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:
Apr. 28, 1987
Filed:
Sep. 12, 1986
Venkatramiah Venkatesh, Milpitas, CA (US);
Robert M Maier, San Jose, CA (US);
Amdahl Corporation, Sunnyvale, CA (US);
Abstract
Disclosed is an error-tracking unit within a data processing system. Each data location to be checked for error and to be located in the case of an error is provided with error detection circuitry. Each data location is additionally provided with an error history register for storing an error signal. When the error-detecting circuit detects an error, the error history register is enabled to store the error signal. Whenever an error is detected, the error history registers are inhibited from further change so that errors are not propagated. The error detection also causes a machine check signal which, in general, prevents the data processing system from normal processing.