Patents Assigned to NAGRAVISION SARL
  • Publication number: 20240038047
    Abstract: The present disclosure relates to surveillance technology. In particular, the present disclosure relates to a surveillance device, a surveillance system and a method of surveillance for surveillance of a person. Further in particular, the present disclosure relates to the surveillance of a person in a physical space to determine a compliant or non-compliant behaviour of said person. Accordingly, there is provided a personal surveillance device (110), comprising a first surveillance sensor element (116a), a second surveillance sensor element (116b) and a processing element (314), wherein the first surveillance sensor element and the second surveillance sensor element are sensor elements each comprising a different sensor type, wherein the personal surveillance device is adapted to be connectable to a host computing device and wherein the personal surveillance device is adapted to execute a computing environment on the host computing device.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 1, 2024
    Applicant: NAGRAVISION SARL
    Inventor: Christophe Schmid
  • Patent number: 11889164
    Abstract: A method of processing a video fragment into two or more variants of the video fragment, each variant having a different watermark, the method comprising: fragmenting a video content into a sequence of fragments; watermarking a plurality of the fragments to create two or more variants of each of the plurality of fragments, wherein the two or more variants of one fragment are watermarked using different watermarks; adjusting the length of the two or more variants for at least one of the fragments to a same adjusted length, wherein the adjusted length is indicative of a temporal position of the two or more variants of the at least one of the fragments compared to variants of other fragments in the sequence of fragments.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: January 30, 2024
    Assignee: Nagravision Sàrl
    Inventor: Jacobus Pieter Johannes Panis
  • Publication number: 20240028703
    Abstract: A system for actively monitoring and securing a CDI. The system comprises a TEE implementing one or more monitoring policy rule for ruling the active monitoring of the CDI. The system further comprises an IC comprising one or more monitoring device for monitoring the CDI at a corresponding monitoring tapping point delivering a corresponding monitoring information element. The IC is configured for providing to the TEE a monitoring information based on the monitoring information element. The IC is subordinated to the TEE. The one or more monitoring device is configured by the TEE responsive to the implementation of the one or more monitoring policy rule.
    Type: Application
    Filed: December 9, 2021
    Publication date: January 25, 2024
    Applicant: NAGRAVISION SÀRL
    Inventors: Christophe SCHMID, Joël CONUS
  • Patent number: 11879938
    Abstract: A method for detecting perturbations in a logic circuit including a plurality of datapaths coordinated by a clock signal and at least one test circuit having a programmable length datapath for varying a test propagation delay. The test circuit further including inputs, an output and an error generator for providing an error in case that the output is different than an expected output for the inputs. The test circuit having a calibration mode including determining a critical propagation delay by varying the programmable length datapath until the error generator outputs an error, adjusting the programmable length datapath to include therein a tolerance delay, and switching into a detection mode configured to detect a perturbation in the logic circuit along the programmable length datapath in case the error generator outputs an error.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 23, 2024
    Assignee: Nagravision Sàrl
    Inventors: Jean-Marie Martin, Roan Hautier
  • Publication number: 20240021053
    Abstract: 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 blockc
    Type: Application
    Filed: July 18, 2023
    Publication date: January 18, 2024
    Applicant: NAGRAVISION SARL
    Inventors: Scott Carlson, José-Emmanuel Pont
  • Publication number: 20240022432
    Abstract: 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: Application
    Filed: November 3, 2021
    Publication date: January 18, 2024
    Applicant: NAGRAVISION SARL
    Inventors: Ryan Spanier, Nathan Hamiel, Nils Amiet, Joshua Roys
  • Patent number: 11876895
    Abstract: 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: Grant
    Filed: September 9, 2022
    Date of Patent: January 16, 2024
    Assignee: NAGRAVISION SARL
    Inventors: Jean-Bernard Fischer, Nicolas Fischer, Fabien Gremaud, Karine Villegas
  • Patent number: 11856244
    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: Grant
    Filed: August 23, 2022
    Date of Patent: December 26, 2023
    Assignee: Nagravision Sàrl
    Inventor: Philippe Stransky-Heilkron
  • Patent number: 11853465
    Abstract: 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: Grant
    Filed: January 11, 2023
    Date of Patent: December 26, 2023
    Assignee: Nagravision Sàrl
    Inventors: Didier Hunacek, Marco Macchetti, Jerome Perrine
  • Publication number: 20230387695
    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: Application
    Filed: June 29, 2023
    Publication date: November 30, 2023
    Applicant: NAGRAVISION SARL
    Inventor: Antoine BURCKARD
  • Publication number: 20230375368
    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: Application
    Filed: July 6, 2023
    Publication date: November 23, 2023
    Applicant: NAGRAVISION SARL
    Inventors: Joel WENGER, Corinne LE BUHAN
  • Publication number: 20230353799
    Abstract: 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: Application
    Filed: April 24, 2023
    Publication date: November 2, 2023
    Applicant: NAGRAVISION Sarl
    Inventors: Christian SCHWARZ, Andre NICOULIN, Didier HUNACEK
  • Publication number: 20230344625
    Abstract: 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: Application
    Filed: September 10, 2021
    Publication date: October 26, 2023
    Applicant: NAGRAVISION, SARL
    Inventors: Marco MACCHETTI, Jerome PERRINE, Didier HUNACEK
  • Patent number: 11784804
    Abstract: 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: Grant
    Filed: September 17, 2021
    Date of Patent: October 10, 2023
    Assignee: Nagravision Sàrl
    Inventor: Tommaso Gagliardoni
  • Patent number: 11785315
    Abstract: 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: Grant
    Filed: October 3, 2022
    Date of Patent: October 10, 2023
    Assignee: NAGRAVISION SÀRL
    Inventors: Yann Bieber, André Nicoulin
  • Patent number: 11775664
    Abstract: 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: Grant
    Filed: August 2, 2021
    Date of Patent: October 3, 2023
    Assignee: NAGRAVISION SARL
    Inventors: Romain Jufer, Cristian Ruiz, Olivier Morel
  • Patent number: 11777720
    Abstract: 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: Grant
    Filed: June 12, 2020
    Date of Patent: October 3, 2023
    Assignee: NAGRAVISION SÀRL
    Inventor: Tommaso Gagliardoni
  • Publication number: 20230300157
    Abstract: 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: Application
    Filed: March 17, 2022
    Publication date: September 21, 2023
    Applicant: NAGRAVISION SARL
    Inventors: Joshua Roys, William Lane
  • Patent number: 11760305
    Abstract: 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: Grant
    Filed: December 16, 2021
    Date of Patent: September 19, 2023
    Assignee: Nagravision Sàrl
    Inventors: Frédéric Thomas, Joël Conus
  • Patent number: 11750620
    Abstract: 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: Grant
    Filed: November 28, 2019
    Date of Patent: September 5, 2023
    Assignee: Nagravision Sàrl
    Inventors: Fabien Gremaud, Frederic Thomas, Jean-Bernard Fischer