Information recording apparatus, information recording method, information reproducing apparatus, information reproducing method, and information recording medium
First Claim
1. An information recording apparatus for recording reproducing limit information for controlling reproducing manner of recording information which is encrypted and supplied from an external source to be recorded in a recording medium, together with the recording information, into the recording medium, said apparatus comprising:
- an adding device for adding the reproducing limit information to the supplied recording information to generate added recording information;
an embedding device for embedding the reproducing limit information on the recording information within the generated added recording information in a way of preventing from illegal detection to generate embedded recording information; and
a recording device for recording the generated embedded recording information into the recording medium.
1 Assignment
0 Petitions
Accused Products
Abstract
Recording information is recorded after adding reproducing limit information for controlling the number of reproducing times to the recording information and embedding the identical reproducing limit information thereon separately from the above in a way of preventing illegal detection. Then, after confirming a coincidence between the reproducing limit information added and the reproducing limit information embedded, the recording information is controlled to be supplied to an external source according to the same reproducing limit information.
-
Citations
30 Claims
-
1. An information recording apparatus for recording reproducing limit information for controlling reproducing manner of recording information which is encrypted and supplied from an external source to be recorded in a recording medium, together with the recording information, into the recording medium, said apparatus comprising:
-
an adding device for adding the reproducing limit information to the supplied recording information to generate added recording information;
an embedding device for embedding the reproducing limit information on the recording information within the generated added recording information in a way of preventing from illegal detection to generate embedded recording information; and
a recording device for recording the generated embedded recording information into the recording medium. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An information reproducing apparatus for reproducing recording information, which is encrypted and recorded with an reproducing limit information for controlling reproducing manner of the recording information in a recording medium, based on the reproducing limit information, said reproducing limit information which is added to the recording information and also embedded on the recording information in a way of preventing from illegal detection, said information reproducing apparatus comprising:
-
a reproducing limit information detecting device for detecting the added reproducing limit information;
a reproducing limit information extracting device for extracting the embedded reproducing limit information from the recording information;
a recording information extracting device for extracting original recording information from the recording information on which the reproducing limit information is embedded; and
an output control device for, only when the detected reproducing limit information matches the extracted reproducing limit information, supplying the extracted original recording information based on the reproducing limit information. - View Dependent Claims (9, 10)
-
-
11. An information recording method for recording reproducing limit information for controlling reproducing manner of recording information which is encrypted and supplied from an external source to be recorded in a recording medium, together with the recording information, into the recording medium, said method comprising:
-
an adding process for adding the reproducing limit information to the supplied recording information to generate added recording information;
an embedding process for embedding the reproducing limit information on the recording information within the generated added recording information in a way of preventing from illegal detection to generate embedded recording information; and
a recording process for recording the generated embedded recording information into the recording medium. - View Dependent Claims (12, 13, 14, 15, 16, 17, 19, 20)
-
-
18. An information reproducing method for reproducing recording information, which is encrypted and recorded with an reproducing limit information for controlling reproducing manner of the recording information in a recording medium, based on the reproducing limit information, said reproducing limit information which is added to the recording information and also embedded on the recording information in a way of preventing from illegal detection, said method comprising:
-
a reproducing limit information detecting process for detecting the added reproducing limit information;
a reproducing limit information extracting process for extracting the embedded reproducing limit information from the recording information;
a recording information extracting process for extracting original recording information from the recording information on which the reproducing limit information is embedded; and
an output control process for, only when the detected reproducing limit information matches the extracted reproducing limit information, supplying the extracted original recording information based on the reproducing limit information.
-
-
21. An information recording medium in which a recording control program is recorded in a readable way by a recording computer included in an information recording apparatus for recording reproducing limit information for controlling reproducing manner of recording information which is encrypted and supplied from an external source to be recorded in a recording medium, together with the recording information, into the recording medium, said recording program causing the recording computer to function as:
-
an adding device for adding the reproducing limit information to the supplied recording information to generate added recording information;
an embedding device for embedding the reproducing limit information on the recording information within the generated added recording information in a way of preventing from illegal detection to generate embedded recording information; and
a recording device for recording the generated embedded recording information into the recording medium. - View Dependent Claims (22, 23, 24, 25, 26, 27, 29, 30)
-
-
28. An information recording medium in which a reproducing control program is recorded in a readable way by a reproducing computer included in an information reproducing apparatus for reproducing recording information, which is encrypted and recorded with an reproducing limit information for controlling reproducing manner of the recording information in a recording medium, based on the reproducing limit information, said reproducing limit information which is added to the recording information and also embedded on the recording information in a way of preventing from illegal detection, said reproducing program causing the reproducing computer to function as:
-
a reproducing limit information detecting device for detecting the added reproducing limit information;
a reproducing limit information extracting device for extracting the embedded reproducing limit information from the recording information;
a recording information extracting device for extracting original recording information from the recording information on which the reproducing limit information is embedded; and
an output control device for, only when the detected reproducing limit information matches the extracted reproducing limit information, supplying the extracted original recording information based on the reproducing limit information.
-
Specification