Reproducing apparatus, reproducing method, and content reproducing system

• US 20070031116A1
• Filed: 07/21/2006
• Published: 02/08/2007
• Est. Priority Date: 08/02/2005
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takatsuka, Susumu, Kinouchi, Takashi, Sakata, Junichiro, Tsukazaki, Hideo
• Application Number:
  US11/491,377
• Publication Number:
  US 20070031116A1
• Time in Patent Office: Days
• US Class Current: 386/259
• 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]
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00528 wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
• CPC Class Codes: G11B 20/0084 wherein the usage restriction can be expressed as a specific time or date
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D

Abstract

A reproducing apparatus is disclosed. The reproducing apparatus has a recording section, a reproducing section, a time information generating section, and a controlling section. The recording section records content data. The reproducing section reproduces the content data. The time information generating section generates time information. The controlling section checks whether the recording section records content data whose expiration date will come soon on the basis of the time information generated by the time information generating section when the reproducing apparatus gets started. When the recording section records content data whose expiration date will come soon, the controlling section notifies a user of the content data whose expiration date will come soon.

Claims

1. A reproducing apparatus, comprising:

a recording section which records content data;

a reproducing section which reproduces the content data;

a time information generating section which generates time information; and

a controlling section which checks whether the recording section records content data whose expiration date will come soon based on the time information generated by the time information generating section when the reproducing apparatus gets started,

wherein when the recording section records content data whose expiration date will come soon, the controlling section notifies a user of the content data whose expiration date will come soon.

2. The reproducing apparatus as set forth in claim 1,

wherein the controlling section notifies the user of a time period until the expiration date of the content data comes when the reproducing apparatus gets started.

3. The reproducing apparatus as set forth in claim 1,

wherein the controlling section notifies the user that the content data whose expiration date will come soon based on the time information generated by the time information generating section only when the reproducing apparatus gets started a first time every day.

4. The reproducing apparatus as set forth in claim 3,

wherein the controlling section notifies the user that the content data whose expiration date will come soon every several days.

5. The reproducing apparatus as set forth in claim 1,

wherein when the reproducing apparatus gets started and the user confirms that the content data whose expiration date has come, the controlling section does not notify him or her of the content data whose expiration date has come.

6. The reproducing apparatus as set forth in claim 1,

wherein the controlling section checks whether an expiration date of content data to be reproduced has come based on the time information generated by the time information generating section, and

wherein when the expiration date of the content data has come, the controlling section selects content data from a list of content and reproduces the selected content data.

7. The reproducing apparatus as set forth in claim 1,

wherein the controlling section checks whether the recording section records content data whose expiration date will come soon based on license information which is recorded in the recording section corresponding to the content data.

8. The reproducing apparatus as set forth in claim 1,

wherein the controlling section also updates the expiration date of the content data when the expiration date will come soon.

9. The reproducing apparatus as set forth in claim 1, further comprising:

a communication section which transmits and receives data to and from an external device,

wherein when the reproducing apparatus is present in an area of which the communicating section can communicate with the external device, the controlling section updates the expiration date of the content data.

10. The reproducing apparatus as set forth in claim 1,

wherein after an expiration date of a license of content data had come, if the license was not updated for a predetermined time period, the controlling section deletes the content data from the recording section.

11. A reproducing method for reproducing content data, comprising the steps of:

generating time information;

checking whether a recording apparatus has content data whose expiration date will come soon based on the time information when the reproducing apparatus gets started; and

notifying a user of the content data whose expiration date will come soon when the reproducing apparatus has content data whose expiration date will come soon.

12. The reproducing method as set forth in claim 11,

wherein the notifying step is performed by notifying the user of a time period until the expiration date comes when the reproducing apparatus has content data whose expiration date will come soon.

13. The reproducing method as set forth in claim 11,

wherein the notifying step is performed by notifying the user that the content data whose expiration date will come soon based on the generated time information only when the reproducing apparatus gets started a first time every day.

14. The reproducing method as set forth in claim 13,

wherein the notifying step is performed by notifying the user that the content data whose expiration date will come soon every several days.

15. The reproducing method as set forth in claim 11,

wherein when the reproducing apparatus gets started and the user confirms that the content data whose expiration date has come, the notifying step is not performed.

16. The reproducing method as set forth in claim 11,

wherein the checking step is performed by checking whether an expiration date of content data to be reproduced has come based on the generated time information, and

wherein when the expiration date of the content data has come, the reproducing method further comprising the steps of:

selecting content data from a list of content; and

reproducing the selected content data.

17. The reproducing method as set forth in claim 11, wherein the checking step is performed by checking whether the reproducing apparatus has content data whose expiration date will come soon based on license information which the reproducing apparatus has corresponding to the content data.

18. The reproducing method as set forth in claim 11, further comprising the step of:

updating the expiration date of the content data when the expiration date will come soon.

19. The reproducing method as set forth in claim 11, further comprising the steps of:

transmitting and receiving data to and from an external device;

updating the expiration date of the content data when the reproducing apparatus is present in an area of which the reproducing apparatus can communicate with the external device.

20. The reproducing method as set forth in claim 11, further comprising the step of:

deleting the content data from the reproducing apparatus after an expiration date of a license of content data had come if the license was not updated for a predetermined time period.

21. A system having a reproducing apparatus and an external device,

wherein the reproducing apparatus comprises:

a recording section which records content data;

a reproducing section which reproduces the content data;

a time information generating section which generates time information; and

a controlling section which checks whether the recording section records content data whose expiration date will come soon based on the time information generated by the time information generating section when the reproducing apparatus gets started,

wherein when the recording section records content data whose expiration date will come soon, the controlling section notifies a user of the content data whose expiration date will come soon fold transmits license information of content data whose expiration date will come soon to the external device, and

wherein the external device comprises;

a communication section which communicates with the reproducing apparatus;

a managing section which manages license related information; and

an updating section which updates license information transmitted from the external device based on the license information transmitted from the reproducing apparatus and the license related information managed by the managing section.