Patents Assigned to Nagravision S.A.
  • Patent number: 10185467
    Abstract: Example embodiments provide systems and methods for managing intelligent content queuing from a secondary device for content delivery to a primary device. A content queuing system on the secondary device generates and displays a playlist interface on the secondary device. A selection of a content item to be added to a playlist is received. The content queuing system determines that addition of the content item causes a live content item to overlap with an on-demand content item on the playlist. As a result, the content queuing system creates at least two segments for the on-demand content item. The live content item is positioned between the first and a second segment on the playlist. The first segment is scheduled to end at a start time of the live content item and the second segment is scheduled to begin at an ending time of the live content item.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: January 22, 2019
    Assignee: NAGRAVISION S.A.
    Inventor: David Rhys Edward Jenkins
  • Publication number: 20190014359
    Abstract: A post-processing of video content in order to provide a capability to insert ad content, having a method to produce a modified video content from an original video content. The method comprising: analyzing the original video content to detect at least one marker, said marker comprising a marker surface delimited by a marker identification; loading profile data of a target user; determining, based at least on the profile data a replacement content; adjusting the replacement content into the marker surface; and replacing into the original video content the marker surface by the adjusted replacement content to produce the modified video content.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 10, 2019
    Applicant: NAGRAVISION S.A.
    Inventor: Philippe STRANSKY-HEILKRON
  • Patent number: 10135239
    Abstract: An integrated circuit chip and a method for protecting the integrated circuit chip against physical and/or electrical alterations are disclosed. The chip comprises at least one semiconductor layer including semiconductor components and conductive tracks, at least one layer formed by a first type of conductive tracks extending over all or part of a surface of the chip and at least one second type of conductive track connected to at least one detection circuit configured to detect an alteration of the at least one second type of conductive track. The chip is characterized in that the at least one first type of conductive track is mixed within the at least one second type of conductive track, the material and the layout of at least one second type of conductive track being indiscernible, by an observation device, from the material and the layout of the at least one first type of conductive track.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: November 20, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Pascal Aubry, Stephane Jullian
  • Publication number: 20180330098
    Abstract: A method to verify, by a verification server, an execution integrity of an application in a target device, comprising the steps of sending to the target device a message comprising a challenge and a first function, said first function defining an aggregation method, said challenge defining an aggregation instruction, receiving an attestation from the target device, this attestation being generated by the target device by determining for each block of the application, the corresponding digest for said block, aggregating the digests of the blocks according to the aggregation method of the first function and the challenge to produce the attestation, applying a second function to the attestation by the verification server, said second function undoing the effect of the challenge thus producing an application signature independent of the challenge, and verifying the execution integrity of the application by comparing the produced application signature with a reference signature.
    Type: Application
    Filed: November 17, 2016
    Publication date: November 15, 2018
    Applicant: Nagravision S.A.
    Inventor: Brecht WYSEUR
  • Publication number: 20180332323
    Abstract: A method for watermarking an encrypted digital content stored in a content distribution network (CDN) method comprises the steps of receiving in the CDN, a non-watermarked encrypted content and marking metadata, said non-watermarked encrypted content being the result of an encryption of a non-watermarked clear content by a stream cipher process, said marking metadata indicating locations in the content suitable for a modification of said content; using a watermark formed of watermark values and corresponding to a unique identifier; and producing a watermarked encrypted content by combining in the CDN, with a combination function, the values forming the watermark with the non-watermarked encrypted content in locations indicated by the marking metadata.
    Type: Application
    Filed: November 10, 2016
    Publication date: November 15, 2018
    Applicant: NAGRAVISION S.A.
    Inventors: Jean-Bernard FISCHER, Brecht WYSEUR
  • Patent number: 10122767
    Abstract: System and method for establish secure conference calls. In one example system, a central conference call server establishes point-to-point connections with accessory devices comprising a secure element and connected to corresponding participant devices. The conference call server includes an interface to a plurality of secure elements configured to perform scrambling and unscrambling of media signals communicated to and from the accessory devices. In another example, one of the participant devices operates as the central conference call server. In other examples, participant devices communicate on a conference call via point-to-point connections between all accessory devices connected to the participant devices. The accessory devices include secure elements for decryption and encryption of media signals communicated between the accessory devices.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: November 6, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Francois Fer, Marco Macchetti, Laurent Gauteron, Jerome Perrine
  • Patent number: 10091537
    Abstract: A method of managing the processing of a digital broadcast transport stream by a multimedia unit identified by a personal identifier. The multimedia unit being connectable to a security module associated to the multimedia unit and/or a server through an IP-connection with a return path. The transport stream comprising scrambled content packets and conditional access messages that are necessary for descrambling the content packets. The method comprises: sending the conditional access messages from the multimedia unit to either the server or the security module; verifying the authentication of the multimedia unit and/or the validity of access rights allocated to the multimedia unit; if the authentication fails, preventing any further processing of the conditional access message; securely obtaining, at the multimedia unit, the control data corresponding to the conditional access messages; and descrambling the audio/video/data content packets using the control data at the multimedia unit.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: October 2, 2018
    Assignee: Nagravision S.A.
    Inventor: Bertrand Wendling
  • Patent number: 10083429
    Abstract: Methods and systems of paying for content, such as, for example, audio and/or video content, are presented. In an example method, a task to be executed using at least one device resource associated with a user device is provided. Also, the task is to be executed during streaming of a content item. The streaming of the content item to the user device is caused to terminate in response to a determination that the execution of the task using the at least one device resource has been terminated.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: September 25, 2018
    Assignee: NAGRAVISION S.A.
    Inventor: Christian Schwarz
  • Patent number: 10073965
    Abstract: Disclosed herein are methods and systems for validating an autonomous system that comprises a static-code module and a dynamic-code module, the method including the steps of performing a code-integrity-validation process on the static-code module and performing a behavior-integrity-validation process on the dynamic-code module. In some embodiments, performing the code-integrity-validation process on the static-code module includes performing a signature-verification process on the static-code module. In some embodiments, performing the behavior-integrity-validation process on the dynamic-code module includes using an encrypted-and-signed test vector.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 11, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Scott Jantz, Steven Seltzer
  • Patent number: 10075770
    Abstract: Method for securing control words within a decoder in charge of descrambling digital content protected by these control words, comprising the following steps: for each descrambling unit of this decoder, loading in a directory a pairing key referenced by an identifier associating said key to a descrambling unit; receiving at least one encrypted control word referenced by an indication allowing to identify the descrambling unit for which it is intended; decrypting the control word by using a first key shared with a security module; identifying in the directory the pairing key whose identifier corresponds to the indication of destination associated to the control word; encrypting this control word by using this pairing key; and storing in a register the control word in a chronological and referenced way.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: September 11, 2018
    Assignee: Nagravision S.A.
    Inventors: Marco Macchetti, Jerome Perrine, Patrick Servet, Didier Hunacek
  • Patent number: 10074991
    Abstract: A method is disclosed for controlling the operating of a consumption appliance by way of a selector switch controlled by an energy saving device connected to a management center. The consumption appliance is kept in its default power mode, until receiving, by the energy saving device, an authentic secured control message sent by the management center. This message includes a command onto the mode in which the consumption appliance has to be switched. A counter is initialized with an initialization value before to be triggered. The consumption appliance is switched in the mode indicated by the command, either until the counter has reached a threshold value, or until receiving another authentic control message. If the counter has reached the threshold value, then the consumption appliance is switched in its default power mode. If another authentic secured control message has been received, then returning to the step of initializing the counter.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 11, 2018
    Assignee: NAGRAVISION S.A.
    Inventor: Antoine Burckard
  • Patent number: 10075419
    Abstract: A method to protect a media content encrypted by a media content key, said method being carried out by a security module embedded into a reception device and connected to a consumption device, comprising: receiving an encrypted media content, encrypted by a media content key; receiving a message, being encrypted by a personal key of the security module, containing the media content key; decrypting the message by the personal key to retrieve the media content key; decrypting the encrypted media content by the media content key; generating a current local key; encrypting a portion of the media content by the current local key, said portion defining a chunk; transmitting the current local key to the consumption device; transmitting the encrypted chunk to the consumption device; repeating the previous four steps for different chunks of the media content and modifying the current local key for the different chunks.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: September 11, 2018
    Assignee: NAGRAVISION S.A.
    Inventor: Jean-Bernard Fischer
  • Publication number: 20180255334
    Abstract: The present invention provides a security module having a communication interface being capable of operating according to any from a selection from a plurality of predetermined operation modes or communication protocols. The security module further comprises a voltage detector to detect the voltage on the module's power supply connection. Depending on the value of the detected voltage or to which of a plurality of predetermined voltage ranges the detected voltage may be categorized, the security module is made to function according to one from the plurality of predetermined communication protocols.
    Type: Application
    Filed: April 30, 2018
    Publication date: September 6, 2018
    Applicant: NAGRAVISION S.A.
    Inventors: Chris CURREN, Olivier BRIQUE
  • Patent number: 10070189
    Abstract: A physical device, the possession of which may provide access to digital media content in a fashion similar to the possession of a DVD providing access to the media content stored thereupon on a suitable DVD player. The possession of the physical device grants access to digital content stored on a remote server using a suitable device such as e.g., a set-top box or media player having Internet connectivity. The physical device provides for convenient and possibly anonymous access to content stored on a remote server and has certain advantages over known techniques for storing rights to access the content.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 4, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Bertrand Wendling, Henri Kudelski, Pierre Sarda, Alain Delpuch
  • Publication number: 20180249198
    Abstract: A method to transfer a video stream from a host device comprising a controller configured for bulk transfers to a descrambling device, comprises: forming a chain out transfer comprising a chain out header linked with multiple chain out descriptors, the first chain out descriptor pointing to an out description packet containing at least one producer ID, the second and subsequent chain out descriptor pointing to chunks from the video stream, the last chain out descriptor being configured to generate an interrupt; forming a chain in transfer comprising a chain in header linked with a plurality of chain in descriptors, each chain in descriptor pointing to a descrambled chunk; requesting the controller to process the chain; receiving the description packet by the descrambling device and using key data associated with the chunks to descramble them; receiving by the controller the descrambled chunks and triggering an interrupt on the last chunk.
    Type: Application
    Filed: August 29, 2016
    Publication date: August 30, 2018
    Applicant: NAGRAVISION S.A.
    Inventor: Fabien GREMAUD
  • Patent number: 10063283
    Abstract: The present invention describes a method to select an application on a first device having an NFC interface and comprising a plurality of applications using the NFC interface, said method comprising the steps of detecting a second device having a NFC interface via the NFC interface of the first device, obtaining via the NFC interface a message comprising a message type and a service identification, determining an application type based on the message type and the service identification, selecting at least one application among the plurality of applications matching the message type and the service identification, prompting a user of the first device to accept a communication between the second device and the selected application, in case of positive answer, notifying the selected application of the message type, establishing the communication between the selected application and the second device via the NFC interface.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 28, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Pierre Sarda, Frederic Thomas
  • Patent number: 10064290
    Abstract: The invention relates to an external connector for the production of an electronic card comprising an insulating support that defines an outside face and an inside face opposite one another and a plurality of external metal contact pads. This external connector additionally comprises a plurality of metal projections located on the side of the inside face of the insulating support and respectively connected electrically to at least one subassembly of the plurality of external metal contact pads and/or to contact pads linked to an electronic unit, which is arranged on the inside face of the insulating support, wherein these metal projections are intended to be inserted into individual cavities of the body of the electronic card, and metal contact pads linked to an electronic unit inside the card body and/or an antenna incorporated in this card body are located at the base of these cavities.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 28, 2018
    Assignee: Nagravision S.A.
    Inventor: Francois Droz
  • Patent number: 10050967
    Abstract: A user's access to software applications installed on a device is limited by evaluating the context in which the user requests access to the application and determining, based on the context analysis, whether or not the user is to be given access to the application. When it is determined that the user requesting access is not a primary authorized user, the primary authorized user may be notified of the attempt to access the application.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: August 14, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Olivier Brique, Salvatore Bocchetti
  • Patent number: 10043023
    Abstract: This invention aims to propose a method and a system allowing to supply certified reliable information without the source of the information being transmitted to the applicant.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: August 7, 2018
    Assignee: Nagravision S.A.
    Inventor: Salvatore Bocchetti
  • Patent number: 10032435
    Abstract: Methods and systems of generating an image gradient are presented. In one example, image data for generating a two-dimensional digital image is provided to a hardware graphics processor. The image data may include a single pixel along a first direction of the digital image and multiple pixels along a second direction of the digital image. The pixels along the second direction of the digital image may include an image gradient. A one-dimensional stretching operation of the hardware graphics processor is initiated based on the image data to generate the digital image. In response to the stretching operation, the digital image may include multiple pixels along the first direction for each of the single pixels, wherein each of the multiple pixels along the first direction for a corresponding pixel of the single pixels comprises the corresponding pixel.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: July 24, 2018
    Assignee: Nagravision S.A.
    Inventors: Patrick Newcombe, Douglas Brunel Gore