Information recording apparatus and method, information reproduction apparatus and method, information recording medium, program storage medium and program
First Claim
1. An information recording apparatus, comprising:
- an acquisition unit operable to acquire first copy control information representative of whether recording of input contents onto a recording medium is permitted;
a production unit operable to produce, based on the first copy control information, control information capable of representing whether copying of the contents recorded on the recording medium is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
a recording unit operable to record the control information onto the recording medium together with the contents.
1 Assignment
0 Petitions
Accused Products
Abstract
An information recording apparatus and method and an information reproduction apparatus and method enable security information of AV data to be managed appropriately. A copy control information detection section acquires copy control information (CCI_i) of a video signal supplied from a terminal and outputs it to a controller. The controller determines the values of is_not_free and is_encrypted based on the copy control information supplied from the copy control information detection section and outputs the values to a source packetization section. Is_not_free and is_encrypted represent a limitation to copying and an encryption mode of data recorded on a recording medium, respectively, and are described in the header of a source packet produced by a source packetization section. The source packet produced by the source packetization section is encrypted in accordance with the value of is_encrypted, undergoes a predetermined process by an encryption section, and is then recorded onto the recording medium.
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Citations
22 Claims
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1. An information recording apparatus, comprising:
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an acquisition unit operable to acquire first copy control information representative of whether recording of input contents onto a recording medium is permitted;
a production unit operable to produce, based on the first copy control information, control information capable of representing whether copying of the contents recorded on the recording medium is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
a recording unit operable to record the control information onto the recording medium together with the contents. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An information recording method, comprising:
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acquiring copy control information representative of whether recording of input contents onto a recording medium is permitted;
producing, based on the copy control information, control information capable of representing whether copying of the contents recorded on the recording medium is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
recording the control information onto the recording medium together with the contents.
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13. A program storage medium recorded with a computer-readable program, the program comprising:
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acquiring copy control information representative of whether recording of input contents onto a recording medium is permitted;
producing, based on the copy control information, control information capable of representing whether copying of the contents recorded on the recording medium is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
recording the control information onto the recording medium together with the contents.
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14. A system for recording information, comprising:
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a processor operable to execute instructions; and
instructions, the instructions including;
acquiring copy control information representative of whether recording of input contents onto a recording medium is permitted;
producing, based on the copy control information, control information capable of representing whether copying of the contents recorded on the recording medium is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
recording the control information onto the recording medium together with the contents.
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15. An information recording medium recorded with instructions, the instructions comprising:
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copy control information representative of whether recording of input contents onto a recording medium is permitted; and
control information based on the copy control information and capable of representing whether copying of the contents recorded on the recording medium is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted.
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16. An information reproduction apparatus for reproducing contents recorded on a recording medium, comprising:
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an acquisition unit operable to acquire copy control information added to the contents based on whether recording of the contents onto the recording medium was permitted and control information capable of representing whether copying of the contents is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
a decrypting unit operable to decrypt the contents when the control information represents that the contents are in an encrypted state. - View Dependent Claims (17, 18, 19)
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20. A method for reproducing contents recorded on a recording medium, comprising:
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acquiring copy control information added to the contents based on whether recording of the contents onto the recording medium was permitted and control information capable of representing whether copying of the contents is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
decrypting the contents when the control information represents that the contents are in an encrypted state.
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21. A program storage medium recorded with a program for reproducing contents recorded on a recording medium, the program comprising:
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acquiring copy control information added to the contents based on whether recording of the contents onto the recording medium was permitted and control information capable of representing whether copying of the contents is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
decrypting the contents when the control information represents that the contents are in an encrypted state.
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22. A system for reproducing contents recorded on a recording medium, comprising:
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a processor operable to execute instructions; and
instructions, the instructions including;
acquiring copy control information added to the contents based on whether recording of the contents onto the recording medium was permitted and control information capable of representing whether copying of the contents is permitted and whether the contents are in an encrypted state regardless of whether the copying of the contents is permitted; and
decrypting the contents when the control information represents that the contents are in an encrypted state.
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Specification