Information recording medium drive device, information processing apparatus, data replay control system, data replay control method, and computer program

1. An information recording medium drive device for reading data from an information recording medium and outputting the read data to an information processing apparatus, the information recording medium drive device comprising:

a replay unit for replaying the data comprising audio and/or video content from the information recording medium;

a data input and output unit that outputs the replayed data to the information processing apparatus while receiving processed replayed data from the information processing apparatus, wherein the processed replayed data is data that has been read from the information recording medium by the information recording medium drive device, received by the information processing apparatus from the information recording medium drive device and processed in a predetermined process in the information processing apparatus, and wherein the predetermined process comprises at least one of decrypting, decoding and decompressing the replayed data;

an electronic watermark detector located within the information recording medium drive device for performing an electronic watermark detection process on the processed replayed data; and

a controller that controls data outputting of the replayed data to the information processing apparatus by the data input and output unit based on a result of the electronic watermark detection process on the processed replayed data of the electronic watermark detector;

wherein the data outputting to the information processing apparatus and inputting of the processed replayed data supplied from the information processing apparatus are performed using a common signal path, and

wherein the controller continues or quits the data outputting to the information processing apparatus based on the result of the electronic watermark detection process on the processed data.

2. An information recording medium drive device according to claim 1 , wherein the information recording medium stores data that is encrypted and/or encoded, and

wherein the electronic watermark detector performs the electronic watermark detection process on processed data that is generated based on a baseband signal that is input to the information processing apparatus from the information recording medium drive device and is then decrypted and/or decompressed by the information processing apparatus.

3. An information recording medium drive device according to claim 1 , wherein the electronic watermark detector detects an identification embedded as an electronic watermark in data stored in the information recording medium, and

wherein the controller continues or quits the data outputting to the information processing apparatus depending on a result of the detection of the identification.

4. An information recording medium drive device according to claim 1 , wherein the electronic watermark detector detects copy control information embedded as an electronic watermark in data stored in the information recording medium, and

wherein the controller continues or quits the data outputting to the information processing apparatus based on a result of the detection of the copy control information.

5. An information recording medium drive device according to claim 1 , further comprising a recording medium type determination unit that determines whether or not the information recording medium is a read-only memory type permitting no data writing,

wherein the controller continues or quits the data outputting to the information processing apparatus based on a result of the detection of an electronic watermark provided by the electronic watermark detector and a result of the determination of the recording medium type provided by the recording medium type determination unit.

6. An information recording medium drive device according to claim 1 , further comprising an authenticator for performing an authentication process with the information processing apparatus,

wherein authentication is established on condition that data stored in the information recording medium is output to the information processing apparatus.

7. An information recording medium drive device according to claim 6 , wherein a data decryption key is encrypted based on a session key produced in the authentication process and the encrypted data decryption key is output to the information processing apparatus.

8. A data replay control method for an information recording medium drive device for reading data from an information recording medium and outputting the read data to an information processing apparatus, the data replay control method comprising:

replaying the data comprising audio and/or video content from the information recording medium;

outputting the replayed data to the information processing apparatus while inputting processed replayed data from the information processing apparatus, wherein the processed replayed data is data that has been read from the information recording medium by the information recording medium drive device, received by the information processing apparatus from the information recording medium drive device and processed in a predetermined process in the information processing apparatus, and wherein the predetermined process comprises at least one of decrypting, decoding and decompressing the replayed data;

performing, within the information recording medium drive device, an electronic watermark detection process on the processed data; and

controlling data outputting by continuing or quitting the data outputting of the replayed data to the information processing apparatus based on a result of the electronic watermark detection process in the electronic watermark detecting step,

wherein the data outputting to the information processing apparatus and inputting of the processed replayed data supplied from the information processing apparatus are performed using a common signal path.

9. A data replay control method according to claim 8 , wherein the information recording medium stores data that is encrypted and/or encoded, and

wherein the electronic watermark detecting step comprises performing the electronic watermark detection process on the processed data that is generated based on a baseband signal that is input to the information processing apparatus from the information recording medium drive device and is then decrypted and/or decompressed by the information processing apparatus.

10. A data replay control method according to claim 8 , wherein the electronic watermark detecting step comprises detecting an identification embedded as an electronic watermark in the data stored in the information recording medium, and

wherein the controlling step comprises continuing or quitting the data outputting to the information processing apparatus depending on a result of the detection of the identification.

11. A data replay control method according to claim 8 , wherein the electronic watermark detecting step comprises detecting copy control information embedded as an electronic watermark in the data stored in the information recording medium, and

wherein the controlling step comprises continuing or quitting the data outputting to the information processing apparatus based on a result of the detection of the copy control information.

12. A data replay control method according to claim 8 , further comprising a recording medium type determining step for determining whether or not the information recording medium is a read-only memory type permitting no data writing,

wherein the controlling step comprises continuing or quitting the data outputting to the information processing apparatus based on a result of the detection of an electronic watermark provided in the electronic watermark detecting step and a result of the determination of the recording medium type provided in the recording medium type determining step.

13. A data replay control method according to claim 8 , further comprising an authenticating step for performing an authentication process with the information processing apparatus,

wherein authentication is established in the authenticating step on condition that the data stored in the information recording medium is output to the information processing apparatus.

14. A data replay control method according to claim 13 , further comprising outputting, to the information processing apparatus, a data decryption key that is encrypted based on a session key produced in the authenticating step.

15. A computer-readable medium encoded with computer-executable instructions that, when executed, perform a data replay control method for an information recording medium drive device for reading data from an information recording medium and outputting the read data to an information processing apparatus, the data replay control method comprising:

replaying the data comprising audio and/or video content from the information recording medium;

outputting the replayed data to the information processing apparatus while inputting processed replayed data from the information processing apparatus, wherein the processed replayed data is data that has been read from the information recording medium by the information recording medium drive device, received by the information processing apparatus from the information recording medium drive device and processed in a predetermined process in the information processing apparatus, and wherein the predetermined process comprises at least one of decrypting, decoding and decompressing the replayed data;

performing, within the information recording medium drive device, an electronic watermark detection process on the replayed processed data; and

controlling data outputting by continuing or quitting the data outputting to the information processing apparatus based on a result of the electronic watermark detection process,

wherein the data outputting to the information processing apparatus and inputting of the processed replayed data supplied from the information processing apparatus are performed using a common signal path.

16. An information recording medium drive device for reading data from an information recording medium and outputting the read data to an information processing apparatus, the information recording medium drive device comprising:

a replay means for replaying the data comprising audio and/or video content from the information recording medium;

a data input and output means for outputting the replayed data to the information processing apparatus while receiving processed replayed data from the information processing apparatus, wherein the processed replayed data is data that has been read from the information recording medium by the information recording medium drive device, received by the information processing apparatus from the information recording medium drive device and processed in a predetermined process in the information processing apparatus, and wherein the predetermined process comprises at least one of decrypting, decoding and decompressing the replayed data;

an electronic watermark detecting means located within the information recording medium drive device for performing an electronic watermark detection process on the processed replayed data; and

a control means for controlling data outputting of the replayed data to the information processing apparatus by the data input and output unit based on a result of electronic watermark detection process of the electronic watermark detecting means,

wherein the data outputting to the information processing apparatus and inputting of the processed replayed data supplied from the information processing apparatus are performed using a common signal path, and

wherein the control means continues or quits the data outputting to the information processing apparatus based on the result of the electronic watermark detection process of the processed data of the electronic watermark detecting means.

17. A data replay control method for an information recording medium drive device for reading data from an information recording medium and outputting the read data to an information processing apparatus, the data replay control method comprising steps of:

replaying data comprising audio and/or video content from the information recording medium;

outputting the replayed data to the information processing apparatus while inputting processed replayed data from the information processing apparatus, wherein the processed replayed data is data that has been read from the information recording medium by the information recording medium drive device, received by the information processing apparatus from the information recording medium drive device and processed in a predetermined process in the information processing apparatus, and wherein the predetermined process comprises at least one of decrypting, decoding and decompressing the replayed data;

performing, within the information recording medium drive device, an electronic watermark detection process on the processed replayed data; and

continuing or quitting outputting of the replayed data to the information processing apparatus based on a result of the electronic watermark detection process on the processed replayed data, wherein the data outputting to the information processing apparatus and inputting of the processed replayed data supplied from the information processing apparatus are performed using a common signal path.

18. A computer-readable medium encoded with computer-executable instructions that, when executed, perform a data replay control method for an information recording medium drive device for reading data from an information recording medium and outputting the read data to an information processing apparatus, the data replay control method comprising steps of:

replaying the data comprising audio and/or video content from the information recording medium;

outputting the replayed data to the information processing apparatus while inputting processed replayed data from the information processing apparatus, wherein the processed replayed data is data that has been read from the information recording medium by the information recording medium drive device, received by the information processing apparatus from the information recording medium drive device and processed in a predetermined process in the information processing a apparatus, and wherein the predetermined process comprises at least one of decrypting, decoding and decompressing the replayed data;

performing, within the information recording medium drive device, an electronic watermark detection process on the processed replayed data; and

continuing or quitting outputting of the replayed data to the information processing apparatus based on a result of the electronic watermark detection process on the processed replayed data, wherein the data outputting to the information processing apparatus and inputting of the processed replayed data supplied from the information processing apparatus are performed using a common signal path.