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:
Nov. 11, 2014
Filed:
Mar. 03, 2010
Takashi Matsunaka, Fujimino, JP;
Yoji Kishi, Fujimino, JP;
Takayuki Warabino, Fujimino, JP;
KDDI Corporation, Tokyo, JP;
Abstract
In a case where another user's communication terminal (nTE) departs from a group, user's communication terminal (TE) updates encryption information, using the terminal individual information of only the communication terminals (nTEand nTE) which remain in the group (PN). User's communication terminal (TE) encrypts the PN-shared key (KPN), using the updated encryption information. User's communication terminal (TE) transmits the encrypted shared key information obtained from this encryption to a management device (PNSP), and updates the encrypted shared key information stored in the management device (PNSP).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile