Patents by Inventor Minh Son Tran

Minh Son Tran 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).

  • Patent number: 11546151
    Abstract: Example embodiments provide systems and methods for securing a deployed camera. A security apparatus is coupled to the deployed camera and accesses video content from the coupled camera. The security apparatus accesses video content from the coupled camera, splits the video content within a plurality of RTP packets, encrypts payloads of the RTP packets, embeds in a header of the encrypted RTP packets, at least two key identifications for decryption of the encrypted RTP packets, and transmits the plurality of RTP packets over a network to a video management system.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 3, 2023
    Assignee: NAGRAVISION S.A.
    Inventors: Michel Angel, Philippe Le Berre, Herve Retaureau, Minh-Son Tran
  • Publication number: 20200344053
    Abstract: Example embodiments provide systems and methods for securing a deployed camera. A security apparatus is coupled to the deployed camera and accesses video content from the coupled camera. The security apparatus accesses video content from the coupled camera, splits the video content within a plurality of RTP packets, encrypts payloads of the RTP packets, embeds in a header of the encrypted RTP packets, at least two key identifications for decryption of the encrypted RTP packets, and transmits the plurality of RTP packets over a network to a video management system.
    Type: Application
    Filed: December 20, 2018
    Publication date: October 29, 2020
    Inventors: Michel Angel, Philippe Le Berre, Herve Retaureau, Minh-Son Tran
  • Publication number: 20180302690
    Abstract: The present invention relates to a system and a method for reliably including a fingerprint or a watermark in a digital media content. In order to endure that the marking process will not be bypassed, the disclosed method includes insertion of the mark when the content is in compressed format. The disclosure covers ways and means for simplifying the process of including visible or invisible marks in the content using on-screen overlay techniques.
    Type: Application
    Filed: October 3, 2016
    Publication date: October 18, 2018
    Inventors: Minh Son TRAN, Yishan ZHAO, Pierre SARDA
  • Patent number: 10015564
    Abstract: A system and method to watermark a compressed content encrypted by at least one content key, said content key as well as pre-marking data forming Conditional Access System (CAS) data, said CAS Data being encrypted by a transmission key and comprising at least one signature to authenticate all or part of the CAS Data, said compressed content being received by a client device comprising: a Descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a Watermark (WM) inserter directly connected to the output of the Descrambler, said Descrambler and said WM inserter being connected with a Conditioner, said Conditioner executing the following steps: receiving the CAS Data, decrypting the CAS Data with the transmission key, verifying the signature of the CAS Data, and if the signature is valid, transferring the content key to the descrambler and the pre-marking data to the WM inserter, and watermarking by the WM inserter, the decrypted content received by t
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 3, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Patrick Servet, Minh Son Tran, Pierre Sarda
  • Patent number: 9986308
    Abstract: A system and method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key, said content key as well as watermark instruction forming Conditional Access Module (CAS) data, said CAS data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS data, said client device comprising a CAS configured to process the CAS data, a descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a watermark inserter connected to the output of the decoder, a secure activation module connected with the watermark inserter, a secure element connected with the watermark inserter and the secure activation module.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 29, 2018
    Assignee: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Minh Son Tran, Pierre Sarda
  • Patent number: 9959906
    Abstract: A method and a receiver device configured to mark a media content sequence comprising a succession of media frames. A decoder included in the receiver device selects at least two decoded consecutive media frames from the media content sequence according to a predefined information code previously stored in a configuration setting memory of the receiver device. A marking module associated to the decoder inserts a transition effect between the at least two selected decoded consecutive media frames including a preceding media frame and at least one immediately following media frame. The transition effect is retrieved from a library of transition effects stored in a memory associated to the marking module and applied on the basis of the preceding media frame and the at least one immediately following media frame.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: May 1, 2018
    Assignee: NAGRAVISION S.A.
    Inventor: Minh Son Tran
  • Publication number: 20180048946
    Abstract: A system and method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key, said content key as well as watermark instruction forming Conditional Access Module (CAS) data, said CAS data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS data, said client device comprising a CAS configured to process the CAS data, a descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a watermark inserter connected to the output of the decoder, a secure activation module connected with the watermark inserter, a secure element connected with the watermark inserter and the secure activation module.
    Type: Application
    Filed: September 14, 2017
    Publication date: February 15, 2018
    Applicant: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Minh Son Tran, Pierre Sarda
  • Publication number: 20170339472
    Abstract: A system and method to watermark a compressed content encrypted by at least one content key, said content key as well as pre-marking data forming Conditional Access System (CAS) data, said CAS Data being encrypted by a transmission key and comprising at least one signature to authenticate all or part of the CAS Data, said compressed content being received by a client device comprising: a Descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a Watermark (WM) inserter directly connected to the output of the Descrambler, said Descrambler and said WM inserter being connected with a Conditioner, said Conditioner executing the following steps: receiving the CAS Data, decrypting the CAS Data with the transmission key, verifying the signature of the CAS Data, and if the signature is valid, transferring the content key to the descrambler and the pre-marking data to the WM inserter, and watermarking by the WM inserter, the decrypted content received by t
    Type: Application
    Filed: July 27, 2017
    Publication date: November 23, 2017
    Applicant: NAGRAVISION S.A.
    Inventors: Didier HUNACEK, Patrick SERVET, Minh Son TRAN, Pierre SARDA
  • Patent number: 9813780
    Abstract: A receiver device having a processor, memories, descrambler and decoders modules configured to produce a sequence of elementary media content packets. The receiver device further comprises a marker unit configured to mark data in the sequence of elementary media content packets according to a pattern defined by an internal parameter associated to the receiving device. The marker unit is configured to determine, in the sequence of elementary media content packets at least one segment of a predetermined length and starting at a predetermined position in the sequence, to divide the segment into a predetermined number of contiguous windows including data of all or part of at least one elementary media content packet. Each window in the segment defined in the sequence of elementary media content packets is indexed by an index defining a position of a window in the segment.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: November 7, 2017
    Assignee: NAGRAVISION S.A.
    Inventors: Pierre Sarda, Jean-Philippe Aumasson, Minh Son Tran
  • Patent number: 9794646
    Abstract: A system and method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key, said content key as well as watermark instruction forming Conditional Access Module (CAS) data, said CAS data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS data, said client device comprising a CAS configured to process the CAS data, a descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a watermark inserter connected to the output of the decoder, a secure activation module connected with the watermark inserter, a secure element connected with the watermark inserter and the secure activation module.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 17, 2017
    Assignee: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Minh Son Tran, Pierre Sarda
  • Patent number: 9729941
    Abstract: A system and method to watermark a compressed content encrypted by at least one content key, said content key as well as pre-marking data forming Conditional Access System (CAS) data, said CAS Data being encrypted by a transmission key and comprising at least one signature to authenticate all or part of the CAS Data, said compressed content being received by a client device comprising: a Descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a Watermark (WM) inserter directly connected to the output of the Descrambler, said Descrambler and said WM inserter being connected with a Conditioner, said Conditioner executing the following steps: receiving the CAS Data, decrypting the CAS Data with the transmission key, verifying the signature of the CAS Data, and if the signature is valid, transferring the content key to the descrambler and the pre-marking data to the WM inserter, and watermarking by the WM inserter, the decrypted content received by t
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: August 8, 2017
    Assignee: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Patrick Servet, Minh Son Tran, Pierre Sarda
  • Publication number: 20170150233
    Abstract: A system and method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key, said content key as well as watermark instruction forming Conditional Access Module (CAS) data, said CAS data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS data, said client device comprising a CAS configured to process the CAS data, a descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a watermark inserter connected to the output of the decoder, a secure activation module connected with the watermark inserter, a secure element connected with the watermark inserter and the secure activation module.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 25, 2017
    Applicant: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Minh Son Tran, Pierre Sarda
  • Patent number: 9602890
    Abstract: A system and method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key, said content key as well as watermark instruction forming Conditional Access Module (CAS) data, said CAS data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS data, said client device comprising a CAS configured to process the CAS data, a descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a watermark inserter connected to the output of the decoder, a secure activation module connected with the watermark inserter, a secure element connected with the watermark inserter and the secure activation module.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: March 21, 2017
    Assignee: NAGRAVISION S.A.
    Inventors: Didier Hunacek, Minh Son Tran, Pierre Sarda
  • Publication number: 20160261928
    Abstract: A receiver device having a processor, memories, descrambler and decoders modules configured to produce a sequence of elementary media content packets. The receiver device further comprises a marker unit configured to mark data in the sequence of elementary media content packets according to a pattern defined by an internal parameter associated to the receiving device. The marker unit is configured to determine, in the sequence of elementary media content packets at least one segment of a predetermined length and starting at a predetermined position in the sequence, to divide the segment into a predetermined number of contiguous windows including data of all or part of at least one elementary media content packet. Each window in the segment defined in the sequence of elementary media content packets is indexed by an index defining a position of a window in the segment.
    Type: Application
    Filed: November 3, 2014
    Publication date: September 8, 2016
    Inventors: Pierre SARDA, Jean-Philippe AUMASSON, Minh Son TRAN
  • Publication number: 20160105730
    Abstract: A system and method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key, said content key as well as watermark instruction forming Conditional Access Module (CAS) data, said CAS data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS data, said client device comprising a CAS configured to process the CAS data, a descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a watermark inserter connected to the output of the decoder, a secure activation module connected with the watermark inserter, a secure element connected with the watermark inserter and the secure activation module.
    Type: Application
    Filed: April 11, 2014
    Publication date: April 14, 2016
    Inventors: Didier Hunacek, Minh Son Tran, Pierre Sarda
  • Publication number: 20160094802
    Abstract: The secure selection of at least one uniquely visually rendered media content stream(s) by a receiver of streams may allow enhanced fingerprinting of broadcast media content. The stream(s) may be visually rendered, and fingerprint marks inserted, using the preprocessing techniques of explicit insertion, implicit insertion, and object modification. In particular, multiple media content streams of the same event and signaling information may be received by a receiver. Each media content stream of the multiple of the media content streams may include a unique rendering of the media content stream. The receiver may be associated with a unique identifier (ID). At least one media content stream of the multiple media content streams may be selected using the receiver. The selected at least one media content stream of the multiple media content streams may be provided to a display.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 31, 2016
    Inventors: Frédéric Thomas, Frédéric Guitard, José-Emmanuel Pont, Minh-Son Tran
  • Publication number: 20160080831
    Abstract: A system and method to watermark a compressed content encrypted by at least one content key, said content key as well as pre-marking data forming Conditional Access System (CAS) data, said CAS Data being encrypted by a transmission key and comprising at least one signature to authenticate all or part of the CAS Data, said compressed content being received by a client device comprising: a Descrambler having an input to receive the encrypted compressed content and an output to produce an compressed content, a Watermark (WM) inserter directly connected to the output of the Descrambler, said Descrambler and said WM inserter being connected with a Conditioner, said Conditioner executing the following steps: receiving the CAS Data, decrypting the CAS Data with the transmission key, verifying the signature of the CAS Data, and if the signature is valid, transferring the content key to the descrambler and the pre-marking data to the WM inserter, and watermarking by the WM inserter, the decrypted content received by t
    Type: Application
    Filed: April 28, 2014
    Publication date: March 17, 2016
    Inventors: Didier HUNACEK, Patrick SERVET, Minh Son TRAN, Pierre SARDA
  • Publication number: 20150358156
    Abstract: The present invention refers to a method for scrambling an original digital image into a scrambled image and for descrambling the scrambled image into a reconstructed image. The method firstly comprises a scrambling operation for substituting a plurality of original coefficients by dummy coefficients, while safeguarding the coding format, and for storing the substituted original coefficients with their respective position, as original data into at least two control objects, each control object corresponding to a specific degradation level of the original image. This method secondly comprises a descrambling operation for receiving the scrambled image and at least a part of said control objects, and for using original data derived from a selection of at least one of said control objects, performed on the basis of a user access condition, to obtain the reconstructed image by putting back the original coefficients instead of said dummy coefficients thanks to their respective position.
    Type: Application
    Filed: March 18, 2013
    Publication date: December 10, 2015
    Applicant: NAGRAVISION S.A.
    Inventors: Pierre Sarda, Minh-Son Tran, Thierry Dagaeff
  • Publication number: 20150221340
    Abstract: A method and a receiver device configured to mark a media content sequence comprising a succession of media frames. A decoder included in the receiver device selects at least two decoded consecutive media frames from the media content sequence according to a predefined information code previously stored in a configuration setting memory of the receiver device. A marking module associated to the decoder inserts a transition effect between the at least two selected decoded consecutive media frames including a preceding media frame and at least one immediately following media frame. The transition effect is retrieved from a library of transition effects stored in a memory associated to the marking module and applied on the basis of the preceding media frame and the at least one immediately following media frame.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 6, 2015
    Inventor: Minh Son TRAN
  • Publication number: 20150030154
    Abstract: The present invention refers to a method for scrambling an original digital image into a scrambled image and for descrambling the scrambled image into a reconstructed image. The method firstly comprises a scrambling operation for substituting a plurality of original coefficients by dummy coefficients, while safeguarding the coding format, and for storing the substituted original coefficients with their respective position, as original data into at least two control objects, each control object corresponding to a specific degradation level of the original image. This method secondly comprises a descrambling operation for receiving the scrambled image and at least a part of said control objects, and for using original data derived from a selection of at least one of said control objects, performed on the basis of a user access condition, to obtain the reconstructed image by putting back the original coefficients instead of said dummy coefficients thanks to their respective position.
    Type: Application
    Filed: March 19, 2012
    Publication date: January 29, 2015
    Applicant: NAGRAVISION S.A.
    Inventors: Pierre Sarda, Minh-Son Tran, Thierry Dagaeff