Patent ID: RE39253

Claim:
Apparatus us or at least recording user data to be recorded on a record medium, comprising: record encoding means for converting original user data into encoded user data of a predetermined record code; error correcting code generating means for generating original error correcting code data for correcting an error with respect to the encoded user data; converting means for converting the error correcting code data into encoded correcting code data adapted to the predetermined record code , the recording means recording the encoded record data and the encoded correcting code data on the recording medium ; recording means including mesas for writing data including the encoded record data and encoded error correcting code data on the record medium; and reproducing means including reading means for reading data from the record medium including the encoded user data and the encoded error correcting code data; inverse converting means for inversely converting the encoded error correcting code data read by the reading means into the original error correcting code data; error correcting means for correcting an error with respect to the encoded user data read by the reading means based on the original error correcting code data; and decoding means for decoding the encoded user data having errors which have been corrected by the error correcting means to the original user data.