摘要:
A method for recording digital data in accordance with the recording format, in which the type of a loaded recording medium is identified and on the basis of the result of the identification a data format is selected for embedding sub data into data to be recorded onto the loaded recording medium so that the data are readable as optical changes. Whether the recording area in which recording is to be performed is a recording area in which the sub data should be embedded or not is discriminated, and if the result of the discrimination indicates that the area in which recording is to be carried out is a recording area in which the sub data should be recorded, the sub data are embedded and recorded into the data to be recorded in a predetermined recording area on the recording medium on the basis of the selected data format.
摘要:
Contents data processing apparatus comprising a reproducing block for reproducing contents data from a recording medium, a character information generation block for generating character information based on first information accompanied with said contents data, and a character memory for storing second information regarding growth or change.
摘要:
A recording method for a record medium is disclosed, that comprises the steps of adding right information containing at least copyright management information to at least one of a plurality of pieces of input data, and performing a signal process for the plurality of pieces of the input data in the unit of data to which the right information has been added so as to record the processed data to the record medium.
摘要:
A recording medium having at least a lead-in area, a data recording area to which data is recorded, and a lead-out area, wherein the data recording area comprises a first recording area portion to which data that has been encoded with an error correction code is recorded; and a second recording area portion to which at least data that has been encoded with a plurality of types of generation polynomials as error correction codes.
摘要:
A recording method includes the steps of generating recording data in such a manner that, when m-bit data is converted into a data symbol of n bits (m
摘要:
A digital data processing apparatus which receives digital data whose use is charged for through a data recording medium or a network and uses the received digital data by using use right data, wherein the apparatus has memory means in which use history information of the digital data has been stored, and an accumulation of uses of the digital data is monitored by use history information, and when the accumulation of the uses reaches a preset value, a transfer of the use history information is promoted.
摘要:
Six record areas for predetermined data that has been encoded and digitally modulated are formed in a data record area on a disc. The record areas have different offset compensation amounts. The offset compensation amounts allow all offset amounts that may take place in an error correction code encoder to be compensated. Thus, regardless of the offset amount generated by the error correction code encoder, encoded and modulated data that has been generated by the conventional EFM modulating system and recorded in one of the record areas securely causes DSV to deviate. Each of the record areas is set to a sufficient length that allows the effect of which DSV deviates to be recognized.
摘要:
A recording medium on which at least one piece of data that has been encoded with a first error correction code and data that can be decoded with the first error correction code and that can be decoded with a second error correction code that is different from the first error correction code.
摘要:
A digital data processing apparatus which receives digital data whose use is charged for through a data recording medium or a network and uses the received digital data by using use right data, wherein the apparatus has memory means in which use history information of the digital data has been stored, and an accumulation of uses of the digital data is monitored by use history information, and when the accumulation of the uses reaches a preset value, a transfer of the use history information is promoted.
摘要:
A method of outputting data read from a recording medium includes decoding data read from a recording medium, embedding electronic watermark information in the decoded data when the decoded data is output as recording data, and outputting the resulting data.