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| Application No. | Application Title | Issue Date |
| 20100135147 | HIGH POWER OPTICAL DISC DRIVES High power optical disc drives are disclosed. The drives are configured to deliver laser energy having a power of at least about 25 mW as measured at DVD 1X write speed upon first contact with the surface of an optical disc.... | 06/03/2010 |
| 20100135138 | OPTICAL DISK DRIVE AND METHOD OF DETERMINING WRITE STRATEGY THEREOF An optical disk drive, and a method of determining a write strategy thereof. In the method of determining a write strategy of an optical disk drive where a mark and a space are formed on an optical disk by a laser beam to display write information and information is wri... | 06/03/2010 |
| 20100091638 | Optical information recording medium reproducing apparatus, method for reproducing optical information recording medium, program for reproducing optical information recording medium, and computer readable recording medium An optical information recording medium reproducing apparatus 1 includes: a signal detecting/extracting section 15 extracting, from reproduction signal data, extracted reproduction signal data corresponding to a predetermined data pattern; a calculating ci... | 04/15/2010 |
| 20100091637 | METHOD AND APPARATUS FOR PERFORMING A WRITING POWER CALIBRATION The present invention relates to a method of performing a writing power calibration for optical recording on an optical storage medium having a spiral track structure, comprising the steps of: selecting a first partition (10) on the track structure having a first... | 04/15/2010 |
| 20100061213 | OPTICAL HOLOGRAPHIC DEVICE AND METHOD WITH GAIN COMPENSATION The present invention relates to an optical holographic device and a corresponding method for reading out a data page recorded in a holographic recording medium (106). In order to improve the bit error rate a reconstruction means (115) provided for reconst... | 03/11/2010 |
| 20100061218 | Optical Recording Medium and Recording and Reproducing Method Using the Same It is an object of the present invention to provide an optical recording medium containing a laminated structure of a first deformable material layer containing a phase-change material that absorbs light at a recording wavelength to generate heat and is subject to exoth... | 03/11/2010 |
| 20080175132 | GAIN CONTROL SYSTEM AND CALIBRATION METHOD THEREOF A gain control system for compact disc laser reader is provided, comprising two AGCs, comparator and a calibration unit. The first AGC receives a calibration signal to generate a first output signal with a first gain. The second AGC receives the calibration signal to ge... | 07/24/2008 |
| 20070280069 | METHOD OF GAIN CONTROL AND CONTROLLER THEREOF The invention provides an automatic gain controller processing an input signal for wobble detection circuit. An exemplary embodiment of the automatic gain controller comprises an envelope detection module, an analog to digital converter, a digital control module, a digi... | 12/06/2007 |
| 20070280088 | METHOD AND APPARATUS FOR BLANK DETECTION OF AN OPTICAL DISC An optical storage device and a blank detection method thereof are disclosed. An RF signal is obtained from an optical disc. A various gain amplifier amplifies the RF signal based on a control signal. An analog to digital converter samples the amplified RF signal to obt... | 12/06/2007 |
| 20070280087 | Writing method and optical disk device An objective of the present invention is to enhance reliability of recorded data by preventing deterioration of OPC (Optimum Power Calibration) accuracy due to an influence of inter-layer interference in an optical disk device capable of writing in a multilayer optical ... | 12/06/2007 |
| 20070280079 | ASYMMETRY MEASUREMENT APPARATUS An asymmetry measurement apparatus is disclosed. The asymmetry measurement apparatus is designed for detecting the recorded data reproduction waveform of an optical storage device in digital domain. The asymmetry measurement apparatus includes an Analog to Digital Conve... | 12/06/2007 |
| 20070280072 | APPARATUS FOR DEMODULATING ADDRESS IN PRE-GROOVE SYMBOLS AND APPARATUS FOR DECODING PRE-PIT SYMBOLS The invention provides an apparatus for demodulating an Address In Pre-groove (ADIP) symbol. The ADIP symbol is carried by a wobble signal of an optical disk and comprises a series of ADIP bits permuted according to one of a plurality of permutation patterns to make up ... | 12/06/2007 |
| 20070280071 | APPARATUS FOR DETECTING THE WOBBLE CARRIER FREQUENCY OF AN OPTICAL DISK AND METHOD FOR SAME An apparatus for detecting the wobble carrier frequency of an optical disk is disclosed. The apparatus comprises an offset canceller, a binary conversion module, an adjustable band pass filter, and a frequency detection module. The offset canceller cancels the direct cu... | 12/06/2007 |
| 20070280070 | WOBBLE DETECTION CIRCUIT AND METHOD FOR PROCESSING WOBBLE SIGNALS The invention provides a wobble detection circuit. An exemplary embodiment of the wobble detection circuit comprises an automatic gain control module, an analog to digital converter, a digital band pass filter, and a digital band pass filter. The automatic gain control ... | 12/06/2007 |
