Patent application number | Description | Published |
20090293076 | Tray Control Method for a Disk Drive - A tray control method for a disk drive including a tray for carrying a disk, a detect switch movable to different inclined positions for detecting different positions of the tray during tray ejection and retraction operation, a firmware for receiving signals transmitted by the detect switch upon reaching the different inclined positions so as to adjust a voltage applied to a DC motor and the speed for moving the tray to the different positions such that the tray moves stably when retracting into and ejecting from the disk drive. | 11-26-2009 |
20100070984 | Optical Disk Drive - An optical disk drive for preventing the splashed oil is provided. The optical disk drive comprises an optical pickup for reading an optical disk; a transmission apparatus and a stepping motor. The transmission apparatus comprises a rack, a connecting element and a connecting base. The connecting element connects the rack with the connecting base and the connecting base is connected to the optical pickup. The stepping motor is connected to a lead screw and the lead screw is meshed with the rack for moving the optical pickup. Lubricating oil is added between the rack and the lead screw. The transmission apparatus further comprises a blocking plate connected to the connecting element and the blocking plate is extended above the lead screw for blocking the splashed oil. | 03-18-2010 |
20100142351 | OPTICAL DISC DRIVE - A traverse for an optical disc drive comprising a base, a main shaft motor, a pick-up motor and a pick-up head module is provided. The base includes a bottom plate and a plurality of raised mesas. The bottom plate has an opening and the raised mesas connect with the bottom plate. The main shaft motor is disposed on the raised mesas. The pick-up motor is disposed on the bottom plate and the pick-up head module connects with the pick-up motor. The pick-up motor enables the pick-up head module to move inside the opening. Additionally, the present invention also provides an optical disc drive with the said traverse. | 06-10-2010 |
20100211964 | SPINDLE MOTOR AND OPTICAL DISC DRIVE HAVING THE SAME - A spindle motor includes a base plate, a stator, and a rotor. The base plate has a plurality of air-guiding holes. The stator includes a bearing portion and a plurality of coil portions. The bearing portion is fixed on the base plate. The coil portions are connected to and surrounded the bearing portion, and are disposed above the air-guiding holes. The rotor is rotatably mounted to the bearing portion and disposed adjacent the coil portions. | 08-19-2010 |
20100333119 | Tray Control Method for a Disk Drive - A tray control method for a disk drive including a tray for carrying a disk, a detect switch movable to different inclined positions for detecting different positions of the tray during tray ejection and retraction operation, a firmware for receiving signals transmitted by the detect switch upon reaching the different inclined positions so as to adjust a voltage applied to a DC motor and the speed for moving the tray to the different positions such that the tray moves stably when retracting into and ejecting from the disk drive. | 12-30-2010 |
20100333121 | Tray Control Method for a Disk Drive - A tray control method for a disk drive including a tray for carrying a disk, a detect switch movable to different inclined positions for detecting different positions of the tray during tray ejection and retraction operation, a firmware for receiving signals transmitted by the detect switch upon reaching the different inclined positions so as to adjust a voltage applied to a DC motor and the speed for moving the tray to the different positions such that the tray moves stably when retracting into and ejecting from the disk drive. | 12-30-2010 |
20110004890 | Tray Control Method for a Disk Drive - A tray control method for a disk drive including a tray for carrying a disk, a detect switch movable to different inclined positions for detecting different positions of the tray during tray ejection and retraction operation, a firmware for receiving signals transmitted by the detect switch upon reaching the different inclined positions so as to adjust a voltage applied to a DC motor and the speed for moving the tray to the different positions such that the tray moves stably when retracting into and ejecting from the disk drive. | 01-06-2011 |
20110041145 | Spindle motor for optical disc drive - The present invention provides a spindle motor for an optical disc drive. The spindle motor comprises a turntable unit and an anti-slipping element. The turntable unit has a disc mounting stand, which has a first outer diameter. The anti-slipping element is disposed on said turntable unit and has a first inner diameter, wherein the difference between the first outer diameter and the first inner diameter is less than or equal to 8 mm. | 02-17-2011 |
20110222251 | Circuit Board Fixing Device - The present invention discloses a circuit board fixing device for fixing a circuit board. The device comprises a chassis for supporting the circuit board, at least one first hook setting on the supporting surface, and at least one second hook setting on the supporting surface. The first hook has a first contact surface for clamping a first type circuit board on the supporting surface. A first distance is between the first contact surface and the supporting surface. Additionally, the second hook has a second contact surface for clamping a second type circuit board on the supporting surface. A second distance is between the second contact surface and the supporting surface. The thickness of the first type circuit board is thicker than that of the second type circuit board, and the first distance is larger than the second distance. | 09-15-2011 |
20120227062 | OPTICAL PICK-UP HEAD MODULE - An optical pick-up head module includes a base, an optical pick-up head adjusting mechanism, two guiding rods, a spring and an optical pick-up head slidably disposed on the guiding rods. The optical pick-up head adjusting mechanism includes a protrusion, a pillar and an adjusting element. The protrusion connected to the base has a sliding slot. The pillar having first and second flat surfaces is slidably disposed in the sliding slot. The first flat surface contacts an inner wall of the sliding slot. The adjusting element is screwed on the base. The spring disposed on the base pushes the pillar to contact the adjusting element by the second flat surface. When the adjusting element is rotated, the adjusting element pushes the pillar toward the base. | 09-06-2012 |
20130167164 | FRONT PANEL OF OPTICAL DISC DRIVE - A front panel of an optical disc drive is provided. The optical disc drive further includes a LED indicator for displaying a working status of the optical disc drive. The front panel includes a light-transmissible zone corresponding to the LED indicator. A thickness of the light-transmissible zone is smaller than an average thickness of the front panel. The light-transmissible zone is integrally formed with the front panel. | 06-27-2013 |
20140215501 | DISC CLAMPING STRUCTURE OF OPTICAL DISC DRIVE - A disc clamping structure is provided. A fixing base is disposed on a turntable. A plurality of ball seats are disposed around a periphery of the fixing base, and each of the ball seats has an aperture. The balls are received in the ball seats. The elastic members are disposed within the fixing base. The balls are upwardly moved, and the height of the center point of the ball is adjusted according to the thickness of the disc when the disc is clamped on the turntable. A portion of the ball is projected from the aperture of the ball seat before clamping the disc. | 07-31-2014 |