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. 29, 2012
Filed:
Jul. 09, 2008
Makoto Fujiwara, Kyoto, JP;
Yusuke Nemoto, Hyogo, JP;
Junichi Yasui, Osaka, JP;
Takuji Maeda, Osaka, JP;
Takayuki Ito, Osaka, JP;
Yasushi Yamada, Aichi, JP;
Shinji Inoue, Osaka, JP;
Makoto Fujiwara, Kyoto, JP;
Yusuke Nemoto, Hyogo, JP;
Junichi Yasui, Osaka, JP;
Takuji Maeda, Osaka, JP;
Takayuki Ito, Osaka, JP;
Yasushi Yamada, Aichi, JP;
Shinji Inoue, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An development environment of a high security level is provided for a key-installed system. Development of a program for a system having an LSI device which includes a secure memory is performed by providing another LSI device having the same structure and setting the provided LSI device to a development mode which is different from a product operation mode. Alternatively, the provided LSI device is set to an administrator mode to perform development and encryption of a key-generation program. The LSI device is set to a key-generation mode to execute the encrypted key-generation program, thereby generating various keys.