Patent application number | Description | Published |
20080205210 | Apparatus and Method For Determining Write Strategy Parameters For Recording Data on an Optical Record Carrier and For Determining Read Parameters For Reading Data From an Optical Record Carrier - The present invention relates to an apparatus and a corresponding method for determining write strategy parameters for recording data on an optical record carrier ( | 08-28-2008 |
20080212426 | Recording Apparatus Having a Media-and Temperature-Dependent Power Control Scheme - The present invention relates to a recording apparatus, a record carrier, and a method of controlling a radiation power used for recording data on a record carrier, wherein a write power control is performed on the basis of temperature and disc-dependent parameters to solve write performance problems, especially on dye media. To achieve this, a first control parameter indicating a variation of the radiation power due to a non-homogeneity of the record carrier is predicted as a function of a recording position, and a second control parameter indicating a temperature dependency of the radiation power is predicted based on a measured temperature. Thereby, accuracy of writing power control can be improved, especially in case of a jump between arbitrary recording positions. | 09-04-2008 |
20080225777 | Method and Device for Controlling Write Power in a Recordable Optical Storage System - The invention provides an optimum write power control technique for controlling the write power during write processes in recordable optical storage systems, especially in Rewritable optical systems. In an Optimum Power Calibration (OPC) procedure an optimum write power level is determined from the jitter values of recorded test marks. | 09-18-2008 |
20080239911 | Parameter Variation Before Closing Radial Control Loop - The invention relates to a method of optimizing an optical drive system | 10-02-2008 |
20090141600 | DATA ERROR MEASURE BASED RECORDING SPEED CONTROL - The present invention relates to determining a data writing speed for writing data on a medium ( | 06-04-2009 |
20090268572 | RECORDABLE OPTICAL STORAGE SYSTEMS - A last optimum parameter value control method is disclosed, with a laser parameter value being adjusted in a predetermined sequence at an ADIP/ATIP frame of an optical recording medium. Jitter is measured at each ADIP/ATIP frame in order to obtain an average jitter value for that particular frame, and hence parameter value. | 10-29-2009 |
20090290461 | OPTIMIZING CALIBRATION SYSTEM - An optical scanning device scans a medium via a beam of radiation. The device has a head for providing the beam, beam control means for controlling the beam to generate a scanning spot, a front-end unit for generating a scanning signal based on radiation reflected from the medium, and an adjustment unit for adjusting the beam control means in dependence on detected errors. A beam control parameter, e.g. focus offset, is adjusted by a compromise value based on at least a first calibration value ( | 11-26-2009 |
20100165805 | METHOD AND APPARATUS FOR DETERMINING AN OPTIMUM POWER LEVEL - A fast optimum power control method is disclosed, with a laser power level being adjusted in a predetermined sequence at an ADIP/ATIP frame of an optical recording medium. Jitter is measured at each ADIP/ATIP frame in order to obtain an average jitter value for that particular frame, and hence power level. | 07-01-2010 |