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:
Jul. 11, 2000
Filed:
Aug. 27, 1997
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A novel checkpoint acquisition accelerating apparatus is disclosed. When data are updated on a cache memory, a before-image acquiring section acquires the update address and the previous data and stores them in a before-image storing section. A cache flush executing section issues to a system bus a bus command requesting the contents of the updated cache block to be written-back to a main memory using all the addresses stored in the before-image storing section. A main memory restoring section, on the other hand, issues bus command requesting all the previous data stored in the before-image storing section to be updated and written in the main memory on last-in first-out basis. As a result, a checkpoint acquisition accelerating apparatus is realized which is capable of easily realizing the checkpoint and recovery function in a computer including at least a standard uniprocessor.