Patents by Inventor André Nicoulin
André Nicoulin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11943491Abstract: 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: GrantFiled: April 24, 2023Date of Patent: March 26, 2024Assignee: NAGRAVISION SárlInventors: Christian Schwarz, Andre Nicoulin, Didier Hunacek
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Publication number: 20240073490Abstract: 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: ApplicationFiled: September 7, 2023Publication date: February 29, 2024Applicant: NAGRAVISION SARLInventors: Yann BIEBER, André NICOULIN
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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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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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Publication number: 20230224173Abstract: A method for remotely programming a programmable device designed to provide an expected sensitive result. The method including transmitting a first program code to the programmable device, the first program code being configured to get at least one distinctive data unique and physically inherent to the programmable device, retrieving the distinctive data, and transmitting a second program code based on the retrieved distinctive data to the programmable device, so as to load the second program code into the programmable device.Type: ApplicationFiled: July 6, 2021Publication date: July 13, 2023Applicant: Nagravision SàrlInventors: Jerome PERRINE, Karine VILLEGAS, Didier HUNACEK, André NICOULIN, Richard ROULLEAU
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Patent number: 11671637Abstract: 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: GrantFiled: January 12, 2021Date of Patent: June 6, 2023Assignee: NAGRAVISION S.A.Inventors: Christian Schwarz, Andre Nicoulin, Didier Hunacek
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Patent number: 11575977Abstract: 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: September 4, 2020Date of Patent: February 7, 2023Assignee: NAGRAVISION S.A.Inventors: Yann Bieber, André Nicoulin
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Publication number: 20230033476Abstract: 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: ApplicationFiled: October 3, 2022Publication date: February 2, 2023Applicant: NAGRAVISION SarLInventors: Yann BIEBER, André NICOULIN
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Publication number: 20210168413Abstract: 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: January 12, 2021Publication date: June 3, 2021Applicant: NAGRAVISION S.A.Inventors: Christian SCHWARZ, Andre NICOULIN, Didier HUNACEK
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Patent number: 10931983Abstract: 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: GrantFiled: June 29, 2016Date of Patent: February 23, 2021Assignee: NAGRAVISION S.A.Inventors: Christian Schwarz, André Nicoulin, Didier Hunacek
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Publication number: 20200404392Abstract: 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: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Applicant: NAGRAVISION S.A.Inventors: Yann BIEBER, André NICOULIN
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Publication number: 20190052916Abstract: 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: June 29, 2016Publication date: February 14, 2019Inventors: Christian SCHWARZ, André NICOULIN, Didier HUNACEK
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Publication number: 20190020933Abstract: 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: ApplicationFiled: December 20, 2016Publication date: January 17, 2019Inventors: Yann BIEBER, André NICOULIN
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Patent number: 8463883Abstract: A method to force a multimedia unit to update an application for viewing broadcast conditional access content by linking said update to an update of the conditional access module firmware. The firmware update is initialized by means of version information transmitted in the content stream. In particular, this version information may be included in ECM or EMM messages or in services information tables in order to be processed by the conditional access module independently from the multimedia unit. The version information comprises of a minimum version and of an available maximum version. If the conditional access module detects that the current version of the firmware is inferior to the available maximum version, it transmits a message requesting an update of the application that initiates downloading a firmware updating from a management center. The update installation is carried out simultaneously in the conditional access module and in the multimedia unit.Type: GrantFiled: February 3, 2009Date of Patent: June 11, 2013Assignee: Nagravision S.A.Inventors: Andre Nicoulin, Corinne Le Buhan, Serge Philip
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Patent number: 7697686Abstract: Example embodiments are directed to a digital audio/video (AV) data processing unit and a method of controlling access to the digital AV data. The processing unit of AV digital data includes a deciphering unit of the AV data, a decompression unit, an input/output interface of the processed AV data and communication device towards a security module. The deciphering and decompression units respectively include an encryption unit and a decryption unit, each having at least one personal key and a common encryption key. Deciphering the AV data using the control words and re-encrypting the deciphered AV data occurs only after a successful verification of the control word and the common key. After temporary storage, the re-encrypted AV data cannot be decrypted by the decryption unit unless the common key has been positively verified by the security module by way of a random number generated by the decryption unit.Type: GrantFiled: November 22, 2005Date of Patent: April 13, 2010Assignee: Nagravision S.A.Inventors: Jean-Michel Puiatti, André Nicoulin, Nicolas Fischer, Guy Moreillon, Fabien Gremaud, Michael John Hill
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Publication number: 20100077390Abstract: A method to force a multimedia unit to update an application for viewing broadcast conditional access content by linking said update to an update of the conditional access module firmware. The firmware update is initialized by means of version information transmitted in the content stream. In particular, this version information may be included in ECM or EMM messages or in services information tables in order to be processed by the conditional access module independently from the multimedia unit. The version information comprises of a minimum version and of an available maximum version. If the conditional access module detects that the current version of the firmware is inferior to the available maximum version, it transmits a message requesting an update of the application that initiates downloading a firmware updating from a management center. The update installation is carried out simultaneously in the conditional access module and in the multimedia unit.Type: ApplicationFiled: February 3, 2009Publication date: March 25, 2010Applicant: Nagravision S.A.Inventors: Andre Nicoulin, Corinne Le Buhan, Serge Philip
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Publication number: 20060109982Abstract: A digital audio/video data processing unit and an access control method to this data are disclosed. The processing unit of audio/video digital data encrypted with control-words coming from control messages includes a deciphering unit of the audio/video data, a decompression unit, an input/output interface of the processed audio/video data and communication device towards a security module. The deciphering and decompression units include respectively an encryption unit and a decryption unit each having at least one personal key and a common encryption key. It includes a secured transmission device of the common key and of the control word extracted from a control message between the security module, the deciphering unit and the encryption unit using the personal key of the encryption unit.Type: ApplicationFiled: November 22, 2005Publication date: May 25, 2006Inventors: Jean-Michel Puiatti, Andre Nicoulin, Nicolas Fischer, Guy Moreillon, Fabien Gremaud, Michael Hill