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Toshiba Samsung Storage Technology Corporation
| Toshiba Samsung Storage Technology Corporation Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20080259748 | OPTICAL DISC AND OPTICAL DISC APPARATUS - An optical disc includes a SPOKE potion for detecting a position in a circumferential direction of the optical disc, which is formed on an inner or outer circumferential side relative to a data recording area and visible image drawing area. A signal portion in which each signal is constituted by a pair of light nonreflecting portion and light reflecting portion is formed in the SPOKE portion. The signal portion includes a first signal portion in which signal widths of the nonreflecting portion and reflecting portion are the same and a second signal portion in which the signal widths of the nonreflecting portion and reflecting portion are changed. | 10-23-2008 |