Method and apparatus for reproducing information from a recordab

Details Method and apparatus for reproducing information from a recordab Method and apparatus for reproducing information from a recordab

1992-07-02

1994-09-27

Psitos, Aristotelis

Dynamic information storage or retrieval

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

Mechanism control by the control signal

369 58, 369 54, 369 32, G11B 509, G11B 700

Patent

active

053512260

ABSTRACT:
An apparatus for reproducing information from a recordable optical disc having an information recording area for recording a plurality of information pieces and an index information recording area for recording index information with respect to the plurality of information pieces. The apparatus includes a driving device for rotationally driving the optical disc, a pickup device for irradiating a light beam onto the optical disc so as to read information recorded on the optical disc, a transferring device for transferring the pickup device in a radial direction of the optical disc, a memory for storing a temporary index information, and a control device for controlling the driving device, the pickup device and the transferring device and for producing the temporary index information on the basis of a read information read by the pickup device. The control device produces and stores the temporary index information into the memory when no index information is recorded on the index information recording area. Accordingly, desired information can be reproduced from the program area of a partial disc.

REFERENCES:
patent: 4835631 (1989-05-01), Miyake et al.
patent: 5177720 (1993-01-01), Kondo
Patent Abstracts of Japan vol. 14, No. 398 (P-1097) Aug. 28, 1990, & JP-A-02 148 488 (Kenwood Corp) Jun. 7, 1990.
European Search Report Application No. EP 92 30 6232 dated Mar. 31, 1993.

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