Disc reproducing apparatus and disc recording apparatus

Details Disc reproducing apparatus and disc recording apparatus Disc reproducing apparatus and disc recording apparatus

1993-02-04

1995-04-25

Epps, Georgia Y.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 58, 369 60, 369 47, G11B 700

Patent

active

054105269

ABSTRACT:
A disc reproducing apparatus for reproducing voice data recorded on an optical disc by successive predetermined amounts and recording the reproduced data temporarily in a RAM for subsequent continuous reproduction, and a disc recording apparatus for reading out the voice data written in RAM by successive predetermined amounts for recording on the optical disc. A RAM controlling circuit is provided in the disc reproducing apparatus or the disc recording apparatus for dividing the storage region of RAM at least into a voice data recording region for recording the voice data and an error flag recording region for storing error flags, calculating the residual vacant space of the voice data recording region from the voice data write addresses for writing the voice data recording region and the voice data read address for reading the voice data from the voice data recording region and controlling the voice data write address while controlling the error flag write address for recording error flags in the error flag recording region in accordance with the voice data write address. Since there is no necessity of providing plural private RAMs for the voice data recording region and for the error flag storage region it is possible to write and read plural types of data in one and the same RAM.

REFERENCES:
patent: 4110564 (1978-08-01), Andresen
patent: 4860272 (1989-08-01), Nishikawa et al.
patent: 4872073 (1989-10-01), Fincher et al.
patent: 5130863 (1992-07-01), Yamashita et al.
patent: 5157646 (1992-10-01), Amemiya et al.
patent: 5243588 (1993-09-01), Maeda et al.
Patent Abstracts Of Japan, vol. 10, No. 264 (P-495) (2320), 9 Sep. 1986 & JP-A-61 087 278 (Hitachi).

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