Patent ID: 7225368

Claim:
An error logging and analysis system, comprising: an error detection unit; an error logging device; and an error analysis unit; wherein, within a period of time, the error detection unit is adapted to detect a first occurrence of a particular type of fault condition, the error detection unit is adapted to determine a first time of the first occurrence, the error detection unit is adapted to assign an initial error severity weight to the first occurrence, the error logging device is adapted to record the first time and the initial error severity weight, the error detection unit is adapted to detect a second occurrence of the particular type of fault condition, the error detection unit is adapted to determine a second time of the second occurrence, the error logging device is adapted to record the second time, the error analysis unit is adapted to determine a first interval between the first occurrence and the second occurrence, the error analysis unit is adapted to generate a first error frequency factor related to the first interval, the error analysis unit is adapted to generate a first weighted error rate that is a first function of the initial error severity weight and the first error frequency factor, the error logging device is adapted to subsequently record the first weighted error rate, the error detection unit is adapted to detect a third occurrence of the particular type of fault condition, the error detection unit is adapted to determine a third time corresponding to the third occurrence, the error logging device is adapted to record the third time, the error analysis unit is adapted to determine a second interval between the second occurrence and the third occurrence, the error analysis unit is adapted to generate a second error frequency factor related to the second interval, and the error analysis unit is adapted to generate a second weighted error rate that is a second function of the initial error severity weight, the second error frequency factor, and the first weighted error rate.