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.

Date of Patent:
May. 31, 2016

Filed:

Sep. 20, 2013
Applicant:

Fortinet, Inc., Sunnyvale, CA (US);

Inventors:

Xu Zhou, Milpitas, CA (US);

Lin Huang, Fremont, CA (US);

Michael Xie, Palo Alto, CA (US);

Assignee:

Fortinet, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 21/56 (2013.01);
U.S. Cl.
CPC ...
G06F 21/567 (2013.01); G06F 21/562 (2013.01); G06F 21/564 (2013.01);
Abstract

Circuits and methods are provided for detecting, identifying and/or removing undesired content. According to one embodiment, a method for virus co-processing is provided. A general purpose processor stores a data segment to its system memory using a virtual address. The system memory has stored therein a page directory and a page table containing information for translating virtual addresses to physical addresses within a physical address space of the system memory. A virus processing hardware accelerator translates the virtual address of the data segment to a physical address of the data segment based on the page directory and the page table. The hardware accelerator accesses the data segment based on the physical address. The hardware accelerator scans the data segment for viruses by executing multiple pattern comparisons against the data segment. The hardware accelerator returns a result of the scanning to the general purpose processor via the system memory.


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