Optical disc device
View Patent ↗An optical disc device includes an optical pickup and a controller. The optical pickup is configured to emit light to an optical disc and detect the light reflected on the optical disc. The controller is configured to perform adjustment of at least one of spherical aberration, focus balance and lens tilt of the optical pickup based on a reproduction signal corresponding to the light detected by the optical pickup. The controller is further configured to perform the adjustment based on a level of the reproduction signal of adjustment-use recording. The controller is further configured to perform re-adjustment after performing subsequent adjustment-use recording in response to the level of the reproduction signal of the adjustment-use recording being at or below a specific threshold after the adjustment.
1. An optical disc device comprising:
an optical pickup configured to emit light to an optical disc and detect the light reflected on the optical disc; and
a controller configured to perform adjustment of at least one of spherical aberration, focus balance and lens tilt of the optical pickup based on a reproduction signal corresponding to the light detected by the optical pickup,
the controller being further configured to perform the adjustment based on a level of the reproduction signal of adjustment-use recording, the controller being further configured to perform re-adjustment after performing subsequent adjustment-use recording in response to the level of the reproduction signal of the adjustment-use recording being at or below a specific threshold after the adjustment.
2. The optical disc device according to claim 1 , wherein
the controller is further configured to perform the adjustment-use recording to the optical disc while the optical disc is in an unrecorded state.
3. The optical disc device according to claim 1 , wherein
the controller is further configured to temporarily set an adjustment result of the adjustment as a temporary setting in response to the level of the reproduction signal of the adjustment-use recording being at or below the specific threshold after the adjustment, the controller being further configured to perform the subsequent adjustment-use recording based on the temporary setting such that the level of the reproduction signal increases.
4. The optical disc device according to claim 1 , wherein
the controller is further configured to perform the adjustment and the re-adjustment such that the levels of the reproduction signals of the adjustment-use recording and the subsequent adjustment-use recording become maximum during both the adjustment and the re-adjustment, respectively.
5. The optical disc device according to claim 1 , wherein
the controller is further configured to perform the re-adjustment after performing the subsequent adjustment-use recording in an unrecorded region of the optical disc in response to the level of the reproduction signal of the adjustment-use recording being at or below the specific threshold after the adjustment, the unrecorded region of the optical disc being different from a region in which the adjustment-use recording has been performed.
6. The optical disc device according to claim 1 , wherein
the controller is further configured to repeat the subsequent adjustment-use recording and the re-adjustment subsequent to the subsequent adjustment-use recording until the level of the reproduction signal of the subsequent adjustment-use recording becomes higher than the specific threshold after the re-adjustment.
7. The optical disc device according to claim 1 , wherein
the controller is further configured to perform adjustment of a position of a lens while the adjustment of one of the spherical aberration and the lens tilt of the optical pickup is performed.
8. The optical disc device according to claim 1 , wherein
the controller is further configured to move the optical pickup to a region of the optical disc in which the adjustment-use recording has been performed in response to performing the adjustment-use recording.
9. The optical disc device according to claim 8 , wherein
the controller is further configured to perform adjustment of a position of a lens to a position at which the level of the reproduction signal of the adjustment-use recording becomes maximum while holding the optical pickup in the region of the optical disc.
10. The optical disc device according to claim 9 , wherein
the controller is further configured to determine if the level of the reproduction signal of the adjustment-use recording is at or below the specific threshold after the adjustment of the position of the lens.