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:
Jan. 21, 2020
Filed:
Aug. 03, 2017
Arm Ltd, Cambridge, GB;
Gururaj Saileshwar, Austin, TX (US);
Prakash S. Ramrakhyani, Austin, TX (US);
Wendy Arnott Elsasser, Austin, TX (US);
Arm Limited, Cambridge, GB;
Abstract
A method and apparatus for retrieving data from a memory in which data, an associated message authentication code (MAC) and an associated error correction code (ECC) are stored in a memory such that the data, MAC and ECC can be retrieved together in a single read transaction and written in a single write transaction. Additional read transactions may be used to retrieve counters values that enable the retrieved MAC to be compared with a computed MAC. Still further, node value values of an integrity tree may also be retrieved to enable hash values of the integrity tree to be verified. The MAC and ECC may be stored in a metadata region of a memory module, for example.