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:
Jun. 02, 1992
Filed:
Feb. 21, 1989
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395575 ; 364228 ; 3642281 ; 3642283 ; 3642382 ; 3642383 ; 3642419 ; 364260 ; 364262 ; 3642622 ; 364264 ; 364265 ; 3642651 ; 3642655 ; 364266 ; 3642664 ; 3642665 ; 364267 ; 3642673 ; 364268 ; 3642681 ; 3642683 ; 3642686 ; 3642687 ; 3642689 ; 371-82 ;
Abstract
An interrupt control system having a plurality of access paths includes a control memory for storing control information for controlling all of the access paths. When an error occurs on a path, a control unit controlling the respective access paths refers to and updates the control memory to execute a channel reconnection without using the path on which the error has occurred, and then executes a retry command to carry out an error recovery operation.