Matches 1 - 27 out of 27


Match Document Document Title
US20070081438 DVD-R/RW and DVD+R/RW Recorders  
A method and apparatus for recording data at specific locations on a DVD includes selectively detecting the occurrence of wobble sync during a window computed from previous occurrences of wobble...
US20090279405 OPTICAL DISC DRIVE, OPTICAL STORAGE MEDIUM, OPTICAL STORAGE MEDIUM INSPECTION APPARATUS, AND OPTICAL STORAGE MEDIUM INSPECTION METHOD  
An optical disc drive having an optical pickup head emitting a light beam to an optical storage medium, detecting the light beam reflected from the optical storage medium, and outputting a signal...
US20070121458 SYNCHRONICITY DETERMINING DEVICE, AND PHYSICAL ADDRESS DETECTING DEVICE AND METHOD  
According to one embodiment, a synchronicity detecting circuit to which a wobble signal reproduced from a recording track is input and which detects a synchronizing signal in the wobble signal, a...
US20070047412 JITTER MEASURING METHOD AND DEVICE THEREOF  
The present invention provides a jitter measuring device. The device includes an edge position measuring unit and a jitter calculation unit. The edge position measuring unit receives a serial...
US20070086286 WOBBLE SIGNAL SYNTHESIZER AND METHOD FOR GENERATING SYNTHESIZED WOBBLE SIGNAL SYNCHRONIZED WITH PHYSICAL WOBBLE SIGNAL THROUGH COMPARING PHASES OF BOTH LAND PRE-PIT SIGNAL AND SYNTHESIZED WOBBLE SIGNAL WITH A REFERENCE CLOCK  
A wobble signal synthesizer for generating a synthesized wobble signal synchronized with physical wobble signal is disclosed. The wobble signal synthesizer includes a variable-period signal...
US20060245323 Protective system and method for data write of an optical drive  
A protective system and method for data write of an optical disk drive, which produces a pseudo synchronization signal for the optical disk drive to perform a write operation on an optical disk....
US20090097373 Jitter Counter And Optical Disc Apparatus Using Same  
A jitter counter according to the present invention is connected to a PLL circuit for generating a clock signal, which is necessary for signal processing, from a binary signal, and counts jitters...
US20070064566 Signal process device and method for obtaining wobble signal  
A signal process device and method is provided to obtain a wobble signal from a set of retrieved signals. The signal process device comprises: an RF amplifier, band-pass filter, and a feedback...
US20100067341 Address detection circuit and address detection method  
An address detection circuit includes a correction signal generator that generates a plurality of timing correction signals based on an ADIP (Address In Pre-groove) signal that is read out from a...
US20070097825 Waveform reconstructor for optical disk read channel  
A waveform reconstructor is utilized in the read channel of an optical storage system in order to produce a high speed and reliable data output. Generally speaking, the waveform reconstructor...
US20070097827 Method and apparatus for detecting saw-tooth wobble signal to reproduce information recorded on an optical disk  
An apparatus and method for detecting a STW signal to reproduce information recorded on an optical disk is provided. According to the method, a sine component is extracted from an input wobble...
US20110085430 OPTICAL DISC DRIVE, OPTICAL STORAGE MEDIUM, OPTICAL STORAGE MEDIUM INSPECTION APPARATUS, AND OPTICAL STORAGE MEDIUM INSPECTION METHOD  
An optical disc drive having an optical pickup head emitting a light beam to an optical storage medium, detecting the light beam reflected from the optical storage medium, and outputting a signal...
US20100226230 RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM, AND RECORDING MEDIUM  
A recording apparatus includes: a first strategy calculating device (SCD) for calculating a first optimum strategy allowing jitter recorded at a first speed to satisfy a desired condition by...
US20080062840 METHOD AND APPARATUS FOR DETECTING OPTICAL DISK TYPE  
A method to determine the diameter and shape of the loaded optical disk without any additional sensor. By accelerating a disk for a certain period of time and then monitoring the rotational speed...
US20070025217 Method and apparatus for detecting phase error information in multilevel recording/reproduction system  
An optical information reproduction method includes the steps of detecting, in at least two adjacent virtual cells provided in a recording/reproduction area of an optical information medium, at...
US20070091756 METHOD AND APPARATUS OF CALIBRATING PARAMETERS UTILIZED FOR DETERMINING SERVO SIGNALS  
A method and related apparatus for calibrating at least a parameter utilized for determining a servo signal of an optical disc drive. The method includes: (a) adjusting the parameter; (b)...
US20080080333 OPTICAL DISK APPARATUS  
An optical disk apparatus includes a signal detection unit which detects a signal corresponding to a wobbling guide groove formed on an optical disk, a timing signal generating unit which...
US20070177475 Method and apparatus to reproduce data with an improved data error correction capability  
A method and apparatus to reproduce and/or record data from and/or to an optical recording medium. The method includes detecting a wobble signal from the optical recording medium, predicting a...
US20100027398 OPTICAL DISC DEVICE AND RECORDING DEVIATION AMOUNT TRANSFER METHOD  
There is provided an optical disc device which can evaluate in a short time as to whether an optical disc is recorded with satisfying the standard or not. An optical disc device for measuring a...
US20070076548 Information recording medium, recoding layer discriminating method ,recording layer discriminating apparatus, optical disk apparatus, information, etc.  
An information recording medium is provided with a plurality of information recordable recording layers, and a spiral or concentric tracks are formed on each of the plurality of recording layers....
US20080298194 Optical disc apparatus and data recording method thereof  
In order to ensure recording quality while suppressing the adverse effects due to performance variations among apparatuses and disc radial positions on an optical disc, an optical disc apparatus...
US20060250915 Apparatus and method for decoding data encoded in wobbeed pattern of a recording medium  
The present invention relates to apparatus and method for decoding data encoded in wobbled pattern of a recording medium, especially, a recordable optical disk. In the present invention, a...
US20120236699 OPTICAL DISC RECORDING AND REPRODUCING SEMICONDUCTOR INTEGRATED CIRCUIT AND OPERATING METHOD THEREOF  
A semiconductor integrated circuit is equipped with a reproduction ECC circuit, a recording ECC circuit, a host interface circuit, and a memory control circuit. The memory control circuit includes...
US20060198268 Discrimination method of optical storage medium  
A discrimination method of an optical storage medium is provided. The method scans a plurality of data recording points, and obtains a channel bit rage according to the scanned data recording...
US20100182886 OPTICAL DISC DEVICE AND RECORDING CONDITION SETTING METHOD  
The present invention is aimed at providing an optical disc device and a recording condition setting method which can automatically determine an optical recording condition to an optical disc, and...
US20100149940 CLOCK SIGNAL GENERATION DEVICE  
A clock signal generator according to the present invention includes: a wobble phase error detecting section for detecting a wobble phase error that is a difference in phase between a wobble...
US20140043950 SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND OPTICAL DISC APPARATUS  
Provided is a signal processing device including: an adaptive filter; a PRML circuit for sequentially generating binarized data from a filtered reproduced waveform by sampling at sampling points...

Matches 1 - 27 out of 27