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. 30, 2013
Filed:
Aug. 01, 2008
Mie Noda, Osaka, JP;
Mie Noda, Osaka, JP;
NEC System Technologies, Ltd., Osaka, JP;
Abstract
A software defined radio device and a download server store a plurality of common keys in common key data. The download server arbitrarily determines a common key from the common key data and conveys information identifying the common key to be used to the software defined radio device. An authenticator of the software defined radio device identifies a common key from the common key data using the information identifying the common key, authenticates using the common key, and performs subsequent communications using the common key. When sending software, a hash value is attached for confirming the security. A device ID of the software defined radio device is also attached to data for confirming which software defined radio device receives the software. The software is securely downloaded by a common key encryption having smaller processing requirements than those of a public key encryption.