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 8745414 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 03, 2014

Filed:

Mar. 31, 2012
Applicants:

Hassan Hajji, Yamato, JP;

Seiichi Kawano, Sagamihara, JP;

Takao Moriyama, Yokohama, JP;

Inventors:

Hassan Hajji, Yamato, JP;

Seiichi Kawano, Sagamihara, JP;

Takao Moriyama, Yokohama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); G06F 21/57 (2013.01); G06F 21/74 (2013.01);
U.S. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 21/74 (2013.01); G06F 2221/2105 (2013.01);
Abstract

Unsecure system software and secure system software on the same computer system is switched between. A computer system includes one or more processors, which may not have any built-in security features, memory, and firmware. The memory stores secure system software and unsecure system software. In response to receiving a user signal, the firmware switches from the unsecure system software running on the processors to the secure system software running on the processors (and back again). While the unsecure system software is running, the secure system software is protected from tampering by the unsecure system software.


Find Patent Forward Citations

Hajji, Hassan. (2014). Switching between unsecure system software and secure system software (U.S. Patent No. 8745414). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8745414

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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