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:
Jul. 22, 2003
Filed:
Jun. 18, 1999
Applicant:
Inventor:
Leonard J. Galasso, Rancho Santa Margarita, CA (US);
Assignee:
Phoenix Technologies Ltd., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/24 ;
U.S. Cl.
CPC ...
G06F 1/24 ;
Abstract
A flash memory is secured by disabling write access to the device, thereby preventing unauthorized updating or tampering of the contents. A cryptoengine is included in an integrated circuit (IC) with the flash memory. An attempt to write to the flash memory is successful only if a received encrypted certificate is authenticated by the cryptoengine. If not authenticated, the write enable signal line and the power applied to the flash memory are disabled.
Galasso, Leonard. (2003). Secure memory (U.S. Patent No. 6598165). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6598165
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile