Back to results
US 6,714,500 B2Granted
Optical disc drive and signal processing method
AssigneeKabushiki Kaisha Toshiba
InventorAkihiko Doi
Life of this patent
Estimating the term…
Abstract
An optical disc drive according to an embodiment of this invention includes a light-receiving section for receiving light, a conversion section for converting the light received by the light-receiving section into an electrical signal, a generation section for generating a slewing rate control signal, and a signal processing section for processing the electrical signal using the slewing rate control signal.
Claims5
An optical disc drive comprising:
- an emitting section configured to emit a disc with a laser beam;
- a light-receiving section configured to receive the laser beam emitted by said emitting section;
- a converting section configured to convert the laser beam received by said light-receiving section into an electrical signal;
- a slewing rate control section set after said converting section and configured to generate a slewing rate control signal in accordance with a rotational velocity of the disc, and to reduce a change in amplitude of the electrical signal on the basis of the slewing rate control signal;
- and
- a signal processing section configured to process the electrical signal controlled by said slewing rate control section.
3 more elements
A signal processing method comprising the steps of:
- receiving light;
- converting the received light into an electrical signal;
- processing the electrical signal using a slewing rate control signal;
- generating a slewing rate control signal in accordance with a rotational velocity of a disc;
- and
- reducing a change in amplitude of the electrical signal on the basis of the slewing rate control signal.
3 more elements
Dependencies are inferred from the claim text.