Patents Assigned to Nagravision S.A.
  • Patent number: 11397829
    Abstract: The present invention aims to improve data protection against illegal access by a strong differentiation of the security level specific on a type of data so that when the protection on a part of the data is violated, the remaining data are still inaccessible. A method for controlling access, via an open communication network, to user private data, comprising steps of: dividing the user private data into a plurality of categories, each category defining a privacy level of the data, encrypting the user private data of each category with a category key pertaining to the category of the data, attributing to a stakeholder an entity configured for accessing to at least one category of user private data, and authorizing the access to the at least one category of user private data for the entity of the stakeholder, by providing the stakeholder with the category keys required for decrypting the user private data of the corresponding category.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: July 26, 2022
    Assignee: Nagravision S.A.
    Inventor: Antoine Burckard
  • Publication number: 20220212845
    Abstract: A device for securing a bottle's cap includes a first part; a second part mechanically connected to the first part through a mechanical connection; and a securing component including a radio frequency transponder, a first portion of the component being implemented in the first part of the device, a second portion of the component being implemented in the second part of the device, at least one portion of the component extending through the mechanical connection. The second part includes a device for fixing the device to a cap of a bottle.
    Type: Application
    Filed: January 5, 2022
    Publication date: July 7, 2022
    Applicant: NAGRAVISION S.A.
    Inventor: Bertrand WENDLING
  • Patent number: 11374933
    Abstract: A method for securing transmission of digital data in a communication network comprising a central station or a terminal and at least one device monitored by the central station via the communication network. The at least one device is configured to produce and to transmit a digital data stream to the central station or terminal. The at least one device further comprises a secure non-volatile memory for storing at least device specific information. The at least one device forms a data block based on at least the device specific information stored in the secure memory. The data block thus formed may compose additional data to be merged with the digital data stream produced by the at least one device. A modified digital data stream results from this merging operation and is transmitted by the at least one device to the central station or terminal.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 28, 2022
    Assignee: Nagravision S.A.
    Inventors: Pierre Sarda, Didier Hunacek, John Tinsman, Philippe Stransky-Heilkron
  • Patent number: 11366936
    Abstract: A method of programming a device comprising acquiring configuration data, loading the configuration data onto a programmable device, processing at least a portion of the configuration data through a one way function to form processed configuration data, and configuring at least one configurable module of the programmable device using the processed configuration data from the processing step.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 21, 2022
    Assignee: NAGRAVISION S.A.
    Inventors: Andre Kudelski, Nicolas Fischer, Jerome Perrine
  • Patent number: 11368738
    Abstract: The disclosure generally relates to a method for accessing media content, said method being used in a receiver (10). The method comprises a preparation phase and a use phase. The preparation phase comprises the steps of obtaining, by said receiver (10), a catalog of media content items, each media content item corresponding to a media content and comprising at least an item description and an item identification data and storing said catalog of media content items in a local database in a memory (13) of the receiver (10).
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 21, 2022
    Assignee: NAGRAVISION S.A.
    Inventor: Jean-Bernard Fischer
  • Patent number: 11359933
    Abstract: A method for managing communications within a network comprising utility meters, each associated and connected to at least one utility management center through at least one intermediate data concentrator. A message is sent by a utility meter to the destination data concentrator. This message includes metering data measurement reported by said utility meter, its utility meter identifier, the destination data concentrator identifier and the management center identifier. Then, on the basis of several metering data measurements, a metering counter differential consumption value is calculated by difference of two metering counter consumption indexes measured by the utility meter within a time period interval. Then, a report containing at least the metering counter differential consumption value is sent from the destination data concentrator towards the utility management center to which said utility meter is associated.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: June 14, 2022
    Assignee: NAGRAVISION S.A.
    Inventors: Joel Wenger, Corinne Le Buhan
  • Patent number: 11363351
    Abstract: The disclosure provides a method of making watermarking data embedded in an Elementary Stream ES accessible to a receiver. The ES comprises video and/or audio data and is to be transmitted as a Packetized Elementary Stream PES in a Transport Stream TS such that the receiver can use the watermarking data to watermark the video and/or audio data in the ES without reconstructing the ES from the TS. The watermarking data identifies one or more watermarking locations in the video and/or audio data in the ES to be modified by the receiver in accordance with the watermarking data. The method comprises determining respective one or more watermarking TS locations in the TS corresponding to the one or more watermarking locations. The method further comprises embedding, in the ES, the watermarking data including watermarking location information identifying the one or more watermarking TS locations, or modifying watermarking data embedded in the ES by adding the watermarking location information.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: June 14, 2022
    Assignee: NAGRAVISION S.A.
    Inventor: Didier Hunacek
  • Publication number: 20220182430
    Abstract: Systems and techniques are described herein for processing media content. For example, a process can include obtaining a first media frame and a second media frame. The process can include generating, using a first change detector, a first tag indicating a change above a first change threshold has occurred in the second media frame relative to the first media frame. The process can further include generating, using a machine learning model, a second tag indicating that media content of the second media frame is associated with a particular type of media content. The process can further include determining, based the first tag and the second tag, that the media content of the second media frame is associated with the particular type of media content.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 9, 2022
    Applicant: NAGRAVISION S.A.
    Inventors: Jonathan Bennett-James, Bineet Kumar Singh, Nishant Kumar
  • Publication number: 20220174366
    Abstract: The present disclosure relates to a method and system for presenting a set of control functions via an interface of a peripheral control device (PCD). A control function can include a command associated with one or more media contexts of a host media device. The method decodes a payload, from the host media device, with an encoded context identifier, where the context identifier indicates a primary media context active on the host media device. The method determines one or more control functions corresponding to the context identifier, and changes the set of control functions on the interface of the PCD to include the one or more control functions that can command the primary media context.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 2, 2022
    Applicant: NAGRAVISION S.A.
    Inventors: Amudha Kaliamoorthi, Prabhu Chawandi, Karthikeyan Srinivasan, Jihyun Park, Jun Seo Lee
  • Patent number: 11343262
    Abstract: A method of scanning a plurality of ports at one or more target IP addresses is disclosed. Each of the plurality of ports corresponds to a port number at one of the one or more target IP addresses, for example an IPv4 or IPv6 address. The method comprises assigning each port to one of a plurality of sets of ports and executing a plurality of port scanning processes at the same time on a common source machine (virtual or physical). Each port scanning process sends port probe requests to the ports of a respective set of the plurality of sets from a different respective source IP addresses. Thus, a different respective source IP address is associated with each set of the plurality of sets of ports, different from the source IP addresses associated with the remaining sets, and each set of target IP addresses receives probe requests from a different respective source IP address. The sets may be aligned with target addresses or may spread several target addresses or only part of the ports of a target address.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: May 24, 2022
    Assignee: Nagravision S.A.
    Inventors: Antoine Junod, Pablo Palomero, Adrien Giner
  • Publication number: 20220159088
    Abstract: An embodiment of the present invention may be deployed in a system comprising a media player and a remote server operably connected to communicate with one another. The invention allows for a settings file to be stored on the remote server, the settings file comprising parameters useful for adjusting different settings on the media player such that rendering of a particular content to be made possible on the media player according to a user's predetermined taste by downloading the settings from the server onto the media player.
    Type: Application
    Filed: November 19, 2021
    Publication date: May 19, 2022
    Applicant: NAGRAVISION S.A.
    Inventors: Aditee Anil PATHAK, Philippe STRANSKY, Gyanveer SINGH
  • Patent number: 11336448
    Abstract: A system and a method for protecting code are provided. Extraction of code to be protected takes place during an object-to-object transformation and that code is replaced with fake binary code. The extracted code to be protected may then be encrypted or otherwise obscured and stored in a separate region of an object file. A prior source-to-source file transformation can be provided to isolate and mark the code to be protected, and to inject additional source code to handle later decryption.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: May 17, 2022
    Assignee: NAGRAVISION S.A.
    Inventors: Laurent Dore, Eric Piret, Yasser Belaidi, Brecht Wyseur
  • Publication number: 20220150565
    Abstract: A method for identifying a peripheral device from a digital content having been received by said peripheral device from a master device located at a user end is described. The master device can be connected to a server located at a back end, and the method includes receiving, by the master device from the peripheral device, at least peripheral identification data. The method also includes generating, at the master device, a first mark as a function of at least a part of the peripheral identification data, and watermarking the digital content using the first mark before transmitting the digital content to the peripheral device.
    Type: Application
    Filed: August 9, 2021
    Publication date: May 12, 2022
    Applicant: NAGRAVISION S.A.
    Inventors: Philippe STRANSKY-HEILKRON, Frederic THOMAS
  • Publication number: 20220141294
    Abstract: In order to allow an access to the Internet, and therefore to a remote server, for a device having no connection with an Internet gateway, there is proposed a method to transmit a message from a first device to a remote server, the first device having no connection with the remote server, said method comprising: detecting a second device by the first device, establishing a communication channel between the first and the second device, transferring the message from the first to the second device, said message comprising an address of the remote server, transferring, by the second device, the message to the remote server using the remote server address contained in the message.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Applicant: NAGRAVISION S.A.
    Inventor: Andre KUDELSKI
  • Patent number: 11321323
    Abstract: A system and method for searching for a specific datum among data stored in a permanent memory of a user unit linked to a central authority, comprising: receiving in the user unit, a processing key derived, in said central authority, using a key derivation function applied on a secret piece of information, said key derivation function being a first iterative one-way function; storing said processing key in a temporary memory of the user unit; receiving from said central authority the specific datum converted by a second one-way function using said processing key; in the user unit, converting at least a part of the data stored in the permanent memory using said second one-way function and said processing key; comparing said converted specific datum received from the central authority with the converted data from the permanent memory, thereby providing a search result; and deleting said processing key from the temporary memory.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Nagravision S.A.
    Inventor: Jean-Philippe Aumasson
  • Publication number: 20220132179
    Abstract: Systems and techniques are described herein for annotating media content. For example, a process can include obtaining media content and generate, use one or more machine learning models, a metadata file for at least a portion of the media content. The metadata file includes one or more metadata descriptions. The process can include generating a text description of the media content based on the one or more metadata descriptions of the metadata file. The process can include annotating the media content use the text description.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 28, 2022
    Applicant: NAGRAVISION S.A.
    Inventors: Jonathan Bennett-James, Craig Holbrook
  • Patent number: 11314518
    Abstract: A method of monitoring execution in an execution environment of an operation, for example a cryptographic operation, comprising a sequence of instructions, is disclosed. Instructions sent in the sequence from a main processor to one or more auxiliary processors, for example cryptographic processors, to execute the operation are monitored and the sequence of instructions is verified using verification information. The method comprises enabling output from the execution environment of a result of the operation in response to a successful verification of the sequence, or generating a verification failure signal in response to a failed verification of the sequence.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 26, 2022
    Assignee: Nagravision S.A.
    Inventors: Marco Macchetti, Nicolas Fischer, Jerome Perrine
  • Patent number: 11310061
    Abstract: Methods and content consumption devices are disclosed that enable a revocation list to be securely enforced and managed, in terms of enforcing version control and providing granular control of individual capabilities, for example. Aspects also relate to enhanced enforcement control of content consumption control information more generally, for example by enforcing version control of activation messages, and/or granular management of individual capabilities.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 19, 2022
    Assignee: Nagravision S.A.
    Inventors: Jean-Bernard Fischer, Patrick Servet, Didier Hunacek
  • Patent number: 11297170
    Abstract: A method of transmitting data to a receiver via a network includes transmitting a sequence of first data packets to the receiver via the network, each first data packet including payload data and identification data, the identification data identifying the respective first data packet, the identification data being different for each first data packet. The method also includes transmitting a corresponding second data packet for each first data packet to the receiver via the network, each second data packet including the data enabling identification of the corresponding first data packet and additional data related to the corresponding first data packet, the data enabling identification of the corresponding first data packet enabling the receiver to associate each second data packet with the corresponding first data packet.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: April 5, 2022
    Assignee: NAGRAVISION S.A.
    Inventors: Brecht Wyseur, Klaus Kursawe
  • Publication number: 20220075849
    Abstract: The present invention relates to a system for rendering a content, the rendering of which is subject to conditional access security conditions. A system is described, comprising a host device and a detachable security device, the security device configured to decrypt the encrypted content, re-encrypt it under a local key and to deliver the re-encrypted content to the host device while ensuring that the host device applies or otherwise enforces any conditions associated with the rendering of the content.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Applicant: NAGRAVISION S.A.
    Inventors: Philippe Desarzens, Fabien Gremaud, Jean-Luc Bussy