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:
May. 05, 1992
Filed:
Jul. 26, 1989
Applicant:
Inventor:
Tadashi Hara, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 165 ; 371 491 ; 371 511 ;
Abstract
In order to simplify a hardware arrangement for obtaining error information in a pipelined data processing system which includes serially coupled stages, two separate (first and second) error signal storage means are provided. The first error signal storage means has a plurality of one-bit (for example) memory cells which are respectively assigned to the pipeline stages. The first error signal storage means defines one pipeline stage in which an error is initially detected. The second error signal storage means responds to an error detection signal and receives error analyzing information from the last stage of the pipeline.