Optical disc

Details Optical disc Optical disc

2005-09-20

2005-09-20

Chen, Tianjie (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Optical card record

Reexamination Certificate

active

06948182

ABSTRACT:
The present invention provides a nonstandard-sized optical disc capable of decreasing thickness even when a plurality of optical discs are piled up and assuredly positioning in a disc main body fitting dented portion of a disc player. This optical disc includes a disc main body and an outwardly protruded plate portion protruded outwardly from the disc main body. The outwardly protruded plate portion is formed to have a thickness thinner than that of the disc main body, and the lower portion of the disc main body is formed to have a size to be fitted in the disc main body fitting dented portion in a tray of a disc player. An outer peripheral edge of the lower portion of the disc main body has at least two positioning points to be disposed in the proximity of an inner peripheral edge of the disc main body fitting dented portion to thereby position the disc main body in the disc main body fitting dented portion when the lower portion of the disc main body is fitted in the disc main body fitting dented portion.

REFERENCES:
patent: 6016298 (2000-01-01), Fischer
patent: 6304544 (2001-10-01), Pierson et al.
patent: 6400675 (2002-06-01), Everidge et al.
patent: 6510124 (2003-01-01), Wood
patent: 10-269620 (1998-10-01), None
patent: 3064414 (2000-01-01), None
patent: 2001-56966 (2001-02-01), None

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