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:
Aug. 13, 2002
Filed:
Nov. 25, 1998
Marie-Antoinette de Bonis-Hamelin, Saint Egreve, FR;
Zoltan Menyhart, Meylan, FR;
Bull, S.A., Louveciennes, FR;
Abstract
The invention relates to an architecture for management of vital data in a multi-module digital data processing machine ( ) and the process for its implementation. Each module (M through M ) comprises a physical nonvolatile memory (NVM through NVM ) in which vital data is stored. A first area (G through G ) stores global vital data obtained by copying and associated with the operation of the machine ( ). A second area (L through L ) stores local vital data associated with the operation of the module (M through M ). A virtual nonvolatile memory in two parts, global memory and local memory divided into windows, makes it possible, under the control of an extension of the operating system, to address the physical nonvolatile memories (NVM through NVM ). The windows of a defective module (M through M ) are not visible. At the startup, a specific firmware determines the state of the modules (M through M ). After that, the integrity of the vital data is under the control of the extension of the operating system.