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| Number | Title | Issue Date |
| 8151287 | Optical pickup feed device for sliding optical pickup The present invention is to provide a pickup feed device to accurately position an optical pickup in place with miniaturization. The pickup device includes a lead screw attached to a movable chassis, a pickup portion, a rack member, a torsion coil spring, a projecti... | 04/03/2012 |
| 8127320 | Thread motor and playback device A thread motor is disclosed. The thread motor includes: a cylindrical rotor; a ring-shaped gear provided at an outer peripheral surface of the cylindrical rotor; and a flange portion provided at the outer peripheral surface of the cylindrical rotor, opposed to the g... | 02/28/2012 |
| 8117629 | Optical disc device A lever having an end rotatably supported by a rack is disposed, a long groove is formed in either another end of the lever or a base chassis and extends in a direction approximately perpendicular to a direction of transporting an optical pickup, a fulcrum member is... | 02/14/2012 |
| 7496939 | Energy delivery mechanism An energy delivery mechanism includes a first driven gear, a second driven gear, and a connecting member for interconnecting the first driven gear and the second driven gear. The connecting member is secured to the first driven gear, and detachably engaged with the ... | 02/24/2009 |
| 7398538 | Pickup unit homing mechanism for a disk drive unit A disk drive unit for a disk includes a mounting plate, a spindle motor assembly, a slide mechanism provided with a slide, a pickup unit mounted on the slide, a first transmission member operatively connected with the slide, and a second transmission member. The fir... | 07/08/2008 |
| 7346915 | Compact and portable optical disc drive Various embodiments of the present invention are directed to a compact, portable, external optical disc drives. In one embodiment of the present invention, an optical disc drive is comprised of one or more substrates having a width smaller than the diameter of an op... | 03/18/2008 |
| 7287263 | Disc apparatus A disc apparatus includes a casing having an opening for insertion/ejection of a disc, a rotator for clamping and rotating the disc, a disc-transferring member, a head facing a recorded face of the disc and being movable in radial directions of the disc, a rack mova... | 10/23/2007 |
| 7266829 | Optical head apparatus, optical head transferring method and optical disk apparatus An optical head apparatus comprises a head unit for irradiating an optical disk with a light beam for recording or reproducing data, a holder for fixing the head unit thereto, a support unit for movably supporting the holder in a radial direction of the optical disk... | 09/04/2007 |
| 7191456 | Optical pickup head feeding device An optical pickup head feeding device (1) for driving an optical pickup head (4) of an optical recording/reproducing apparatus (100) has a motor (11), a motor housing (12) accommodating the motor, a first cone gear (13), a t... | 03/13/2007 |
| 7143425 | Disc drive apparatus A disc drive apparatus is composed of a disc carrying mechanism, a turntable (1), a pickup unit (2), a pickup transport mechanism, a reversible motor (7), a first transmission system (8A), a second transmission system (8B), and a t... | 11/28/2006 |
| 7127727 | Tray locking mechanism used in an optical disk drive An optical disk drive includes a main body and a tray. A tray locking mechanism includes a base fixed to the tray, a locking device installed on the base for combining with or separating from a stop pin of the main body, a transmission device installed on the base f... | 10/24/2006 |
| 7066044 | Transmission apparatus A transmission apparatus includes a gear having a plurality of gear teeth and a rack having a plurality of rack teeth to mesh with the gear teeth. The rack further has an end formed as a cantilever beam structure. In an initial contact of the gear teeth with the rac... | 06/27/2006 |
| 7024673 | Drive system for a scanning device of an information recording or reproduction device The invention relates to a drive system for a scanning device of an information recording or reproduction device, with a carriage coupled to a toothed rack, a gear wheel mechanism driving the toothed rack and a gear housing. It achieves the object of designing a dri... | 04/04/2006 |
| 6938264 | Lash-eliminating device for worm-and-gear assembly A lash-eliminating device for a worm-and-gear assembly. The worm-and-gear assembly includes a worm and a worm gear engaged therewith. The lash-eliminating device comprises a base, a frame, a motor, and a biasing member. The worm gear is disposed on the base. The fra... | 08/30/2005 |
| 6922836 | Disk drive apparatus The present invention is directed to a disk drive apparatus in which a disk tray travels forward or backward in a chassis casing to load or unload the disk tray. The chassis casing is constructed with a base chassis 1 and/or cover chassis 2 having open... | 07/26/2005 |
| 6918129 | Disc drive head driver The present invention eliminates variations in the engagement between a rack and a pinion, which drive a recording head, to enable the head to move speedily and smoothly. A head driver includes a rack provided on a recording head that slidingly moves over a recordin... | 07/12/2005 |
| 5812510 | Disc player with a gear mechanism in which a disc tray and a disc clamping device are linked in gear by a gear group In a disc player, a disc tray has a first rack which is formed on a lower surface of the disc tray along a direction in which a disc is to be transferred. A first and of a clamping device is rotated about a second end of the clamping device which serves a... | 09/22/1998 |
| 5796702 | Optical pickup system for an optical disc player An optical pickup system is provided for two kinds of discs which are different in thickness. A rack is provided to be moved in the radial direction of the disc beyond a reproducing stroke area of a pickup to over-stroke areas at opposite sides of the rep... | 08/18/1998 |
| 5506830 | Disk player A disk player has a guide member for guiding an optical pickup carrier along both sides of a double-sided disk. In order to prevent interference between the pickup carrier and the periphery of the disk during turning movement of the pickup carrier around ... | 04/09/1996 |
| 5473592 | Gear assembly for disk transport apparatus A gear assembly wherein a rotation force is bufferredly transferred is provided. The gear assembly includes a first gear having a ring-shaped engagement protruding portion having a discontinuity and a second gear having a ring-shaped engagement recessed g... | 12/05/1995 |
| 5434843 | Pickup turnover apparatus of a disk player A pickup turnove apparatus of a disk player of a new turn-type in which a U-shape shuttle device acting as a pickup turnover means is provided at the rear of a pickup feeding plate of the disk player and turned over from a lower position to an upper posit... | 07/18/1995 |
| 5331624 | Pickup feed mechanism A simplified pickup feed mechanism fox a dual-sided disc is disclosed, which prevents a pickup main body from being moved in an unbalanced state while investing the orientation of the pickup main body. The pickup feed mechanism comprises a moving shaft wh... | 07/19/1994 |
| 5313351 | Twin disk player A disk player for loading and unloading a pair of disks while closing and opening a door to the disk player under control of a single motor capable of rotating in both the clockwise direction and the counterclockwise direction. During rotation in one dire... | 05/17/1994 |
| 5307339 | Translating apparatus for an optical pickup device A translating apparatus for an optical pickup device comprises an optical pickup device for radiating an optical disc with a light beam, a rack member attached to the optical pickup device, a supporting device having a guide portion for guiding the optica... | 04/26/1994 |
| 5008876 | Carriage lock apparatus A carriage on which a head is mounted has a rack which can be engaged with gear teeth located on a specific position. The gear teeth can be moved so as to engage with and disengage from the rack. The rack has a first pitch different from a second pitch of... | 04/16/1991 |
| 4807219 | Optical pickup feed unit of optical disk player An optical disk player is provided, which includes a drive chassis provided with: a spindle motor for driving a turntable on which an optical disk is supported; a photopickup with a rack which is movable while being guided in the direction of approaching/... | 02/21/1989 |
| 4442516 | Drive mechanism for disc player with bearing supported slider A reading device drive mechanism for a video disk player including a chassis, a pair of guide rails mounted parallel to one another on the chassis, a slider contacting corresponding sides of the guide rails through bearings, and a retainer for restricting... | 04/10/1984 |
| 4191381 | Apparatus for facilitating carriage return in video disc player To load a record into a player, such as a video disc player, a record caddy is inserted into the player housing through an input slot. The player is equipped with rails for guiding caddy insertion along a path. A record extracting mechanism mounted in the... | 03/04/1980 |
