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. 31, 2011
Filed:
Apr. 28, 2006
Yoshiko Nishimura, Hiroshima, JP;
Kazuyuki Kashiwabara, Hiroshima, JP;
Eiji Kawahara, Hiroshima, JP;
Yoshiko Nishimura, Hiroshima, JP;
Kazuyuki Kashiwabara, Hiroshima, JP;
Eiji Kawahara, Hiroshima, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A memory card receives an encrypted application program from a host apparatus. The memory card includes an Integrated Circuit (IC) card unit having a tamper resistant function, and a flash memory unit. The IC card unit also includes a tamper resistant storage unit, a program acquisition unit that acquires the encrypted application program from the host apparatus, a storage control unit which stores the acquired encrypted application program in the tamper resistant storage unit or the flash memory unit, and a move control unit. The memory control unit, when the application program stored in the tamper resistant storage unit is to be executed and the size of the application program to be executed in the decrypted form exceeds the size of free space of the tamper resistant storage unit, moves an arbitrary encrypted application program stored in the tamper resistant storage unit to the flash memory unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile