Content providing system, content providing method, content processing apparatus, and program therefor

• US 7,418,433 B2
• Filed: 02/12/2003
• Issued: 08/26/2008
• Est. Priority Date: 02/15/2002
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sako, Yoichiro, Utsumi, Yoshimasa, Furukawa, Shunsuke, Inokuchi, Tatsuya, Sakurai, Kazuko, Toriyama, Mitsuru, Kijima, Kaoru, Kihara, Takashi
• Primary Examiner(s): Holmes; Michael B
• Application Number:
  US10/364,327
• Publication Number:
  US 20040010705A1
• Time in Patent Office: 2,022 Days
• Field of Search: 709/246, 706/47
• US Class Current: 706/47
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]

Abstract

A method for processing content data includes the steps of, when content data is transmitted from a data provider, adding usage rule information prescribing a rule of usage of the content data to the content data and transmitting the content data with the usage rule information; receiving the transmitted content data; extracting the usage rule information from the received content data; and notifying a user of the content data of the extracted usage information.

Claims

1. A content data processing method comprising the steps of:

when content data is transmitted from a data provider, adding usage rule information prescribing a rule of usage of the content data to the content data and transmitting the content data with the usage rule information;

receiving the transmitted content data;

extracting the usage rule information from the received content data;

notifying a user of the content data of the extracted usage information;

restricting the operation of recording and/or reproducing the received content data, in accordance with the extracted usage rule information; and

when the usage rule information indicates that copying of the content data is permitted, recording the received content data in response to a process request signal input in accordance with the notified usage rule information.

2. A content data processing method according to claim 1, further comprising the step of processing the received content data in accordance with a process request signal input in accordance with the notified usage rule information.

3. A content data processing method according to claim 1, further comprising the step of extracting the usage rule information from the received content data and decrypting the received content data using the usage rule information.

4. A content data processing method according to claim 3, further comprising the step of recording or reproducing the received content data in accordance with a process request signal input in accordance with the notified usage rule information.

5. A content data processing method according to claim 4, further comprising the step of:

when the usage rule information indicates that copying of the content data is permitted, recording the received content data in response to a process request signal input in accordance with the notified usage rule information.

6. A content data processing method according to claim 1, further comprising the steps of:

when the content data to be transmitted needs fee payment, transmitting the content data after imposing usage restriction on the content data in accordance with the usage rule information; and

transmitting, to the data provider, a request signal to request release of the usage restriction in processing of the received content data.

7. A content data processing method according to claim 6, further comprising the steps of:

authenticating a user of the received content data, in response to the transmitted restriction release request signal; and

when the authentication has been successfully passed, transmitting a signal for releasing the usage restriction from the data provider.

8. A content data processing method according to claim 7, further comprising the step of:

when the signal for releasing the usage restriction is received, recording or reproducing the received content in response to a process request signal input in accordance with the notified usage rule information.

23. A content data processing method according to claim 1, when the content data is transmitted, further comprising the step of:

transmitting the content data after encrypting it.

9. A content data providing apparatus for providing content data with usage rule information for a user content data processing apparatus comprising:

a storage unit in which a plurality of content data are stored;

a content managing unit for managing the usage rule information corresponding to the content data;

an addition unit for adding the usage rule information to the content data;

a transmitting unit for transmitting the content data with the usage rule information for notifying the usage rule information to a user of the user content data processing apparatus;

a usage restriction unit for imposing usage restriction on the content data read from the storage unit, in accordance with the usage rule information; and

a processing unit for, in response to receiving a signal indicating a request for release of usage restriction, authenticating a user of a content data to be transmitted and generating a signal for releasing the usage restriction depending on the authentication result.

10. A content data providing apparatus according to claim 9, further comprising a generator for generating the usage rule information.

24. A content data providing apparatus according to claim 9, further comprising:

an encrypting unit for encrypting the content data read from the stored unit.

11. A user content data processing apparatus comprising:

a communication unit for receiving transmitted content data with usage rule information corresponding to the content data from a content data providing apparatus;

an extractor for extracting the usage rule information from the content data with the usage rule information received by the communication unit;

a display unit for notifying the extracted usage rule information to a user of the user content data processing apparatus,

wherein the usage rule information includes information indicating whether copying of the content data is permitted, and

when the usage rule information indicates that copying of the content data is permitted, the processing unit performs recording of the received content data in accordance with a process request signal input in accordance with the notified usage rule information.

12. A user content data processing apparatus according to claim 11, further comprising:

an input unit for inputting in accordance with the usage rule information notified by the display unit; and

a processing unit for processing the received content data in accordance with the input given via the input unit,

wherein the processing unit controls recording or reproducing of the received content data in accordance with the usage rule information extracted by the extractor.

13. A user content data processing apparatus according to claim 12, wherein the usage rule information includes information indicating whether copying of the content data is permitted, and

when the usage rule information indicates that copying of the content data is permitted, the processing unit performs recording of the received content data in accordance with a process request signal input in accordance with the notified usage rule information.

14. A user content data processing apparatus according to claim 12, wherein the usage rule information includes information of usage restriction, and

wherein said user content data processing apparatus further comprises a generator for generating a restriction release request signal to request releasing of the usage restriction in processing of the received content data.

15. A user content data processing apparatus according to claim 14, wherein when the processing unit receives a signal for releasing the usage restriction transmitted in response to the restriction release request signal, the processing unit performs processing on the received content data in response to inputting performed via the input unit.

16. A user content data processing apparatus according to claim 15, wherein the usage rule information includes information indicating whether the content data needs fee payment.

25. A user content data processing apparatus according to claim 11, further comprising:

a decrypting unit for decrypting the received content data,

wherein the received content data are data which has been encrypted using the usage rule information.

17. A content data providing method for providing content data with usage rule information for a user content data processing apparatus, the method comprising the steps of:

storing a plurality of content data;

managing the usage rule information corresponding to the content data;

adding the usage rule information to the content data;

transmitting the content data with the usage information for notifying the usage rule information to a user of the user content data processing apparatus;

imposing usage restriction on the content data read from the storage unit, in accordance with the usage rule information; and

authenticating a user of a content data to be transmitted and generating a signal for releasing the usage restriction depending on the authentication result in response to receiving a signal indicating a request for release of usage restriction.

18. A content data providing method according to claim 17, further comprising the step of:

generating the usage rule information.

26. A content data providing method according to claim 17, further comprising the step of:

encrypting the content data read from the stored unit.

19. A content data processing method comprising the steps of:

receiving transmitted content data with usage rule information corresponding to the content data from a content data providing apparatus;

extracting the usage rule information from the content data with the usage rule information;

notifying the extracted usage rule information to a user; and

recording of the received content data in accordance with a process request signal input in accordance with the notified usage rule information when the usage rule information indicates that copying of the content data is permitted, the usage rule information including information indicating whether copying of the content data is permitted.

20. A content data processing method according to claim 19, further comprising the steps of:

inputting in accordance with the usage rule information notified by the display unit; and

processing the received content data in accordance with the input given via the input unit to control recording or reproducing of the received content data in accordance with the usage rule information extracted by the extractor.

21. A content data processing method according to claim 19,

wherein the usage rule information includes information of usage restriction, and

wherein said user content data processing apparatus further comprises a generator for generating a restriction release request signal to request releasing of the usage restriction in processing of the received content data.

22. A content data processing method according to claim 19, wherein processing on the received content data in response to inputting performed via the input unit is performed when the processing unit receives a signal for releasing the usage restriction transmitted in response to the restriction release request signal.

27. A content data processing method according to claim 19, wherein the received content data is data which has been encrypted, and

said content data processing apparatus further comprises a decrypting unit for decrypting the received content data.