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, 1998
Filed:
Dec. 17, 1997
Hitoshi Ishida, Kanagawa-ken, JP;
Minoru Shiga, Kanagawa-ken, JP;
Toyohito Hatashita, Kanagawa-ken, JP;
Yuichi Tokunaga, Kanagawa-ken, JP;
Hiroyuki Fukuda, Kanagawa-ken, JP;
Shunyo Minesaki, Kanagawa-ken, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A fault tolerant computer which executes the cache flush operation at a high speed and has the real time characteristic. A processor module 301 is equipped with a cache memory so that the entry address of the updated cache block within the cache memory is stored in a stack. The cache flush is effected only with respect to the entry address in the stack when a recovery-point setting condition due to a timer or the like is satisfied. A memory module 303 has an arrangement doubled in the same storage physical space and is equipped with a buffer memory for temporarily storing the transferred cache block, so that the cache block is simultaneously transferred to a pair of buffer memories.