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. 05, 2015
Filed:
Jun. 15, 2012
Daisuke Oshida, Kanagawa, JP;
Shigeru Furuta, Kanagawa, JP;
Masayuki Hirokawa, Kanagawa, JP;
Akira Yamazaki, Kanagawa, JP;
Takashi Fujimori, Kanagawa, JP;
Shigemasa Shiota, Kanagawa, JP;
Daisuke Oshida, Kanagawa, JP;
Shigeru Furuta, Kanagawa, JP;
Masayuki Hirokawa, Kanagawa, JP;
Akira Yamazaki, Kanagawa, JP;
Takashi Fujimori, Kanagawa, JP;
Shigemasa Shiota, Kanagawa, JP;
Renesas Electronics Corporation, Kawasaki-shi, JP;
Abstract
A semiconductor device has: a unique code generating unit generating an initial unique code which is a value unique to a device and includes an error in a random bit; a first error correcting unit correcting an error in the initial unique code to generate an intermediate unique code; a second error correcting unit correcting an error in the intermediate unique code to generate a first determinate unique code; and a decrypting unit decrypting, with the first determinate unique code, transmission data obtained by encrypting confidential information with key information generated on the basis of the intermediate unique code by an external device to generate confidential information.