ELECTRONIC BOARD PROVIDED WITH SECURITY FUNCTIONS AND METHOD FOR ENSURING ELECTRONIC BOARD SECURITY
摘要
<p>In order to prevent sensitive signals interception between electronic circuits (2.2, 2.3) on an electronic board (2.1), these circuits are positioned in a secure zone in such a way that they are no more than a predetermined distance apart. The circuits in the secure zone include at least a control circuit (2.2). The electronic board also includes a further zone defining a non-secure environment in which the spacing constraint does not apply to the circuits (2.4) therein. Communication between the circuits in the secure zone and the non-secure environment takes place via a communication circuit (2.5) which either lets through or bars the electrical signals. The flow of electrical signals through the communication circuit is controlled by an electrical control signal (2.6) from the control circuit. The invention also concerns a method for locking the control circuit when the electrical status of the signal flow control signal does not match the status applied by the control circuit.</p>
申请公布号
WO2007141233(A1)
申请公布日期
2007.12.13
申请号
WO2007EP55458
申请日期
2007.06.04
申请人
THOMSON LICENSING;GUILLOT, PHILIPPE;VIGNERON, PATRICK;LAUNAY, PHILIPPE
发明人
GUILLOT, PHILIPPE;VIGNERON, PATRICK;LAUNAY, PHILIPPE