Patents by Inventor Christian Wirz

Christian Wirz 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: 8793502
    Abstract: The aim of the present invention consists of reducing the switching time from one reception channel to another. In fact, this reduction will be particularly discernable since the number of different rights stored in a security module of a multimedia unit or decoder is high. When a user selects a service among those proposed by an electronic programs guide, an access control module explores a stored service information table in order to extract an access condition associated to the service. This access condition allows determining an index in a rights table stored in the access control module of a right that fulfills the access condition. The access control module transmits to the security module the index thus determined alone or accompanied by a control message. This index allows the security module to find quickly the right that it compares afterwards with the access condition included in the control message after decryption of the latter.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: July 29, 2014
    Assignee: Nagravision S.A.
    Inventors: Xavier Carrel, Sebastien Erard, Christian Wirz, Jimmy Cochard
  • Patent number: 7890770
    Abstract: This invention concerns a security module deactivation and reactivation method particularly intended for access control of conditional access data. These security modules include a plurality of registers (R1, R2, R3, Rn) containing values. The method includes the step of sending at least one management message (RUN-EMM) containing an executable code, this executable code being loaded into a memory of the security module and then executed. The execution of this code in particular can carry out the combination and/or the enciphering of the values of the registers, or render these values illegible. This method also allows the reactivation of the security modules that have been deactivated previously. In this case, the method includes the step of sending another message containing an executable code (RUN-EMM?1) for the reactivation of the modules, this executable code having an inverted function to that of the executable code used for the deactivation of the security modules.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: February 15, 2011
    Assignee: Nagravision S.A.
    Inventors: Henri Kudelski, Olivier Brique, Christian Wirz, Patrick Hauert
  • Publication number: 20100268964
    Abstract: The aim of the present invention consists of reducing the switching time from one reception channel to another. In fact, this reduction will be particularly discernable since the number of different rights stored in a security module of a multimedia unit or decoder is high. When a user selects a service among those proposed by an electronic programs guide, an access control module explores a stored service information table in order to extract an access condition associated to the service. This access condition allows determining an index in a rights table stored in the access control module of a right that fulfils the access condition. The access control module transmits to the security module the index thus determined alone or accompanied by a control message. This index allows the security module to find quickly the right that it compares afterwards with the access condition included in the control message after decryption of the latter.
    Type: Application
    Filed: November 25, 2008
    Publication date: October 21, 2010
    Applicant: NAGRAVISION S.A.
    Inventors: Xavier Carrel, Sebastien Erard, Christian Wirz, Jimmy Cochard
  • Patent number: 7720222
    Abstract: The aim of this invention is to be able to recover specific information of a security module when it has been replaced by a new module in a user unit connected to a broadcasting network.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: May 18, 2010
    Assignee: Nagravision SA
    Inventors: Christian Wirz, Olivier Brique, Xavier Carrel, Grégory Duval, Patrick Hauert
  • Publication number: 20060140722
    Abstract: System for protection against high waters is constructed from assembled protective walls, fixed on the ground/dam and interconnected between them selves, each to another. Each protective wall 1 contains, in its body, a first edge 1.1 and second edge 1.2, that are positioned under right angles, lying from the both sides of the guiding plates 2. The guiding plates 2 stands forward, over the body, with the edge 1.1, whereby it forms first gap S1 in the U-shape in the form of slot, and two other guiding plates 2, formed the second edge 1.2 that creates second gap S2 in the form of slot. The third edge 1.3 is extended from the upper side, while the fourth edge 1.4 is parallel with the second edge 1.2 while in the gap S2, between guiding plates 2, the protective wall is attached as a slider. The guiding plates 2 are arranged on the first edge 1.1, appropriately distanced from the fourth edge 1.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 29, 2006
    Inventors: Christian Wirz, Udo Brabender
  • Publication number: 20060102170
    Abstract: The mobile protection against high waters that is contained from transportable structural elements that are water proof and that can be filled or emptied with water where the structural elements can be placed aside each to other and each over other, taking the shape of rectangular vessels (1) in case of linear flow of the protective wall against high waters and the shape of key segments (2) when the flow is curved. The hook hanger (9) represents easy up cap with opposite hooks (20) to the structural elements that lay across it. The easy up caps at the segments (2) have additional prolongation of the basic plate (19) because of the assurance of the segments (2) with the vessels (1) throughout the opposite hooks (20). The vertical jacket element (8) is in shape of half-profile, and it is unsolvable adhered over the layer of caouchouc. The jacket element (10) from the segment (2) has a profile in shape of mushroom. The jaws (17) are made of PE-HD-plate with inserted steel tops.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 18, 2006
    Inventors: Christian Wirz, Udo Brabender
  • Publication number: 20060059507
    Abstract: The aim of this invention is to be able to recover specific information of a security module when it has been replaced by a new module in a user unit connected to a broadcasting network.
    Type: Application
    Filed: February 5, 2004
    Publication date: March 16, 2006
    Applicant: Nagravision SA
    Inventors: Christian Wirz, Olivier Brique, Xavier Carrel, Gregory Duval, Patrick Hauert
  • Publication number: 20060005262
    Abstract: This invention concerns a security module deactivation and reactivation method particularly intended for access control of conditional access data. These security modules include a plurality of registers (R1, R2, R3, Rn) containing values. The method includes the step of sending at least one management message (RUN-EMM) containing an executable code, this executable code being loaded into a memory of the security module and then executed. The execution of this code in particular can carry out the combination and/or the enciphering of the values of the registers, or render these values illegible. This method also allows the reactivation of the security modules that have been deactivated previously. In this case, the method includes the step of sending another message containing an executable code (RUN-EMM?1) for the reactivation of the modules, this executable code having an inverted function to that of the executable code used for the deactivation of the security modules.
    Type: Application
    Filed: August 29, 2005
    Publication date: January 5, 2006
    Inventors: Henri Kudelski, Olivier Brique, Christian Wirz, Patrick Hauert