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:
Apr. 05, 2016
Filed:
Jul. 11, 2012
Applicants:
Shingo Kinoshita, Tokyo, JP;
Koji Kawada, Tokyo, JP;
Inventors:
Shingo Kinoshita, Tokyo, JP;
Koji Kawada, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/10 (2013.01);
U.S. Cl.
CPC ...
G06F 21/105 (2013.01);
Abstract
A license management device causes a wireless device to enter a state in which all functions are restricted by overwriting key information of the wireless device with a default key specific to the wireless device. A key generating device generates an upgrade key specific to the wireless device, and transmits the update key to the license management device. The license management device can release a restriction of a function in the wireless device by applying the upgrade key to the key information of the wireless device overwritten with the default key.