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Device-for-playing-back-disks

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Device for playing back disks

Details

Inventors: Asano, Michihiro;
Assignee: Nakamichi Corporation (Tokyo, JP)
Primary Examiner: Levy; Stuart S.
Assistant Examiner: Letscher; George J.
Attorney, Agent or Firm: Morrison Law Firm

A disk player has a magazine for storing disks and a disk transport mechanism transporting a selected disk between a playback position outside the magazine and a store position located entirely within the magazine. The carriages are stacked upon each other and pivotally supported within the magazine. The carriages are extracted from the stack by lifting a front end of a carriage above a selected carriage. A transport mechanism moves carriages between the magazine, the playback position and an eject position. A disk sensor senses the presence of a disk in the transport mechanism before the carriage is reinstalled in the magazine and a memory updated to indicate that the selected carriage is occupied by a disk. If an extra disk is inadvertently placed on the selected carriage, after the transport mechanism reinstalls the selected carriage, the sensor indicates that a disk remains on the transport mechanism. The transport mechanism then brings the extra disk to the eject position before moving the magazine to prevent the extra disk from being damaged by the movement of the magazine.

DETAILED DESCRIPTION It is an object of the present invention to provide a disk playback mechanism that overcomes the drawbacks of the prior art device.
It is another object of the present invention to provide a disk playback mechanism, with a vertically moving magazine and with a playback mechanism that permits a disk being played back to overlap disks stored in the magazine, which is capable of operating with high reliability.
Briefly stated, there is described, a disk player having a magazine for storing disks and a disk transport mechanism transporting a selected disk between a playback position outside the magazine and a store position located entirely within the magazine.
The carriages are stacked upon each other and pivotally supported within the magazine.
The carriages are extracted from the stack by lifting a front end of a carriage above a selected carriage.
A transport mechanism moves carriages between the magazine, the playback position and an eject position.
A disk sensor senses the presence of a disk in the transport mechanism before the carriage is reinstalled in the magazine and a memory updated to indicate that the selected carriage is occupied by a disk.
If an extra disk is inadvertently placed on the selected carriage, after the transport mechanism reinstalls the selected carriage, the sensor indicates that a disk remains on the transport mechanism.
The transport mechanism then brings the extra disk to the eject position before moving the magazine to prevent the extra disk from being damaged by the movement of the magazine.
According to an embodiment of the present invention, there is described, a device for playing back disks comprising: means for storing a plurality of disks, the device having a playback position, means for reading a selected one of the disks at the playback position, means for transporting the selected between the playback position and a store position in the means for storing, the means for transporting having means for holding at least the selected one, means for detecting a presence of a further disk in addition to the selected disk held by the means for holding and means for displaying an error message responsively to the means for detecting

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