METHOD FOR DISPLAYING MULTIMEDIA CONTENT WITH VARIABLE INTERFERENCE BASED ON RECEIVER/DECODER LOCAL LEGISLATION

• US 20100332343A1
• Filed: 02/27/2009
• Published: 12/30/2010
• Est. Priority Date: 02/29/2008
• Status: Abandoned Application

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Onno, Stephane
• Application Number:
  US12/735,908
• Publication Number:
  US 20100332343A1
• Time in Patent Office: Days
• US Class Current: 705/26.1
• CPC Class Codes: G06Q 30/0601 Electronic shopping [e-shopping]
• CPC Class Codes: H04N 21/23476 by partially encrypting, e.g. encrypting the ending portion of a movie
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/4318 by altering the content in the rendering process, e.g. blanking, blurring or masking an image region image enhancement or restoration in general G06T5/00
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/44055 by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
• CPC Class Codes: H04N 21/4623 Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message] arrangements for conditional access to broadcast information or to broadcast-related services H04H60/14
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/835 Generation of protective data, e.g. certificates protecting software against unauthorised usage in a vending or licensing environment G06F21/10
• CPC Class Codes: H04N 7/164 Coin-freed apparatus
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A multimedia content receiver/decoder that receives data representing the multimedia content as well as disturbance data associated with the content is disclosed. It processes the data representing the content based on the associated disturbance data locally stored in the receiver/decoder then it transmits to the display means the multimedia content for displaying with a disturbance defined by the disturbance data according to a disturbance level depending on local disturbance rights.

Claims

1. A method for displaying multimedia content comprising the following steps for:

receiving in a receiver/decoder data representing the multimedia content as well as disturbance data associated with the content,

processing the data representing the content according to associated disturbance data and according to disturbance rights stored locally in the receiver/decoder, and

displaying the multimedia content with a disturbance defined by the disturbance data according to a level of disturbance among a plurality of disturbance level, the disturbance level depending on local disturbance rights.

2. The method according to claim 1, wherein it comprises the preliminary steps of

receiving by the receiver/decoder of disturbance rights management messages and of

storing and/or updating of local disturbance rights in the receiver/decoder according to information contained in the disturbance rights management messages.

3. The method according to claim 1, wherein it also comprises steps of:

receiving of a user command to reduce the disturbance level in the displaying of the multimedia content,

updating of local disturbance rights by decrementing a number of tokens pre-stored in the receiver/decoder, the number of tokens being determined by the command of the user, and

modifying the display of the multimedia content according to a new level of disturbance depending on the updated local disturbance rights.

4. The method according to claim 2 wherein it also comprises steps of:

receiving of a user command to reduce the level of disturbance in the displaying of the multimedia content,

transmitting of a request for updating the local disturbance rights through the purchasing of tokens from a remote server comprising a management module,

receiving via the receiver/decoder of a disturbance rights management message containing a local disturbance rights update upon the purchase of tokens that can be carried out via the remote server,

updating of local disturbance rights in the receiver/decoder according to information contained in the disturbance rights management messages, and

modifying the display of the multimedia content according to a new level of disturbance depending on the updated local disturbance rights.

5. The method according to claim 1 wherein disturbance integrity data are received in the receiver/decoder with data representing the multimedia content and disturbance data associated with the content,

and in that the method also comprises steps for:

verifying the integrity of disturbance data received using disturbance integrity data prior to the displaying of multimedia content, and

in the case where the step of verification of the integrity reveals that the disturbance data are not correct, displaying the multimedia content with a predefined maximum disturbance level,

in the case where the step of verification of the integrity reveals that the disturbance data are correct, displaying the multimedia content with the disturbance level depending on the local disturbance rights of the receiver/decoder.

6. The method according to claim 1 wherein during the step of reception of data representing the multimedia content by the receiver/decoder, data is received in encrypted form, said step further comprising the reception via the receiver/decoder of access rights control data and wherein

prior to the step of processing of data representing the multimedia content in the receiver/decoder, the method further comprises a step consisting in decrypting the data representing the multimedia content using the encryption key obtained from access rights control data if the receiver/decoder has a right to access to the content.

7. The method according to claim 6, wherein the disturbance integrity data and the access rights control data are received by the decoder/receiver in protected messages, preferably via encryption.

8. The method according to claim 1 wherein the disturbance data contains a disturbance content intended to mask at least in part the multimedia content or alteration data of the multimedia content intended to modify the display of the multimedia content during its display.

9. The method according to claim 8, wherein the disturbance data can contain several different publicity contents associated with different user profiles, and in that the method further comprises a step consisting in determining in the receiver/decoder the publicity content to be inserted, in the form of disturbance, during the displaying of the multimedia content.

10. The method according to claim 1, wherein, prior to the step of displaying the multimedia content with a disturbance defined by the disturbance data according to a level of disturbance among a plurality of disturbance levels, the disturbance level depending on local disturbance rights, the method comprises a step of displaying the multimedia content without any disturbance during a predefined period.

11. A receiver/decoder of multimedia content comprising:

communication means equipped to receive from a communication network data representing the multimedia content as well as disturbance data associated with the content and

decoding means equipped to process said data representing the content according to associated disturbance data and according to disturbance rights stored locally in the receiver/decoder and to provide to the viewing means the multimedia content with a disturbance defined by the disturbance data according to a level of disturbance among a plurality of disturbance levels, the disturbance level depending on the local disturbance rights.

12. A device for providing multimedia content intended to be transmitted to receiver/decoders connected to a communication network, comprising means for generation of disturbance data associated with the content intended to be used by said receiver/decoders to process the data representing the content according to the disturbance rights stored locally in the receiver/decoders to display the multimedia content with a disturbance defined by the disturbance data according to a disturbance level among a plurality of disturbance levels, the disturbance level depending on the local disturbance rights.