Patents by Inventor Christophe Colas

Christophe Colas 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: 8880904
    Abstract: The invention relates to a system and method for making data secure. The inventive system is characterized in that it comprises:—a monotonic counter;—a computational entity;—a physical data medium comprising one or a plurality of data blocks, a first master block comprising the last value recovered from the monotonic counter, an identifier of the last data block written on said medium, a first authentication code guaranteeing the authenticity of the written data block or blocks, a second authentication code calculated from the last written data block, said data being fixed at a neutral value, and a third authentication code guaranteeing the authenticity of the first master block, and a second master block forming a replica of the first master block; and—an authentication key. The invention is used, in particular, to make data secure against playback and sudden interruptions in service in embedded systems.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: November 4, 2014
    Assignee: Trusted Logic Mobility
    Inventors: Axelle Apvrille, Alexandre Frey, Christophe Colas
  • Patent number: 8347338
    Abstract: This application describes a method of referencing content in an application. The method comprises, for a content element, creating a reference to the content element and associating that reference with the content element. This enables the content element (for example, text or images) to be dissociated from other features related to content; for example, its presentation on the screen. In this way, control over presentation may be achieved separately from control of the content itself. In an example, a Content Provider provides referenced content to an Operator. A Program Provider sends referenced scenarios to the Operator. The Operator resolves the reference and sends data for broadcast by the Broadcaster.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: January 1, 2013
    Assignee: Thomson Licensing S.A.
    Inventors: Christophe Colas Noblecourt, Setra Rakotomavo
  • Publication number: 20110162083
    Abstract: The invention relates to a system and method for making data secure. The inventive system is characterized in that it comprises:—a monotonic counter;—a computational entity;—a physical data medium comprising one or a plurality of data blocks, a first master block comprising the last value recovered from the monotonic counter, an identifier of the last data block written on said medium, a first authentication code guaranteeing the authenticity of the written data block or blocks, a second authentication code calculated from the last written data block, said data being fixed at a neutral value, and a third authentication code guaranteeing the authenticity of the first master block, and a second master block forming a replica of the first master block; and—an authentication key. The invention is used, in particular, to make data secure against playback and sudden interruptions in service in embedded systems.
    Type: Application
    Filed: September 27, 2007
    Publication date: June 30, 2011
    Applicant: TRUSTED LOGIC
    Inventors: Axelle Apvrille, Alexandre Frey, Christophe Colas
  • Patent number: 7340528
    Abstract: This application describes a method of referencing content in an application. The method comprises, for a content element, creating a reference to the content element and associating that reference with the content element. This enables the content (for example, text or images) to be dissociated from other features related to content; for example, its presentation on the screen. In this way, control over presentation may be achieved separately from control of the content itself. In an example, a Content Provider 402 provides referenced content to an Operator 404. A Programme Provider 400 sends referenced scenarios to the Operator 404. The Operator 404 resolves the reference and sends data for broadcast by the Broadcaster 406.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: March 4, 2008
    Assignee: Thomson Licensing S.A.
    Inventors: Christophe Colas Noblecourt, Setra Rakotomavo
  • Patent number: 6808111
    Abstract: A terminal software architecture accepts a card that implements a card application of a merchant. A terminal application is developed independently of the terminal. The terminal has an environment component including terminal hardware, an operating system, and an environment services layer that supplies one or more environment dependent services that are dependent upon at least one of the operating system and the hardware of the terminal. The terminal application is compatible with the card application and has a platform independent portion that is independent of the environment component and a business logic layer that implements business policies associated with the terminal. The business logic layer makes calls to the terminal application through an access module and an application programming interface. The terminal application makes calls to the environment services layer through an access module and an application programming interface.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: October 26, 2004
    Assignee: Visa International Service Association
    Inventors: Forough Kashef, Jean-Paul Billon, Christophe Colas, Lance Shigeo Nakamura, Thomas H. Sak