Patent ID: 7263626

Claim:
Method for synchronizing computer clocks in networks used for information transfer, comprising the steps of: sending a first data packet from a sender to an addressee; inserting a time stamp into said data packet at the moment said data packet is sent by the sender; inserting a time stamp into said data packet when said data packet is received by the addressee, wherein said time stamps are inserted by a post-connected clock module into said data packet, after release of transfer of the data packet by a network controller; and sending said data packet or a receipt confirmation back from said addressee to said sender, wherein a CPU of the sender generates configuration signals for correction of one or more of a clock module of the sender and a clock module of the addressee, said configuration signals being equipped with an identifier, wherein said generation of configuration signals is based on a comparison between the time stamp inserted at the time of sending said data packet and the time stamp inserted at the time of receiving said data packet, considering known or measured run times of signals between the addressee and the sender, said configuration signals being sent to and processed by one or more of the clock modules of the sender and of the addressee, thereby achieving synchronization.