Optical record carrier recording method and apparatus

Details Optical record carrier recording method and apparatus Optical record carrier recording method and apparatus

2006-11-14

2006-11-14

Edun, Muhammad (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047500, C369S059100, C369S059110, C369S116000

Reexamination Certificate

active

07136336

ABSTRACT:
An optical record carrier recording method forms pits and lands by directing a radiation beam (12) onto a recording surface (21) of an optical record carrier (20). The radiation beam for each pit to be recorded is set to at least one write power level (Pw) capable of forming a pit during a write power irradiation period (31) and, for each land between the pits, to at least one bottom power level (P0) incapable of forming a pit during a bottom power irradiation period (51). In order to embed bits of an additional LML channel in the main channel without increasing the overall jitter, the bottom power level (P0) is temporarily raised to an LML land power level (Pl1) during an LML land irradiation period (55) for forming an LML land, the LML land power level (Pl1) being close to the write power level (Pw), and that the write power level (Pw) is temporarily lowered to an LML pit power level (Pp1) during an LML pit irradiation period (35) for forming an LML pit, the LML pit power level (Pp1) being close to the bottom power level (P0).

REFERENCES:
patent: 5305297 (1994-04-01), Nishiuchi et al.
patent: 6362754 (2002-03-01), Van Dijk et al.
patent: 6504806 (2003-01-01), Nakajo
patent: 6704269 (2004-03-01), Ogawa
patent: 2001143263 (2001-05-01), None
patent: WO0057417 (2000-09-01), None
“Multiple Values Per Pit On Optical Storage” IBM Technical Disclosure Bulletin, IBM Corp. New York, US, vol. 36, No. 7, Jul. 1, 1993, pp. 187-188.

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