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| Number | Title | Issue Date |
| 7188348 | Optical disc drive apparatus and method An optical pickup unit (OPU) includes a moveable structure that is moved by a voice coil motor component in response to an input signal. The moveable structure includes a pattern that is moved corresponding to the input signal. An encoder reads the pattern to genera... | 03/06/2007 |
| 7111310 | Reproducing/recording apparatus There is provided a reproducing/recording apparatus that can reduce a load required for pushing in a case to activate a motor of a loading mechanism. The recording/reproducing apparatus includes a gear mechanism coupled with the motor, and a rack (43) coupled... | 09/19/2006 |
| 7100177 | Reproducing/recording apparatus A reproducing/recording apparatus including a first disk tray (11) for mounting a first disk thereon and a second disk tray (12) for mounting a second disk that is of a type different from the type of the firs disk thereon. The first disk tray (11 | 08/29/2006 |
| 7093270 | Reproducing/recording apparatus A reproducing/recording apparatus includes a first reproducing/recording mechanism (21) for reproducing data from and/or recording data onto a cartridge/disk combination (first disk) (1) or a bare disk (second disk) (2), the disk main body (1... | 08/15/2006 |
| 7089573 | Information recording/reading apparatus An information recording and/or reading apparatus has a base plate, a spindle motor for rotating a disk by the output shaft perpendicular to the base plate, a rotary alignment control device for determining the rotation position of a recording/reading head of a head... | 08/08/2006 |
| 5495455 | Magneto-optical disk recording and reading apparatus and method wherein the recording head is controlled in the radial direction of the disk to a desired position A magneto-optical disc recording apparatus includes a magnetic head, an optical head, a position detector and a controller. The magnetic head supplies a vertical magnetic field corresponding to recording data to a magneto-optical disc. The optical head em... | 02/27/1996 |
| 5479386 | Lens actuating system for an optical disk drive having a driven mass for cancelling forces A lens actuating system for an optical disk drive has an objective lens movably mounted in a movable frame with orthogonal X-, Y-, and Z-axes. A seeking servo moves the frame in the X-direction. A tracking servo moves the objective lens in the X-direction... | 12/26/1995 |
| 5289449 | Circuit for controlling optical pickup position in optical disc apparatus after power is turned off A circuit for controlling the optical pickup position in an optical disc reproducing apparatus is constructed such that when the power is applied, a user recognizes the position of the pickup which is used to pickup information from a disc with informatio... | 02/22/1994 |
| 5231615 | Carriage fixing apparatus and disk driver having such carriage fixing apparatus A carriage fixing apparatus in a disk driver detects that the head carriage which moves a head is located at a predetermined position, and then automatically fixes the head carriage by means of mechanically engaging with the head carriage.... | 07/27/1993 |
| 5193080 | Magneto-optical recording medium and apparatus Guide parts and driving parts are independently provided for an optical head and a magnetic bias field generator, and a relative position control part controls the relative positions of the two so that the both can access recording medium tracks individua... | 03/09/1993 |
| 4583212 | Record/playback head positioning device for optical disc apparatus An optical disc recording and playback apparatus has a record/playback head adapted to write data into and read them out of information tracks formed on a rotatable optical disc. A carriage carrying the head therewith is driven by a linear motor in the ra... | 04/15/1986 |
| 4527265 | Position memory for laser reproduction unit A record player apparatus with a laser reproduction unit and a movable support for moving the reproduction unit across the surface of a record as the record is rotated during a playing operation to position the reproduction unit to reproduce recordings in... | 07/02/1985 |
| 4495608 | Device for rapidly moving an optical pick-up device in an optical reproducing apparatus to a desired position on a record disc A device for rapidly moving an optical pick-up device in an optical reproducing apparatus to a desired position on a record disc having a plurality of record tracks with an information signal recorded therein, includes a tracking error signal generating c... | 01/22/1985 |
| 4437181 | Automatic record playing apparatus having a tone arm position detecting device A record disc playing apparatus has a tone arm position detecting device which comprises a position detection part comprising a plurality of reading elements aligned in line, a code part comprising a plurality of rows of code patterns shifted in the direc... | 03/13/1984 |
| 4266783 | Control mechanisms for pick-up arms of record players A control mechanism for raising, swinging and lowering the pick-up arm of a record player comprising a disc having an arcuately shaped depression in the periphery thereof. The contacts of an electrical contact sensor switch are located in the disc periphe... | 05/12/1981 |
