Disc reproducing apparatus and method

Details Disc reproducing apparatus and method Disc reproducing apparatus and method

1998-04-07

2000-01-25

Dinh, Tan

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

G11B 1722

Patent

active

060185066

ABSTRACT:
A disc reproducing device and a disc reproducing method for reproducing a disc-shaped recording medium (combined disc) on which first data to be reproduced at a first reproducing rate and second data to be reproduced at a second reproducing rate faster than the first reproducing rate are recorded, wherein the first data and second data are recorded in separate areas on the disc. The disc is rotatable at a second reproducing rate. Responsive to a readout command, data is read out from a desired position on the disc, and output data is checked as to whether it is the first data or the second data. If the data is the first data, the output data is stored in the buffer memory unit at the second reproducing rate. On the other hand, the first data of the buffer memory unit is read out at a first reproducing rate, while the second data is accessed if the first data is not being read out from the disc. During reproduction of the combined disc, the disc can be reproduced at a multiple speed to enable the CD-DA data and the CD-ROM data to be read out time-divisionally in parallel.

REFERENCES:
patent: 5343452 (1994-08-01), Maeda et al.
patent: 5412628 (1995-05-01), Yamazaki et al.
patent: 5706260 (1998-01-01), Kishi et al.
patent: 5768236 (1998-06-01), Kihara
patent: 5881031 (1999-03-01), Asano et al.

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