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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 8630218 B1

PDFFull Text
Expired
Date of Patent:
Jan. 14, 2014

Filed:

Jul. 23, 2012

Using a transmission control protocol (tcp) channel to save power for virtual private networks (vpns) that use user datagram protocol (udp)

Applicants:

Stephen W. Babin, Cedar Park, TX (US);

John D. Kari, Coeur d'Arlene, ID (US);

Michael L. Masterson, Cedar Park, TX (US);

Inventors:

Stephen W. Babin, Cedar Park, TX (US);

John D. Kari, Coeur d'Arlene, ID (US);

Michael L. Masterson, Cedar Park, TX (US);

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorneys:

Matthew B. Talpis

Gregory K. Goshorn

Greg Goshorn, P.C.

Primary Examiner:

Kevin Mew

Int. Cl.
CPC ...
G08C 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a method for maintaining a Virtual Private Network (VPN) connection between a mobile device and a server over a wireless network in a manner that conserves the power supply of the mobile device and is suitable for connections that employ server-initiated traffic. After a successful login to a VPN server, a VPN client establishes a Transport Control Protocol (TCP) connection and a UDP connection with the server. After a power timeout, the server calculates the elapsed time between the current transmission and the last tunnel traffic. If the elapsed time exceeds a power timeout value, the VPN server transmits a simple control message to the client via the TCP channel. The client then reestablishes the UDP connection to the client and the server resumes transmission on the reestablished UDP channel.

Find Patent Forward Citations

Babin, Stephen. (2014). Using a transmission control protocol (tcp) channel to save power for virtual private networks (vpns) that use user datagram protocol (udp) (U.S. Patent No. 8630218). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8630218

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

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