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 9838220 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 05, 2017

Filed:

Jun. 09, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Yuji Imai, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/46 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 12/4641 (2013.01); H04L 63/0272 (2013.01); H04L 63/0428 (2013.01); H04L 63/20 (2013.01);
Abstract

A communication method includes determining a difference state of identification numbers of communication providers corresponding to a plurality of relay transfer apparatuses on a passing outward path to an opposing communication apparatus and on a passing return path from the opposing apparatus; and switching a first virtual communication channel set between intranets and a second virtual communication channel set between the intranets to dynamically substitute and use a first communication mode of transmitting and receiving encrypted communication data to and from the opposing apparatus through the first virtual communication channel and a second communication mode of transmitting and receiving plain text communication data to and from the opposing apparatus through the second virtual communication channel, according to the determination of the difference state of the identification numbers of the providers.


Find Patent Forward Citations

Imai, Yuji. (2017). Communication method, communication apparatus and non-transitory readable medium (U.S. Patent No. 9838220). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9838220

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