The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2001
Filed:
Feb. 18, 1998
Eric Boivin, Laval, CA;
Hanan Ahmed, Pierrefords, CA;
Francois Prud'Homme, Ile Bizard, CA;
Vince Ragosta, Montreal, CA;
Abstract
In a state driven machine logically sub-divided into a plurality of blocks, with each block including a sub-set of a total number of process defining operating states and transition paths, plural records each relating to a certain execution are associated with each block. A log is maintained on a per execution basis of events (such as state transitions and actions) which occur for that execution. In one implementation, the log is maintained in each record to store events occurring for the certain execution within the block associated with that record. In another implementation, the log is maintained to store events occurring for the certain execution across all implicated blocks. Using the information stored in the log, it is possible to trace back along process execution to identify an origin of a fault in the process implemented by the state driven machine.