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:
Oct. 02, 2012
Filed:
Jul. 12, 2006
Minehisa Nagata, Hyogo, JP;
Senichi Onoda, Osaka, JP;
Toshihisa Nakano, Osaka, JP;
Masaya Yamamoto, Arcadia, CA (US);
Kaoru Murase, Nara, JP;
Masayuki Kozuka, Osaka, JP;
Tateo Oishi, Saitama, JP;
Yoshikazu Takashima, Tokyo, JP;
Takashi Yamanishi, Tokyo, JP;
Yoshitomo Osawa, Kanagawa, JP;
Jun Yonemitsu, Kanagawa, JP;
Katsumi Muramatsu, Tokyo, JP;
Minehisa Nagata, Hyogo, JP;
Senichi Onoda, Osaka, JP;
Toshihisa Nakano, Osaka, JP;
Masaya Yamamoto, Arcadia, CA (US);
Kaoru Murase, Nara, JP;
Masayuki Kozuka, Osaka, JP;
Tateo Oishi, Saitama, JP;
Yoshikazu Takashima, Tokyo, JP;
Takashi Yamanishi, Tokyo, JP;
Yoshitomo Osawa, Kanagawa, JP;
Jun Yonemitsu, Kanagawa, JP;
Katsumi Muramatsu, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Therefore, it is possible that by implementing the virtual machine illegitimately, programs run thereon on will be made to operate illegitimately instead of legitimately. A program compares secret information held by the virtual machine with verification information held by the program itself. The program thereby verifies whether the virtual machine that runs the program is implemented legitimately, and is able to reject an illegitimate virtual machine.