Optical disc recording apparatus for overwriting information on

Details Optical disc recording apparatus for overwriting information on Optical disc recording apparatus for overwriting information on

1998-04-22

2000-08-22

Hindi, Nabil

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

G11B 700

Patent

active

061082899

ABSTRACT:
An optical disc recording apparatus which can record information, which is provided in a packet having a fixed length, on an optical disc on an individual user data block by using the fixed packet write method. A plurality of tracks having a plurality of packets are formed on a recording area of the optical disc. Each of the packets has the same number of user data blocks. Information is recorded at once on an individual packet basis. A buffer stores new recording information to be recorded on the optical disc. A controller controls a recording operation of the new recording information on the optical disc so that, when a recording area of the new recording information is totally included in a previously recorded packet, previously recorded information recorded in the previously recorded packet is read and stored in the buffer. The previously recorded information stored in the buffer is overwritten by the new recording information. Then, the new recording information in the buffer is recorded in the previously recorded packet.

REFERENCES:
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patent: 5706271 (1998-01-01), Hashimoto
patent: 5774434 (1998-06-01), Arataki et al.
patent: 5878010 (1999-03-01), Okamoto et al.
patent: 5883869 (1999-03-01), Tamai et al.
patent: 5995471 (1999-11-01), Saoyama et al.

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