The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2000
Filed:
Apr. 07, 1998
Sony Corporation, Tokyo, JP;
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.