| Entries |
| Document | Title | Date |
|---|
| 20090097371 | OPTICAL DISK DEVICE AND METHOD FOR DETECTING DEFECTS OF OPTICAL DISK MEDIUM - An optical disc device includes an optical head section and a regularity monitoring circuit. The optical head section generates a wobble signal indicating wobbling of a track formed on a recording surface of an optical disc medium based on a reflected light reflected by the optical disc medium. The regularity monitoring circuit judges an existence or absence of a defect on the optical disc medium based on a difference between the wobble signal and a signal indicating the wobble under a normal condition. | 04-16-2009 |
| 20090122676 | EVALUATION APPARATUS, EVALUATION METHOD, AND PROGRAM - An evaluation apparatus for obtaining an evaluation value of a signal read from an optical recording medium includes a reading device reading a signal recorded on the optical recording medium, an edge position detection device detecting edge positions of the read signal acquired by the reading device, a frequency distribution table generation device generating a frequency distribution table of the edge positions on the basis of accumulation result of information of the edge positions detected by the edge position detection device, and a first calculation device calculating a T degree value represented as | 05-14-2009 |
| 20090257332 | OPTICAL DISC READING APPARATUS AND METHOD THEREFORE - An optical disc reading apparatus, such as a Near Filed optical disc reading apparatus, comprises a disc reader ( | 10-15-2009 |
| 20100284257 | ADJUSTING METHOD FOR RECORDING CONDITION AND OPTICAL DISC DEVICE - In a optical disc system with constraint length equal to or greater than 5, under assumption that continuous 2T count included in a predetermined evaluation bit array is denoted by i and that length of evaluation bit array of interest is given by (5+2 | 11-11-2010 |
