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:
Dec. 07, 2010
Filed:
Apr. 23, 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
A system including a secure LSIestablishes a communication path to/from a server(UD), and receives a common key-encrypted program generated by encryption with a common key and transmitted from the server(UDand UD). The received common key-encrypted program is decrypted to generate a raw program, and the raw program is re-encrypted with an inherent key to newly generate an inherent key-encrypted program, which is stored in an external memory.