Information recording method and apparatus, function recording method and apparatus, and information reproducing method and apparatus
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United States of America Patent
Stats
-
Aug 17, 1999
Grant Date -
N/A
app pub date -
Jul 30, 1996
filing date -
Jul 31, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A record signal corresponding to record information to be recorded to a record medium is scrambled, and the scrambled record signal is recorded to the record medium. The information recording method is provided with: generating a scramble function to scramble the record signal in correspondence with a record medium identification code, which is set in advance to identify the record medium; scrambling the record signal by use of the generated scramble function and outputting the scrambled record signal; recording the scrambled record signal and the record medium identification code corresponding to the scrambled record signal to the record medium; generating an inverse-scramble function to decipher the scrambled record signal on the basis of the generated scramble function; and outputting the generated inverse-scramble function and the record medium identification code corresponding to the generated inverse-scramble function as one set to the external.
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