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. 22, 1996
Filed:
Jul. 15, 1994
Bull S.A., Louveciennes, FR;
Abstract
The process for exchanges between the levels in a hierarchy of memories comprising at least one intermediate level in the hierarchy linked to a higher level in the hierarchy and to a lower level in the hierarchy, with each level in the hierarchy being divided into memories (3, 5, 6) which are in turn divided into blocks (10) containing information (11) associated with addresses (Ad), with the blocks of the memories on the higher level and on the intermediate level in the hierarchy containing copies of the information held in the blocks at the corresponding addresses on the lower level in the hierarchy, and during a modification of a piece of information in a block (10.32) of a memory on the higher level in the hierarchy, invalidating at least some of the information at the corresponding addresses of other memories on the higher level in the hierarchy, and managing an update or an invalidation of the information at the corresponding addresses on the intermediate level and the lower level in the hierarchy, depending on the usefulness of the update.