Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7505378 | Disk reproducing apparatus and disk reproducing method A disk reproducing apparatus capable of reproducing data that is recorded on a DVD-Audio, includes a data reproducing unit which reproduces the data, a displaying unit, and a controlling unit which controls the data reproducing unit and the displaying unit. Preferab... | 03/17/2009 |
| 7336570 | Apparatus and method for adjusting the tilt angle of an optical pickup device A disk drive apparatus for recording (writing) and/or reproducing (reading) information on an optical disk by rotating the optical disk, and adjusting the tilt angle of an optical pickup device with respect to the optical disk. A spindle chassis rotationally support... | 02/26/2008 |
| 7333403 | Carousel changer including a turntable having a plurality of trays A turntable provided in the carousel changer has a plurality of trays provided around its rotating shaft. The turntable is provided with an annular rib including a plurality of recessed portions and a plurality of raised portions. A sensor is provided to have the ri... | 02/19/2008 |
| 7257826 | Disk changer A disk changer for CD and DVD disks including a rotatable platter with several slots each adapted for receiving a disk generally needs two optical sensors. The first sensor is adapted for detecting the number of a related slot of the platter and for providing a stop... | 08/14/2007 |
| 7180840 | Method for checking disk loading status in optical disk driver A method for checking a disk loading status in an optical disk driver including the steps of: discriminating a loading status of an optical disk during multiple loading stages of the disk; transmitting information to a host connected through an interface to the opti... | 02/20/2007 |
| 7165050 | Media on demand via peering A method of protecting media files includes dividing a media file into segments. Each segment is encrypted multiple times with a different encryption key each time. Downloads of the segments are controlled such that different combinations of segments and keys are do... | 01/16/2007 |
| 7069565 | Disk identifying device In a disk identifying device, when a slanting reflecting face is irradiated with light emitted from a light emitting element while a rotary tray is rotating, most of the light reflected from the slanting reflecting face is not incident on a light receiving element, ... | 06/27/2006 |
| 6977872 | Disk changer The invention provides a disk changer wherein a disk can be replaced between different accommodation portions of a rotatable tray. The disk changer includes a rotatable tray having a plurality of annularly arranged accommodation portions, a tray rotating mechanism, ... | 12/20/2005 |
| 6810524 | Disk changer When a disk tray stops beyond or before a predetermined rotational position, there has heretofore been a likelihood of the disk tray being unable to be inhibited its rotation. As an arm portion 261b is displaced counterclockwise, a shaft portion 262... | 10/26/2004 |
| 6680882 | System for reproducing a disc An annular disc holder is provided for holding a plurality of discs. The disc holder is rotatably mounted on a base and is guided by a guiding device provided between the disc holder and the base so as to be rotated about an axis.... | 01/20/2004 |
| 6556519 | Disk charger with circular disk housing and centrally arranged playback unit A disk recording/reproducing apparatus including a housing for accommodating a plurality of disks in an upright position along a circumference thereof, a disk driving device for recording/reproducing a disk, and a disk conveying belt for conveying the dis... | 04/29/2003 |
| 6005831 | Roulette-type disk changer A disk changer includes a round roulette having three receiving planes, three sets of identification throughholes for detecting an identification number of the receiving plane and three sets of start/stop throughholes, therein each of the receiving planes... | 12/21/1999 |
| 5959951 | Recording and/or reproducing apparatus for disc-shaped recording medium A recording and/or reproducing apparatus has a rotatable housing unit containing a large number of discs arranged in the erect or upright position. The housing unit is arranged on a pivot and the discs are held in the upright or erected positions in the h... | 09/28/1999 |
| 5892738 | Disk recording-playback device and disk loading or unloading method A disk playback device comprises a magazine having a plurality of disk spaces for accommodating disks in an upright position, and an inlet-outlet portion provided externally of the magazine for permitting the disk to pass therethrough into the magazine fr... | 04/06/1999 |
| 5867459 | Disc changer with rotatable disc support and disc player including the disc changer A disc changer for bringing disc-shaped information carriers into and out of a position. The disc changer includes a supporting body and a disc-shaped disc support which is supported by the supporting body, is arranged to be movable relative to the body, ... | 02/02/1999 |
| 5848035 | Disk playback device and method of controlling the device A magazine having a plurality of reset detecting portions arranged concentrically with the magazine and corresponding to disk accommodating spaces having respective predetermined identification numbers. A position index group is disposed between each two ... | 12/08/1998 |
| 5828633 | Disc recording and/or reproducing changer with disc transporting mechanism and disc detector A recording and/or reproducing apparatus for discs includes a housing unit housing a large number of discs, a recording and/or reproducing unit on which one of the discs held within a large number of disc holders provided in the housing unit is selectivel... | 10/27/1998 |
| 5754502 | Rotating magazine type disk playback device with escape preventing ring and auxiliary access A magazine for accommodating a plurality of disks positioned upright is rotatably mounted on a chassis covered with a cabinet. An escape preventing ring is provided above the chassis outside the magazine, and the cabinet is formed in a side wall thereof w... | 05/19/1998 |
| 5541896 | Inter-leaved carousel for information storage mediums A device for storing and retrieving Information Storage Media in which the Information Storage Media are maintained at an angle and in an interleaved arrangement. The device consists of a series of tray cartridges, a mechanism for pulling trays from the c... | 07/30/1996 |
| 5541897 | Multi-carousel library with double disk receptacles and single disk retainer A double storage multi-carousel recordable media library is provided which includes a plurality of vertically stacked carousels mounted for rotation about a vertically extending central axis. Each carousel has a plurality of receptacles which are angularl... | 07/30/1996 |
| 5293362 | Optical disc play-back device of the carousel type, having a mechanism for reducing access type to any selected disc An optical disc playback device of the so-called "carousel" type comprises a disc transport turntable rotatably mounted within the player housing. The underside of the turntable has an annular ridge with notches formed therein, and the housing comprises a... | 03/08/1994 |
| 5191569 | Disk playback device A disk playback device includes a magazine for several disks and trays for supporting the disks, a magazine housing for the magazine, a disk playback section for playing back data recorded on a disk and a tray transport section for transporting a tray, su... | 03/02/1993 |
