Matches 1 - 44 out of 44


Match Document Document Title
8031571 Signal drive apparatus and optical pickup apparatus using the same  
A signal drive apparatus includes a first buffer circuit where a signal converted into an electric signal from a first light signal is amplified; a second buffer circuit where a signal converted...
8023381 Information reproducing apparatus and method, and computer program  
An information reproducing apparatus (1) is provided with: an offset adding device (19-1, 19-2) for adding a first offset value (OFS) which can be set to be variable, to a read signal (RRF) read...
7965595 Secure digital recording  
A controller for secure digital recording apparatus and apparatus adapted for secure digital recording. The controller including a receiver for receiving at least one input signal from at least one...
7961575 Automatic DTS CD Versus CD-DA detection within a file system-based device  
A method of detection is described to be used in file system-based player devices to determine the type of compact disk that has been inserted into a player. The method automatically distinguishes...
7839748 Information reproducing apparatus and method  
There is provided an optical information recording/reproducing apparatus capable of obtaining a high super-resolution effect using an optical information recording medium in which a...
7701810 Reproduction apparatus, reproduction method and reproduction program  
A reproduction apparatus includes a storage part which stores a plurality of items of contents data; reproduction means for reproducing contents in any one of reproduction modes including a normal...
7649822 Recording and reproducing apparatus and recording method  
A recording/reproducing apparatus is provided which can write continuously a file of large-capacity at high-speed. A record area of HDD is provided with a disk cache area for temporarily storing...
7599263 Reproducing apparatus, reproducing method, and reproducing program  
A reproducing apparatus includes a storage unit having a plurality of content data stored therein, a reproducing unit reading out the content data stored in the storage unit and reproducing the...
7577066 Method and apparatus for providing high speed recording on an optical medium  
A system and method for controlling the position of an optical head of a disc during high speed recording. In one embodiment of the method, an optical disc has a plurality of tracks. The method...
7492678 Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion  
An apparatus which stabilizes an operation of a disc driver in a mode conversion setting section includes a pickup which reads information from a disc that is inserted into the disc driver, a...
7426161 Optical recording method and apparatus with different recording rates  
An optical recording method and apparatus with different recording rates are provided for effectively increasing the average recording rate. The optical recording method includes the steps of:...
7327843 Data reproducing device, hard disk, and data storing disk  
A hard disk A has is constructed to include: a disk 10 in which copy protection information is written in advance in a surface shape such as slits or corrugations in a pre-recording region 13 over...
7230900 Optical disk apparatus and computer readable recording medium storing program  
An optical disk apparatus for forming an image on an optical disk according to dot data which defines density of dots of the image, the optical disk apparatus includes: a framing unit which makes a...
7215614 Control method of recording speed in optical disc drives  
The present invention discloses a control method of recording speed in an optical disc drive. Firstly it is determined whether the recording speed is higher than a data transfer rate from the host...
7209424 Controller device with switchable characteristic  
A controller (30) is capable of operating in two possible operative modes, each mode having a corresponding characteristic (11; 12). Said characteristics have an overlap in a range of error signal...
7184376 Reproducing apparatus  
A reproducing apparatus for detecting a reproduction stop date when reproduction of image data is stopped in the past, and for determining a reproduction start position in the image data on a basis...
6973016 Information recording/reproduction method and apparatus incorporating temperature based recording/reproduction conditions  
An information recording medium includes a data area for recording data; and a drive information area for recording at least one piece of drive information. The data area is divided into a...
6885626 Information recording/reproducing apparatus  
An information recording/reproducing apparatus which allows freer utilization of data compressed under different data compression schemes. When data recorded on a magneto-optical disc of an MD...
6859425 Wobble signal detection circuit and optical disk device  
An wobble signal detection circuit that is provided on an optical disk device and can detect a wobble signal having high accuracy and stability at least when recording information on an optical...
6819642 Data recording device, data reproducing device, and optical disc  
In a CIRC encoder for carrying out error correction coding processing with a CIRC, a first interleaver and a second interleaver are provided which have different delay parameters, and these...
6760292 Disc recorder for recording coded data to be reproduced in real time and method of doing the same  
A disc recorder is provided with: a reproduction peak rate detector for detecting a peak rate; a data recording start position detector for detecting a data recording start position; a data...
6735156 Recording method for rewritable optical disk  
When an error has occurred during the recording of an optical disk, the track recording system is changed from a variable-length packet write system to a fixed-length packet write system employing...
6636467 Method and apparatus for accurately calibrating the timing of a write onto storage media  
The write-timing calibration involves (1) writing a calibration data sequence referenced to a physical timing clock (such as a wobble clock on a DVD disk), (2) measuring the timing offset or phase...
6614736 Optical disc drive, and recording/reproducing method  
To enable a plurality of types of optical discs different in recording density from each other and quickly getting “ready” for writing and/or reading data to and/or from each of such optical dis...
6587416 Disk recording apparatus for controlling interruption of data and securing interleave length of first and last blocks of data after start and release of recording interruption  
When data recording on a disk is interrupted due to the termination of data reception and recording is then resumed with reception of new data, specific data generated by a data generator (23) is...
6535468 OPTICAL RECORDING MEDIUM HAVING AN AREA FOR RECORDING A PLURALITY OF RECORDING/REPRODUCTION CONDITIONS TO BE USED IN RECORDING/REPRODUCTION APPARATUSES AND RECORDING/REPRODUCTION METHOD AND APPARATUS THEREFOR  
A rewriteable type optical recording medium for recording information has an information recording area for recording information and a recording/reproduction condition recording area for recording...
6469964 Optical recording medium and recording/reproduction method and apparatus therefor  
A rewriteable type optical recording medium for recording information has an information recording area for recording information and a recording/reproduction condition recording area for recording...
6292451 Optical disc and optical disc driving device  
An optical disk having a plurality of substantially concentric tracks, each of which includes a plurality of segments each comprising a servo area ARs provided with servo pits for giving servo...
6205104 Recording/reproducing apparatus for compressed data  
A high speed dubbing is to be realized with two recording and/or reproducing units for compressed data. To this end, a magneto-optical disc 32 is read by an optical head 33 and compressed data...
6081492 Disc player reproduction circuit with reproduction speed dependent VFO  
A disc reproduction device, in which at the time of normal reproduction, a rotational speed of a spindle is detected based on a reproduction signal from the disc by a rotational speed counting...
5872754 Data reproduction apparatus  
A data reproduction apparatus assuring compatibility of optical disks capable of reproducing both pit-position recorded data and edge-position recorded data in optical disks by digital operation by...
5537636 File management system for a partially rewritable storage medium where file management information is created in a rewritable zone based on medium management information in a read only zone  
A file management system for a partially rewritable single storage medium increases a Rewritable Zone and an unrewritable Read Only Zone, where a desired number of files and pieces of medium...
5459704 Optical reader for record carriers with different information densities  
An optical reader for record carriers of a two types adapted for scanning with radiation beams. The information structures of the respective types are arranged in tracks. The structure of the...
5418762 Optical disk recording device having a pre-recording mode  
A disc recording apparatus in which input digital signal are compressed and temporarily stored in a memory at a first speed and wherein, in response to a user supplied record signal, the compressed...
5337197 Method and system for maintaining directory consistency in magneto-optic media  
The invention provides a system and method for making a data update, such as a directory update, to a magneto-optic disk which includes: copying designated directory sectors from the disk to a...
5233593 Method of high speed searching for a desired tape portion in a digital audio tape recorder  
There is disclosed a circuit for inhibiting overwriting used in a WORM (Write Once Read Many) type optical disk driver. The circuit analyzes the signal read from the disk just before the write data...
5222058 Data recording apparatus capable of recording with predetermined data arrangement  
A data recording apparatus is directed to a modulating/recording system for modulating data divided into a plurality of blocks and recording the modulated data on a recording medium. A byte sync...
5177719 Data track accessing apparatus  
A data-track accessing apparatus effectively eliminates external disturbance components from a track-deviation signal and correctly locates an objective track at an extremely fast speed. The...
5151893 Optical data recording and reproducing apparatus  
In an optical data recording and reproducing apparatus comprising an information signal generator, a sample/hold switching signal generator, a write/read switching signal generator, a laser beam...
5001698 Read-out information signal processing circuit in an optical recording and reproducing system  
A read-out information signal processing circuit having a switching device for relaying the read-out information signal read-out from a recording medium in an optical recording and reproducing...
4800550 Multi-format optical disk recording/reproducing system  
A multi-format optical disk recording/reproducing system in which data can be recorded in either of two formats having different data capacity. Both error correction and detection codes and...
4780866 Method and apparatus combining an information-bearing disk and a disk drive mechanism  
An information-bearing disk (magnetic-rigid or floppy, magneto-optical-Kerr or Faraday, optical or an equivalent thereof) includes equally spaced data-storing tracks grouped in a plurality of...
4688205 Data demodulation apparatus  
A data demodulation apparatus comprises an optical head for reading out code data from a recording medium, the code data having been modulated according to the timing of a clock pulse of a...
4613965 Digital audio disc system  
A digital audio disc system having a main channel in which main data consisting of audio PCM signals and codes for error correction are recorded and a subchannel in which information digital...
Matches 1 - 44 out of 44