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US 7,095,692 B2Granted
Optical disc apparatus and recording power determining method thereof
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMamoru Shoji, Shuichi Tasaka, Eiichi Igami, Kenji Koishi
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Abstract
A method of determining a recording power used to record information to an optical disc, includes carrying out test recording which records predetermined data to a predetermined area of the optical disc to determine the recording power, and recording predetermined data with a power equal to or more than the determined recording power to an area adjacent to the predetermined area.
Claims3
A method of determining a recording power used to record information to an optical disc, comprising:
- carrying out test recording which records a predetermined data to a predetermined test recording area to determine the recording power while a light spot moves in the direction from the inner periphery to the outer periphery and the predetermined test recording area is used from the outer part;
- and
- updating the recording power used for the test recording for each predetermined area from the high power to the low power.
An apparatus for recording information to an optical disc, comprising:
- test recording section that carries out test recording to record a predetermined data to a predetermined test recording area for determining the recording power while a light spot moves in the direction from the inner periphery to the outer periphery and the predetermined test recording area is used from the outer part;
- and
- update section that updates the recording power used for the test recording for each predetermined area from the high power to the low power.
Dependencies are inferred from the claim text.