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:
Nov. 17, 2020
Filed:
Feb. 05, 2019
International Business Machines Corporation, Armonk, NY (US);
Daniel Worledge, San Jose, CA (US);
John K. DeBrosse, Colchester, VT (US);
Kotb Jabeur, Essex Junction, VT (US);
Matthew R. Wordeman, Kula, HI (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A dynamic redundancy memory includes a redundancy control module and an ECC module. The ECC detects bit errors, stores the addresses of the error bits, counts the bit errors. If the number of errors exceeds a threshold, the ECC identifies the address as a suspect bit and sends a suspect bit signal to the redundancy control module, which determines whether the suspect bit address is already stored in a redundancy element. If already stored, the element is marked bad, the address of the suspect bit is replaced with a new redundant address and the suspect bit address is stored in a good unused element. The ECC determines whether the error occurrences at the address exceeds a bit error rate threshold. If the error rate threshold is exceeded, the ECC identifies the address as suspect bit and sends the suspect bit signal to the redundancy control module.