05202980 is referenced by 31 patents and cites 10 patents.

In an information processing system comprising a plurality of processor units each of which comprises a memory unit, an execution processor, an information transfer unit, and a bus line connected to one another, the memory unit has a control information area and a data area for storing a control information signal and a main data signal, respectively, and a saving area for saving the main data signal which is stored as a copied signal of the data signal. When the copied signal is saved into the saving area, an information transfer unit receives, through the bus line, the main data signal which is read out of the memory unit and which is transferred to the other processor unit. An additional data signal is produced by the other processor unit and stored through the information transfer unit into the saving area. Inasmuch as both the main and the additional data signals are stored in each processor unit, each processor can take over processing carried out in the other processor unit when the other processor unit is faulty.

Title
Information processing system capable of readily taking over processing of a faulty processor
Application Number
7/547005
Publication Number
5202980
Application Date
July 2, 1990
Publication Date
April 13, 1993
Inventor
Yoshiaki Sugiyama
Tokyo
JP
Kazuhito Koguchi
Tokyo
JP
Shinichi Nomiyama
Ehime
JP
Nobuki Morita
Tokyo
JP
Agent
Sughrue Mion Zinn Macpeak & Seas
Assignee
NEC Corporation
JP
IPC
G06F 11/00
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