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:
Dec. 22, 2009
Filed:
Apr. 12, 2005
Applicant:
Wai Yim, San Jose, CA (US);
Inventor:
Wai Yim, San Jose, CA (US);
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/00 (2006.01); G06F 15/16 (2006.01); G06F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A firewall protects an Ethernet network from a first larger network, e.g., the Internet. A first server on the Ethernet network stores an encrypted private key, decrypts the private key using a passphrase, and communicates with clients on the first network using the private key. A second server on the Ethernet network determines whether an intrusion has occurred from the first network into the first server and provides the passphrase to the first server only when no intrusion has occurred from the first network into the first server. The invention can be realized in apparatuses, methods, and/or instruction sets.