Patent ID: 6760687
Filing Date: 2004-07-06
Classification: G05B,G06F,Y02P

Abstract:
A sequence of events detection system comprising:a master clock; a first device communicatively coupled to the master clock including a first counter and a secondary clock time synchronized to the master clock; and a second device communicatively coupled to the first device including an event buffer and a second counter; wherein the second device includes a processor programmed to, upon the detection of an event, store an indication of the event in the event buffer and store the value of the second counter at the time of the detection of the event as an event counter value in the event buffer and further programmed to send an event message to the first device, the event message including the indication of the event and an indication of the event counter value for the event; and wherein the first device includes a processor programmed to use the first counter, the secondary clock and the indication of the event counter value within the event message to assign an absolute time to the detection of the event.