to have sectors and a method for recording the data signal on the recording medium are...
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6163515 |
Optical disk writing control device
An optical disk writing control device for writing subcode Q data for each block on an optical disk, includes a subcode Q data register which stores subcode Q data set by a CPU, and a control unit...
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6160779 |
Information recording and reproducing device and method
A recording and reproducing device including a Viterbi decoder which improves address reading rate but has some amount of delay in decoding process, starts ALPC (Automatic Laser Power Control)...
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6160777 |
Apparatus and method for generating block synchronous signal for digital versatile disc
An apparatus and a method for generating a block synchronous signal for a digital versatile disc. The block synchronous signal generation apparatus comprises an identifier error correction code...
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6157608 |
Optical disc, optical disc device, and method for recording an optical disc
In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard...
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6134200 |
Method and apparatus for recording a main data file and a control file on a record carrier, and apparatus for reading the record carrier
Record carrier on which a main data file and a control file have been recorded, method of and device for recording the main data file and the control file, and device for reading the record...
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6118741 |
Method and device for recording information on a carrier
A method of digitally recording information on a suitable medium, particularly a CD is described, in which method a recording is made during a recording session. The recording includes a program...
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6118393 |
EFM signal frame period detecting circuit, and system for controlling the frequency of the bit synchronizing clock signal used for reproducing the EFM signal
A system for controlling the frequency of a bit synchronizing clock signal used for reproducing an EFM signal, comprises an EFM signal frame period detecting circuit for frequency-dividing an EFM...
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6115342 |
Optical disk recording device and optical disk drive
An optical disk writing device includes an optical disk drive recording data into an optical disk and having no harddisk as a data buffer, and a host; computer controlling the optical disk drive...
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6111845 |
Record carrier, and recording method and apparatus for recording audio programs on a track of a record carrier
A record carrier includes at least one track having at least one block. The block includes a plurality of interleaved compressed audio programs, and is grouped into a number of consecutive...
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6108289 |
Optical disc recording apparatus for overwriting information on a previously recorded packet of an optical disc
An optical disc recording apparatus which can record information, which is provided in a packet having a fixed length, on an optical disc on an individual user data block by using the fixed packet...
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