Patent ID: 6324591
Filing Date: 2001-11-27
Classification: G06F

Abstract:
Process for monitoring the time synchronization between a processing unit and exterior processing means, the said processing unit being clocked by an internal clock signal and the exterior means delivering, by way of at least one input communication means, at least one clocked incoming stream of incoming cues, to at least one input port connected to the said unit, in whichincoming cues of data temporally separated by incoming cues for so-called separation, according to a predetermined scheme for incoming separation, are incorporated into the said incoming stream,the said processing unit is controlled by a first control mechanism which formulates for the said unit, at each cycle of the internal clock at least one read request cue representative on the one hand of the absence or of the presence of an actual request for reading an incoming cue and on the other hand of the nature of the incoming cue possibly requested by the said unit having regard to the predetermined scheme for incoming separation,the read-available contents of the input port are analyzed, in the presence of an actual request for reading an incoming cue, and in the event of an absence of a read-available incoming cue or in the presence of a read-available incoming cue of a different nature from that defined by the said actual read request, a synchronization anomaly cue is formulated.