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:
Feb. 10, 2004
Filed:
May. 16, 2001
Philippa Joy Guthrie, Bucks, GB;
William Thomas Charnell, Bucks, GB;
Stephen Darnell, Berks, GB;
Blaise Abel Alec Dias, Middx, GB;
Wayne Plummer, Bucks, GB;
Jeremy Paul Kramskoy, Surrey, GB;
Jeremy James Sexton, Herts, GB;
Michael John Wynn, Berks, GB;
Keith Rautenback, Bucks, GB;
Stephen Paul Thomas, Bucks, GB;
Esmertec AG, , CH;
Abstract
A method and system of testing and verifying computer code in a multi-threaded environment. The method includes testing a first piece of computer code that is an implementation of a specification against a second piece of computer code that is a different implementation of the specification. Corresponding synchronization points in the first and second pieces of code are defined and the first piece of code is executed to the first synchronization point of the first piece of code. A state message is generated and sent to the second piece of code. The second piece of code is executed to the first synchronization point of the second piece of code and then a state after message is generated and compared to the state before message. The synchronization points are generally selected from a group including conditional transfers of control, Method calls, Method returns, and backward transfers of control.