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:
Mar. 10, 2009
Filed:
Oct. 15, 2002
Lachlan Michael, Saitama, JP;
Miodrag Mihaljevic, Tokyo, JP;
Lachlan Michael, Saitama, JP;
Miodrag Mihaljevic, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A wireless data communication apparatus having a tamper resistant hardware package which includes a reconfigurable logic device which can be reconfigured in accordance with downloaded program, and a security check device for checking a software program. The encrypted bitfileis decrypted using the terminal secret key(S). Next, the digital signature is decrypted using the government public keyUsing hash function, the decrypted bitfile hash or fingerprint is calculated (S), and if the two match (S) then the software is legitimate and has not been modified since it was approved (S).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile