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. 15, 2012
Filed:
Jan. 30, 2008
Hirokazu Sugiyama, Kanagawa, JP;
Hirokazu Sugiyama, Kanagawa, JP;
FeliCa Networks, Inc., Tokyo, JP;
Abstract
An information processing device is provided with a tamper-proof IC chip that includes a storage area and that can process data from the storage area, and with a storage module that includes a storage area external to the IC chip. First key data stored in the IC chip storage area and second key data stored in the storage module storage area are used for two-way authentication between the IC chip and the storage module and for encrypting and decrypting data in the storage module storage area. The IC chip storage area includes a cache area to temporarily store data. The IC chip, following a request by an external device, uses the key data for two-way authentication with the storage module, securely reads data to satisfy the request from the storage module storage area into the IC chip cache area, and processes the data read into the cache area.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile