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. 19, 2020
Filed:
Nov. 01, 2017
Arm Limited, Cambridge, GB;
ARM Limited, Cambridge, GB;
Abstract
An apparatuscomprises at least three processing circuitsto perform redundant processing of a common thread of program instructions. Error detection circuitryis provided comprising a number of comparatorsfor detecting a mismatch between signals on corresponding signal nodesin the processing circuits. When a comparatordetects a mismatch, this triggers a recovery process. The error detection circuitrygenerates an unresolvable error signalindicating that a detected area is unresolvable by the recovery process when, during the recovery process, a mismatch is detected by one of the proper subsetof the comparators. By considering fewer comparatorsduring the recovery process than during normal operation, the chances of unrecoverable errors being detected can be reduced, increasing system availability.