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| A code-error correcting device, which
can scramble or de-scramble the digital data in accordance with address information. |
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During the transmission of the digital data with the address information,
a code-error correcting device generates a pseudo-random function, then operates
as the exclusive OR circuit for the pseudo-random function and the digital data. |
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An initial value for generating the pseudo-random function is set to be the
address information or data block information related to the address information. |
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During the reproduction, the initial value is set to be the demodulated address
information or demodulated data block information related to the demodulated address
information. |
[References] |
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DVD Specifications for Read-Only Disc Part I,Index.3.2.6 |
[Offering Patent] |
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USP 5,014,274 |
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others [ JP, EP/DE·FR·GB·NL, KR] |
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Copyright(C) 2002-2005 DVD 6C LICENSING AGENCY All Rights Reserved.
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