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US 2002/0056048 A1Published application
Record medium, recording apparatus for record medium, recording method for record medium, reproducing apparatus for record medium, reproducing medium for record medium, and data output controlling method
AssigneeSony Corporation
InventorsYoichiro Sako, Tatsuya Inokuchi
Life of this patent
Estimating the term…
Abstract
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.
Claims37
A recording method for a record medium, comprising 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.
A recording apparatus for a record medium, comprising:
- a first adding circuit portion for adding right information to one of a plurality of pieces of input data;
- a second adding circuit portion for adding right information to the plurality of pieces of the input data in the unit of the plurality of pieces of the input data;
- a signal processing portion for performing a signal process for data to which the right information has been added so as to record the processed data to the record medium;
- a recording portion for recoding data to the record medium corresponding to output data of said signal processing portion;
- and
- a selecting circuit portion for selectively supplying output data of said first adding circuit portion or output data of said second adding circuit portion to said signal processing portion.
3 more elements
A recording method for a record medium, comprising the steps of:
- performing an encrypting process for 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 for which the encrypting process has been performed so as to record the processed data to the record medium.
A recording apparatus for a record medium, comprising:
- a first encrypting circuit portion for performing an encrypting process for one of a plurality of pieces of input data;
- a second encrypting circuit portion for performing an encrypting process for a plurality of pieces of the input data in the unit of the plurality of pieces of the input data;
- a signal processing portion for performing a signal process for the encrypted data so as to record the processed data to the record medium;
- a recording portion for recording data to the record medium corresponding to output data of said signal processing portion;
- and
- a selecting circuit portion for selectively supplying output data of said first encrypting circuit portion or output data of said second encrypting circuit.
3 more elements
A recording method for a record medium, comprising the steps of:
- adding right information containing at least copyright management information to a plurality of pieces of input data in the unit of at least one of the plurality of pieces of the input data;
- performing an encrypting process for the data to which the right information has been added;
- adding right information containing at least copyright management information to the plurality of pieces of the data in the unit of the plurality of pieces of the data for which the encrypting process has been performed;
- performing an encrypting process for the data to which the right information has been added;
- performing a signal process for the plurality of pieces of the data for which the encrypting process has been performed;
- and
- recording the data for which the signal process has been performed to the record medium.
4 more elements
A reproducing method for a record medium, comprising the steps of:
- reading at least key information from data that is read from the record medium;
- determining whether an encoding process containing at least an encrypting process has been performed for data that has been read from the record medium in the unit of at least one of a plurality of pieces of the data or an encoding process containing at least an encrypting process has been performed for the data that has been read from the record medium in the unit of the plurality of pieces of the data;
- decoding the plurality of pieces of data that has been read from the record medium in the unit of one of the plurality of the data using the key information when the determined result at the determining step represents that the encoding process has been performed for the data that has been read from the record medium in the unit of one of the plurality of pieces of the data;
- and
- decoding the plurality of pieces of data that has been read from the record medium using the key information in the unit of the plurality of pieces of the data when the determined result at the determining step represents that the encoding process has been performed for the data that has been read from the record medium in the unit of the plurality of pieces of the data.
2 more elements
A reproducing method for a record medium, comprising the steps of:
- reading right information containing at least copyright management information from data that has been read from a record medium;
- determining whether or not data that is read from the record medium corresponding to a data read command is capable of being read in the unit of one of a plurality of pieces of the data corresponding to the right information that has been read;
- and
- reading the data designated with the data read command from the record medium when the determined result at the determining step represents that the data is capable of being read in the unit of one of the plurality of pieces of the data.
1 more element
A reproducing method for a record medium, comprising the steps of:
- reading right information containing at least copyright management information from data that has been read from a record medium;
- determining whether or not a plurality of pieces of data are capable of being read corresponding to the right information that has been read when a read command for reading a plurality of pieces of the data is issued;
- and
- reading the plurality of pieces of the data designated with the read command when the determining step represents that the data is capable of being read in the unit of a plurality of pieces of the data.
1 more element
An output controlling method for data, comprising the steps of:
- determining whether data is capable of being read in the unit of one or a plurality of pieces of the data corresponding to right information containing at least copyright management information added to the data when a data read command for reading one of the plurality of pieces of data is issued;
- and
- controlling the output of the data designated with the data read command when the determined result at the determining step represents that the data is capable of being read in the unit of one of the plurality of pieces of the data.
A record medium on which data has been recorded in the unit of which right information containing at least copyright management information has been added or in the unit of which an encrypting process has been performed.
Dependencies are inferred from the claim text.