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. 24, 2012
Filed:
Jul. 25, 2008
Jeom Gab Kim, Seoul, KR;
Jeom Gab Kim, Seoul, KR;
Anhlab, Inc., , KR;
Abstract
Disclosed is a method of protecting an input/output packet of a USB device. The method includes: a) registering a filter driver to a USB host controller within a system, and loading the filter driver; b) generating a first filter driver object (filter device object; FiDO), monitoring input/output packets of all USB devices by attaching the first filter driver object (FiDO) to a device object (functional device object; FDO) for the USB host controller; c) determining if there is an identifier in the input/output packet; d) when it is determined that there is the identifier in the input/output packet, registering a data protection routine in the input/output packet; e) copying the input/output packet from the data protection routine to a predetermined region, and exchanging the input/output packet with a predetermined value.