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:
Oct. 27, 2009
Filed:
Sep. 16, 2005
Mark B. Gagner, West Chicago, IL (US);
Craig J. Sylla, Round Lake, IL (US);
Nevin J. Liber, Libertyville, IL (US);
Paul Radek, Naperville, IL (US);
Stephen A. Canterbury, Antioch, IL (US);
Mark B. Gagner, West Chicago, IL (US);
Craig J. Sylla, Round Lake, IL (US);
Nevin J. Liber, Libertyville, IL (US);
Paul Radek, Naperville, IL (US);
Stephen A. Canterbury, Antioch, IL (US);
WMS Gaming Inc., Waukegan, IL (US);
Abstract
A gaming machine includes two persistent random access memory sections. Critical data written to one memory section is copied to the other. Systems and methods for managing the two memory sections may include a transaction engine executable on a gaming machine processor. Alternatively, the transaction engine may execute or on a memory controller implemented as an Application Specific Integrated Circuit, a separate processor, or programmable logic. A transaction state may be used to determine which of the copies in the two memory sections is valid.