Method for stopping spindle motor of optical disc drive
AssigneePhilips & Lite-On Digital Solutions Corporation
InventorChih-Yuan Hu
Life of this patent
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Abstract
A method for stopping a spindle motor of an optical disc drive includes the following steps. Firstly, in response to the receipt of a disabling command, the spindle motor of the optical disc drive is braked, so that a rotating speed of the spindle motor is reduced to be smaller than or equal to a predetermined rotating speed during a specified time period, wherein the predetermined rotating speed is greater than zero. Then, a preparatory stopping procedure of an optical pickup head is performed during the specified time period. Afterwards, the optical disc drive responds that the disabling command has been executed after the specified time period.
Claims10
A method for stopping a spindle motor of an optical disc drive, the method comprising steps of:
- braking the spindle motor of the optical disc drive in response to receipt of a disabling command, so that a rotating speed of the spindle motor is reduced to be smaller than or equal to a predetermined rotating speed during a specified time period, wherein the predetermined rotating speed is greater than zero;
- performing a preparatory stopping procedure of an optical pickup head during the specified time period, wherein the step of performing the preparatory stopping procedure of the optical pickup head overlaps the step of braking the spindle motor of the optical disc drive;
- and
- responding that the disabling command has been executed after the specified time period.
A method for stopping a spindle motor of an optical disc drive, the method comprising steps of:
- braking the spindle motor of the optical disc drive in response to receipt of a disabling command, so that a rotating speed of the spindle motor is reduced to be smaller than or equal to a predetermined rotating speed during a specified time period, wherein the predetermined rotating speed is greater than zero;
- performing a preparatory stopping procedure of an optical pickup head during the specified time period;
- and
- responding that the disabling command has been executed after the specified time period,
- wherein the preparatory stopping procedure of the optical pickup head is performed by a step of moving the optical pickup head to a position corresponding to an inner track of an optical disc, a step of disabling an actuator control unit of the optical pickup head, or a step of turning off a laser source.
Dependencies are inferred from the claim text.