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:
May. 30, 2023
Filed:
Mar. 18, 2019
Applicant:
Hitachi Kokusai Electric Inc., Tokyo, JP;
Inventor:
Satoru Yasui, Tokyo, JP;
Assignee:
Hitachi Kokusai Electric Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04W 12/04 (2021.01); H04W 12/03 (2021.01); H04L 9/08 (2006.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
H04W 12/04 (2013.01); H04L 9/0869 (2013.01); H04L 9/14 (2013.01); H04W 12/03 (2021.01);
Abstract
A public key of a sensor node key pair is transmitted from a sensor nodeto a servervia sensor network communication, and furthermore is transmitted from the serverto a mobile terminalvia mobile line communication. In addition, a public key of a mobile terminal key pair is transmitted from the mobile terminalto the sensor nodethrough local communication. Thus, the configuration allows the sensor nodeand the mobile terminalto generate a common key by combining their own private key and the public key of the counterpart in order to encrypt the local communication by using this common key.