Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1990-05-16
1992-05-19
Levy, Stuart S.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 38, G11B 1722, G11B 1726
Patent
active
051154196
ABSTRACT:
A disc playback device capable of continuously playing back a plurality of discs such as Compact Discs includes a main body, a tray movable relative to the main body for being received in and drawn out of the main body, a rotary table mounted rotatably on the tray, and a plurality of disc holding sections formed about a rotation axis of the rotary table. A turntable, a disc clamper and a reproducing head are provided in the main body separately from the tray. A recess is formed in the radial direction of the rotary table in each disc holding section and opens outwardly at the outer periphery of the rotary table. A disc mounting mechanism is provided for setting a disc held in the disc holding section on the turntable and clamping it by the disc clamper. The tray is formed with an opening communicating with the recess of the disc holding section in a disc playback position. The tray can be drawn out of the main body by keeping clear of the turntable and the reproducing head through the recess of the disc holding section and the opening of the tray while the disc is being played back. The disc holding sections hold discs in an inclined position in the circumferential direction of the rotary table and presence or absence of discs is detected by a reproducing head when the rotary table is rotated. While the tray is moved in and out of the main body, a pickup servo gain is increased to stabilize playback of a disc while the tray is being moved.
REFERENCES:
patent: 4519055 (1985-05-01), Gilson
patent: 4670866 (1987-06-01), Hasegawa et al.
patent: 4755978 (1988-07-01), Takizawa et al.
Magnavox (U.S. Philips Corp) "Smart" Advertisement copyright 1990, Playbox Dec. 1990 issue.
Magnavox Operating Instructions, CDC550/CDC552, Oct. 1989.
Akiyama Hiroo
Tamada Kazuhiro
Levy Stuart S.
Wells Kenneth B.
Yamaha Corporation
LandOfFree
Disc playback device capable of continuously playing back a plur does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disc playback device capable of continuously playing back a plur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disc playback device capable of continuously playing back a plur will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2419901