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. 29, 2003
Filed:
Dec. 27, 2000
Thomas Michael Gooding, Rochester, MN (US);
Roy Glenn Musselman, Rochester, MN (US);
Robert Neill Newshutz, Rochester, MN (US);
Jeffery Joseph Ruedinger, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus are provided for correlating trace data from asynchronous machines, such as asynchronous emulation machines. A data capture signal is received from each of the plurality of asynchronous machines. The data capture signal from each of the plurality of asynchronous machines is sampled. Then the sampled data capture signal from each of the plurality of asynchronous machines and a cycle count are stored. A trace synchronization system is coupled to each of the plurality of asynchronous machines for receiving the data capture signal from each of the plurality of asynchronous machines. The trace synchronization system operates no slower than the data capture signal from each of the plurality of asynchronous machines, so that no data capture signals are missed.