Abstract: A library controller including a storage executes first registration processing of, in a case where registration completion information indicating registration completion in a cartridge management system is not stored in a cartridge memory provided in a cartridge, registering identification information for identifying the cartridge and the registration completion information in the cartridge memory, overwriting prohibition processing of prohibiting overwriting to the identification information and the registration completion information registered in the cartridge memory, second registration processing of registering the identification information in the storage, and execution processing of executing reading and writing of user data from and to the cartridge in a case where the identification information stored in the storage coincides with the identification information stored in the cartridge memory.

Abstract: A disk player includes a body, a tray having a first seating recess and a second seating recess to load disks of a first size and a second size and slidably inserted into or ejected from a replay unit of the body, a single sensor disposed in the body to detect loading or unloading of a disk on the tray, size of the loaded disk, and insertion or ejection of the tray, and a plurality of slits penetratingly formed on the tray with different lengths to correspond to the sensor when the tray is inserted or ejected.

Abstract: An optical disc changer having a main body, a tray slidably installed in the main body, a roulette rotatably installed at the tray to accommodate a plurality of optical discs, an optical pickup device to selectively reproduce one of the optical discs accommodated on the roulette, and a damping unit to absorb shock when the tray is loaded in and unloaded from the main body to prevent defective reproduction of data from the optical disc.

Abstract: 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, a detection section for detecting an address of each accommodation portion and presence or absence of a disk in each accommodation portion, a recording/reproduction section for recording and/or reproducing an information signal onto and/or from a disk, and a disk takeout mechanism for taking out and transporting a disk from an accommodation portion to the recording/reproduction section and for taking out and transporting the disk from the recording/reproduction section to an accommodation portion.

Abstract: A computing system is adapted for use with an optical disk drive, and includes a motherboard and a control key. The motherboard is adapted to be coupled electrically to the optical disk drive. The control key is coupled electrically to the motherboard, and is operable so as to provide a control signal to the motherboard. The motherboard is adapted to control disk loading and disk unloading operations of the optical disk drive in accordance with the control signal provided by the control key.

Abstract: A disk recording and/or reproducing apparatus recording and/or reproducing information on and/or from anyone of a plurality of disk-like recording mediums. Freedom in design is improved by effectively utilizing spaces in which respective portions and mechanisms of the apparatus are disposed. In the apparatus, a first planet gear and second planet gear meshed with a racked portion are switched, whereby the disk tray is moveable between a loading position at which the disk tray is loaded into the apparatus and an eject position at which the disk tray is ejected to a location outside the apparatus body.

Abstract: A carousel type changer includes a disk reproducing section (a pickup 62 and so on) which is provided on a tray 21 and adapted to clamp a disk held on a disk holding part 34b and to reproduce the clamped disk, and a disk recording section (a pickup 52 and so on) which is provided separately from the tray 21, and adapted to clamp a disk held on a disk holding part 34a when the tray is in a storing position and to record, on the clamped disk, signals reproduced by the disk reproducing section. In a state where the disk recording section have clamped the disk 15, a rotary table 31 is allowed to rotate.

Abstract: The present invention provides a disc tray shift device including a disc tray having at least one disc placement portion, a rack having an arc portion and at least one straight portion, the rack being arranged on the disc tray, and a sun gear, a planet gear which has a large-tooth-portion engaged with the sun gear and a small-tooth-portion engaged with the rack, and a shift mechanism for shifting the disc tray between a position where the disc placement portion is withdrawn externally and a position where the disc placement portion is housed internally, wherein teeth of at least one of the sun gear, the planet gear, and the rack are profile-shifted.

Abstract: The invention relates to a loading mechanism for loading and/or unloading an electronic device (1) with more than one data memory (2), which data memories are read and/or written in drives of electronic devices (1) by means of read and/or write units and have no moving parts in this respect, in which the electronic device (1) is loaded and/or unloaded via a loading opening (3), the dimensions of the loading opening (3) are adjusted to the dimensions of the data memory (2) and a transport mechanism (4) is used for transporting the data memory (2) or data memories (2) between a loading position and a play position.