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6 条记录 (耗时 0.011 秒)

    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES ZUGRIFFS AUF EINEN DATENSPEICHER IN EINER ELEKTRONISCHEN SCHALTUNG
    2.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES ZUGRIFFS AUF EINEN DATENSPEICHER IN EINER ELEKTRONISCHEN SCHALTUNG 有权
    方法和设备控制访问的数据存储在电子电路中

    公开(公告)号：EP1979910A1

    公开(公告)日：2008-10-15

    申请号：EP07802731.5

    申请日：2007-08-20

    申请人： Continental Automotive GmbH

    发明人： HOFFMANN, Klaus ,  LITTWIN, Jürgen ,  NÄTHER, Horst ,  OBERGFELL, Armin

    IPC分类号： G11C5/14 ,  G11C5/00 ,  G07C5/08 ,  G01C22/02

    CPC分类号： G01C22/02 ,  G11C5/141 ,  G11C5/143

    摘要： The invention relates to a method, particularly in a tachograph (1) for a motor vehicle, for controlling access to a data store (4) which has a first memory area (2) and a second memory area (3) in an electronic circuit (5). To increase data integrity, the invention proposes that the first memory area (2) be provided for storing data which are to be protected with a higher level of security and that the second memory area (3) be provided for storing data which are to be protected with a lower level of security, that a supply voltage be measured and that if the supply voltage is below a prescribed first voltage threshold then access to the first memory area (2) is blocked. The invention also relates to an apparatus, particularly a tachograph (1) for a motor vehicle, for carrying out the aforementioned method with an electronic circuit (5) which has a data store (4).

    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES ZUGRIFFS AUF EINEN DATENSPEICHER IN EINER ELEKTRONISCHEN SCHALTUNG
    3.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES ZUGRIFFS AUF EINEN DATENSPEICHER IN EINER ELEKTRONISCHEN SCHALTUNG 有权
    方法和设备控制访问的数据存储在电子电路中

    公开(公告)号：EP1979910B1

    公开(公告)日：2011-05-18

    申请号：EP07802731.5

    申请日：2007-08-20

    申请人： Continental Automotive GmbH

    发明人： HOFFMANN, Klaus ,  LITTWIN, Jürgen ,  NÄTHER, Horst ,  OBERGFELL, Armin

    IPC分类号： G11C5/14 ,  G11C5/00 ,  G07C5/08 ,  G01C22/02

    CPC分类号： G01C22/02 ,  G11C5/141 ,  G11C5/143

    摘要： The invention relates to a method, particularly in a tachograph (1) for a motor vehicle, for controlling access to a data store (4) which has a first memory area (2) and a second memory area (3) in an electronic circuit (5). To increase data integrity, the invention proposes that the first memory area (2) be provided for storing data which are to be protected with a higher level of security and that the second memory area (3) be provided for storing data which are to be protected with a lower level of security, that a supply voltage be measured and that if the supply voltage is below a prescribed first voltage threshold then access to the first memory area (2) is blocked. The invention also relates to an apparatus, particularly a tachograph (1) for a motor vehicle, for carrying out the aforementioned method with an electronic circuit (5) which has a data store (4).

    VERFAHREN ZUM BETREIBEN EINES TACHOGRAPHEN UND TACHOGRAPH
    4.
    发明公开
    VERFAHREN ZUM BETREIBEN EINES TACHOGRAPHEN UND TACHOGRAPH 有权
    一种用于运行行驶记录仪和行车记录仪

    公开(公告)号：EP2494526A1

    公开(公告)日：2012-09-05

    申请号：EP10771078.2

    申请日：2010-10-18

    申请人： Continental Automotive GmbH

    发明人： HOFFMANN, Klaus ,  LINDINGER, Andreas

    IPC分类号： G07C5/08 ,  G05B19/042 ,  G06F21/00 ,  H04L9/32

    CPC分类号： G07C5/085 ,  G05B19/0428 ,  G05B2219/23464 ,  G06F21/572 ,  G06F2221/2129 ,  H04L9/3247 ,  H04L2209/84

    摘要： A method for operating a tachograph having an application controller and a safety controller. A memory is associated with the application controller and a further memory is associated with the safety controller. An encrypted program code having at least one associated signature is made available to the safety controller. The encrypted program code is decrypted by means of the security controller and verified by the at least one signature. It is detected whether the decrypted program code (EPC) is intended for the application controller and/or for the security controller. Depending on what is detected, the program in the memory and/or the further program in the further memory is at least partially replaced by the decrypted program code and, depending on a result of the verification, the at least partially replaced program and/or the at least partially replaced further program is released for executing.