Content item recorder and method of recording therefor

• US 20070098362A1
• Filed: 05/13/2004
• Published: 05/03/2007
• Est. Priority Date: 05/20/2003
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Sharma, Pankaj
• Application Number:
  US10/557,374
• Publication Number:
  US 20070098362A1
• Time in Patent Office: Days
• US Class Current: 386/257
• 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 20/00159 Parental control systems
• CPC Class Codes: G11B 20/00166 involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
• CPC Class Codes: G11B 20/00695 said measures preventing that data are read from the recording medium
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/032 on tapes G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/107 of operating tapes
• CPC Class Codes: G11B 27/328 on a tape [TTOC]
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

The invention relates to a content item recorder such as a DVD recorder. The recorder comprises a user input (111) for receiving protection information from an end user. A section processor (113) divides the content item into sections in response to the protection information, and an access characteristic processor (115) determines an access characteristic for each section. The content item and access information is stored on a recordable medium (119) by a recording processor (117). For example, a restricted access playlist comprising all sections is stored together with an unrestricted access playlist not comprising protected sections. At playback, an access permission level is determined by an access level processor (125) from an access user input (123). A presentation signal is generated by a presentation processor (127) in accordance with the access permission level. If an unlimited access permission level is set, the restricted access playlist is used, and otherwise the unrestricted access playlist is used. Accordingly, flexible parental control is provided.

Claims

1. A content item recorder (101) comprising:

means (109) for receiving a content item for recording;

a user input (111) for receiving protection information from an end user;

means (113) for dividing the content item into a plurality of sections in response to the protection information;

means (115) for determining an access characteristic for each of the plurality of sections in response to the protection information;

means (117) for storing the content item and access information comprising the access characteristic for each of the plurality of sections on a recordable medium (119).

2. A content item recorder (101) as claimed in claim 1 wherein the means (115) for determining an access characteristic further comprises:

means for determining at least a first protected section of the plurality of sections in response to the protection information;

means for generating a restricted access playback sequence indication comprising the first protected section;

means for generating an unrestricted access playback sequence indication not comprising the first protected section; and

means for including the restricted access and unrestricted access playback sequences in the access information.

3. A content item recorder (101) as claimed in claim 2 wherein the restricted access playback sequence indication or the unrestricted access playback sequence indication comprises an ordered playback sequence of at least some of the plurality of sections.

4. A content item recorder (101) as claimed in claim 2 wherein the restricted access playback sequence indication comprises an ordered playback sequence of the plurality of sections and the unrestricted access playback sequence indication comprises an ordered playback sequence of a subset of the plurality of sections.

5. A content item recorder (101) as claimed in claim 4 further comprising playback means (107) for generating a presentation signal from the content item stored on the recordable medium (119), the playback means (107) comprising means (123) for receiving an access input from a playback user;

means (125) for setting an access permission level in response to the access input;

means (121) for retrieving the content item and the access information from the recordable medium (119); and

means (127) for generating a presentation signal for-the content item in response to the access permission level and the access information.

6. A content item recorder (101) as claimed in claim 5 wherein the means (127) for generating a presentation signal is operable to generate the presentation signal only from sections of the plurality of sections for which the access characteristic indicates that access is permitted for the access permission level.

7. A content item recorder (101) as claimed in claim 5 wherein the access information comprises a restricted access playback sequence indication comprising a first protected section and an unrestricted access playback sequence indication not comprising the first protected section, and the means (127) for generating a presentation signal is operable to generate the presentation signal from the restricted access playback sequence indication if the access permission level corresponds to a unlimited access permission level, and for generating the presentation signal for the content item in response to the unrestricted access playback sequence indication if the access permission level corresponds to limited access permission level.

8. A content item recorder (101) as claimed in claim 1 further wherein the means (117) for storing is operable to record a plurality of content items and a protection indication for each of the plurality of content items;

wherein the protection indication for a content item indicates if the content item is protected.

9. A content item recorder (101) as claimed in claim 1 further comprising means for recording on the recordable medium an access code associated with the access information.

10. A content item recorder (101) as claimed in claim 1 further comprising means for receiving the content item from a content provider.

12. A content item recorder (101) as claimed in claim 1 wherein the recordable medium is a recordable Digital Video Disc (DVD).

13. A content item recorder (101) as claimed in claim 1 wherein the recordable DVD is in accordance with the DVD +ReWritable video format specifications.

14. A content item recorder (101) as claimed in claim 1 wherein the content item is an audiovisual content item.

11. A content item recorder (101) as claimed in claim 11 wherein the content provider is a broadcast content provider.

15. A content item player for generating a presentation signal from a recordable medium comprising a content item dividing into a plurality of sections and access information comprising an access characteristic for each of the plurality of sections;

the playback means comprising

means (123) for receiving an access input from a playback user;

means (125) for setting an access permission level in response to the access input;

means (121) for retrieving the content item and the access information from the recordable medium (119); and

means (127) for generating a presentation signal for the content item in response to the access permission level and the access information.

16. A content item player as claimed in claim 15 wherein the access information comprises a restricted playback sequence indication comprising a first protected section and an unrestricted playback sequence indication not comprising the first protected section and the means for generating a presentation signal is operable to generate the presentation signal from the restricted playback sequence indication if the access permission level corresponds to an unlimited access permission level and for generating the presentation signal for the content item in response to the unrestricted playback sequence indication if the access permission level corresponds to a limited access permission level.

17. A method of recording a content item on a recordable medium, the method comprising the steps of:

receiving (201) a content item for recording;

receiving (203) protection information from an end user;

dividing (205) the content item into a plurality of sections in response to the protection information;

determining (207) an access characteristic for each of the plurality of sections in response to the protection information;

storing (209) the content item and access information comprising the access characteristic for each of the plurality of sections on a recordable medium.

18. A method of recording a content item on a recordable medium as claimed in claim 17, further comprising the steps of:

determining at least a first protected section of the plurality of sections in response to the protection information;

generating a restricted playback sequence indication comprising the first protected section;

generating an unrestricted playback sequence indication not comprising the first protected section; and

including the restricted and unrestricted playback sequence in the access information.

19. A method of recording a content item on a recordable medium as claimed in claim 17, further comprising the steps of:

receiving (301) an access input from a playback user;

setting (303) an access permission level in response to the access input;

retrieving (305) the content item and the access information from the recordable medium; and

generating (307) a presentation signal for the content item in response to the access permission level and the access information.

20. A computer program enabling the carrying out of a method according to claim 19.

21. (canceled)