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.:

US 11442718 B1

Date of Patent:

Sep. 13, 2022

Filed:

Mar. 02, 2021

Embedded system and method of controlling non-volatile memory to perform firmware update

Applicant:

Realtek Semiconductor Corp., HsinChu, TW;

Inventor:

Sheng-Kai Hung, HsinChu, TW;

Assignee:

Realtek Semiconductor Corp., HsinChu, TW;

Attorney:

Winston Hsu

Primary Examiner:

Geoffrey R St Leger

Int. Cl.

CPC ...

G06F 8/65 (2018.01); G06F 11/14 (2006.01); G06F 11/07 (2006.01); G06F 9/4401 (2018.01); G06F 8/61 (2018.01);

U.S. Cl.

CPC ...

G06F 8/65 (2013.01); G06F 9/4401 (2013.01); G06F 11/0757 (2013.01); G06F 11/1417 (2013.01); G06F 11/1433 (2013.01); G06F 11/1438 (2013.01); G06F 8/61 (2013.01); G06F 8/63 (2013.01);

Abstract

A non-volatile memory includes a first block and a second block. The first block is used to store first firmware. The second block is used to store second firmware. A method of controlling the non-volatile memory includes comparing a version of the first firmware and a version of the second firmware, if a comparison result between the version of the first firmware and the version of the second firmware indicates that the second firmware is newer than the first firmware, employing the second firmware to perform a boot process, and if the boot process is successful, upgrading a portion of a firmware image to the first block whenever there is a firmware upgrade request after the boot process.

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