Patents Assigned to NAGRAVISION SARL
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Publication number: 20240022432Abstract: Systems and techniques are described herein for validating one or more requests. For example, the systems and techniques can include receiving message data from a first device accessible to a user. The message data can be associated with a message to be sent using the first device. The systems and techniques can also include sending, to a second device accessible to the user, a request for confirmation that the user requested a digital signature for the message, the first device and second device being different devices. The systems and techniques can further include receiving a confirmation from the second device, the confirmation confirming that the user requested the digital signature for the message. The systems and techniques can further include generating the digital signature for the message using the message data and a private key and sending the digital signature to the first device.Type: ApplicationFiled: November 3, 2021Publication date: January 18, 2024Applicant: NAGRAVISION SARLInventors: Ryan Spanier, Nathan Hamiel, Nils Amiet, Joshua Roys
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Publication number: 20240021053Abstract: A localized electronic betting system includes: a smart contract generation module and a results engine located in a same low-latency environment as the smart contract generation module, wherein: the smart contract generation module is configured to receive a first betting statement from a first user device located within the low-latency environment, to generate a smart contract based on the first betting statement, the smart contract including a criterion to be met and configured to self-execute in response to a determination that the criterion is met, and to transmit the generated smart contract to a local blockchain node located within the low-latency environment; the results engine is configured, based on content received from a results source, to determine information indicative of whether the criterion in the first betting statement is met; and the localized betting system is configured to transmit a signal to the local blockchain node for storage on a local blockchain ledger or a local copy of a blockcType: ApplicationFiled: July 18, 2023Publication date: January 18, 2024Applicant: NAGRAVISION SARLInventors: Scott Carlson, José-Emmanuel Pont
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Patent number: 11876895Abstract: The present disclosure includes methods, devises and systems for preparing and installing one or more application keys owned by application owners in a remote device. The present disclosure further proposes methods, devices and systems for secure installation of subsequent application keys on a device utilising corresponding key derivation functions to associate an application with a respective policy and identifier using significantly Imv bandwidth for transfer of keys for execution of the respective application on the device.Type: GrantFiled: September 9, 2022Date of Patent: January 16, 2024Assignee: NAGRAVISION SARLInventors: Jean-Bernard Fischer, Nicolas Fischer, Fabien Gremaud, Karine Villegas
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Patent number: 11853465Abstract: The disclosure relates to a method for enabling the secure functions of a chipset (1) and especially the encryption of the content of the secure memory (7) when the device goes into low power mode. The content of the secure memory (7) may be encrypted and stored in an external memory (20) during low power mode of the chipset (1).Type: GrantFiled: January 11, 2023Date of Patent: December 26, 2023Assignee: Nagravision SàrlInventors: Didier Hunacek, Marco Macchetti, Jerome Perrine
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Patent number: 11856244Abstract: 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: GrantFiled: August 23, 2022Date of Patent: December 26, 2023Assignee: Nagravision SàrlInventor: Philippe Stransky-Heilkron
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Publication number: 20230387695Abstract: 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: ApplicationFiled: June 29, 2023Publication date: November 30, 2023Applicant: NAGRAVISION SARLInventor: Antoine BURCKARD
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Publication number: 20230375368Abstract: 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: ApplicationFiled: July 6, 2023Publication date: November 23, 2023Applicant: NAGRAVISION SARLInventors: Joel WENGER, Corinne LE BUHAN
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Publication number: 20230353799Abstract: Devices, servers, systems and methods for content protection are provided. Disclosed embodiments improve temporal granularity of controlling access to the protected content and increase resilience against attacks attempting to prevent re-evaluation of conditions of access. Enforcement of re-evaluation may be based on the receipt and/or verification of tokens. In some embodiments, re-evaluation is enforced by periodically rendering content keys required for content decryption unuseable and/or clearing content keys already in use.Type: ApplicationFiled: April 24, 2023Publication date: November 2, 2023Applicant: NAGRAVISION SarlInventors: Christian SCHWARZ, Andre NICOULIN, Didier HUNACEK
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Publication number: 20230344625Abstract: A device for generating at least one cryptographic key by selecting at least three input data selected among, on one hand, a predetermined data and, on the other hand, a function of at least one piece of data having a type belonging to the group including: a physical unclonable type, corresponding to physical unclonable function data, a hardwired type, corresponding to data hardwired within said device, and a software type, corresponding to software data, assembling the at least three input data to produce an assembled input data, and applying the assembled input data into a cryptographic element to produce a cryptographic key.Type: ApplicationFiled: September 10, 2021Publication date: October 26, 2023Applicant: NAGRAVISION, SARLInventors: Marco MACCHETTI, Jerome PERRINE, Didier HUNACEK
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Patent number: 11785315Abstract: A method for securely receiving a multimedia content by a client device operated by one or more operator(s) involving a dedicated provisioning server of a security provider managing symmetric secrets used by the client devices and operators license servers. The provisioning server provides to the client device one or more generations of operator specific unique device secrets, which are then exploited by the various operators' license servers to deliver licenses such that authorized client devices can consume protected multimedia contents.Type: GrantFiled: October 3, 2022Date of Patent: October 10, 2023Assignee: NAGRAVISION SÀRLInventors: Yann Bieber, André Nicoulin
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Patent number: 11784804Abstract: A method for data security implemented as an application on a device includes generating a request for one or more secret shares needed to reconstruct a key. The device stores a first secret share in its memory. The method also includes signing the request with a certificate that identifies the request as valid without identifying the device, and sending the request, signed with the certificate, to at least one other device. The method further includes receiving, from the at least one other device, the one or more secret shares, determining whether the one or more secret shares received from the at least one other device is sufficient to reconstruct the key, and reconstructing the key using the first secret share and the one or more secret shares upon determining that the one or more secret shares are sufficient to reconstruct the key.Type: GrantFiled: September 17, 2021Date of Patent: October 10, 2023Assignee: Nagravision SàrlInventor: Tommaso Gagliardoni
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Patent number: 11777720Abstract: A method for data security implemented as an application on a device includes generating a request for one or more secret shares needed to reconstruct a key. The device stores a first secret share in its memory. The method also includes signing the request with a certificate that identifies the request as valid without identifying the device, and sending the request, signed with the certificate, to at least one other device. The method further includes receiving, from the at least one other device, the one or more secret shares, determining whether the one or more secret shares received from the at least one other device is sufficient to reconstruct the key, and reconstructing the key using the first secret share and the one or more secret shares upon determining that the one or more secret shares are sufficient to reconstruct the key.Type: GrantFiled: June 12, 2020Date of Patent: October 3, 2023Assignee: NAGRAVISION SÀRLInventor: Tommaso Gagliardoni
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Patent number: 11775664Abstract: The present disclosure relates generally to data access control solutions. In particular, techniques are provided to implement a secure and distributed file storage scheme and in particular, a managed access system using a blockchain. In some aspects, a process of the disclosed technology includes operations for associating a first key share with a first copy of a file, wherein the first copy of the file is stored by a first party, associating a second key share with a second copy of the file, and recording versioning information corresponding with the file on a distributed ledger accessible by the first party and the second party. In some aspects, the process can further include operations for managing access to the file using the first key share and the second key share. Systems and machine-readable media are also provided.Type: GrantFiled: August 2, 2021Date of Patent: October 3, 2023Assignee: NAGRAVISION SARLInventors: Romain Jufer, Cristian Ruiz, Olivier Morel
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Publication number: 20230300157Abstract: Systems and techniques are described herein for monitoring network activity between a customer premise and the Internet, identifying data packets for review that are exchanged between the customer premise and the Internet, determining Internet Protocol address information for the data packets, receiving device name information associated with the data packets, and sending information to the customer premise that includes the device name and alert information related to the data packets.Type: ApplicationFiled: March 17, 2022Publication date: September 21, 2023Applicant: NAGRAVISION SARLInventors: Joshua Roys, William Lane
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Patent number: 11760305Abstract: Passive entry systems, such as passive entry-passive start vehicle systems, using short-range wireless communication signals to determine a distance between nomadic devices and unlockable devices based on a round trip time of flight (TOF) measurement.Type: GrantFiled: December 16, 2021Date of Patent: September 19, 2023Assignee: Nagravision SàrlInventors: Frédéric Thomas, Joël Conus
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Patent number: 11750620Abstract: In overview, a computer-implemented method of transmitting data in a data stream from a first device to a second device is disclosed. The data stream is encrypted before transmission from the first device to the second device, and a location of the data in the data stream is indicated to the second device. The location may be a pre-shared location between the first and second devices, or the first device may transmit the location of the data to the second device. The second device decrypts the encrypted data stream, identifies the data in the data stream based on the location, and encrypts the identified data in the data stream.Type: GrantFiled: November 28, 2019Date of Patent: September 5, 2023Assignee: Nagravision SàrlInventors: Fabien Gremaud, Frederic Thomas, Jean-Bernard Fischer
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Patent number: 11714883Abstract: A media device receives a domain key from a service provider. The media device further encrypts media with a media key and encrypts the media key with the domain key to form an encrypted media token: the protected media key is encapsulated in an encrypted media token. The service provider may then receive the encrypted media token and one or more receiving entity identifiers relating to a receiving entity and ascertain whether the receiving entity is entitled to access media from the media device. If the receiving entity is entitled to access media from the media device, the service provider decrypts the cryptographic media token using the domain key to obtain the media key and providing the media key to the receiving entity. As such, an authenticated receiving entity may obtain the media key necessary to decrypt the media.Type: GrantFiled: April 4, 2018Date of Patent: August 1, 2023Assignee: Nagravision SàrlInventors: Michel Angel, Hervé Retaureau, Antony Celletti
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Patent number: 11716540Abstract: The disclosure provide methods and content consumption devices that enable a scene, for example a 360° scene, that is larger (i.e. has more pixels in at least one dimension) than a display format of the content consumption device to be displayed. Constituent scene views are received individually by the content consumption device, for example as broadcasts, and are combined, for example stitched together, at the content consumption device to output a part of the scene that fits in the display format. The part of the scene (and hence the required constituent streams) to be displayed are determined by a signal, for example a navigational input from a user, enabling the user to navigate in the scene.Type: GrantFiled: August 18, 2021Date of Patent: August 1, 2023Assignee: Nagravision SàrlInventor: Bertrand Wendling
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Publication number: 20230224707Abstract: A method of acquiring access rights to conditional access content. The method comprises receiving an access right on a first terminal through a first communication channel; storing said access right in said first terminal; sending a request for said conditional access content to a content provider, said request containing at least an identifier of an account to which said first terminal is associated, an identifier of the requested content and a piece of information concerning said access right; verifying, by said content provider, the authenticity of said access right using said piece of information concerning the access right; and when there has been a successful verification, marking said access right as used, and sending said conditional access content to at least one terminal linked to said account. The first terminal using near field communication technology (NFC) during at least one transfer of said access rights.Type: ApplicationFiled: January 20, 2023Publication date: July 13, 2023Applicant: NAGRAVISION SarLInventors: Pierre SARDA, Philippe STRANSKY, Bertrand WENDLING
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Publication number: 20230222251Abstract: An integrated circuit device includes a semiconductor substrate layer and at least one active layer including electronic components and supported by the semiconductor substrate layer. The semiconductor substrate layer and the at least one active layer are sandwiched between two protective layers acting as physical obstacles to prevent the passage of radiations. In addition, the two protective layers are electrically connected to a detection circuit that can monitor an electrical information of the protective layers and detect a physical attack of at least one of the two protective layers, based on the monitored electrical information.Type: ApplicationFiled: July 8, 2021Publication date: July 13, 2023Applicant: NAGRAVISION SàrlInventors: Sylvain PELISSIER, Pascal AUBRY