Method of controlling th ewriting power of a laser beam and optical recorder
A method of controlling the writing power of a laser beam in an optical recorder and an optical recorder having means for controlling the writing power of the laser beam are provided. The invention is directed to a Walking Optimum Power Control (Walking OPC) during writing onto an optical storage me...
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Format | Patent |
Language | English |
Published |
24.04.2008
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Subjects | |
Online Access | Get full text |
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Abstract | A method of controlling the writing power of a laser beam in an optical recorder and an optical recorder having means for controlling the writing power of the laser beam are provided. The invention is directed to a Walking Optimum Power Control (Walking OPC) during writing onto an optical storage medium having two storage layers. The method comprises the steps of: incrementing a first counter ( 20 ) when a writing power control is performed with respect to a writing operation onto the first storage layer ( 16 ); incrementing a second counter ( 22 ) when a writing power control is performed with respect to a writing operation onto the second storage layer ( 18 ); calculating a first waiting time between two writing power control operations with respect to the first storage layer ( 16 ) under consideration of the first counter ( 20 ); and calculating a second waiting time between two writing power control operations with respect to the second storage layer ( 18 ) under consideration of the second counter ( 22 ). |
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AbstractList | A method of controlling the writing power of a laser beam in an optical recorder and an optical recorder having means for controlling the writing power of the laser beam are provided. The invention is directed to a Walking Optimum Power Control (Walking OPC) during writing onto an optical storage medium having two storage layers. The method comprises the steps of: incrementing a first counter ( 20 ) when a writing power control is performed with respect to a writing operation onto the first storage layer ( 16 ); incrementing a second counter ( 22 ) when a writing power control is performed with respect to a writing operation onto the second storage layer ( 18 ); calculating a first waiting time between two writing power control operations with respect to the first storage layer ( 16 ) under consideration of the first counter ( 20 ); and calculating a second waiting time between two writing power control operations with respect to the second storage layer ( 18 ) under consideration of the second counter ( 22 ). |
Author | GEURTS JORIS HUIBERT JOSEPH LOOIJMANS HENDRIKUS ALBERTUS JOHANNA |
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Snippet | A method of controlling the writing power of a laser beam in an optical recorder and an optical recorder having means for controlling the writing power of the... |
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Title | Method of controlling th ewriting power of a laser beam and optical recorder |
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