Method of recording a multi-layer optically recordable information carrier
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United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Nov 3, 1999
filing date -
Nov 9, 1998
priority date (Note) -
Expired
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Abstract
A circuit derives information about the changes of the transmission coefficients of the layers due to writing information onto these layers. On the basis of the derived information a circuit determines the sequence in which the layers are to be recorded so as to minimize the required intensity of the laser beam, thereby precluding unnecessary heating of the carrier and allowing comparatively simple and cheap laser beam sources to be used.
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