Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1995-02-19
1998-10-27
Levy, Stuart S.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369185, G11B 1910
Patent
active
058286330
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a recording and/or reproducing apparatus for a disc-shaped recording medium, such as an optical disc or a magneto-optical disc. More particularly, it relates to a recording and/or reproducing apparatus for a disc-shaped recording medium having an exchange function of disc-shaped recording media in which one of the disc-shaped recording media is selectively taken out from a container unit containing a large number of the disc-shaped recording media and information signals recorded on the thus taken out recording medium, such as music signals, are reproduced from the disc-shaped recording medium, or the information signals, such as music signals, are recorded on the disc-shaped recording medium.
BACKGROUND ART
In general, a disc reproducing apparatus in which one of disc-shaped recording media, such as replay-only optical discs, is taken out of a disc housing unit housing a large number of the optical discs, and the information signals, such as music signals, recorded on the optical disc, are reproduced, includes, in addition to the disc housing unit housing a large number of the optical discs, a disc transporting mechanism for selectively transporting a sole optical disc housed within the disc housing unit, and a reproducing unit for reproducing the information signals recorded on the optical disc transported by the disc transporting mechanism.
The reproducing unit of the disc reproducing apparatus includes a disc rotating mechanism holding the sole optical disc selected from the disc housing unit and an optical pickup unit movable along the radius of the optical disc rotated by the disc rotating mechanism for reproducing the information signals, such as music sound signals, recorded on the optical disc.
Further, the reproducing unit includes, in addition to the disc transporting mechanism for delivering the sole optical disc selected from a large number of the optical discs housed within the disc housing unit, to the disc table for loading and a clamp mechanism for clamping the optical disc thus transported by the disc transporting mechanism onto the disc table for rotation in unison with the disc table.
For selecting the optical disc reproduced by the reproducing unit, the disc housing unit housing a large number of the optical discs is moved for moving a desired optical disc to a position registering with the disc transporting mechanism and the optical disc is then taken out of the disc housing unit by the disc transporting mechanism. Alternatively, the disc housing unit is moved to a position registering with a desired optical disc housed in the disc housing unit and the optical disc is then taken out of the disc housing unit. The optical disc, positioned in register with the disc transporting mechanism, is transported by the disc transporting mechanism onto the disc rotating mechanism of the reproducing unit and loaded on the disc table constituting the disc rotating mechanism. The optical disc is then scanned by the optical pickup unit as the disc is rotated by the disc rotating mechanism for reproducing the recorded information signals.
For selecting one of a large number of the optical discs housed within the disc housing unit, serial numbers are accorded to disc holding sections each containing and holding an optical disc. This serial number is defined as being the number of the optical disc contained and held in each disc holding section and designated for specifying the optical disc contained and held within the disc holding section. That is, with the disc reproducing apparatus having a disc housing unit capable of housing a large number of optical discs, the serial number affixed to each disc holding section of the disc housing unit is specified for specifying the optical disc contained in the disc housing section and the optical disc thus specified is transported by the disc transporting mechanism to the disc reproducing unit for reproduction by the disc reproducing unit.
For reproducing the optical disc by the disc reproducing unit, the number inpu
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Inatani Akihisa
Ishikawa Masami
Katsuyama Akira
Minami Shuji
Mita Kanji
Levy Stuart S.
Maioli Jay H.
Miller Brian E.
Sony Corporation
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