| PHILIPS & LITE-ON DIGITAL SOLUTIONS CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20120036520 | Slot-In Optical Disc Drive - A slot-in optical disc drive is provided to comprise a driving element moveably disposed in the optical disc and capable of moving toward a disc loading direction and a disc unloading direction, wherein the driving element has a loading drive groove; a disc loading element pivoted in the optical disc drive, wherein the disc loading element has a loading driven pin for operating with the loading drive groove; a disc unloading element pivoted in the optical disc drive; and an elastic element used for providing an elastic force on the disc unloading element. When the driving element moves toward the disc unloading direction, the loading driven pin relatively moves in the loading drive groove and drives the disc loading element to rotate and push a disc into the optical disc drive. When the driving element moves toward the disc loading direction, the elastic force provided from the elastic element drives the disc unloading element to rotate and push the disc out of the optical disc. | 02-09-2012 |
| 20110298289 | ELECTRONIC APPARATUS WITH PROTECTION CIRCUIT - An electronic apparatus includes a first power source input terminal configured to receive a first driving voltage or a second driving voltage, wherein the second driving voltage is greater than the first driving voltage; a second power source input terminal configured to receive the first driving voltage or the second driving voltage; a protection circuit connected to the first power source input terminal; a first voltage circuit connected to the protection circuit and driven by the first driving voltage; and a second voltage circuit connected to the second power source input terminal and driven by the second driving voltage; wherein the second driving voltage is blocked by the protection circuit and not further transmitted to the first voltage circuit while the second driving voltage is inputted to the first power source input terminal. | 12-08-2011 |
| 20110283301 | Optical Disk Drive with Protection Design Against Broken Disk - An optical disk drive with a protection design against a broken disk comprises the following devices of: a chassis; an upper cover mounted above the chassis and having a bended part on a front end thereof; a tray mounted between the chassis and the upper cover for supporting an optical disk; a faceplate mounted on the front end of the upper cover; a door mounted on the front end of the tray; a double-layered retaining plate having a first retaining plate and a second retaining plate located respectively on both front and rear sides of the bended part. The bended part is located behind the faceplate, and a space is formed between the bended part and the faceplate | 11-17-2011 |
| 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 |
| 20110219388 | Slim Optical Disc Drive - The present invention discloses a slim optical disc drive comprising a case with an upper cover and a lower cover, a disc tray for loading and unloading an optical disc, a first circuit board disposed on the lower cover, a second circuit board disposed on the disc tray, and a flexible flat cable for connecting the first circuit board and the second circuit board. The flexible flat cable comprises a fixed portion and a movable portion, and a patch is adhered to the movable portion of the flexible flat cable. The patch has a first end and a second end, and the width of the first end is larger than that of the second end. | 09-08-2011 |
| 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 |
| 20100103552 | Method for Distinguishing Unbalanced Disc - A method for distinguishing unbalanced disc in an optical disc reproducing/recording apparatus, comprising following steps: moving an optical pickup head to a first position of an optical disc; rotating the optical disc to a predetermined rotating speed; transferring a focus error signal produced by the optical pickup head to a focus control voltage signal; controlling the optical pickup head by the focus control voltage signal to maintain a focus light spot produced by the optical pickup head on the optical disc; and distinguishing if the optical disc is an unbalanced disc according to the focus control voltage signal. | 04-29-2010 |
| 20100083294 | Method for Reading/Writing Data for a Disk Drive - A method for reading/writing data of a disk drive that includes a spindle motor for rotating a disk and a head for reading/writing data from and to the disk. The method includes the steps of; (i) adjusting a position of the head for the first time to space apart the head from a center of the disk at a specific distance, wherein when the head is spaced apart from the center of the disk at the specific distance, the disk vibrates at the minimum magnitude during raising operation of the spindle motor from a low speed to a high speed; (ii) raising the spindle motor from the low speed to the high speed; and (iii) adjusting a position of the head for the second time to move the head to a desired track in the disk for reading/writing data in the desired track. | 04-01-2010 |
| 20100083293 | Optical Disk Drive with Protection Design Against Broken Disk - An optical disk drive with a protection design against a broken disk comprises the following devices of: a chassis; an upper cover mounted above the chassis; a tray mounted between the chassis and the upper cover for supporting an optical disk; a faceplate mounted on the front end of the upper cover and having a first inclined plane; a door mounted on the front end of the tray and having a second inclined plane with a gap opposite to the first inclined plane for forming an inclined directed channel between the faceplate and the door. | 04-01-2010 |
| 20100077417 | Optical Disk Drive Capable of Inhibiting Vibration of Optical Disk - An optical disk drive is disclosed. The distance between the surface of the optical disk and the inner upper surface of the optical disk drive is less than 3.5 mm while performing the data reading or writing procedures on the optical disk loaded in the optical disk drive. | 03-25-2010 |
| 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 |
| 20090323483 | Acting Track-Crossing During Tracking Error Adjust - A method for enhancing the optical initializing operation comprises: sending a radial error signal from an optical pick-up unit to a radial error signal calibration unit; sending the radial error signal from the optical pick-up unit to an offset adjuster; sending a calibrated radial error signal from the radial error signal calibration unit to the offset adjuster and a gain adjuster; sending a radial actuator (RA) signal from the radial error signal calibration unit to activate a radial actuator during an initialization or a period for calculating RE signal calibrating parameters. | 12-31-2009 |
| 20090122680 | Method for determining a parameter space for finding optimal operating parameters for reading or writing a storage medium - A method for determining a parameter space for finding optimal operating parameters for reading or writing storage medium is provided. In an embodiment of the invention, the method includes: setting a first parameter range of a first operating parameter and a second parameter range of a second operating parameter; normalizing the first and the second parameter ranges respectively and forming an initial parameter space based on the normalized first and second parameter ranges; and rotating the initial parameter space by a rotation angle and forming an actual parameter space based on the rotated initial parameter space. The actual parameter space is expected to result in more reliable optimal operating parameters. | 05-14-2009 |
| 20090122675 | Method for determining optimal operating parameters for reading or writing a storage medium - A method for determining optimal operating parameters for reading or writing a storage medium, with the consideration of failed experiment. In an embodiment of the invention, if one of a set of experiments, executed within pre-defined ranges with respect to two parameters, leads to an invalid characteristic measurement value, and the corresponding values of the two parameters occur substantially at ends of the respective ranges, at least one search operation is determined according to the failed experiment(s) and a new set of experiments is generated according to the previous set of experiments and the search operation to avoid the failed experiment(s). The new set of experiments can result in more reliable optimal operating parameters. | 05-14-2009 |
| 20090116362 | OPTICAL RECORD CARRIER WITH A VISUALLY DETECTABLE PATTERN AS WELL AS AN APPARATUS AND A METHOD FOR RECORDING A VISUALLY DETECTABLE PATTERN ON AN OPTICAL RECORD CARRIER. - A system is described comprising an optical record carrier and an apparatus for recording the optical record carrier. The apparatus comprises a facility ( | 05-07-2009 |
| 20090103424 | OPTICAL RECORD CARRIER, AS WELL AS A METHOD AND AN APPARATUS FOR RECORDING A DISC SHAPED OPTICAL RECORD CARRIER - An apparatus is described for recording an optical record carrier ( | 04-23-2009 |
| 20090092010 | METHOD AND APPARATUS FOR DETERMINING WRITE STRATEGY PARAMETER VALUES FOR WRITING DATA ON AN OPTICAL DISK - The invention relates to a method for determining write strategy parameter values for writing data on an optical disk from a group of optical disks of different types using an optical disk drive, in particular to different types of BD disks. The method includes identifying the type of optical disk, the type of optical disk being associated with a standard write strategy with standard write strategy parameters; determining a cluster write strategy with cluster write strategy parameters, the number of cluster write strategy parameters being smaller than the number of standard write strategy parameters; initializing the cluster write strategy parameters with initial cluster write strategy parameter values; and optimizing cluster write strategy parameter values for at least a subset of the cluster write strategy parameters. The optimizing is preferably performed on optimization sets of cluster write strategy parameters in a pre-determined optimization order. | 04-09-2009 |
| 20090059742 | OPTICAL DISK DRIVE WITH SPHERICAL ABERRATION MEASUREMENT AND METHOD OF MEASURING SPHERICAL ABERRATION IN AN OPTICAL DISK DRIVE - The invention relates to an optical disk drive. The optical disk drive has an objective lens to be driven by a focus actuator with a focus offset for focusing an incident beam onto an optical disk into a spot with a spherical aberration, and a processor to derive a first and a second characteristic from a sensor output signal and obtain a spherical aberration correction value (SA) from a pre-determined function, the pre-determined function defining a spherical aberration correction value in dependence on a focus offset difference value (ΔFO). The focus offset difference value (ΔFO) is determined from a difference between a second optimal focus offset at which the second characteristic is optimal and a first optimal focus offset at which the first characteristic is optimal. The spherical aberration correction value (SA) can be used to achieve a correction to the spherical aberration of the spot. | 03-05-2009 |
| 20080298209 | FOCUSING CONTROL METHOD FOR READING/WRITING OPTICAL DISC - An optical reading/writing apparatus has an optical head that includes a collimator and a lens. For efficient and reliable focusing control for writing an empty optical disk, calibration of focus offset and spherical aberration is executed by setting a boundary and performing data-reading in an OPC area only with combinations of focus offset and spherical aberration within the boundary. Accordingly, an optimum combination of focus offset and spherical aberration is determined for focusing compensation in subsequent writing operation of the empty disk. | 12-04-2008 |
