Maarten Kuijper
Maarten Kuijper, Kuijper NL
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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 ( | 04-15-2010 |
Maarten Kuijper, Taipei City TW
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20100067334 | Record Carrier as well as an Apparatus and Method for Applying Image Data as a Visually Detectable Pattern at an Optical Record Carrer - A record carrier is described comprising a zone with a visually detectable pattern composed of pattern elements arranged along at least one track. The pattern elements comprise a marked zone having an optical property deviating from a background, the marked zones having a width Wm transverse to the track direction and a length Lm along the track direction, wherein at least two or more pattern elements have a marked zone with a mutually different width Wm. | 03-18-2010 |
20100067348 | Record Carrier as well as an Apparatus and Method for Applying Image Data as a Visually Detectable Pattern at an Optical Record Carrer - A method of applying image data as a visually detectable pattern with at least one embedded data element at an optical record carrier is disclosed, comprising the step of physically mapping at least one channel symbol onto the record carrier, the channel symbol being selected from a set of mutually different channel symbols, the channel symbols each comprising an area of size s | 03-18-2010 |
20100067349 | Optical Record Carrier as well as an Apparatus and Method for Reading/Writing Image Data from/at a Visually Detectable Pattern at an Optical Record Carrier - A method is disclosed of reading an image data from an optical record carrier with a visually detectable pattern comprising a visually detectable pattern of pixels comprising at least one pattern element comprising an area of size s | 03-18-2010 |
Maarten Kuijper, Helmond NL
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20090059742 | OPTICAL DISK DRIVE WITH SPHERICAL ABERRATION MEASUREMENT AND METHOD OF MEASURING SPHERICAL ABERRATION IN AN OPTICAL DISK DRIVE - The invention relates to an optical disk drive. The optical disk drive has an objective lens to be driven by a focus actuator with a focus offset for focusing an incident beam onto an optical disk into a spot with a spherical aberration, and a processor to derive a first and a second characteristic from a sensor output signal and obtain a spherical aberration correction value (SA) from a pre-determined function, the pre-determined function defining a spherical aberration correction value in dependence on a focus offset difference value (ΔFO). The focus offset difference value (ΔFO) is determined from a difference between a second optimal focus offset at which the second characteristic is optimal and a first optimal focus offset at which the first characteristic is optimal. The spherical aberration correction value (SA) can be used to achieve a correction to the spherical aberration of the spot. | 03-05-2009 |
20090092010 | METHOD AND APPARATUS FOR DETERMINING WRITE STRATEGY PARAMETER VALUES FOR WRITING DATA ON AN OPTICAL DISK - The invention relates to a method for determining write strategy parameter values for writing data on an optical disk from a group of optical disks of different types using an optical disk drive, in particular to different types of BD disks. The method includes identifying the type of optical disk, the type of optical disk being associated with a standard write strategy with standard write strategy parameters; determining a cluster write strategy with cluster write strategy parameters, the number of cluster write strategy parameters being smaller than the number of standard write strategy parameters; initializing the cluster write strategy parameters with initial cluster write strategy parameter values; and optimizing cluster write strategy parameter values for at least a subset of the cluster write strategy parameters. The optimizing is preferably performed on optimization sets of cluster write strategy parameters in a pre-determined optimization order. | 04-09-2009 |
20090103424 | OPTICAL RECORD CARRIER, AS WELL AS A METHOD AND AN APPARATUS FOR RECORDING A DISC SHAPED OPTICAL RECORD CARRIER - An apparatus is described for recording an optical record carrier ( | 04-23-2009 |
20090116356 | METHOD FOR RECORDING A VISUALLY DETECTABLE PATTERN ON AN OPTICAL RECORD CARRIER, APPARATUS FOR RECORDING A VISUALLY DETECTABLE PATTERN ON A RECORD CARRIER AND INSTRUCTION TO BE EXECUTED BY THE APPARATUS - An apparatus is described for recording a visually detectable pattern on a record carrier ( | 05-07-2009 |
20090116362 | OPTICAL RECORD CARRIER WITH A VISUALLY DETECTABLE PATTERN AS WELL AS AN APPARATUS AND A METHOD FOR RECORDING A VISUALLY DETECTABLE PATTERN ON AN OPTICAL RECORD CARRIER. - A system is described comprising an optical record carrier and an apparatus for recording the optical record carrier. The apparatus comprises a facility ( | 05-07-2009 |
20090316549 | OPTICAL DISK DRIVE FOR SCANNING AN OPTICAL DISK WITH A SCANNING VELOCITY AND METHOD FOR SCANNING AN OPTICAL DISK WITH A SCANNING VELOCITY - An optical disk drive and a method for scanning an optical disk that includes a substantially circular track with a scanning velocity is provided. A servo control signal (SCS) is determined based on a servo error signal (SES). A first performance indicator (IND | 12-24-2009 |
Maarten Kuijper, Taipei TW
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20090122675 | Method for determining optimal operating parameters for reading or writing a storage medium - A method for determining optimal operating parameters for reading or writing a storage medium, with the consideration of failed experiment. In an embodiment of the invention, if one of a set of experiments, executed within pre-defined ranges with respect to two parameters, leads to an invalid characteristic measurement value, and the corresponding values of the two parameters occur substantially at ends of the respective ranges, at least one search operation is determined according to the failed experiment(s) and a new set of experiments is generated according to the previous set of experiments and the search operation to avoid the failed experiment(s). The new set of experiments can result in more reliable optimal operating parameters. | 05-14-2009 |
20090122680 | Method for determining a parameter space for finding optimal operating parameters for reading or writing a storage medium - A method for determining a parameter space for finding optimal operating parameters for reading or writing storage medium is provided. In an embodiment of the invention, the method includes: setting a first parameter range of a first operating parameter and a second parameter range of a second operating parameter; normalizing the first and the second parameter ranges respectively and forming an initial parameter space based on the normalized first and second parameter ranges; and rotating the initial parameter space by a rotation angle and forming an actual parameter space based on the rotated initial parameter space. The actual parameter space is expected to result in more reliable optimal operating parameters. | 05-14-2009 |